Sperm whales are the largest of the toothed whales and have one of the widest global distributions of any marine mammal species. They are found in all deep oceans, from the equator to the edge of the pack ice in the Arctic and Antarctic. They are named after the waxy substance—spermaceti—found in their heads. The spermaceti is an oil sac that helps the whales focus sound.
Greece takes first measures to protect sperm whales from ship collision
Conserve — The Dominica Sperm Whale Project
This week, ahead of World Whale Day 21 February , the Greek government took an important step that will enhance the protection of sperm whales in Greece and the Mediterranean. For the first time an official notice was issued instructing mariners to look out for marine mammals and avoid collisions in the Hellenic Trench. Better rules and transparency needed to fight overexploitation. WWF launches 5-month sailing journey to unveil Mediterranean marine treasures and free them from ghost gear. Toggle navigation.
The sperm whale or cachalot [a] Physeter macrocephalus is the largest of the toothed whales and the largest toothed predator. It is the only living member of the genus Physeter and one of three extant species in the sperm whale family , along with the pygmy sperm whale and dwarf sperm whale of the genus Kogia. The sperm whale is a pelagic mammal with a worldwide range, and will migrate seasonally for feeding and breeding. The females cooperate to protect and nurse their young.
The Phoenix Archipelago in the Central Pacific is situated in what was once one of the most productive areas for capturing sperm whales Physeter macrocephalus. Now, as large-scale Marine Protected Areas MPAs have provided protection for marine mammals and their food sources, it is important to have a solid understanding of historical baselines so recovery distributions can be compared with pre-whaling distributions. Using historic whaling records from American whaling vessels operated through the wider Phoenix Archipelago region, we reconstructed information about the presence and distribution of P.