News tagged with fish population
Fish food fight: Fish don't eat trees after all, says new study
Nov 24, 2009 |
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(PhysOrg.com) -- What constitutes fish food is a matter of debate. A high-profile study a few years ago suggested that fish get almost 50 percent of their carbon from trees and leaves, evidence for a very ...
EU OKs tougher penalties for illegal fishing
Oct 20, 2009 |
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(AP) -- The European Union agreed Tuesday on tougher penalties to counter illegal fishing, considered a major cause of the depletion of fish stocks in European waters, particularly of prized cod and bluefin tuna.
Some Canadian rivers at risk of drying up
Oct 15, 2009 |
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(PhysOrg.com) -- Some Canadian rivers are at risk of drying up as impacts of climate change intersect with growing water demand from the country's cities, industries and agriculture, a new WWF report has found.
Tropical regions to be hardest hit by fisheries shifts caused by climate change
Oct 08, 2009 |
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Major shifts in fisheries distribution due to climate change will affect food security in tropical regions most adversely, according to a study led by the Sea Around Us Project at The University of British Columbia.
Could stressed out sharks save more fish? (w/ Video)
Oct 02, 2009 |
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(PhysOrg.com) -- Marine biology graduate student Austin Gallagher has studied the dwindling shark population around the world—from the waters of the South Pacific to those off Southern California.
Changing the course of nature: Are fisheries directing the evolution of fish populations?
Sep 10, 2009 |
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For many of the types of fish we buy in stores or order in restaurants, the chance that an individual dies from fishing is several times higher than dying of natural causes. This may seem obvious to most (they had to get ...
To manage a fishery, you must know how the fish die
Aug 10, 2009 |
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Recreational anglers and commercial fishermen understand you need good fishery management to make sure there will be healthy populations of fish for generations to come. And making good management decisions ...
Sick fish may get sicker: Climate change and other stresses expected to affect entire populations of fish
Aug 03, 2009 |
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Entire populations of North American fish already are being affected by several emerging diseases, a problem that threatens to increase in the future with climate change and other stresses on aquatic ecosystems, according ...
Big Advantage for the Small -- Climate change influences the size of marine organisms
Jul 23, 2009 |
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The ice is melting, the sea level is rising and species are conquering new habitats. The warming of the world climate has many consequences. In the current issue of the renowned journal 'Proceedings of the ...
Overfishing and evolution
Jul 20, 2009 |
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Using snorkelers and SCUBA divers is not the best way to monitor fish populations, if we want to know the evolutionary effects of overfishing.
Seaway's 50th anniversary soiled by invasive species
Jun 26, 2009 |
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Fifty years ago Friday, President Dwight Eisenhower and Britain's Queen Elizabeth II walked down a red carpet, climbed aboard a "floating palace" of a yacht named Britannia and ceremoniously sailed through the St. Lambert ...
Deep-sea fish stocks threatened
Mar 11, 2009 |
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(PhysOrg.com) -- Commercial fishing in the north-east Atlantic could be harming deep-sea fish populations a kilometre below the deepest reach of fishing trawlers, according to a 25-year study published on ...
