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Agriculture

Agriculture : Aquaculture and Fisheries
Atlantic Salmon in Maine

Because of the pervasive and substantial decline of Atlantic salmon populations in Maine over the past 150 years, and because they are close to extinction, a comprehensive statewide action should be taken now to ensure their survival. The populations ...

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Improving the Use of the "Best Scientific Information Available" Standard in Fisheries Management

Under the Magnuson-Stevens Fisheries Conservation and Management Act (FCMA), managers are required to use the “best scientific information available” in the preparation of federal fishery management plans (National Standard 2 in the FCMA). However, the Act provides no further ...

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Managing the Columbia River: Instream Flows, Water Withdrawals, and Salmon Survival

Flows of the Columbia River, although modified substantially during the twentieth century, still vary considerably between seasons and between years. Lowest flows tend to occur during summer months when demand for irrigation water is at its highest and when ...

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Endangered and Threatened Fishes in the Klamath River Basin: Causes of Decline and Strategies for Recovery

In 1988 the U.S. Fish and Wildlife Service listed two endemic fishes of the upper Klamath River basin of Oregon and California, the sucker and the Lost River sucker, as endangered under the federal Endangered Species Act (ESA). In 1997, ...

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Science and Its Role in the National Marine Fisheries Service

NMFS has a difficult and complex task in managing U.S. marine fisheries. Despite some successes, too many stocks continue to decline. Over the past decade, several problems have been identified that have contributed to the current dissatisfaction with how marine ...

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Effects of Trawling and Dredging on Seafloor Habitat

Concerns over the potential ecological effects of fishing have increased with the expansion of fisheries throughout the marine waters of the United States. Effects of Trawling and Dredging on Seafloor Habitat describes how assessment of fishing impacts depends on gear ...

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Genetic Status of Atlantic Salmon in Maine:Interim Report

Atlantic salmon in Maine, once abundant but now seriously depleted, were listed as endangered under the federal Endangered Species Act (ESA) in November 2000. The listing covers the wild fish in eight Maine rivers as a single "distinct population segment." ...

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The Drama of the Commons

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Scientific Advances in Animal Nutrition: Promise for the New Century, Proceedings of a Symposium

The science of animal nutrition has made significant advances in the past century. In looking back at the discoveries of the 20th century, we can appreciate the tremendous impact that animal nutrition has had on our lives. From the discovery ...

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Recruiting Fishery Scientists: Workshop on Stock Assessment and Social Science Careers

The National Marine Fisheries Service (NMFS) employs many fishery scientists with diverse skills. The agency finds that the supply of fishery biologists is adequate to meet most of its demand. However, increasing demands on the agency to understand fish populations ...

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