The Ross Sea slope is also considered a 'hotspot' for the rare Arnoux's beaked whale and is home to more than two hundred thousand crabeater
seals, perhaps 8000 leopard seals and 5000 Ross seals.
The data recovered from tagged Crabeater
seals and Adelie penguins revealed their diving and feeding behavior, and researchers discovered some movements that they hadn't suspected.
Similarly, around the Antarctic Peninsula, Adelie penguins, which winter on increasingly scarce sea ice, are being displaced by chinstrap penguins, which prefer open water, just as elephant seals are pushing aside their cold-loving cousins, the crabeater
In pinnipeds, the disease has been described in crabeater
seals (Phoca carcinophagus) from the Antarctic (1), Baikal seals (P.
They are solitary predators and eat everything from penguins and krill to other seals, particularly crabeater
There are 4 Antarctic seal species--Weddell, Leopard, Crabeater
, and Ross.
Antarctic penguins and crabeater
seals are already declining.
Reichel, DDT Residues in Adelie Penguins and a Crabeater
Seal from Antarctica, 210 NATURE 670, 670-72 (1966).
On ice, however, the Antarctic crabeater
seal is the fastest sprinter, reaching reported speeds of up to 25 km per hour when chased.
While no modern whales use their teeth to feed this way, Mitchell notes that the Crabeater
seal, which does not eat crabs, has notched teeth that is uses to filter krill and other invertebrates.
Other dramatic signs of climate change include retreating glaciers, more snowfall (warming in Antarctica means more precipitation in the form of snow), and the displacement of ice-dependent species like adelie penguins, crabeater
seals and leopard seals with more adaptable, northerly, open water species like chinstrap penguins, elephant seals and fur seals.
Populations of crabeater
seals, which also require pack ice, are falling, while southern fur, southern elephant, and other open-water seals are extending their ranges further south.