EurekAlert! Marine Science

News Releases

Updates every hour. Last Updated: 15-Oct-2025 01:11 ET (15-Oct-2025 05:11 GMT/UTC)

6-Aug-2025

Big heart, acute senses key to explosive radiation of early fishes

University of Chicago
Peer-Reviewed Publication

An international team led by scientists from the Canadian Museum of Nature and the University of Chicago reconstructed the brain, heart, and fins of an extinct fish called Norselaspis glacialis from a tiny fossil the size of fingernail and found evidence of change toward a fast-swimming, sensorily attuned lifestyle well before jaws and teeth were invented to better capture food.

Journal: Nature

6-Aug-2025

Climate change is altering nitrogen composition in Arctic rivers, study finds

NYU Tandon School of Engineering
Peer-Reviewed Publication

Climate change is starving the Arctic Ocean of essential nutrients, with the region's six largest rivers now delivering far less of the type of nitrogen that marine ecosystems need to survive.

Journal: Global Biogeochemical Cycles

6-Aug-2025

New research compares effectiveness of common Atlantic sea scallop farming methods

University of Maine
Peer-Reviewed Publication

Researchers from the University of Maine are working to test and adapt scallop farming techniques to help grow the industry in the Gulf of Maine. This study analyzes the economic advantages and disadvantages of two common methods of scallop aquaculture: ear-hanging and lantern net techniques. Researchers used their results to develop a user-friendly application that compares the different costs and possibilities associated with starting scallop farms.

Journal: Aquaculture

6-Aug-2025

Arctic freshening and worse connected oceans: that was the marine world at the end of the Cretaceous period

University of the Basque Country
Peer-Reviewed Publication

Ocean health 66 million years ago analysed in an international study with the participation of EHU researcher Vicente Gilabert and published in Nature Communications

Journal: Nature Communications

6-Aug-2025

Seeing with fresh eyes: Snails as a system for studying sight restoration

Stowers Institute for Medical Research
Peer-Reviewed Publication

The eye of the apple snail is unusually similar to a human eye—but, unlike human eyes, it can regrow itself if injured or even amputated. New research from the Stowers Institute for Medical Research has established the apple snail as a novel research organism to study eye regeneration, with the potential to better understand and find treatments for eye conditions in humans like macular degeneration.

Journal: Nature Communications
Funder: Stowers Institute for Medical Research, Howard Hughes Medical Institute

5-Aug-2025

On-board camera footage offers bird’s eye glimpse into seabird flights and feeding behaviour

Lancaster University
Peer-Reviewed Publication

Scientists have captured unique on-board footage of Indian Ocean seabirds speeding just above the waves to catch flying fish on the wing.

The footage, obtained by lightweight bird-borne cameras formed part of a study of the lives of seabirds in the waters around the remote archipelago they call home.

Two red-footed boobies - a tropical cousin of the more familiar gannet – were carefully fitted with the tiny cameras to record how they catch their favourite food; flying fish. Of 15 capture attempts, 14 were towards flying fish while in flight and one was an underwater dive.

Journal: Proceedings of the Royal Society B Biological Sciences
Funder: Bertarelli Foundation

5-Aug-2025

There’s something fishy going on with great white sharks that scientists can’t explain

Florida Museum of Natural History
Peer-Reviewed Publication

White sharks exhibit stark differences between the DNA in their nuclei and the DNA in their mitochondria, and the longstanding theory that explains why has just been invalidated.

Journal: Proceedings of the National Academy of Sciences
Funder: U.S. National Science Foundation, College of Charleston, Florida Museum of Natural History

5-Aug-2025