Sunday, 1 December 2013

Rising ocean temperatures make fish lethargic say scientists

Rising ocean temperatures may cause large fish, including coral trout, to become lethargic (r)

November 2013: Ocean warming may make some large reef fish lethargic and unwilling to swim a team of researchers from the ARC Centre of Excellence for Coral Reef Studies at James Cook University in Australia have found.

Fish rely on swimming for almost all activities necessary for survival, including hunting for food and finding mates. "However," said researcher Dr Jacob Johansen, "global warming may reduce the swimming ability of many fish species, and have major impacts on their ability to grow and reproduce. The loss of swimming performance and reduced ability to maintain important activities, like moving to a spawning site to reproduce, could have major implications for the future distribution and abundance of these species."

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