Friday
05Mar2010
Entries in fish (27)
Tuesday
02Mar2010
Thursday
25Feb2010
Can biomanipulation of the sea rescue a collapsed fishery?
in 
Research Briefs | Feb 25, 2010
Research Briefs | Feb 25, 2010 The cod stock in the Baltic Sea collapsed in the 1990s because of overfishing and climate change, and this once-valuable fishery has not yet recovered. Could intensified harvesting of sprat—a small fish that eats cod eggs and competes with young cod for planktonic food—be the solution to restore cod, as some people suggest?
Wednesday
10Feb2010
Tuesday
02Feb2010
Adverse effects: when stream restoration improves habitat for invasive fish
in Research Briefs | Feb 2, 2010
Research Briefs | Feb 2, 2010 Stream restoration is a commonly used tool for improving the habitat of threatened native fish, particularly salmonids, which have suffered recent declines due to human disturbances. However, as a new study shows, restoration efforts can create their own problems for native fish by unintentionally improving the habitat of invasive species...
Wednesday
27Jan2010
Fishing, climate change not double trouble for corals
in Research Briefs | Jan 27, 2010
Research Briefs | Jan 27, 2010 Do fishing and climate change act synergistically on coral reef ecosystems, meaning the combined impact is greater than the sum of each acting individually? Conservation practitioners have expressed this concern, but synergism in ecosystems has been challenging to prove scientifically...
Wednesday
27Jan2010
Study finds high mercury levels, simplified food chain in prairie reservoir
in Research Briefs | Jan 27, 2010
Research Briefs | Jan 27, 2010 A new study on mercury levels in prairie reservoirs finds exceedingly high concentrations in northern pike residing in a newly constructed reservoir in Alberta. In addition, the study suggests the reservoir’s food web is extremely simplified, a factor that could be further exacerbating the elevated levels of mercury...
Thursday
14Jan2010
The ecological benefits of reduced stream flows
in Research Briefs | Jan 14, 2010
Research Briefs | Jan 14, 2010 In the conservation world, conventional wisdom holds that restricting the hydrology of a stream is a bad thing. However, a new article in the journal BioSciences provides a contrarian perspective...
Wednesday
13Jan2010
Study tracks salmon farm escapees
in Research Briefs | Jan 13, 2010
Research Briefs | Jan 13, 2010 Where do salmon go when they escape from fish farms? A new study experimentally releases farmed salmon in Norway and Scotland to answer this question...