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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.
Countries that are party to the Nagoya Protocol. Countries that have legislative measures reported to the Access and Benefit-Sharing Clearing-House. Countries with more than 25 species at risk of losing more than 25% of their habitat by 2050. Cumulative first records of alien species.
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.
The IWC assesses cetacean status by population rather than by species. This is because the majority of species exist in several different areas and groups. Within a single species there may be one population that is feared to be close to extinction and one that is believed to be thriving.
14 Νοε 2022 · There are about 850,000 sperm whales now, down from about two million before the start of whaling in 1712, so a decline of approximately 57% in 310 years caused by substantial open-boat whaling...
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.
30 Νοε 2022 · Intense whaling drove many of the world’s whale species close to extinction. But a dramatic decline in whale hunting since then has given them hopes of recovery.
