Articles on Fish

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Larval black sea bass, an important commercial species along the US Atlantic coast. NOAA Fisheries/Ehren Habeck

Fish larvae float across national borders, binding the world’s oceans in a single network

Fish can't read maps, and their eggs and larvae drift across national boundaries. Recent research shows that local problems in one fishery can affect others across wide areas.
Extreme flooding during Hurricane Maria in 2017 was hazardous for the Puerto Rican people. But a new study finds that it helped native fish populations rebound after years of drought. AP Photo/Alvin Baez

Caribbean fish love catastrophic hurricanes

Big storms with lots of flooding, like hurricanes Dorian and Maria, actually restore the Caribbean's delicate balance between native and nonnative fish species, new research finds.
An Atlantic cod on ice. Cod fisheries in the North Sea and Irish Sea are declining due to overfishing and climate change. Robert F. Bukaty/AP

Ocean warming has fisheries on the move, helping some but hurting more

As the oceans warm, fish are moving to stay in temperature zones where they have evolved to live. This is helping some species, hurting others and causing a net reduction in potential catch.
Most species of tiny coral reef fish are overlooked because of their small size. Now, their importance for coral reef ecosystems has put these fish and their unique way of life in the limelight. Sinclair-Taylor Tane

Snack-sized ‘candy’ fish explain a coral mystery

New research reveals that miniature, brightly coloured fish play an outsized role in the marine food chain in coral reefs.
Fish fences are typically positioned on tropical seagrass meadows, which are important ecosystems for fish communities and the health of neighbouring habitats. Benjamin Jones/Project Seagrass

Small-scale fisheries have unintended consequences on tropical marine ecosystems

To ensure overall biodiversity, the intensity and impact of small-scale fisheries' methods needs far more attention.
A school of juvenile bocaccio in the midwaters of Platform Gilda, Santa Barbara Channel, Calif. Scott Gietler

Retired oil rigs off the California coast could find new lives as artificial reefs

Californians love their coast and strongly oppose offshore drilling. Will they support converting old oil rigs to artificial reefs – a policy that benefits both marine life and oil companies?
Climate change could further stress species such as Atlantic cod that already are threatened by overfishing. Vladimir Wrangel/Shutterstock

How is climate change affecting fishes? There are clues inside their ears

Tiny calcified formations inside fishes' ears can be used to trace a fish's life history – and potentially, how climate change has affected its growth and development.
A report has found the causes of mass fish deaths in the Darling river. Dean Lewins/AAP

We wrote the report for the minister on fish deaths in the lower Darling – here’s why it could happen again

Fish deaths at the lower Darling can happen again. Here's what we can do about it.

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