Global warming may shrink fish species in size by up to 24%, with the largest decreases in the Indian and Atlantic oceans, scientists have warned. Researchers from the University of British Columbia modelled the impact of rising temperatures on more than 600 species between 2001 and 2050. The scientists argued that failure to control greenhouse gas emissions will have a greater impact on marine ecosystems than previously thought.
Warmer waters could decrease ocean oxygen levels and significantly reduce fish body weight. Previous research has suggested that changing ocean temperatures would impact both the distribution and the reproductive abilities of many species of fish. This new work suggests that fish size would also be heavily impacted.
The researchers built a model to see how fish would react to lower levels of oxygen in the water.
Warmer waters could decrease ocean oxygen levels and significantly reduce fish body weight. Previous research has suggested that changing ocean temperatures would impact both the distribution and the reproductive abilities of many species of fish. This new work suggests that fish size would also be heavily impacted.
The researchers built a model to see how fish would react to lower levels of oxygen in the water.
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