Tag: fisheries
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Fraser River so warm it may kill migrating sockeye salmon
Photo: A worker with Fisheries and Oceans Canada tosses a sockeye salmon back into the water during tagging on the Adams River, a tributary of the Fraser, in October 2006. (Andy Clark/Reuters) Waters staying above 20 C (68° F) for days, which causes high stress and ‘pre-spawn mortality’ in fish, DFO says Sockeye salmon are…
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Can Deepwater Aquaculture Avoid the Pitfalls of Coastal Fish Farms?
An open-ocean fish farm in Hawaii. Courtesy of Bryce Groark Near-shore fish farms have created a host of environmental problems. Now, U.S. aquaculture advocates – backed by mainstream conservation groups – are saying that locating well-run operations out in the ocean could produce sustainable food and protect wild stocks from overfishing. Donna Lanzetta has a…
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Scientists uncover a centuries-old case of mistaken identity in the Chesapeake Bay
Some Chesapeake Bay jellyfish sting swimmers, clog fishing nets & can close beaches. They also protect commercially valuable Eastern oysters from predators.
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Discovery Shows the Devastating Impact Salmon Farms Have on the Wild
Photo: wild herring school passes in front of farmed salmon in Wicklow fish farm pen. Sea Shepherd’s research vessel, the R/V Martin Sheen, is currently in the middle of Operation Virus Hunter II, a salmon-defense campaign off the coast of British Columbia, assisting Morton in her investigation on the impact that salmon farms have on…




