Atlantic cod was once one of the most important fish species in the world. The big, long-lived predator helped feed Europe and North America for centuries. But decades of overfishing in the mid–20th century caused populations to crash, wiping out 30,000 jobs in Canada alone and financially devastating many coastal […]

Floating solar farms could help to protect lakes and reservoirs from some of the harms of climate change, a new study suggests. However, given the complex nature of water bodies and differing designs of solar technologies, there could also be detrimental ecosystem impacts of deploying floating solar arrays. Credit: Giles […]

An example of what a complete fish fossil coelacanth looks like. This one is from the Jurassic of German. Credit: Professor David Martill, University of Portsmouth A serendipitous discovery of a fossilized bony lung reveals a massive ancient fish. Fossilized remains of a fish that grew as big as a […]

Plankton-feeding fishes often dominate the fish assemblage on oceanic coral reefs. Credit: Dr. Christina Skinner Study reveals open ocean waters once assumed to be unproductive are in fact teeming with an abundance of life on coral reefs. Since Charles Darwin’s day, the abundance of life on coral reefs has been […]

In warming waters, the demand for oxygen of many fish species will increase, progressively approaching the maximum oxygen supply capacity of their respiratory organs. New tool gauges impacts of warming waters on over 200 fish species. Warming ocean waters could reduce the ability of fish, especially large ones, to extract […]

Composite image showing just a small portion of the remarkable diversity of larval and juvenile fishes and invertebrates found living in surface slick nurseries along West Hawaii Island. Credit: Larval photos: Jonathan Whitney (NOAA Fisheries), Slick photo: Joey Lecky (NOAA Fisheries) The open ocean is a harsh place for newborn […]

Researchers at the mouth of the São Vicente Cave system. Credit: Adriano Gambarini From Brazil’s Amazon, researchers report “spooky interactions” among surface- and cave-dwelling electric fish, revealing shocking behavior of 300 blind cavefishes whose ancestors adopted life in darkness tens of thousands of years ago. A study of weakly electric […]

PHOTOGRAPH: MIKE GIL New models of coral reefs show how fish species communicate with one another. The findings may well help save these threatened ecosystems. AMONG THE MANY egregious scientific inaccuracies of Finding Nemo—fish can talk, sharks form support groups, turtles wax their shells—perhaps none is more glaring than the conceit of fish maintaining […]