Dead Fish Washed Ashore during Golden Alga Toxic Bloom

Large fish more vulnerable to climate change-induced fish kills

Dead Fish Washed Ashore during Golden Alga Toxic Bloom

Reference image of dead fish washed ashore during a golden algae toxic bloom. Photo by Michael Hooper, USGS.

Climate change-induced droughts and fish kills affect larger fish more severely than smaller individuals, according to new research.

In a paper published in Environmental Biology of Fishes, researchers from Leiden University, Sportvisserij Zuidwest Nederland and the Sea Around Us initiative at the University of British Columbia compared evidence from drought-induced fish kills in the Netherlands, fisheries management literature and multiple physiological studies. They confirmed that when water gets warmer and deoxygenated, larger and older individuals within a species tend to die in greater numbers than their smaller and younger counterparts.

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Trilobites’ growth may have resembled that of modern marine crustaceans

Trilobites’ growth may have resembled that of modern marine crustaceans

Trilobites’ growth may have resembled that of modern marine crustaceans

A Triarthrus eatoni trilobite, 11 mm long, found in the Frankfort Shale, New York, USA. Photo by Dwergenpaartje, Wikimedia Commons.

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.

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