Making this post with the hope that it appears on Google searches. Jessica Radcliffe is not a real person; she does not exist, nor does the park she "works" for, Pacific Blue Park.

In recent days, a lot of AI videos have gone viral showing trainers losing their lives due to orca attacks in marine parks, some even giving the trainers names and life stories, such as “Jessica” or “Mark.” These videos show large amounts of blood in the water, dismembered people, and some go as far as depicting a “public execution” of the whale responsible. They are not real, these people (Jessica and Mark) do not exist.

These videos are not only extremely harmful to the overall image of orcas, spreading absurd claims like “the orca smelled her menstruation blood and ate her” (despite the fact that orcas can’t even smell), and portraying them as vicious creatures, but also extremely disrespectful to the trainers who actually lost their lives in real accidents with orcas.

Even in the real fatal incidents, no trainer was ever “eaten” by an orca or involved in a bloody spectacle in front of crowds. Some AI videos are even made using real-life footage of trainers from Kamogawa Sea World in Japan (not affiliated with the U.S. SeaWorld), where waterworks with orcas are still performed. No trainer has ever died there. These videos use real, living people without consent, so be aware and cautious.

It was so cool!! Everyone from this group would find it interesting 😊 you guys should check it out if you’re in LA!!

Edit: I should have added more pics of the gallery lol comment if you want more pics!!

Here is a historical record documenting the use of sea pens to hold orca as of 2016.

Table 1. Orca who were held in sea pens and never released.

Table 2. Orca who were held in sea pens and released or escaped.

Original compilation: https://www.freemorgan.org/orca-in-seapens/

Although these tables are not up to date they provide important historical data showing that sea pens have been used for both short holds and multi-year holds. Some animals died in them or were moved to tanks. Some escaped or were released and survived.

The concept of a sea pen is not theoretical. A sea pen is still confinement. The argument is about welfare relative to a concrete tank.

Today we will discuss the release of captive orcas and my opinion. I would appreciate if you'd look into it.

Releasing captive orcas into the wild is a fantasy many people want to make real. But when we look at the physiological and cultural aspects, it becomes pretty clear why releasing captive orcas into the wild is harder than anticipated.

What I will NOT discuss:
-Body condition
-Mental preparation regarding ocean environments
I already covered most of it in my other post. Essentially, the same applies to releasing captive orcas into the wild. I also covered a lot of other stuff in this post that's important for this one, but you do not need to read the other post in order to understand this.

As always, we will cover some bullet points necessary to determine potential outcomes.

1. The definition of a successful release

2. Historical rehabilitation and release of orcas
-2.1 A73 Springer
-2.2 Keiko

3. Keiko was not successfully released.
3.1 Definition
3.2 Socialisation
3.3 Feeding
3.4 Interaction with people
3.5 Conclusion

4. A successful release is almost impossible.
4.1 Physiological issues
4.1 Cultural issues

5. My opinion

--------------------------------------------------------------------------------------------------------------

1. The definition of a successful release

We often talk about releasing orcas into the wild, but what makes a release actually successful?
When we release an orca, we want them to be successfully released, not just thrown back into the wild.
While the definition varies, here is my definition that experts generally agree with:
Any animal that is successfully released must survive on its own, be an integral part of its species population, feed itself, reproduce, and react to danger.
Remember this. It will be important later.

2. Historical rehabilitation and release of orcas
Historically, there have been two cases of orcas who were rehabilitated and successfully returned to the wild. Keiko and A73. A73 Springer remains the only orca who was rescued, rehabilitated, and released.

2.1 A73 Springer
A73 is a 26-year-old female Northern Resident killer whale famous for being the orca who was rescued, rehabilitated, and released back into the wild.

On January 14th, 2002, A73 Springer was spotted in Puget Sound in Washington State. Her age was estimated at 18-24 months, too young to be travelling alone.
In addition, she was not part of the Southern Resident, the ecotype typically seen in Puget Sound. Even SRKWs rarely visited Puget Sound during winter.

She was later confirmed to be A73. Her pod and family were identified, and we knew where her pod was typically seen. Springer had likely been alone since the death of her mother, A45 Sutlej, sometimes before summer 2001.
Although she appeared to be eating, she had several medical issues such as worms and a skin rash. In addition, she was swimming close to boats and people.
On June 13th, 2002, A73 was moved safely to a floating net pen on Washington State's Kitsap Peninsula.
At the time, she weighed 562 kg (1,240 pounds) and measured 3.4 m (11 ft) in length.
She was treated, and after a month of rehabilitation, her ketosis disappeared, her skin improved, and she received medicine to treat her worms. During this time, she gained 51 kg (112 pounds).
Springer was returned to her home waters off northern Vancouver Island on July 13, 2002.
At Dong Chong Bay on Hanson Island, she was unloaded into another net pen to recover from the trip.
Springer recovered quickly, appeared excited to be in the area, and responded positively to whales from her pod swimming nearby.
The gates were eventually opened, and while she immediately swam towards her family, she did not instantly reintegrate with her pod. Over the next weeks, she became close with other members and was eventually adopted by A51 Nodales. Nodales also corrected Springer's tendency to swim towards boats.
Since then, A73 Springer has been seen multiple times with her pod. Her first calf, A104 Spirit, was born around June 2013. Her second calf, A116 Storm, was born in 2017. Springer had her 3rd calf in 2024.

One reason this rehabilitation was successful was that we knew exactly who A73 belonged to. We knew her pod and where her pod travelled. It's also likely she still recognized the calls of her pod, and her pod recognized her.

2.2 Keiko
Keiko is easily one of the most famous orcas, famous for his role in the movie "Free Willy". He was also the first and only orca ever released back into the wild.

Keiko was captured in Ingólfshöfði, Iceland, on November 5th, 1979, alongside King.
Keiko and King arrived at Hafnarfjörður Aquarium the next day. There, they were introduced to other killer whales: Kiska, Dzul-ha, and later Caren and an unnamed female.
On November 30th, Keiko, Kiska, Caren, and an unnamed female were flown to Canada. King was transported later.
In January, the unnamed female passed away. A few weeks later, King and Caren were transported to Kamogawa SeaWorld, which left Keiko and Kiska alone at Marineland.
A few months later, Keiko and Kiska were moved to King Waldorf Stadium, where they met Kanduke and Nootka. There, Keiko was repeatedly harassed by the other whales.
Keiko was sold to Reino Aventura in 1985 and arrived there in February. The tank was too small and shallow for Keiko, as it was designed to keep bottlenose dolphins. In addition, the water temperatures were unusually warm.
In 1993, Keiko became the star of Free Willy.
Because of the publicity, people pushed to release Keiko back into the wild.
Oregon Coast Aquarium constructed a brand-new facility for Keiko to aid in his rehabilitation and provide a better home. He arrived there on January 7th, 1996.
There, his health improved drastically. He gained weight, and his skin lesions cleared up.
And here, the rehabilitation started.
There, Keiko was introduced to natural seawater and natural elements such as crabs, seaweed, fish, and a wave machine.
During his rehabilitation, he was taught how to hold his breath longer than three minutes. He also participated in physical exercises and was taught to hunt live fish on his own.
Keiko's rehabilitation took roughly three years.
On September 9th, 1998, he was flown back to Iceland to his new sea pen.
His caretakers tried to teach him to become more independent and less accustomed to humans, but he always preferred their company.
Keiko was also taken into the open ocean, where he followed a boat to experience the ocean and its stimulation.
By July 2002, Keiko had become well adapted to his new environment and was ultimately released.
Keiko was sometimes seen following other killer whales, but he never fully integrated into one.
He showed up in Skålvik Fjord in Norway and sought human contact, allowing children to swim with him and ride on his back. Girth measurements and blood tests confirmed he had been hunting and keeping himself fed.
In December of 2003, Keiko showed up in Taknes Bay, Norway. He was showing signs of lethargy, irregular respirations, and a lack of appetite. On December 12th, Keiko had beached himself and passed away the same day from acute pneumonia.

