Study Says Warming Waters will Cause Fish to Move to the Poles


According to scientists at the University of British Columbia (UBC), as ocean temperatures rise over the next century, fish will migrate to cooler latitudes. This means that many regions of the tropics could become regions for local fish extinctions. This, in turn, could threaten ecosystems and human livelihoods.

The results of the study were based on climate scenarios issued by the Intergovernmental Panel on Climate Change (IPCC). For the study, a research team modeled the effects of best- and worst-case ocean warming scenarios on the global distributions of 802 species of fish and marine invertebrates. In the best-case scenario: an increase of one degree centigrade by 2100 — species would be expected to migrate from their present ranges at an average of 15 kilometers per decade. The prediction for a worst-case situation, a three degrees centigrade increase, is a migration of 26 kilometers per decade.

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SOURCE: Digital Journal
Tim Sandle

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