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Tag: "waterways" at biology news

Alaskan puzzles, monitoring provide insight about North Pacific salmon runs

...med systems, Hilborn says. Other than fishing, the waterways studied by the Alaska Salmon Program are not subject to human activities such as dam building, logging or development. The money will help expand the scope of monitoring, fund new techniques for sampling and help make the UW database available throu...

Man-made wetland's effectiveness similar to natural marsh

...detriment of fish and other animals that depend on waterways for survival. Algae essentially rob oxygen from water in a pond, lake and even the ocean. "We saw a pretty significant reduction in phosphorus and nitrate concentrations ?close to the kind of decrease we typically see in a natural wetland," said Wil...

Amazon source of 5-year-old river breath

.... Carbon is carried by rains and groundwater into waterways from soils, decomposing woody debris, leaf litter and other organic matter. Once in waterways it is chewed up by microorganisms, insects and fish. The carbon dioxide they generate quickly return...

Past droughts geographically widespread in the West, according to tree-ring data

...lmost 800 years in the Salt-Verde basin and covers waterways from the states of Arizona, Colorado, New Mexico, Utah and Wyoming. The project's overall conclusion is that severe droughts and low-flow conditions in one basin are unlikely to be offset by abundant streamflow in the other basin. "Prior to the fin...

Pollution-eating bacteria produce electricity

...iologists seeking ways to eliminate pollution from waterways with microbes instead discovered that some pollution-eating bacteria commonly found in freshwater ponds can generate electricity. They present their findings today at the 105th General Meeting of the American Society for Microbiology. "The bacteria ...

Fresh water affected by salt from deicing roads

...months chloride in urbanized areas can increase in waterways to as high as 5 g/l which is equivalent to 25% of seawater concentrations. Dr. Kaushal of the University of Maryland Center for Environmental Science Appalachian Laboratory said, "There is a direct connection between the rate of construction...

'Biobullets' fight harmful mussels

... control an invasive mollusk that has ravaged U.S. waterways for nearly two decades clogging water pipes, virtually wiping out some native mussels species and causing billions of dollars in industrial damage. The new microcapsules, which contain toxins that dissolve within a zebra mussel's digestive tract, off...

Cornell lab confirms deadly fish virus spreading to new species

...thal fish virus in the Great Lakes and neighboring waterways is approaching epidemic proportions, according to Paul Bowser, Cornell professor of aquatic animal medicine in the College of Veterinary Medicine. The viral hemorrhagic septicemia virus (VHSV), which causes anemia and hemorrhaging in fish, has now be...

Rare soft-shell turtle, nesting ground found in Cambodia

...s “a near pristine region of tall riverine forest, waterways and island archipelagos where further exciting biological discoveries will almost certainly be made.?He said a further survey of the area by an international team of flora and fauna experts was planned for July 2007. The turtle survey team consist...

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