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Krill Paradox
The Krill Paradox refers to the decline of krill biomass as a result of the dramatic decline of whale populations in the Antarctic. It was at the turn of the 20th century, when technological advancements enabled the exploration of the Antarctic and its seas, that the krill paradox was first observed. Specifically, a significant drop in krill numbers was noted in the early 1970s when researchers started to report changes in krill density and distribution. One of the key studies published in ''Geophysical Research Letters'' in 2016 highlighted that this decline came from the early 1970s when scientists started noticing that krill populations had dropped by 80 to 90 percent since that time. Particularly in certain areas of the Southern Ocean, specifically around the Antarctic Peninsula. This observation was made in conjunction with the at the time declining whale populations. During the era of great explorers like Roald Amundsen, the population of both Blue whale, Blue Whales and Fin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antarctic Krill (Euphausia Superba)
Antarctic krill (''Euphausia superba'') is a species of krill found in the Antarctica, Antarctic waters of the Southern Ocean. It is a small, swimming crustacean that lives in large schools, called swarms, sometimes reaching densities of 10,000–30,000 animals per cubic metre. It feeds directly on minute phytoplankton, thereby using the primary production energy that phytoplankton originally derive from the sun in order to sustain its pelagic biological life cycle, life cycle. It grows to a length of , weighs up to , and can live for up to six years. A key species in the Antarctic ecosystem and in terms of biomass (ecology), biomass, ''E. superba'' is one of the most abundant animal species on the planet, with a cumulative biomass of approximately . Life cycle The main spawn (biology), spawning season of Antarctic krill is from January to March, both above the continental shelf and also in the upper region of deep sea oceanic areas. In the typical way of all krill, the male at ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
