Some (Fish Might) Like It Hot: Habitat Quality and Fish Growth from Past to Future Climates.

Current expectation is that projected climate change may have adverse effects on fish habitats and survival. The analysis leading to these concerns is typically done at large scale with limited possibility to quantify the local biological response and compare with previous conditions. Our research investigated the effects of recorded climate conditions on Chinook salmon () spawning and rearing habitats and growth responses to the local climate and compared those conditions to predicted responses to a climate change.

The biophysical basis of thermal tolerance in fish eggs.

A warming climate poses a fundamental problem for embryos that develop within eggs because their demand for oxygen (O) increases much more rapidly with temperature than their capacity for supply, which is constrained by diffusion across the egg surface. Thus, as temperatures rise, eggs may experience O limitation due to an imbalance between O supply and demand. Here, we formulate a mathematical model of O limitation and experimentally test whether this mechanism underlies the upper thermal tolerance in large aquatic eggs.