Search results
Results From The WOW.Com Content Network
However, because blue whales feed low on the food chain, there is a lesser chance for bioaccumulation of organic chemical contaminants. [155] Analysis of the earwax of a male blue whale killed by a collision with a ship off the coast of California showed contaminants like pesticides, flame retardants, and mercury.
The pelagic food web, showing the central involvement of marine microorganisms in how the ocean imports nutrients from and then exports them back to the atmosphere and ocean floor. A marine food web is a food web of marine life. At the base of the ocean food web are single-celled algae and other plant-like organisms known as phytoplankton.
In 1998–1999, Harvard researchers published their DNA identifications of samples of whale meat they obtained in the Japanese market, and found that mingled among the presumably legal (i.e. minke whale meat) was a sizeable proportion of dolphin and porpoise meats, and instances of endangered species such as fin whale and humpback whale. (Blue ...
“The blue whale is the largest and loudest animal on Earth.” The blue whale is the largest animal on Earth and likely the largest animal ever to have lived. While this ocean mammoth is dubbed ...
"Alfaguara" was the name given to blue whales by Chilean whalers. The focus of the project is on preservation of these endangered animals, the largest in the world. [ 1 ] The project is operated by the Centro de Conservacion Cetacea (CCC), established in 2001. [ 2 ]
The Antarctic krill is an important species in the context of biogeochemical cycling [74] [42] and in the Antarctic food web. [75] [76] It plays a prominent role in the Southern Ocean because of its ability to cycle nutrients and to feed penguins and baleen and blue whales.
The tiny creatures are only a few centimetres long but play a critical role in Antarctic marine ecosystems, sustaining penguins, seals and the world’s largest animals, including blue whales.
In general, blue whale populations migrate between their summer feeding areas near the poles and their winter breeding grounds near the tropics. There is also evidence of year-round residencies, and partial or age/sex-based migration. Blue whales are filter feeders; their diet consists almost exclusively of krill. They are generally solitary or ...