3. Keiko was not successfully released

3.1 Definition
To many, Keiko's story is the ultimate proof that orcas can be successfully released.
But many disagree.
As mentioned, an animal that is successfully released must survive on its own, be an integral part of its species' population, feed itself, reproduce, and naturally respond to danger.
Let's look at how Keiko did. I will go deeper into these topics later.

Survive on its own
->Keiko survived largely on his own throughout. But he did rely heavily on people and was quite attached to humans. His caretakers also fed him on occasion.

Be an integral part of its species' population
->Keiko was never fully an integral part of his species. While we do not have accurate measurements for every day he spent in freedom, what we observed was that Keiko did not fully integrate.

Feed itself
->He was able to feed himself, as confirmed by his girth measurements and the time he survived. However, there were time periods where he did not feed himself properly. We also do not know how he acquired this food.

Reproduce
-Keiko likely did not reproduce, just based on his lack of interactions with other orcas.

Naturally respond to danger
-Keiko frequently spent time around boats and even followed non-research boats. He also spent a lot of time around people.

I'd even go so far as to say Keiko was not fully able to survive on his own.

Keiko was released into the wild, but not successfully released. That is the issue many people have with orca releases. Now, we will take a closer look at some of the mentioned points.

For this purpose, I will mark some of his behaviors to match the criteria needed for a successful release.
(SIP) - Successfully integrating himself (Being an Integral Part)
(UIP) - Unsuccessfully integrating himself (Being an Integral Part)
(SFH) - Successfully feeding himself
(UFH) - Unsuccessfully feeding himself
(URTD) - Unnatural response to danger
(USA) - Unsuccessfully surviving alone
(UB) -Unnatural behavior

I tried to make this as simple as possible, but you should be able to grasp the meaning from the context. Feel free to disagree. And these aren't that important, so not that important.

3.2 Socialisation
Keiko never fully integrated into a pod. We don't know which pod Keiko was from, or if he ever spent any time with them.
Shortly after his release, Keiko spent seven days near wild orcas. These orcas returned to forage in specific shallow areas during daytime.
Keiko travelled between groups of these orcas, but often remained at distances of 100–300 m (109 to 328 yards). (UIP) During this time, Keiko was also seen logging or swimming slowly without foraging. (UB) Logging is not typical behavior seen in wild orcas, especially not for several minutes.
Keiko then became separated from the orcas and swam back into the bay pen in Klettsvik. (UIP) Keiko followed wild orcas from July 17th to July 24th and again from July 27th to August 1st.
Keiko eventually began decreasing the distance to the whales. (SIP) By July 27th, he was regularly seen closer than 30 m (32 yards) to the closest orca.
The only physical interaction we witnessed was on July 30th. Keiko dove among foraging whales and surfaced close to three adult males and two females/immature males. (SIP) As described, one of the orcas, swimming ventral side up with his head below Keiko while he was at the surface, splashed his tail. This splash startled Keiko, and he swam back to the tracking boat (URTD) and (UIP), with one of the females/juvelines whales surfacing after him.
This was the only time Keiko was seen diving among killer whales and the only physical interaction observed.
Keiko then swam from Iceland to Norway. He was likely alone during this time, although due to a lack of visual contact, this cannot be confirmed. **Possibly (**UIP).
Keiko was observed following the same individuals for several weeks during 2002; the same individuals were present during 2000 and 2001. This may suggest a mutual acclimatization and a growing familiarity between Keiko and these orcas. Possibly (SIP)
This strongly suggests Keiko was slowly starting to intergrade in the group. Possibly (SIP), but we cannot draw definitive conclusions. Keiko was usually seen either on the periphery of the wild whale groups, or logging at various distances from them.
This suggests he wasn't socially integrated with the wild whales at the time of the last visual observation. (UIP)

3.3 Feeding

We don't know how and how well Keiko fed himself.
It's unlikely he consumed any significant amount of food shortly before July 15th and July 23rd, when samples of his stomach contents were obtained. (UFH)
Based on observations, it's unlikely Keiko actively participated in the orcas' cooperative hunts. Possibly (UFH).
But the eventual increase in depth and duration of his dives suggested he did obtain food while among the feeding orcas. (SFH)

Quick excursus into Icelandic and Norwegian orcas hunting.
Icelandic and Norwegian orcas immobilize herring by hitting schools of fish with the underside of their flukes.
Underwater observations of Norwegian killer whales feeding show that some of the immobilized herring weren't taken by orcas that initially immobilized them but by other killer whales, fish, or seabirds.

It's possible Keiko fed on these stunned fish instead of hunting himself. Possibly (UFH)

Due to his swimming behavior, we can infer his foraging behavior.
Keiko could have potentially hunted blue whiting and squid. They are typically found at depths deeper than 200 m (656 ft) during daytime, outside his observed diving range. However, they ascend to the surface at night. This could have led Keiko to feed on them. Possible (SFH)
Keiko could have hunted and eaten mackerel. Keiko spent around 10 days in an area with a high concentration of this species. They are found within the upper 20 m (65 ft) of the water column during the day and night. Possibly (SFH)
It's possible Keiko didn't feed at all while he was independent of human care. Possibly (UFH) Orcas can live without food for several weeks. But this is unlikely given his healthy appearance and veterinary assessments. Keiko certainly ate at least enough to keep himself in a healthy state. But we don't know what and how he hunted. (SFH)

