Hatchery fish mask the decline of wild salmon populations

Scientists have found that only about ten percent of the fall-run Chinook salmon spawning in California's Mokelumne River are naturally produced wild salmon. A massive influx of hatchery-raised fish that return to spawn in ...

Gone fishing? We have for 42,000 years

(PhysOrg.com) -- An archaeologist from The Australian National University has uncovered the world’s oldest evidence of deep sea fishing for big fish, showing that 42,000 years ago our regional ancestors had mastered ...

Modern fish communities live fast and die young

Fish communities in the 21st Century live fast and die young. That's the main finding of a recent study by researchers from the Wildlife Conservation Society who compared fish recently caught in coastal Kenya with the bones ...

Deep-sea worms eat found to eat fish bones

(PhysOrg.com) -- A new study led by a scientist at Scripps Institution of Oceanography at UC San Diego is painting a more complete picture of an extraordinary sea worm that makes its living in the depths of the ocean on the ...

Salmon in hot water

Rearing juvenile salmon at the relatively high temperature of 16 C causes skeletal deformities in the fish. Researchers writing in the open access journal BMC Physiology investigated both the magnitude and mechanisms of this ...

Fossils suggest earlier land-water transition of tetrapod

New evidence gleaned from CT scans of fossils locked inside rocks may flip the order in which two kinds of four-limbed animals with backbones were known to have moved from fish to landlubber.

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