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Fishing and Hunting

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Synthesis of Mercury Distribution and Bioaccumulation Across Western North America

The unique combination of natural processes and human activities present in western North America can strongly affect the exposure of fish and birds to methylmercury, the most toxic form of mercury (Hg).
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Synthesis of Mercury Distribution and Bioaccumulation Across Western North America

The unique combination of natural processes and human activities present in western North America can strongly affect the exposure of fish and birds to methylmercury, the most toxic form of mercury (Hg).
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New Hepatitis B Virus Discovered in White Sucker (Catostomus commersonii)

The first known hepatitis B virus to infect fish (white sucker; Catostomus commersonii ) has been discovered by U.S. Geological Survey (USGS) scientists.
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New Hepatitis B Virus Discovered in White Sucker (Catostomus commersonii)

The first known hepatitis B virus to infect fish (white sucker; Catostomus commersonii ) has been discovered by U.S. Geological Survey (USGS) scientists.
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Chemical Combo and Intersex Fish Found at Smallmouth Bass Nesting Sites

Chemical contaminants including herbicides, veterinary pharmaceuticals, and biogenic hormones have been detected at fish nesting sites in the Potomac River watershed where endocrine disruption in smallmouth bass ( Micropterus dolomieu ) was also observed. Although these contaminants are known to originate from a variety of human and animal-waste sources, results of a recent U.S. Geological Survey...
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Chemical Combo and Intersex Fish Found at Smallmouth Bass Nesting Sites

Chemical contaminants including herbicides, veterinary pharmaceuticals, and biogenic hormones have been detected at fish nesting sites in the Potomac River watershed where endocrine disruption in smallmouth bass ( Micropterus dolomieu ) was also observed. Although these contaminants are known to originate from a variety of human and animal-waste sources, results of a recent U.S. Geological Survey...
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