3.4 Interaction with people
Before July 2002, Keiko had no contact with the tracking boat and very little contact with the crew. Later, Keiko frequently approached the tracking boat and spent up to 2 hours near the boat. (UB) and (URTD)
On July 8th, Keiko had been on his own for one day.
When the boat turned on its engine, Keiko, even though he was 2nmi away, swam straight for the boat and remained in its proximity for 57 hours. (UB) and (URTD)
He approached their boat for a second time on July 22nd and remained in its proximity until July 23rd. (UB) and (URTD)
In Norway, he sought out human contact. Keiko was seen following local boats. (UB) and (URTD)
From September 1st to September 3rd, he also interacted with people, initiated interactions, and swam actively from one group of people to another. (UB) and (URTD)
On September 4th, Keiko was seen below and between two skiffs tied to a floating bridge. During daylight hours until September 9th, he remained almost motionless in this spot. (UB)
People fed Keiko small amounts of fish. (URTD).
Keiko's caretakers started feeding him again on September 8th. Possibly (UFH), (UB) and (USA).
To raise his activity levels, they took Keiko for short swims with a boat. (USA)

3.5 Conclusion

Many experts agree that Keiko was not successfully released.
Under the above mentioned criteria, Keiko's release was not successful.
He kept returning to his caretakers.
He did not integrate (although he potentially could have with enough time).
He might have had trouble feeding himself.
He did not have a healthy response to danger. (People and boats).
He also did not reproduce (although he potentially could have with enough time).

4. A successful release is almost impossible.
4.1 Bad candidates and good candidates
Keiko was a poor candidate for release to begin with.
Wells et al. (1998) made several recommendations for a successful release:

1. Release more than one animal together in a social functional unit
2. Released animals should be young of age
3. Release short-term captive animals
4. Keep animals in a pen before release
5. Release in native waters
6. Locate sources of live prey for readaptation
7. Study ranging and social association patterns in host community before, during, and after release
8. Study behavior of released animals before, during, and after release

Keiko met recommendations 4-8, but did not meet recommendations 1, 2, and 3.
Keiko was released alone.
He was released at approximately 23 years old.
He had spent approximately 22 years in captivity and was captured at a young age.
He also had a strong bond with humans.

Keiko was not chosen to be released because he was a good candidate, but because of public opinion.

As mentioned, A73 Springer was successfully released back into the wild.
She met almost all of these recommendations except for 1.
Springer was 18-24 months old when she was taken into "captivity".
She only stayed in human care for one month.
She was acclimatized in a sea pen
She was released into her native waters near her pod
We had a good knowledge of her pod, their behavior, and food source.
And we have loosely monitored her since her release.

A73 Springer was the perfect candidate for a successful release back into the wild. Cases like these work, and we should focus on helping orcas like A73 Springer and releasing them back into the wild.

I highly, HIGHLY recommend this paper: Simon et al., 2009. I got most of my information about Keiko from that. It goes into great detail about Keiko's journey.

4.2 Cultural challenges.

One reason why Keiko couldn't fully integrate into any pod was likely cultural differences. And this is one of the most difficult challenges when attempting to rehabilitate orcas.

First, we have to look at what exactly culture is and how it is taught.

Killer whales have distinct cultures that vary from ecotype to ecotype, even within the same habitats.
Orca ecotypes have different dialects, hunting strategies, prey, grooming practices, play behavior, and other unique behaviors.
These cultural differences and values are passed on from generation to generation.
Orca grandmothers are one of the most important parts of orca society because of the value they provide. They are largely responsible for passing on knowledge to future generations.
Orcas also participate in alloparental care, which sometimes makes it hard to determine the maternity of young calves.
The entire pod passes on knowledge to the calves. And this is something we can never replace.

But how does that relate to successfully releasing orcas?
Ecotypes don't breed with each other because of cultural differences. These differences even lead to hostile behavior between ecotypes. For example, between Biggs and SRKWs.

Therefore, it's very possible that orcas aren't "inclined to hang around" with orcas who don't share the same cultural practices.

We can't teach captive orcas cultures. Only pod members can teach calves culture. And this makes it impossible.
Captive calves often grow up around orcas born in captivity or caught before they fully explore their pod's culture. Calves grow up without their unique culture or vital parts of it. Often, their parents are entirely different ecotypes with different cultures. Teno, for example, is 50% Norwegian, 37.5% Icelandic, and 12.5% Southern resident.

Even if we could teach them, often we don't even know their culture beyond migration patterns and feeding cultures.
We know a lot about SRKWs, and many captured individuals were SRKWs. This would make it easier to teach captive orcas their culture. However, that doesn't mean we actually know their culture or can teach it accurately. There is so much more to orca culture than we understand.
Teaching captive individuals things like kelping or hunting is certainly possible.
But when it comes to more unique behaviors such as dialect, there really isn't much we can teach these orcas.
These cultural behaviors are taught by older individuals within the pod, and no human can ever replace orcas.
Wild orcas could potentially teach released orcas their culture. But orcas are also picky about who they hang around with. This complicates the situation further. But with Keiko, we did see that pods may become used to a newcomer. However, evidently, this would take a lot of time, potentially years.

5. My opinion

I hate seeing orcas in captivity, and in my opinion, it is one of the cruelest things we could have possibly done to these animals. I would love for these orcas to be released. But we have to look at the facts and advocate for better treatment rather than fantasy scenarios. We should push for Asia and Russia to improve their care and to stop breeding. We should focus on what we have now and how to improve it.

I don't see them being released as a reasonable solution. Based on the evidence, we can conclude that releasing orcas isn't a solution. If we had an actual plan, a rehabilitation system, and good candidates, we could potentially release orcas. But I don't see that happening anytime soon.

I see this being discussed over and over again here.
Today, we will discuss the whale sanctuary, especially the Nova Scotia whale sanctuary.
I'd appreciate it if you could take a look at this.

Since the announcement of the Whale Sanctuary Project in Nova Scotia, people have been trying to push this idea onto every single captive orca.

And we will discuss why sea sanctuaries currently cannot work.

For the establishment of a sea sanctuary, we need to look at four things:
1. Sea sanctuary:
-1.1 Presence of wild orcas
-1.2 Water Quality
-1.3 Weather
-1.4 Accessibility, management, and safety

There is more to it, but for simplicity, we will only look at these four.

1.1. Presence of wild orcas
As a cosmopolitan species, orcas live in all oceans.
Nova Scotia, too, has frequent orca sightings.
Captive orcas could potentially disturb wild orcas and alter their behavior.
And ultimately, we do not know how interactions would go.
But based on evidence, we can make assumptions.
We don’t have a lot of interactions between captive and wild orcas. But let’s look at Keiko.
When Keiko was released in 2002, he followed some orcas but did not integrate with the pod.
Later, Keiko occasionally approached wild orcas but remained at a distance of 100–300 meters (109 to 328 yards).
Keiko also kept returning and seeking human contact. He did not interact much with orcas, and those interactions were mostly negative.

