
Marine animals in captivity struggle to thrive due to the challenges of replicating their natural environments. This can lead to stress, illness, and even death.
In aquariums, for example, some species of fish are known to experience stress due to the presence of other fish, which can trigger aggressive behavior. This can be a major issue in overcrowded tanks.
One notable case is the experience of the beluga whale, Luna, who was kept in a tank in a shopping mall and suffered from stress and swimming in circles. Her story highlights the difficulties of keeping marine animals in captivity.
In fact, many marine animals in captivity have shorter lifespans than their wild counterparts, with some species living up to 20 years less in captivity.
Cruelty and Welfare Concerns
Captivity is often associated with cruelty, and marine mammals are no exception. They suffer immensely from capture, transport, and a lifelong existence in small, barren tanks.
Marine mammals like dolphins are wide-ranging predators that can't thrive in captivity. Even when they're provided with the best possible care, their surroundings are often bare and sterile.
Naomi Rose, a senior scientist, questioned whether longevity is a good metric for animal welfare. Just because marine mammals live a long time in captivity doesn't mean their welfare is good.
Many captive dolphins are treated with ulcer medication or antidepressant medication to alleviate the frustration of captivity. This is a stark contrast to their natural lives in the ocean.
Life is No Life
Captivity is often touted as a way to protect and care for marine mammals, but the reality is starkly different. Marine mammals in captivity suffer immense cruelty, from capture to transport to a lifelong existence in small barren tanks.
Dolphins, in particular, are forced to entertain tourists in concrete boxes or small sea pens, far removed from their natural ocean habitats. This is not a life, but a prison sentence.
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Keeping marine mammals captive causes immense suffering, and even the best zoological institutions can't provide the same level of care and stimulation as the wild. In fact, a study found that polar bears live longer in captivity than in the wild, but even this longevity is not a guarantee of good animal welfare.
Naomi Rose, a senior scientist, questioned whether longevity is a good metric for animal welfare, saying that just because they live a long time in captivity doesn't mean their welfare is good.
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Physical Detriments
Captive dolphins experience a range of conditions not commonly seen in their wild counterparts due to the lack of depth or size of the tanks they're kept in.
The physical detriments of captivity can be severe, as dolphins are adapted to living in the open ocean where they can swim long distances and dive to great depths.
Because tanks lack the depth or size of the open ocean, captive dolphins experience a range of conditions not commonly seen in their wild counterparts.
This can lead to physical health problems, such as muscle wasting and poor circulation, as dolphins are not able to engage in their natural behaviors.
Self-Destructive Behavior
Dolphins and orcas in captivity often exhibit self-destructive behavior due to prolonged confinement in small quarters. This can lead to depression and self-harming behaviors.
Numerous documented examples of such behavior have been observed, including repeated smashing of heads against tank walls. You can read more about Hugo and Morgan’s documented behaviors in captivity.
Smashing heads against tank walls is a desperate attempt to escape the confines of their tanks. This behavior is a stark reminder of the welfare concerns surrounding keeping these intelligent creatures in captivity.
Gnawing on walls and gates is another form of self-destructive behavior observed in dolphins and orcas. This behavior is often a result of frustration and boredom caused by the lack of stimulation and space in their tanks.
The repeated smashing and gnawing on tank walls and gates can cause serious injuries and long-term damage to the animals. This is a clear indication of the need for improved welfare conditions for dolphins and orcas in captivity.
Industry and Regulations

The industry that supports marine animals in captivity is highly regulated to ensure the well-being of these animals.
In the United States, the Marine Mammal Protection Act regulates the taking and importing of marine mammals.
Aquariums and marine parks must obtain permits from the National Oceanic and Atmospheric Administration (NOAA) to keep marine animals in captivity.
These permits require aquariums to meet specific standards for animal care and welfare.
Industry Collaboration
Industry Collaboration is crucial in addressing the issue of captive marine mammals. We will be speaking to travel companies at ITB Berlin about the suffering endured by captive marine mammals.
The industry has a significant role to play in becoming a part of the solution to this global problem. A life in captivity is simply no life at all, as we've seen in the lives of these marine mammals.
Travel companies can take steps to promote responsible tourism and support the transition to dolphin-friendly and whale-friendly destinations. This will help reduce the demand for captive marine mammals in entertainment.
Legislation and Bans
In Canada, a permanent ban on dolphin and whale captivity has been in place, with only one facility, Marineland in Niagara Falls, holding beluga whales and dolphins prior to the law.
The UK, Switzerland, France, Croatia, and Barcelona all have strict regulations or bans on marine mammal captivity.
India has banned cetacean captivity, while South Korea banned captures of whales for captivity last December.
Other countries with some variation of whale or dolphin captivity ban are Bolivia, Chile, Costa Rica, Cyprus, Greece, Hungary, Nicaragua, Slovenia, Brazil, Luxembourg, and Norway.
Russia passed legislation banning captures of wild cetaceans in Russian waters for captivity, shutting off the lucrative trade of live orcas and beluga whales from Russian waters to other countries, notably China.
The Moscow Aquarium announced it would no longer keep orcas in captivity after the death of two captive orcas last year, as it was too difficult to keep them alive.

The US state law that bans marine mammal captivity was first passed in 1982 by Mark Berman, who helped IMMP in their efforts.
However, South Carolina weakened that law in 2001 to apply only to cetaceans.
In 2015, the California Coastal Commission approved a permit for SeaWorld San Diego to expand its orca tank, but proposed a condition that breeding, importing, and trading captive orcas stop.
SeaWorld later adopted the policy of no breeding or importing new captive orcas for all three SeaWorld parks in the US.
The state of California passed the Orca Welfare and Safety Act in 2016, banning orca captivity, imports of orcas, breeding of orcas in captivity, and their use in entertainment.
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Swims Pass Congress
The SWIMS Act has made significant progress in Congress. It's a proposed federal legislation aimed to address welfare issues in marine settings.
The SWIMS Act has been influenced by California's Orca Welfare and Safety Act. This legislation has been used as a model to phase out captivity for small whales through stricter regulations.

