News tagged with fishery management

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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Researchers studying spiny dogfish, Gulf of Maine's mini shark

For such a small shark species, there seems to be super-sized confusion about its population status. But for researchers at the University of New Hampshire, one thing is clear - definite changes have occurred to spiny dogfish ...

dateFeb 24, 2009 in
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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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US keeps bluefin tuna off endangered list

The United States on Friday rejected calls to protect Atlantic bluefin tuna as an endangered species, saying that while it was worried about overfishing it did not fear imminent extinction.

dateMay 27, 2011 in Ecology
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Early warning signs of population collapse

Many factors—including climate change, overfishing or loss of food supply—can push a wild animal population to the brink of collapse. Ecologists have long sought ways to measure the risk of such a collapse, which could ...

dateApr 10, 2013 in Ecology
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