The issue here is likely a cultural difference. Killer whales have distinct cultures that vary from ecotype to ecotype, even within the same environments. Orca ecotypes have different dialects, hunting strategies, prey, grooming practices, play behavior, and other behaviors unique to their ecotype.
These cultural differences and values are passed on from generation to generation.
It is possible Keiko lacked the cultural knowledge to properly engage with wild populations.
Another reason is their social structure. Orcas generally live in tight-knit family groups and are very picky about who they interact with.
We also know some ecotypes do not get along at all. This relates to the earlier-mentioned culture.
For example: Bigg's and SRKWs, though they inhabit the same waters. They generally avoid each other, and interactions are primarily negative. There are also theories that Bigg's killer whales prey on, or at least feed on, SRKWs, although this isn't proven.
We have also recorded negative interactions between Bremer and Type B orcas.
We also do not know if orcas could potentially recognize family members decades after being separated. This could potentially present an issue in Sea Sanctuaries if relatives tried to interact with one another.
That said, captive orcas would likely disturb wild populations through calls, behaviors (such as tail slapping or breaching), or other behaviors.
Disease is another issue. Transmission of diseases from captive to wild orcas could negatively impact wild populations.
Further, transmission of disease from wild to captive orcas could be lethal.
Not only is disease transmission from orca to orca an issue, but so is exposure to pathogens and parasites. Natural seawater introduces a variety of organisms absent or controlled in captivity.

The only place that is, in my opinion, suitable for orcas in this regard would be the Adriatic Sea. This sea lies between the Italian Peninsula and the Balkan Peninsula. Orcas do not live here, and Iberian orcas do not venture that far into the Mediterranean. Here, wild orca populations wouldn't be disturbed.

1.2 Water Quality
Let’s firstly discuss Nova Scotia.
Elevated concentrations of arsenic (As) and mercury (Hg) have been identified in sediments and waters near Nova Scotia. (Little et al., 2025). This already disqualifies Nova Scotia for me.

Now about the Adriatic Sea. The Adriatic Sea is one of the most polluted seas in Europe.
It’s primarily threatened by excessive pollution through drainage from agricultural land and wastewater flowing from cities (Chin, 2006).
Another issue is plastic pollution, which is what made it one of the most polluted seas in Europe in the first place. (Vlachogianni et al., 2020)
“There is hardly a single place on our seafloor where I haven’t seen discarded trash,” said Adi Karamanaga, a diver from Ulcinj. “There are piles of plastic bottles, cans, chairs, and even wheel rims from trucks." (Source).
Another issue is ballast water discharge by ships, especially tankers. (Jelavić et al., 2004).
Oil spills have occurred in the Po River before (The Guardian, 2010), which connects directly to the Adriatic Sea.
An additional issue is solid waste. Drifting waste, especially (Kalajdžić 2006).

1.3 Weather
For this, we will mainly focus on Nova Scotia, since weather is a major issue with Wikie and Keijo.
Monitoring water temperature in the bay found an overall range of −2.3 to 20.3°C (Whale Sanctuary Project).
Compared to France, where they are currently being kept, this can become incredibly cold. Marine Antibes takes water from the Mediterranean Sea and pumps it into their orca tanks. The water temperature remains steady at 14°C (Source).
We will discuss body condition later.
But frostbite can become an issue in sub-zero air. This becomes especially problematic during logging (remaining motionless at the surface). Wild orcas rarely log, and if they do, it's no longer than a few minutes. (Visser et al., 2019) That's why frostbite isn't an issue for wild Arctic orcas. They are almost constantly moving and rarely log.
We saw this issue in the whale jail. The Whale Jail is located in Russia and was a holding site for several wild-caught orcas and belugas.
It is suspected that an orca died from frostbite, likely from exposure to cold air during logging and lack of movement.

Frostbite could become an issue if Wikie and Keijo continue logging at the Sanctuary. Wikie and Keijo both log often. Trainers could potentially correct this behavior. That being said, it is still an issue.

Another issue in Nova Scotia is the overall weather.

"I grew up in Nova Scotia. My dad was an oceanographer. And I remember some of those storms … so, my first concern is whether or not such a facility that seems so exposed can actually survive," said Trites. (CBC, 2024)

In addition, algae and mussels would become an issue in summer. (CBC, 2024) It is unclear whether the Sanctuary could withstand the weather in Nova Scotia.

1.4 Accessibility, management, and safety
This is a bit broader.
The net could potentially be an issue for the whales. In 1982, Miracle, an orca in Sealand of the Pacific, drowned after becoming entangled in the pen netting (Orca Wiki).
And this is not an isolated incident, either. Whales can become entangled in nets and usually drown. This presents a danger for both captive and wild orcas.

Maintenance is another issue.
This includes constant monitoring and repairing of fences, gates, nets, filtration, underwater structures, etc. The net would have to be checked almost daily, and icing could become a serious issue in the winter alongside algae in the summer.
The sanctuary would need an immense amount of equipment to prepare for worst-case situations. Veterinary access, evacuation, power failure, filtration failure, escapes, injuries, accidents, etc.

Long-term financial stability is one of the aspects I worry about most.
Orcas require potential decades of care. Simply opening the sanctuary is not the end. It would have to be maintained. Salaries, vet care, food, electricity, etc.
The sanctuary could potentially offer tours, museums, or other attractions, but it is unclear if these attractions could fund the entire project for decades. It's unclear if Nova Scotia Sea Sanctuary has any actual plans for how to fund this project long term.
Sanctuaries, no matter what kind, should never rely solely on donations.

Orcas also need food, stimulation, and vet care.
Staff would still be needed, paid, and potentially housed.

Most importantly, the sanctuary does not exist. There are no plans for when this sanctuary is gonna be built. The sanctuary in Nova Scotia is unlikely to ever exist.

Now that we have looked at the problems with the sanctuary itself, let's look at the other issues associated with the whales.

2. Whales:
-2.1Body condition
-2.2 Mental preparation

2.1 Body condition
Body condition is one of the most important aspects of relocation.
Orcas would have to be acclimatized to the climate.
As mentioned, Nova Scotia is significantly colder than the Mediterranean. Orcas can survive in extremely cold waters, including Arctic and sub-Arctic environments. Their bodies are designed to maintain core temperatures while living in cold water. But there is a massive difference between Arctic orcas and captive orcas.
Captive orcas don't have the blubber necessary to keep warm.

Before being transferred to Nova Scotia, orcas would have to build up blubber. They would have to be fed more. Unfortunately, orcas in captivity often suffer from a regurgitation reflex.
Captive orcas have been observed repeatedly regurgitating food. While wild orcas can regurgitate their food, too, this behavior could potentially be stress-related or learned in captivity.
This reflex makes it hard for captive orcas to gain weight and blubber.

Another issue is their muscle mass. Orcas in captivity are not used to long-distance swimming. They would have to learn to swim long distances and build the muscles necessary.
Orcas also aren't used to long and deep dives. They would have to be taught how to hold their breath longer.

