Climate Effects on Fish Physiology and Growth

The difference between maximum metabolic rate and standard metabolic rate is referred to as aerobic scope, and because it constrains performance it is suggested to constitute a key limiting process prescribing how fish may cope with or adapt to climate warming. Owing to climate change, water temperatures have increased in marine and freshwater habitats around the world. Current projections predict a mean rise in temperature of 2–4°C globally by the end of this century, although locally the increase can be higher. For aquatic ectotherms, this may pose challenges of sufficient oxygen uptake to sustain their metabolic demand. The high thermal conductivity of water makes it challenging for aquatic ectotherms to maintain an internal temperature that differs from the surrounding water.

  • Physiological adaptations of fish
  • Environmental variables and oceanographic features
  • Effect of climate change on fish populations
  • Physiological constraints to climate warming

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