The trade journal selects a shoal of fish as the best photo

It was shot by the photographer and scientist Kristen Brown from the University of Pennsylvania in Philadelphia, as the journal “BMC Ecology and Evolution” announced on Friday in London.

“This picture shows both the beauty and abundance of our oceans and the worsening crisis that is unfolding in the world of the seas,” said Brown, according to a statement. Rich coral reefs like this are becoming increasingly rare. “Without real efforts to reduce greenhouse gas emissions and improve water quality, there is a risk that coral reefs as we know them will disappear while we are still alive.”