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In 1911, the Fur Seal Treaty was created between Japan, Britain, America, and Russia to end the killing of seals on the high seas. In 1940, Japan withdrew from the treaty which caused it to expire.
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The US and Canada decided to regulate sea otter harvesting from 1941 to 1957 after the Fur Seal Treaty ended
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Margaret Owings, an environmentalist, created this organization for sea otter protection under state and federal laws. This organization can be donated to today and explains ways to help save sea otters such as using environmentally friendly goods, recycling, using public transportation, and using paper rather than plastic.
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All sea otters were said to be "depleted" under this act, meaning they were below a sustainable population. After this was passed, they began to grow in population again.
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This act made in 1973 helped sea otters by prohibiting any actions that would cause harm to any endangered species or their habitats.
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An oil spill leaked 42 million liters of oil in Prince William Sound, Alaska, and greatly affected marine life. Around 3,500 to 5,500 out of Alaska's 30,000 otters died due to the spill. This destroyed their habitat too.
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The Center asked the US Fish and Wildlife Service to record Alaska's sea otter population as endangered according to the Endangered Species Act.
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In 2003, the Southern Sea Otter Recovery and Research Act was formed to protect sea otters for monitoring, health assessments, and reduction from any harmful factors.
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A pipeline in California leaked into the Santa Barbara Coast and spilled 105,000 gallons of oil into the ocean. This killed lots of ocean wildlife, including sea otters, and ruined their habitats.
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The sea otter population will be able to flourish in San Fransisco due to repopulating the biggest estuary location on the Bay.