Legislative Calendar

Legislative Calendar
Author: United States. Congress. Senate. Committee on Homeland Security and Governmental Affairs
Publisher:
Total Pages: 156
Release:
Genre:
ISBN:

Department of Commerce

Department of Commerce
Author: United States. Congress. House. Committee on Appropriations. Subcommittee on the Departments of Commerce, Justice, and State, the Judiciary, and Related Agencies
Publisher:
Total Pages: 1568
Release: 1987
Genre: Budget
ISBN:

Improving Fish Stock Assessments

Improving Fish Stock Assessments
Author: National Research Council
Publisher: National Academies Press
Total Pages: 194
Release: 1998-02-27
Genre: Technology & Engineering
ISBN: 0309174406

Ocean harvests have plateaued worldwide and many important commercial stocks have been depleted. This has caused great concern among scientists, fishery managers, the fishing community, and the public. This book evaluates the major models used for estimating the size and structure of marine fish populations (stock assessments) and changes in populations over time. It demonstrates how problems that may occur in fisheries dataâ€"for example underreporting or changes in the likelihood that fish can be caught with a given type of gearâ€"can seriously degrade the quality of stock assessments. The volume makes recommendations for means to improve stock assessments and their use in fishery management.