Article: The world's fish populations.(SCIENCE SCENE)(Brief article)

Article: Is pollution behind a massive fish kill? (Maryland, Virginia and ...
Animals;  November 1, 1997 ;     609 words ... ... tens of thousands of fish. The move marks the third river since August that has been closed, a disaster not only for fish populations but also for the region's tourist and fishing industries. Scientists believe a toxin excreted from Pfiesteria piscicida ...

Article: On the Dynamics of Exploited Fish Populations. ...
SciTech Book News;  December 1, 2005 ;     506 words ...1930665946 On the dynamics of exploited fish populations. (reprint, 1957) Beverton, Raymond J. H. and ... study the dynamics and reaction to exploitation of fish populations. This reprint includes a foreword to the 2004 reprint ...

Article: Reproductive changes from overfishing. (researchers fear the ...
Science News;  December 16, 1995 ;     672 words ...Before the collapse of cod fisheries off Canada's maritime provinces recently, annual harvests often removed 60 percent of the older adults. That was three times the recommended amount to sustain healthy stocks, notes Edward A. Trippel of the Department of Fisheries and Oceans in St. Andrews, New

Article: Fishing: what we don't keep. (research indicates that 15% of ...
Science News;  December 16, 1995 ;     700+ words ...As any angler knows, fish thrown back-because they're too small, the wrong type, or hunted only for sport-often don't survive. Because of the trauma they undergo when they are hauled in the net and taken out of the water for sorting, virtually all fish that commercial trawlers throw back are dead

Article: Barge interests hot over Missouri River proposal.(birds and ...
Workboat;  February 1, 2001 ;     700+ words ...Stunned by a federal biological opinion that could lead to major changes in commercial navigation on the Missouri River, the Midwest navigational industry says it will challenge the opinion and work to find alternatives that will not disrupt barge traffic on the river. And they could be helped by

Article: Climate change threatens food supplies: As Lake Tanganyika warms, ...
The Futurist;  November 1, 2003 ;     700+ words ...Long-term changes in the temperature of Lake Tanganyika in East Africa could have devastating impacts on a major food source for the region. Already, fish stocks in the lake have fallen by 30% in the past 80 years while algae declined by 20%, reports a team of researchers supported by the National

Article: Molecular Markers for Estimating Genetic Diversity in Pine River ...
Michigan Academician;  March 22, 2002 ;     700+ words ...Molecular Markers for Estimating Genetic Diversity in Pine River Fish Populations Contaminated with DDT. Robert Teachout * and David J. Stanton, Saginaw Valley State University, Biology Department, and David ...