The drastic increase in pink salmon numbers can be attributed to rising temperatures in the Bering Sea and North Pacific, where experts say the increase in temperature raises both the success rate of the salmon’s prey, as well as the fish’s metabolism and thus their ability to eat more and grow larger.
Little is known, however, on the exact effects climate change can have upon complex ecosystems, especially those underneath the water. The U.N.-commissioned Intergovernmental Panel on Climate Change report recently predicted that the warmer oceans could wreak havoc upon the populations of Atlantic cod and tuna.
Source: http://news.nationalgeographic.com/news/2014/03/140331-salmon-seabirds-pacific-fish-animals-science/
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