Sei whale 

Whales are at the top of the food chain and have an important role in the overall health of the marine environment

They are also highly vulnerable to human activities in the ocean. The sei whale became a major target for commercial whaling after the preferred stocks of blue and fin whales had been depleted. Today, although commercial whaling has been officially halted, the species is subject to "scientific whaling" by Japan—that is, killing whales for scientific research.

 

 While the sei whale has been hunted by humans since the 1860s, it wasn't until the 1950s and 1960s and the declining availability of blue and fin whales that the killings seriously expanded.

Since 1985, the International Whaling Commission (IWC) has officially halted all commercial whaling of this species. Today, 50 sei whales are killed annually by Japanese whalers in the North Pacific in Japan's "scientific whaling" program.

They are threatened by climate change and can also be harmed by pollution, shipping strikes and entanglement in fishing gear

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