Fish Getting Smaller as Water Warms

February 22, 2024 By: Spencer Durrant

Photo: Spencer Durrant

A new study looks at one of the leading theories for an explanation as to why fish are getting smaller as waters warm around the world. The leading theory, according to this article from, is that a fish’s gills have a harder time extracting oxygen from warmer water, leading to stunted growth. That theory, however, has now been proven mostly false thanks to some work from a team of scientists at the University of Massachusetts Amherst.

You can read more about this study here.