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Author: Patti A. Wickens
Publisher: Conran Octopus
Published: 1995
Total Pages: 104
ISBN-13:
DOWNLOAD EBOOKEffect of pinnipeds, i.e. sea lions, fur seals, true seals and walruses, on fisheries. Cf. p. 2.
Author: Nick Gales
Publisher: CSIRO PUBLISHING
Published: 2003
Total Pages: 468
ISBN-13: 9780643069534
DOWNLOAD EBOOKBrings together contributions from 68 leading scientists from 12 countries to provide an up-to-date review on the way we manage our interactions with whales, dolphins, seals and dugongs.
Author: Juan J. Alava
Publisher: CRC Press
Published: 2017-07-12
Total Pages: 285
ISBN-13: 1351647636
DOWNLOAD EBOOKPinnipeds are a fascinating group of marine mammals that play a crucial role as apex predators and sentinels of the functioning and health of marine ecosystems. They are found in the most extreme environments from the Polar regions to the tropics. Pinnipeds are comprised of about 34 species, and of those at least 25% live permanently in tropical zones. This book reviews and updates current research on the biology, marine ecology, bio-monitoring, and conservation of tropical pinniped populations, including their behavior, anthropogenic stressors, and health. It also looks at challenges to be faced for the conservation of tropical pinnipeds, many of which are threatened species.
Author: J. R. Beddington
Publisher: Unwin Hyman
Published: 1985-01-01
Total Pages: 354
ISBN-13: 9780046390037
DOWNLOAD EBOOKAuthor:
Publisher:
Published: 1997
Total Pages: 794
ISBN-13:
DOWNLOAD EBOOKAuthor: United States. Marine Mammal Commission
Publisher:
Published: 1992
Total Pages: 804
ISBN-13:
DOWNLOAD EBOOKAuthor: Simon P. Northridge
Publisher: Bernan Press(PA)
Published: 1984
Total Pages: 214
ISBN-13:
DOWNLOAD EBOOKSummarizes available information on distribution, abundance, and feeding habits of cetacean, pinniped and sirenian mammals as well as information on interactions between these species and fisheries throughout the world. Catalog of marine mammal species, their population sizes, distributions, and diets is followed by area account of their interactions with fisheries.
Author: William F. Perrin
Publisher: Academic Press
Published: 2009-02-26
Total Pages: 1355
ISBN-13: 0080919936
DOWNLOAD EBOOKThis thorough revision of the classic Encyclopedia of Marine Mammals brings this authoritative book right up-to-date. Articles describe every species in detail, based on the very latest taxonomy, and a host of biological, ecological and sociological aspects relating to marine mammals. The latest information on the biology, ecology, anatomy, behavior and interactions with man is provided by a cast of expert authors – all presented in such detail and clarity to support both marine mammal specialists and the serious naturalist. Fully referenced throughout and with a fresh selection of the best color photographs available, the long-awaited second edition remains at the forefront as the go-to reference on marine mammals. - More than 20% NEW MATERIAL includes articles on Climate Change, Pacific White-sided Dolphins, Sociobiology, Habitat Use, Feeding Morphology and more - Over 260 articles on the individual species with topics ranging from anatomy and behavior, to conservation, exploitation and the impact of global climate change on marine mammals - New color illustrations show every species and document topical articles FROM THE FIRST EDITION "This book is so good...a bargain, full of riches...packed with fascinating up to date information. I recommend it unreservedly it to individuals, students, and researchers, as well as libraries." --Richard M. Laws, MARINE MAMMALS SCIENCE "...establishes a solid and satisfying foundation for current study and future exploration" --Ronald J. Shusterman, SCIENCE
Author: Sean Pascoe
Publisher: Food & Agriculture Org.
Published: 1997
Total Pages: 156
ISBN-13: 9789251040430
DOWNLOAD EBOOKThe increase in commercial fisheries production over the last 50 years has been accompanied by an increase in the level of incidental catch and discarding of a number of species. Approximately one quarter of the marine commercial catch destined for human consumption is discarded at sea. This has raised the concern of a number of groups in society, including environmentalists, humanitarians and fishers themselves. In this paper, the economic incentives to discard fish are examined. The effects of different managemenet policies on these incentives are also investigated. The concept of an optimal level of discarding is discussed taking into account the externalities that can be created by discarding. Finally, the effectiveness of various measures to reduce the level of discarding is reviewed. these including technical, administrative and economic measures.
