Climate Change May Tank World's Fish Stocks

The lionfish may ruin us if you don't!

(NEWSER) - How to make Uncle Sam proud: Buy American, fly a flag, eat...lionfish? That third one is, indeed, what one government agency would like you to do. The voracious, aggressively invasive lionfish is wreaking havoc in the Caribbean, off the Florida Keys, and along the Atlantic as far north as Massachusetts, eating its way through 56 species of fish and invertebrates and multiplying like mad—a female produces 2 million eggs each year. That's led a government oceanic agency to get behind an "Eat Lionfish" campaign, reports MSNBC . More»

Federal panel moves to block trawlers from newly accessible waters

(NEWSER) - A federal panel has voted to block fishing trawlers from moving into a vast area of the Arctic Sea made newly accessible by melting ice, the New York Times reports. The move will protect 150,000 square nautical miles of US waters north of the Bering Strait while scientists assess commercial fishing's impact on the ecosystem. More»

Oceanic changes doomed '08 crop, but scientists can't agree on what caused them

(NEWSER) - West Coast fisheries has seen a 90% drop in salmon spawn since 2004, and while many blame rivers degraded by dams and diversions, some experts believe the problem has been pushed out to sea, reports Salon. Wind direction and water temperature have changed, bringing less food to the ocean’s surface for fish to feed on; whether climate change is to blame remains unclear. More»

(AP) - About four out of 10 freshwater fish species in North America are in peril, says a major study by US, Canadian, and Mexican scientists. And the number of subspecies of fish populations in trouble has nearly doubled since 1989, the new report says. One biologist called it "silent extinctions" because few notice the dramatic dwindling deep in lakes, rivers, and streams. And while they are unaware, people are the chief cause of the problem by polluting and damming freshwater habitats, experts said. More»

Depleted stocks throw ecosystems out of whack

(NEWSER) - Overfishing results in more than just the depletion of one species—it can mean the degradation of entire ecosystems. As the populations of large, predatory fish such as sharks and tuna decline, their prey flourishes, with sometimes-devastating results. The Christian Science Monitor looks at the problem of the world's increasingly depleted oceans. More»