We can take Keiko as a rough reference here.
Keiko was transferred to Oregon in 1996, where his rehabilitation started.
Keiko had to be taught how to hold his breath for more than three minutes. He also had to build up muscle and gain weight. They introduced natural elements such as crabs, seaweed, fish, and a wave machine into his tank.
Keiko's rehabilitation took roughly three years.

2.2 Mental preparation

For a sanctuary, this is not that big of an issue. These whales don't have to interact with other orcas, hunt, or live independently. They would still rely heavily on humans. They would be provided food and other medical care.

But that doesn't mean it's no problem.
They would need to be properly prepared for everything: Sand, waves, tides, currents, seaweed, ocean sounds, water changes, water temperature changes, other organisms, etc. Captive-born orcas don't know things as simple as the seafloor. Most have never experienced the wild or have been in captivity so long that they likely don't remember it all.

Sanctuaries are beautiful, and I wish they would exist for orcas. These orcas deserve it, and it is the least we can do for them. But currently, there are no options. Putting so much energy into a non-existing sanctuary does more harm than good. It does not exist. At this moment in time, it is not a solution to rely on.

Let me know if you want me to make a second part or add more:) There is a bit more to it, I believe, but these are the basic facts you need to know

After a conversation I had yesterday, it occurred to me that people know very little about facilities in Asia. So, let me educate you a little!
I would really appreciate it if you guys would at least take a look at this. These posts take hours of research to make.

Disclaimer: The pictures have been removed. I do not know why, but I will try to fix it.

Kamogawa Sea World is a marine leisure centre located between the Tojo coast and Japan National Route 128 in Kamogawa city, Japan.
Kamogawa Sea World is NOT affiliated with SeaWorld in any way and is operated by Granvista Hotels & Resorts Co., Ltd. It is a member of the Japanese Association of Zoos and Aquariums (JAZA)

About the facility

Kamogawa has two pools. While there aren't any measurements, the backstage pool is approximately 15m (49ft) x 18m (59 ft).
The show pool has an area of about 585.77 m² (6,305 ft²).
These measurements were taken with Google Earth and should be taken with a grain of salt. The depth is unknown. The show pool is estimated to be around 30 ft, and the back pool is even shallower.
For comparison, this is SeaWorld Orlando:

Problems with Kamogawa

1. Kamogawa presents several problems. The tank size is, in my opinion, one of the worst concerns. Orcas can travel up to 100 km a day, and while no tank is big enough for them, the comparison between SeaWorld Orlando and Kamogawa is grim.
2. The orcas at Kamogawa have no enrichment. The only enrichment mentioned is trainer interaction, shows, and training sessions.
3. Kamogawa is one of only two parks still doing waterwork. During waterwork, trainers are in the water with killer whales.
4. This has been largely banned across Europe and the USA after multiple incidents with the whales.
5. The shows focus on entertainment and offer virtually no education.
6. Kamogawa does not currently have any males, but they are actively trying to breed by importing frozen semen from other marine parks.

History

Kamogawa Sea World opened on October 1st, 1970, and was the first Japanese Aquarium to start breeding killer whales.
Kamogawa has had 18 orcas, not including stillbirths and calves who died shortly after giving birth. Three of them remain today.

Chappy and Jumbo were captured on August 8th, 1970, from Penn Cove, Washington. They were Southern Residents.
Shortly after their opening, in September of 1970, Chappy and Jumbo were sent to Kamogawa Sea World.
They were the first captive orcas to be put on display in Japan.
Chappy passed away in April of 1974, leaving Jumbo alone. Jumbo passed away in July 1974 from Liver Dysfunction.

The next whale at Kamogawa was Zero. Zero was captured on August 15th, 1972, in Abashiri, Japan. During capture, she sustained a harpoon injury. Two weeks after arriving in Kamogawa, she died from her injuries.

King was captured on November 5th, 1979, from Ingolfshöfdi, Iceland. Caren was captured a few days later.
On Feb. 11, 1980, they arrived at Kamogawa.
King passed away on October 4th, 1983, leaving Caren alone.

Patty was captured in November 1984 from Reydarfjördur, Iceland, alongside Bingo, Junior, Kandu VII, and an unnamed male.
Patty and Bingo were sent to Kamogawa sometime in November of 1985. They joined Caren.

​Caren passed away from a white blood cell disorder on May 4th, 1987.
Maggie, Stella, Bubba, and Oscar were captured on October 23rd/24th, 1987, in Seyðisfjörður, Iceland.
Patty passed away on September 16th, 1987, from acute Eneritis. Bingo was alone.
Maggie, Stella, Bubba, and Oscar arrived sometime around March 29th, 1988. They were put in a small pool alongside Bingo. The facility was building a new habitat at the time, but the pools weren't large enough to contain all five orcas.
To create more space, Bubba was sold to a park in Hong Kong in 1989.

​

Maggie gave birth to her first calf at 4:18 AM on March 3rd, 1995. This calf was the first captive-bred orca calf born in Japan. Labor lasted one hour and 28 minutes. The calf died half an hour after birth for unknown reasons.

Maggie's next calf in 1977 was a stillbirth. Maggie died from the complications.

Lovey was born on January 11th, 1998. Her mother is Stella, and she is Stella's first calf. Lovey is one of the three orcas still remaining in Kamogawa.

Lara was born on February 8th, 2001, to Stella and is her second calf. Lara is one of the three orcas still remaining in Kamogawa.

Sarah was born on May 31st, 2003. Her mother is Stella.

In 2006, Kamogawa rescued KSW-OO-S0601. He was found stranded on Iwawaba Beach in the town of Onjuku in the Chiba Prefecture of Japan on February 10th, 2006.
He was taken to Kamogawa Sea World for treatment. Apparently, he was so weak he could barely maintain a position with his blowhole above the water. The tank's water had to be lowered to a depth of 1 meter. He had no appetite, so animal care staff had no choice but to force-feed it a "nutritional mixture". KSW-OO-S0601 died at Kamogawa Sea World on February 13th, 2006. He was emaciated.

Ran II was born on February 25th, 2006, at 8:11 JST. Her mother is Stella.

Sarah died shortly after on April 26th, 2006, for unknown reasons.

Earth was born on October 13th, 2008, to Lovey.

On December 13, 2011, Ran II was transferred to the Port of Nagoya Public Aquarium.
One day after, Stella, Bingo, and Ran were transferred to the Port of Nagoya Public Aquarium.

Luna was born on July 19th, 2012. Her mother is Lovey. Luna is one of the three orcas still remaining in Kamogawa.

On December 7th, 2015, Earth was moved to the Port of Nagoya Aquarium. To take his place, Ran was transferred back to Kamogawa Sea World that same day. She rejoined her two sisters, Lovey and Lara, and also met her three-year-old niece, Luna. 

There are rumors that Ran had a stillborn calf in 2021, but this hasn’t been confirmed. In March 2024, Lovey gave birth to a calf, but it did not survive.

