The world's oceans will likely lose about one-sixth of their fish and other creatures within 100 years if climate change continues on its current path. These are the findings of a wide-reaching, computer-based study by an international team of marine biologists.
Every degree Celsius that the world's oceans warm, their biomass — or the total weight of all the marine animal life — is expected to drop five percent, the study also found. The study predicts that if there is no change in the rate of worldwide greenhouse gas production, there will be a 17-percent loss of biomass by the year 2100. But, if the world reduces carbon pollution, biomass losses could be limited to only about 5 percent.Marine biologist Boris Worm, who helped run the study, added that the building blocks of marine life — plankton and bacteria — may decline less heavily. Those marine animals that we use directly, and care about most deeply, are predicted to suffer the most, said Worm. He works at Canada's Dalehousie University. University of Victoria biology professor Julia Baum was not part of the study, but she said the findings make sense. She noted that the possible effects of the predicted losses of animal life are huge.
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