Harems Stellar Sea Lions in “A” are the largest of the eared seals with males nearly 1 ton! In “B” a harem of California Sea Lions on Santa Barbara Island in S.Cal. The larger Elephant Seals are in the top of the picture.
Cetaceans swim with strong tail and flukes Key facts (differ between species): average life span: 10 to 50 years gestation: 10 to 17 months calving: can occur every 2 to 5 years, one calf at a time size: "typical" dolphins are about two m long and weigh 100 kg
What Is The Difference Between A Dolphin And A Porpoise?
I heard this question asked, on Johnny Carson. And, Johnny decided that a dolphin was a mammal, and a porpoise was a fish.
They are both mammals, and are very closely related.
The porpoises have a rounded head, while the dolphins have a protruding snout. They are smaller members of the toothed whale family
Teeth are cone shaped, and top and bottom teeth interlock.
Melon-shaped head with a beak.
They have a dorsal fin.
There are 36 species of dolphin, including bottlenose dolphin, Risso's dolphin, false killer whale, Pacific whitesided dolphin, orca (killer whale), longfinned pilot whale, shortfinned pilot whale, and Irrawaddy dolphin.
Why are dolphins affected by tuna fisheries? Yellow-fin tuna often school beneath large herds of spotted dolphins in the eastern Pacific Ocean. They both are feeding on surface-dwelling squids, mackerel and flying fish. When fishing nets are set beneath the dolphins to surround the tuna, dolphins and other by-catch also get tangled in the nets and die. Public pressure surrounding this controversial issue has prompted a 97 percent reduction of dolphin by-catch in the last seven years. Dolphins are only affected by the yellow-fin tuna fishery. Albacore tuna do not associate with dolphins.
Net tough on dolphins! Since 1990 the 3 top tuna packers agreed to not buy tuna from dolphin killing suppliers This net has now been changed so that dolphins are not harmed by US fisherman.
The Mermaid Cares Chicken of the Sea ® implemented "The Mermaid Cares" dolphin-safe policy in April 1990 and is among the industry's leaders in implementing programs to prevent accidental dolphin mortality. All tuna purchased, processed and sold by Chicken of the Sea is dolphin-safe... period! There is no flexibility in our policy. All the suppliers of our raw tuna and all suppliers of finished goods must be 100% dolphin-safe. None of the tuna we purchase is caught in association with dolphins. Our commitment to help solve the dolphin mortality problem has been long-standing, and we at Chicken of the Sea can truly say, "The Mermaid Cares".