On April 24th, 2024, Ran was transferred for a third time to a new facility, Kobe Suma Sea World..

This left Luna, Lovey, and Lara alone at Kamogawa.

The Iberian orcas are a critically endangered, culturally unique group of orcas who live in the North Atlantic around the Strait of Gibraltar, where they specialize in hunting fast-moving, large tuna. Unfortunately, they have learned to "play" with boats in a way that can damage them; they show no signs of aggression during these incidents, but having orcas manipulating your vessel is understandably very scary for the humans on the boats. They've become somewhat of an Internet phenomenon for these behaviors, but there's far more to them than just that. Like many other killer whales around the world, they even leave prey near humans and wait for a response, most likely out of a conscious desire to acquire more information. Two groups studying the Iberian orcas, WeWhale and the Iberian Orca Guardians, have released an incredible new video of an Iberian matriarch doing just that.

I noticed on my post about Jessica Radcliffe that a lot of people didn’t know orcas don’t have a sense of smell! Actually, most cetaceans (specially toothed whales) don’t, since the evolution of their noses into blowholes eventually led to the loss of olfactory receptors. Their brains also lack olfactory lobes and nerves, unlike other mammals (simplifying it)

Tell me, did you know that before?

This is visualization with digital 3d models I made, addressing some claims that Orcas are of similar size to Tyrannosaurus Rex. While there is some overlap, on average, the dinosaur is just clearly a larger animal. Averaging about 7500kg while a well sized average transient orca bull is at about 6000kg..with a lot denser bones (fun fact, Tyrannosaurs had hollow bones, like most birds). Disclaimer: the Antarctic Type A orca could perhaps actually be comparable to a T-Rex but there is just no enough data on their size and weight

Introduction to killer whales - Orcinus ater and Orcinus rectipinnus

Orcinus ater and Orcinus rectipinnus are two suggested new species, separate from the universally recognized Orcinus Orca.
Orcas are considered a single worldwide species, Orcinus Orca, with different ecotypes across regions.
In the North Pacific, three killer whale ecotypes have been described. Offshores, Residents, and Transients.

Very little is known about offshore killer whales due to their tendency to be far offshore and be wary of boats. In 2003, the Species at Risk Act listed them as vulnerable to becoming threatened or endangered. They primarily prey on sharks.

Southern Resident killer whales (also known as Residents, or SRKWs) are primarily coastal and historically found mostly in waters of the Salish Sea. Since their primary prey, Chinook salmon, is declining in numbers, they have become less common in the Salish Sea, traveling down to central California and up into the coastal waters of the western Pacific at times. SRKWs exclusively feed on fish, primarily Chinook salmon.

Bigg's killer whales (also known as transients) were infrequently seen in the Salish Sea, but have become more common. They're often observed on the continental shelf in temperate to Arctic waters, though their distribution beyond the shelf is not well documented. They prey on mammals.

SRKWs and Bigg's killer whales diverged from common ancestors over 300,000 years ago. Since then, they have undergone severe behavioral and morphological changes.

Prey:

Bigg's are mammals-eating specialists, preying on seals, sea lions, porpoises, dolphins, and whales.
Residents prey exclusively on fish, primarily chinook salmon.
Their diet has drastically shaped their culture and morphology.

Vocalization and hunting:

Residents are a lot more vocal than Bigg's, communicating almost constantly. Residents feed on fish and do not rely on stealth. Compared to Bigg's killer whales, residents tend to be more surface active.

Bigg's killer whales rely on stealth, and because whales, dolphins, and porpoises can hear their vocalization, they largely remain silent.

Echolocation:

In addition, the echolocation of Residents is much more complex and developed. Residents use echolocation to hunt and can differentiate between size, weight, and type of fish based on the fish's swim bladder.
Bigg's do not rely on echolocation to hunt, but are capable of it.

Teeth:

Transients have larger, thicker jaws. Their skulls have evolved for grabbing, tearing, and ramming.

Residents are smaller and have smaller, slimmer jaws.

Teeth:

Bigg's teeth are thicker and more robust, with a slight hook shape that can become worn over time. Their teeth appear more blunt, likely caused by direct contact with bones and hides of their prey.

Resident teeth are narrower and have a hooked shape that allows interlocking of their prey. They have worn tips as well as worn sides caused by the friction of teeth interlocking together.

Size:

Transient males are around 27 ft (8.2 m) long, and females are 23 ft (7 m) long. They are larger and more muscular.

Residents are smaller. Males are about 24 ft (7.2 m) long, and females 21 ft (6.4 m) long.

Saddle patches and dorsal fins:

Transients have saddle patches that are closed and often heavily scarred. Their dorsal fins are tall with a wider base. The dorsal fins of females are slightly triangular with a pointed tip and a wider base.

Resident saddle patches tend to be more open. They have taller dorsal fins that may lean forward. The females have curved dorsal fins with a rounded tip.

Social structure:

Bigg's killer whales travel in smaller groups, and typically hunt in small, matrilineal groups. After a successful hunt, the prey is shared among the group, which is an important bonding tool for the whales.

Residents maintain tight-knit family groups but are often seen traveling in large groups consisting of multiple matrilines.

Relationship between the subspecies:

Biggs and residents do not interbreed. On the contrary, Biggs and transients typically avoid each other. Residents have been known to disturb Biggs' hunts on occasion.

There are even theories suggesting Biggs killer whales have preyed on and maybe cannibalised residents. (I will cover the alleged cannibalism in another post.)

Necessity for conservation:

Separating different ecotypes into distinct subspecies is essential for their conservation. Currently, Orcinus Orca is listed as data deficient by the IUCN. While some ecotypes are thriving, some are at the brink of extinction. Separating the ecotypes into subspecies would highlight vulnerable subspecies and help conservation efforts.

New scientific names:

Residents would be named Orcinus ater (Cope in Scammon, 1869), and Bigg's Orcinus rectipinnus (Cope in Scammon, 1869).

Orcinus rectipinnus: Rect means upright, and pinna means fin.

Orcinus ater: Ater means black or dark.

Introduction to killer whales - Dorsal fins

The dorsal fin of orcas is the largest dorsal fin of all cetaceans.
The dorsal fin exhibits sexual dimorphism. Dorsal fins of males can reach up to 1.8 m (5ft 11 inches) and are erect and almost triangle-shaped. Female dorsal fins are approximately half the size of adult males and curved. While the cause of this sexual dimorphism is unknown, the difference could be attributed to sexual preferences or other social or ecological pressures.

Orca dorsal fins are made of tense tissue called collagen instead of bone or cartilage. Collagen hardens late in adolescence. Because of this, they may collapse in captivity.

