Atlantic horse mackerel. Photo by Kulac, Wikimedia Commons.
Contrary to what is stated in biology textbooks, the growth of fish doesn’t slow down when and because they start spawning. In fact, their growth accelerates after they reproduce, according to a new article published in Science.
Trilobites- extinct marine arthropods that roamed the world’s oceans from about 520 million years ago until they went extinct 250 million years ago, at the end of the Permian period – may have grown in a similar fashion and reached ages that match those of extant crustaceans, a new study has found.
Lake whitefish. Photo by Marco Verch, Flickr.
A physiological explanation and an evolutionary explanation related to the moment fish become sexually active – and spawn for the first time – have turned out to be two sides of the same coin, new research has found.
Common seadragon. Photo by Melanie Warren.
Despite their odd shape, which makes them resemble a tuft of seaweed, common and leafy seadragons grow in the same fashion as other bony fish, new research has found.
Atlantic cod (Gadus morhua) is among the fish species maturing and spawning earlier in the “spring” reproductive season, due to higher water temperature. Photo by GRID-Arendal, Flickr.
Fisheries managers and researchers may now predict how early fish will spawn in response to warming waters due to climate change, both in the oceans and in freshwaters.