News tagged with fisheries

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Evidence of overfishing on Great Barrier Reef

(Phys.org) —Sea cucumber fishing in the Great Barrier Reef Marine Park shows worrying signs of being unsustainable. Many species being targeted are endangered and vulnerable to extinction, as determined by the International ...

dateOct 15, 2013 in Ecology
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Study proves that one extinction leads to another

When a carnivore becomes extinct, other predatory species could soon follow, according to new research. Scientists have previously put forward this theory, but a University of Exeter team has now carried out the first experiment ...

dateAug 15, 2012 in Ecology
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Crews begin dismantling key California dam

For nine decades, the 10-story-high concrete dam with its rusted pipes, railings and valves has stood in the wooded canyons between the Big Sur hills and the picturesque town of Carmel, blocking the natural flows of the Carmel ...

dateJun 21, 2013 in Environment
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It's all in the genes—including the tracking device

Parentage-based tagging (PBT) is an emerging genetic-based fish tagging method that involves genotyping hatchery broodstock. PBT is a passive non-invasive approach to stock identification because the parents, not the offspring, ...

dateJun 24, 2013 in Ecology
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Navy training, testing may kill whales, dolphins

U.S. Navy training and testing could inadvertently kill hundreds of whales and dolphins and injure thousands over the next five years, mostly as a result of detonating explosives underwater, according to two environmental ...

dateAug 30, 2013 in Ecology
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