Sperm whales may also have white scars on their bodies, probably caused by other sperm whales or by cephalopods. It has a single S-shaped blowhole located in the front of the head facing forward. Lophogastrida, Stygiomysida and Mysida Gestation lasts for 14 to 16 month and there sex ratio is 1: In any case, sperm whales are mainly found in areas of high primary production Mann et al. This region, between and 1,m beneath the ocean's surface, earns its name because only the faintest hints of sunlight can reach such depths.
Sperm Whales in the Eastern Pacific
Whales have a unique respiratory system that lets them stay underwater for long periods of time without taking in oxygen. Gestation period is months and a single calf is born, which nurses for up to 2 years. Sperm whales are very deep divers and may stay submerged from 20 minutes to over an hour. And so the appellation must at last have come to be bestowed upon the whale from which this spermaceti was really derived. Darby A Japan forced to halve bluefin catch.
North Atlantic Right Whale, Quick Facts
Sperm whales live for up to 80 years. In they received international protection, but in the following 70 years their numbers have failed to bounce back the way some other whale species have. Blue whiting has been a key source of food for a whole variety of creatures in the ocean ecosystem ranging from tuna and seabirds to dolphins, sharks and whales. The whale spent long periods of time at the bottom of dives, during which there was considerable variability in both depth and velocity data, with occasional bursts in velocity. The fluke is also triangular and very thick. They nurse for two years, but may continue nursing intermittently for up to eight years!
They can dive two miles deep with one gulp of air for two hours. Report of the International Whaling Comission. Sperm whale back, showing wrinkled Sperm whales are very deep divers and may stay submerged from 20 minutes to over an hour. It has a single S-shaped blowhole located in the front of the head facing forward. However, commercial whaling at a large scale for this species in the North Pacific and Antarctic within the last three generations 82 years certainly resulted in a global decline during this period.