Author :
Publisher :
Page : 808 pages
File Size : 45,62 MB
Release : 2004
Category :
ISBN :
Author :
Publisher :
Page : 702 pages
File Size : 50,20 MB
Release : 2002
Category :
ISBN :
Author :
Publisher :
Page : 140 pages
File Size : 22,8 MB
Release : 2005
Category : Northern fur seal
ISBN :
Author : Rachel Cunningham-Day
Publisher : Universal-Publishers
Page : 226 pages
File Size : 24,35 MB
Release : 2001
Category : Science
ISBN : 1581126522
This book reviews the current status of, and threats to, shark populations globally with special reference to the basking shark and the great white shark. This book outlines why sharks are a valuable resource, identifies threats to sharks and where they occur and reviews what we need to know about sharks in order to protect them. Fisheries management procedures are investigated to target areas requiring future research and implementation. Conservation initiatives, legislation, and international agreements are reviewed and future measures suggested. Case histories on the basking shark and the great white shark detail threats specific to these species and identify research and management requirements.
Author : Merry Camhi
Publisher :
Page : 146 pages
File Size : 24,60 MB
Release : 1999
Category : Shark fisheries
ISBN :
Author : United States. National Marine Fisheries Service. Office of Protected Resources
Publisher :
Page : 325 pages
File Size : 11,72 MB
Release : 2008
Category : Rare mammals
ISBN :
Author :
Publisher :
Page : 6 pages
File Size : 30,63 MB
Release : 1983
Category : Marine resources conservation
ISBN :
Author : National Research Council
Publisher : National Academies Press
Page : 194 pages
File Size : 47,68 MB
Release : 1998-02-27
Category : 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.
Author : Kieran Kelleher
Publisher : Food & Agriculture Org.
Page : 156 pages
File Size : 47,56 MB
Release : 2005
Category : Business & Economics
ISBN : 9789251052891
This publication gives an updated review of the quantity of discards in the world's marine fisheries, using information from a broad range of fisheries in all continents. A number of policy issues are discussed including a 'no discards' approach to fisheries management, the need for balance between bycatch reduction and bycatch utilisation initiatives, and concerns arising from incidental catches of marine mammals, birds and reptiles. The report also highlights the need for more robust methods of estimating discards, and the development of bycatch management plans.
Author :
Publisher :
Page : 112 pages
File Size : 27,50 MB
Release : 2012-04
Category : Code of federal regulations
ISBN :
