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It is impossible for cetacean abundance estimates to be completely precise and IWC estimates are presented as a ‘best estimate’ figure, accompanied by a 95% Confidence Interval, showing a range of plausible values for the population's actual abundance.
- Status of whales
Around 200 gray whales regularly feed off Sakhalin Island,...
- Status of whales
26 Οκτ 2023 · Currently, an estimated 15,000 are left in the world. About 2,000 blue whales swim near the Pacific coast, spanning from Alaskan to Central American waters. Their populations, however, are threatened by ship strikes. When blue whales come up for oxygen, they collide with massive watercraft carrying shipping containers.
Shown are estimates of global whale populations in pre-whaling periods versus the year 2001.
Around 200 gray whales regularly feed off Sakhalin Island, Russia; although population numbers have slowly increased by 4% since the 1990s 68, 69, the low numbers of individual whales observed in 2022-2023 raise concern 70. Primary threats are entanglement and activities related to oil and gas.
Cetacea is an infraorder that comprises the 94 species of whales, dolphins, and porpoises. It is divided into toothed whales (Odontoceti) and baleen whales (Mysticeti), which diverged from each other in the Eocene some 50 million years ago (mya).
At the top of the food chain, whales are vital to the health of the marine environment but 7 out of the 13 great whale species are endangered or vulnerable. Learn how WWF helps whales.
Whales range in size from the 2.6 metres (8.5 ft) and 135 kilograms (298 lb) dwarf sperm whale to the 29.9 metres (98 ft) and 190 tonnes (210 short tons) blue whale, which is the largest known animal that has ever lived. The sperm whale is the largest toothed predator on Earth.
