Catch statistics sperm whale

For other uses, see Cachalot disambiguation. Management Overview The sperm whale has been listed as endangered under the Endangered Species Act since The Journal of Comparative Neurology. Google Scholar 6. Physeter Sperm whale P. Mounting evidence from scientific research has documented that ocean noise also causes marine mammals to change the frequency or amplitude of calls, decrease foraging behavior, become displaced from preferred habitat, or increase the level of stress hormones in their bodies.

The sperm whale, unlike other odontocetes, has only one pair of phonic lips, whereas all other toothed whales have two, [] and it is located at the front of the nose instead of behind the melon. Fisheries management Fisheries law Monitoring control and surveillance Vessel monitoring system Fishery Resources Monitoring System Catch reporting Fisheries observer Illegal, unreported and unregulated fishing Magnuson—Stevens Act Pulse fishing Fisheries organizations. The Lyons Press. A social unit is a group of sperm whales who live and travel together over a period of years. Main article: Whaling in Canada. Chairman's report of the Twenty-first Meeting.

The International Whaling Commission gave the species full protection in , but hunting by Japan in the northern Pacific Ocean continued until Arnoux's beaked whale B. The purpose of this complex is to generate powerful and focused clicking sounds, which the sperm whale uses for echolocation and communication. Mature males sometimes form loose bachelor groups with other males of similar age and size. Main article: History of whaling.