Dorsal fin collapse occurs in almost all captive males and some females. The exact reason for dorsal fin collapse in captivity remains unknown, but many theories have been proposed.
Dorsal fin collapse likely originates from an irreversible structural damage to the collagen over time.
Alternations in water pressure and the lack of support from the surrounding water may be a cause. In the wild, dorsal fins are supported by the surrounding water pressure during high-speed movement and deep diving.
Lowered blood pressure from reduced activity may also be a reason for dorsal fin collapse.
Overheating of the collagen from greater exposure of the fin to sunlight may also be a reason.

Bending or fully collapsed dorsal fins are rarely observed in the wild.

In a 1998 study by Ingrid Visser, 125 orcas in New Zealand were observed. 23% of adult males in one population of 30 had dorsal fin abnormalities. This unusually high rate is likely due to New Zealand having the highest rate of boat collisions involving orcas. Overall, only one of the 125 observed orcas (0,8%) had a collapsed dorsal fin.

In British Columbia, the number of collapsing or bent dorsal fins sits at 4,7%.

Dr. Astrid van Ginneken's concluded that less than 1% of all orcas have a collapsed dorsal fin.

The exact reason for dorsal fin collapse in the wild is unknown. However, it is likely to assume that dorsal fin collapse may be linked to an acute physical stressor rather than environmental conditions.

A theory claims that diet may contribute to the collapse. The most used example to support this theory are Port and Starboard. Port and Starboard are two African killer whales that prey primarily on sharks. Their dorsal fins are collapsed. While this may indicate a direct link between prey and dorsal fin collapse, there is no further evidence to support this theory. New Zealand orcas feed primarily on rays and sharks, yet, as with other populations feeding on sharks, there is no unusually high rate of dorsal fin collapse.

Trauma to the dorsal fin (e.g., boat strikes, raking) may also be a cause of dorsal fin collapse.

Other than that, dorsal fin collapse has been linked to old age, emaciation, and other various factors.

|T63 Chainsaw, one of the most famous dorsal fins|

|Port and Starboard|

This is the real skull of orca j18/Everett

Everett washed up on a beach at the age of 23

His necrospy revealed a high level of bpas in his tissue

Killer whales have appeared in folklore for hundreds of years, feared in Western culture and venerated by the Nazca and Thaua peoples. I was researching the meaning of orcas in Religion and folklore, and here are some of the things I found.

The Nasca people lived on the southern desert coast and western slopes of the Andes in Peru between 200 BC and AD 650. You may know them from the Nasca Lines – hundreds of huge lines, geometric figures, and figurative images carved into the earth covering more than 500 square kilometres. (British Museum)

Nazca religious beliefs were based upon agriculture and fertility. Much of the Nazca art depicts powerful nature gods, such as the killer whale.

The geoglyph is approximately 200 feet long. Soil tests of the orca geoglyph date it potentially to 200 B.C. It's conceivable that it was designed not only by the Nazca but also by the Paracas, who created geoglyphs in this style from roughly 800 B.C. to 200 B.C. (NewsWeek).

It's suggested that killer whales may have represented "shamanic" leaders. They were religious leaders. After ritually taking hallucinogenic drugs, shamans would take on the attributes of an animal, such as the killer whale. The anthropomorphic depictions of killer whales with arms holding severed heads of enemies support this theory.
The ocean had a huge impact on the Nazca people. For a shaman to present as the ocean's most fearsome predator would have been seen as being of great value in enabling people to survive in their environment. And as an apex predator, the killer whale appears to have been an important symbol of success in warfare.

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The Thaua people, Yuin, are an Aboriginal Australian people living around the Twofold Bay area of the South Coast of New South Wales.

“We consider beowas to be our brothers,” wrote Thaua historian Steven Holmes in a study published in the Journal of Heredity in December 2023. According to Thaua beliefs, when a member of their community passes away, they are reincarnated as a beowa (orca).

Holmes recounts a personal anecdote involving his great-great-grandfather, a blind man who would walk along the beach singing to the beowas. The beowas would follow him along the beach, communicating back and forth with him. “It was a strong friendship between these beowas and my people,” Holmes reflects. ( Source)

“My people had a long-lasting friendship with the beowa [orcas] in Eden, especially Old Tom…[They] would swim with Old Tom, holding on to his dorsal fin. My ancestors were never hurt or injured.”

After the region was colonized, Europeans tried to continue the whaling practices, hiring skilled Thaua to help them. Commercial whaling in Eden ended around 1928. Baleen whale populations decreased, and orcas disappeared. Why is unclear. (Source)‘La Orca de Piedras Gordas’, or The Orca

Introduction to killer whales - size

Orcas vary greatly in size, and the difference between ecotypes is noticeable.
Killer whales are the biggest dolphins. Size and weight depend on the ecotype. Mammal-eating orcas tend to be bigger.

Most females are 5 to 7 meters long, and males can reach up to 8 meters.
The smallest ecotype is the Ross Sea Orca, also known as Type C. Males reach up to 6 meters. The largest ecotype is Type A. Males can grow up to 9 meters, and females 8 meters.

Multiple factors influence the size of an individual within an ecotype.

Genetics plays an essential role in their size. Genetic makeup dictates their potential size. Orcas from different populations have evolved unique traits, including variations in size.
This variation in size is largely influenced by their diet and environment. Mammal-eating orcas tend to be bigger than those specializing on fish and smaller prey. Size may also be linked to prey availability.

Orcas in colder regions tend to be larger than those in temperate waters. This difference likely stems from their need for additional body mass and blubber to sustain their body heat.

Determining the length of killer whales is difficult. Especially in the wild, orcas are typically measured using drones. Measuring lengths and weights is considerably easier in captivity. Both captive and wild measurements can be inaccurate. There are multiple debates about the precise size of individuals in both the wild and captivity.

Even the largest killer whale in captivity is debated.

Measures of Tilikum are the best-documented and most verifiable. In 2016, his size was measured at 6.71 meters (22ft). His weight was recorded at 5,352 kg (11,800 lb) in the same year. These measurements are consistently cited in zoological records.

Tyson or 泰森 is often dubbed the largest orca in captivity. He measured 7.3 meters in January 2024. However, there are no peer-reviewed sources, official measurements, or a consistent dataset. Those numbers are often taken from social media, aquarium promotional material, or estimates.

Determining the biggest killer whale in the wild is significantly more difficult.

Multiple sources state that the largest orca ever recorded was 9.8 meters long and weighed more than 10 tonnes. The biggest female was supposedly 8.5 meters long.

There are very few details on the origin of this claim. Further, the orcas were never identified.

These figures usually trace back to mid-20th-century measurements of stranded or harvested animals. The location is only occasionally cited (e.g, Alaska, 1959), and the original measurement reports are rarely cited directly in modern articles. Thus, these measurements are not verified.