If passed in 2024, the SWIMS Act will end breeding and captivity of four whale species for public display. These species include orcas, beluga whales, pilot whales, and false killer whales.
The SWIMS Act will also amend the Marine Mammal Protection Act. This amendment will prohibit live captures and exportation of marine mammals.
Aquariums in the US
In the United States, there are several aquariums and facilities that hold orcas and belugas in captivity.
Currently, all captive orcas in the US are held at the three SeaWorld parks in San Diego, San Antonio, and Orlando, with a total of 18 orcas between these parks.
The Georgia Aquarium, Mystic Aquarium, SeaWorld (San Diego, Orlando, and San Antonio), and John G. Shedd Aquarium hold captive belugas in the US.
SeaWorld's pledge to phase out its orca breeding program is a positive step, but it doesn't prevent them from housing, breeding, importing, or exporting other small whales.
SeaWorld's Orlando and San Antonio facilities are exempt from phasing out orca breeding, and the company can still import or export other small whales.
Without federal legislation, a new marine park with orcas and other cetaceans could establish itself in the US.
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Other Highlights
Many marine mammals, including cetaceans, are still being captured from the wild, with bottlenose dolphins six times more likely to die immediately after capture and transfer between facilities.
The inadequate conditions of captive marine mammals have adverse impacts on their welfare, leading to stress, health problems, neurotic behaviors, and abnormal levels of aggression.
Captive marine mammals are provided with less than 0.0001% of their natural habitat range, with some facilities offering as little as 70% of an orca's time spent virtually motionless.
Several facilities, including dolphin sea pen enclosures in Asia and the Caribbean, are at extreme risk from natural disasters like hurricanes and tsunamis, and their construction degrades coastal habitat, destroying mangroves and damaging coral reefs.
Concern about swimmer safety and dolphin welfare has led several tourism companies to end or restrict their promotion of swim-with dolphin attractions.
Conservation and Sanctuaries
Seaside sanctuaries offer a humane alternative to retire captive marine mammals, providing a larger and more natural environment for their remaining years.
Relocating captive cetaceans to seaside sanctuaries can extend and improve their lives, giving them a chance to thrive in a more suitable environment.
Once a seaside sanctuary for small whales is established, there's no excuse for keeping captive orcas and belugas in small tanks.
Call for Seaside Sanctuaries
Seaside sanctuaries offer a humane alternative to retire captive marine mammals, providing a larger and more natural environment for their remaining years.
These sanctuaries can also function as vital rehabilitation centers for stranded and injured wild cetaceans.
Relocating captive cetaceans to seaside sanctuaries affords these marine mammals the chance for extended and healthier lives.
The science is clear: captivity in small tanks is not healthy for whales and dolphins, making seaside sanctuaries a crucial step towards a better future.
By establishing seaside sanctuaries, we can create a safe and nurturing environment for cetaceans, allowing them to thrive in their natural habitat.
Once a seaside sanctuary for small whales is established in the US, there's no excuse for SeaWorld to not retire its captive orcas and belugas there.
Dolphins Belong in the Wild
Dolphins can travel up to 100 kilometers a day in the open ocean, showcasing their incredible adaptability and freedom in their natural habitat.
Their family bonds are incredibly strong, with members teaching each other skills to survive in the wild and often remaining together for life.
Dolphins have signature whistles, much like human names, which facilitate their social communication and interaction among the pod.
In the ocean, dolphins have evolved perfectly to thrive, and captivity simply cannot provide an adequate environment for these wild species.
Revealing the Truth
Wild cetaceans travel an astonishing 40-100 miles a day, achieving speeds of 30 miles per hour and diving hundreds of feet deep. This is in stark contrast to their captive counterparts, who have less than 0.0001% (one millionth) of their natural habitat range.
In fact, a 2014 study found that a captive male orca spent nearly 70% of his time virtually motionless. This lack of stimulation can lead to a range of health problems, including extreme stress, neurotic behaviors, and abnormal levels of aggression.
Captive marine mammals suffer from a huge range of health problems, and bottlenose dolphins are six times more likely to die immediately after capture from the wild and transfer between facilities.
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Annual mortality rates for captive orcas have improved over the years, but they still don't match healthy populations in the wild.
Here are some staggering statistics on the number of ocean theme parks in China: from 39 in 2015 to 76 in early 2019. This rapid expansion raises concerns about the welfare of the marine animals being kept in these facilities.
Dolphin sea pen enclosures in Asia and the Caribbean are at extreme risk from hurricanes and tsunamis, causing damage to the environment, including coral reefs and mangroves.
Frequently Asked Questions
What marine animals are kept in captivity?
Dolphins, whales, and other marine mammals are commonly kept in captivity, including orcas, belugas, and various other species
How many sea animals are in captivity?
Approximately 3,700 whales and dolphins are held captive globally, highlighting the need for change in marine park practices.
Do marine animals live longer in captivity?
Yes, marine animals in zoos and aquariums typically live 2-3 times longer than those in the wild, thanks to improved animal care and management practices. This significant increase in lifespan is a testament to the advancements in zoo and aquarium care.
What is the biggest sea creature in captivity?
Orcas, also known as killer whales, are the largest sea creatures held in captivity. They are members of the dolphin family and can be found in aquariums and marine parks worldwide.
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