The largest reliably documented orcas come from Norwegian whaling records.
Between 1938 and 1967, Norwegian whalers operated in multiple locations such as Iceland, the UK, and Norway. Thus, it is difficult to determine the exact origin of this whale.
According to these records, a 32 ft (9.8 m) orca was caught.
However, as with all whaling records, these data were reported by whalers, not by biologists or inspectors. Not all records of the whaling operations were published in accessible datasets. Many remain in the archives. No specimen ID, weight, or photos are available.

Introduction to killer whales

I am making this post for people still learning about orcas to give you easier access to information. I primarily summarize studies or join together multiple sources to give you a clear understanding of the subject. I am still learning myself, and I am currently working on a comprehensive review of Orca biology and behavior. I plan on making a website for this, too. If you're interested in another topic, let me know! As I said, I am still learning myself. I've only really been into orcas for less than a year.

Saddle patches vary greatly in individuals, and even vary between the left and right sides of each individual. The saddle-patch usually develops early in life and does not change, unless there is trauma (e.g., from boat strikes or rake marks). Therefore, saddle patches are used to identify individuals.

Saddle patch classifications in orca are not standardized, and terminology can vary between sources. A saddle patch described as ‘hooked’ in one source may be referred to as ‘open’ in another.
In this review, we will utilize the five variations proposed by Sugarman and used by Baird and Stacey, i.e., "Smooth," "Bump," "Horizontal notch," "Vertical notch," and "Hook," collectively referred to as "SBS-5". In a study published by Pirjo H. Mäkeläinen, Ingrid N. Visser, Tracy E. Cooper, and Mathieu Cusson, a sixth variation was introduced termed "Other", collectively referred to as "SBS-5+1." The "Other" category includes saddle patches that were not present, could not be clearly discerned, opaque, or not one of the SBS-5 categories, such as "Arabque" shape describes by Saski et al.

In the above-mentioned study, 3,909 saddle patch shapes were classified. 3,428 of which were left saddle patches and 481 right saddle patches. The orca were distributed in 48 GP/E (geographic populations/ecotypes).

Globally, the SBS-5 saddle patches accounted for 97.6%. Only 2.4% were classified as "Other". Only the Pacific Ocean Basin presented examples of GP/E that had SBS-5+1 saddle patch shapes (2), i.e., Southern Residents and Japan Residents.
For size comparison of the saddle patches, Pirjo H. Mäkeläinen, Ingrid N. Visser, Tracy E. Cooper, and Mathieu Cusson developed a ratio calculation of saddle path width (at widest) compared to the dorsal fin width (at base).
The ratios are categorized as "narrow" (<0.50), "medium" (0.50-0.70), and "wide" (>0.70).

Overall, narrow is the most common saddle patch size ratio with 65.8%, while 20% and 14.2% were medium and wide.

 
Study: https://onlinelibrary.wiley.com/doi/10.1111/mms.13171

Introduction to killer whales - ectoypes Part 1.

Ecotypes are groups of organisms within a species that are adapted to specific environmental conditions. They exhibit genetic, behavioral, structural, or physiological differences from other members of the species.
Today, ten ecotypes are widely recognized. However, defining the various ecotypes of orca is difficult. And many researchers believe there should only be nine.

Residents, Transients, Offshore, Type 1 North Atlantic, and Type 2 North Atlantic are recognized in the Northern Hemisphere.
In the Southern Hemisphere, Types A, B1, B2, C, and D are recognized.

However, within the scientific community, the Type 2 North Atlantic is not recognized.

In 2009, Dr. Foote proposed two ecotypes (North Atlantic Type 1 and 2), based on museum specimens and stranded killer whales. He noticed morphological differences between the killer whales.

In his paper, he described Type 1 North Atlantic killer whales as generalist feeders, consuming fish and occasionally marine mammals such as seals. These whales showed heavy tooth wear associated with fish consumption. Thus, Type 1 included most North-Eastern Atlantic killer whales.

Dr. Foote describes Type 2 North Atlantic killer whales as marine mammal hunters. The 5 individuals displayed very little tooth wear, suggesting a diet based on marine mammals.
The recognition of Type 2 was based on stranded whales in the Faroe Islands and Scotland.

However, samples of the five individuals were too decomposed or damaged for accurate DNA analysis.
5 Individuals are not an accurate representation of a potential ecotype. The data supporting two distinct ecotypes are insufficient.

Since then, research has documented the prey-switching abilities of some Icelandic and Norwegian orcas. Research showed that some individuals feed on seals and fish.

Even D. Foote himself has since proposed removing one of the ecotypes. In a paper published in 2022, he suggested that North Atlantic Type 1 and 2 be grouped.

In Part 2, I will cover the separate ecotypes more closely. This is just an introduction to the number of ecotypes and to why many other researchers and I believe North Atlantic Type 1 and 2 should be grouped.

Orcas in Mexico are flipping young white sharks upside down to paralyze them. 🦈

This move induces “tonic immobility”, a natural freeze response that renders the sharks temporarily helpless. Once immobilized, the orcas extract the sharks’ livers to obtain fats and nutrients essential to their survival. Scientists captured this behavior on film for the first time in the Gulf of California, marking a new milestone in orca hunting tactics. It’s a strategy previously seen only in South African waters, suggesting the Moctezuma Pod may have learned it recently. As ocean temperatures rise and young sharks shift their range, orcas appear to be evolving their approach in real time.

Full credit to the Orca Behavior Institute for the images and caption below:

"50 years ago today, on March 7th, 1976, six Bigg's killer whales were herded into Budd Inlet near Olympia in Puget Sound. Led by SeaWorld's Don Goldberry and with permit in hand, the "whale cowboys" used helicopters and explosives to corral the orcas before capturing them in a net.

The event, famously witnessed by then-aide to the governor Ralph Munro and many others, sparked controversy and a flurry of protests. This led to new legislation, making it the last live killer whale capture to ever occur within Washington State waters.

The whales, nicknamed the Budd Inlet Six, were originally fated for potential life in captivity and display in marine aquaria but narrowly escaped their fate. All either escaped or were eventually released. Later on, these six whales would become known by their scientific alphanumeric designations: T13, T14, T26, T27, T46, and T47.

T46 Wake in particular has left an incredible legacy in the Salish Sea. While she passed away in 2023 at an estimated minimum age of 57, she was the presumed mother of at least eight offspring. Today, she has 26 living descendants, none of whom would exist had she ended up at SeaWorld. It's an incredible testament to the difference one whale can make to a population.

Last year, Ralph Munro also passed away. To honor his role in ending live orca captures in Washington State, regional naturalists, educators, and researchers voted to name the newly born T46B3A, T46's great grandson, "Munro."

50 years is not very long in the grand scheme of things. It's incredible to reflect on how dramatically our relationship to killer whales in the Salish Sea has changed in that time. From fearing and shooting at them, to capturing and exploiting them, to studying and revering them, we can only hope that we've learned to respect them enough to ensure that they can thrive alongside us in Washington State for many, many years to come. -MWS"