Atlantic Halibut (Hippoglossus Hippoglossus) and Pacific Halibut (H. Stenolepis) and Their North American Fisheries PDF Download
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Author: Robert J. Trumble
Publisher: NRC Research Press
ISBN: 9780660151113
Category : Nature
Languages : en
Pages : 106
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Book Description
Atlantic halibut and Pacific halibut off the Atlantic and Pacific coasts of North America share many biological characteristics. The conventional separation of the halibut into separate species is not uniformly accepted. Reproduction and early life history are nearly identical, although the extensive drift of Pacific halibut eggs and larvae and countermigration as juveniles have not been demonstrated for the Atlantic halibut. Adult halibut undergo migration from winter spawning grounds along the upper continental slope to summer feeding grounds on the continental shelf. The two halibuts show the same pattern of age and growth. They exhibit different trophic selectivity, as small Atlantic halibut consume a higher proportion of invertebrates as samll fish and large Atlantic halibut consume a higher proportion of fish, compared to Pacific halibut. Halibut management in the Atlantic and Pacific varies dramatically. Atlantic halibut in Canada were managed with other groundfish until 1988 and are not managed in the United States. Pacific halibut have been managed by an international commission under treaty between the United States and Canada since 1923. Atlantic halibut have produced from 1000 to 5000 t annually, mainly off Canada, while Pacific halibut have produced 12,000 to 45,000 t, mainly off Alaska. Biological and fishery data are collected more extensively for the Pacific halibut, for which detailed stock assessment is conducted.
Author: Robert J. Trumble
Publisher: NRC Research Press
ISBN: 9780660151113
Category : Nature
Languages : en
Pages : 106
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Book Description
Atlantic halibut and Pacific halibut off the Atlantic and Pacific coasts of North America share many biological characteristics. The conventional separation of the halibut into separate species is not uniformly accepted. Reproduction and early life history are nearly identical, although the extensive drift of Pacific halibut eggs and larvae and countermigration as juveniles have not been demonstrated for the Atlantic halibut. Adult halibut undergo migration from winter spawning grounds along the upper continental slope to summer feeding grounds on the continental shelf. The two halibuts show the same pattern of age and growth. They exhibit different trophic selectivity, as small Atlantic halibut consume a higher proportion of invertebrates as samll fish and large Atlantic halibut consume a higher proportion of fish, compared to Pacific halibut. Halibut management in the Atlantic and Pacific varies dramatically. Atlantic halibut in Canada were managed with other groundfish until 1988 and are not managed in the United States. Pacific halibut have been managed by an international commission under treaty between the United States and Canada since 1923. Atlantic halibut have produced from 1000 to 5000 t annually, mainly off Canada, while Pacific halibut have produced 12,000 to 45,000 t, mainly off Alaska. Biological and fishery data are collected more extensively for the Pacific halibut, for which detailed stock assessment is conducted.
Author:
Publisher:
ISBN:
Category : Fisheries
Languages : en
Pages : 466
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Book Description
Author: Robin N. Gibson
Publisher: John Wiley & Sons
ISBN: 1118501179
Category : Technology & Engineering
Languages : en
Pages : 577
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Book Description
Fascinating and instantly recognizable, flatfishes are unique in their asymmetric postlarval body form. With over 800 extant species recognized and a distribution stretching around the globe, these fishes are of considerable research interest and provide a major contribution to commercial and recreational fisheries worldwide. This second edition of Flatfishes: Biology and Exploitation has been completely revised, updated and enlarged to respond to the ever-growing body of research. It provides: • Overviews of systematics, distribution, life history strategies, reproduction, recruitment, ecology and behaviour • Descriptions of the major fisheries and their management • An assessment of the synergies between ecological and aquaculture research of flatfishes. Carefully compiled and edited by four internationally-known scientists and with chapters written by many world leaders in the field, this excellent new edition of a very popular and successful book is essential reading for fish biologists, fisheries scientists, marine biologists, aquaculture personnel, ecologists, environmental scientists, and government workers in fisheries and fish and wildlife departments. Flatfishes: Biology and Exploitation, Second Edition, should be found in all libraries of research establishments and universities where life sciences, fish biology, fisheries, aquaculture, marine sciences, oceanography, ecology and environmental sciences are studied and taught. Reviews of the First Edition • A solid, up-to-date book that advanced students and research scientists with interests in fish biology will find interesting and useful. Aquaculture International • A data-rich book that outlines much of what you might ever want to know about flatfishes. Fish & Fisheries • Well presented with clear illustrations and a valuable source of information for those with a general interest in fish ecology or for the more specialist reader. You should make sure that your library has a copy. J Fish Biology • An excellent and very practical overview of the whole, global flatfish scene. Anyone interested in flatfish at whichever stage of the economic food chain should invest in a copy immediately. Ausmarine • Because of the high quality of each chapter, written by international experts, it is a valuable reference. Reviews in Fish Biology and Fisheries
Author: T. E. McDonald
Publisher: NRC Research Press
ISBN: 9780660159027
Category : Nature
Languages : en
Pages : 276
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Book Description
Information on the parasites of Canadian fishes published between the years 1978 and 1993, inclusive, is assembled as Parasite-Host and Host-Parasite lists. The 925 named species of parasites are reported on 292 species of Canadian fishes. The Parasite-Host list is organized on a taxonomic basis and identifies for each species its habitat (freshwater, marine, or brackish), site of occurence in its host(s), species host(s), known geographic distribution within Canadian waters, and the published source for each host and localty record. The Host-Parasite list is organized according to the taxonomy of the hosts and is accompanied by data on the known Canadian distribution of the parasites. For both the Parasite-Host and Host-Parasite lists, a "Remarks" section containing explanatory comments concerning systematics, nomenclature, and notes on other specific items is included as warranted. In addition to listing the cited references, as supplentary list of references is included to cover other Canadian literature on fish parasites.
Author:
Publisher:
ISBN:
Category : Aquatic biology
Languages : en
Pages : 92
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Book Description
Author: Donald Wilbur Hood
Publisher:
ISBN:
Category : Marine resources
Languages : en
Pages : 648
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Book Description
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309173477
Category : Technology & Engineering
Languages : en
Pages : 436
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Book Description
Most U.S. fish stocks are fully or over-exploited, and harvesting in many fisheries far exceeds sustainable levels. The individual fishing quota (IFQ) is a relatively new instrument under which harvesting privileges are allocated to individual fishermenâ€"innovative yet controversial for its feared effect on fishing communities and individual fishermen. Based on testimony from fishermen, regulators, environmentalists, and others, Sharing the Fish explores how IFQs might address the serious social, economic, and biologic issues raised by depleted fish stocks. In their approach to a national policy on IFQs, the panel makes direct recommendations to Congress, the Secretary of Commerce, the National Marine Fisheries Service, regional fishery management councils, state authorities, and others. This book provides definitions and examples, reviews legislation and regulations, and includes lessons learned from fisheries on the U.S. East Coast and in Alaska, and in Iceland, New Zealand, and other nations. The committee discusses the public trust doctrine, management of common-pool resources, alternative and complementary approaches to the IFQ, and more. Sharing the Fish provides straightforward answers that will be important to fishery policymakers and regulators, natural resource economists, fishery managers, environmental advocates, and concerned fishermen and their communities.
Author:
Publisher:
ISBN:
Category : Aquatic sciences
Languages : en
Pages : 468
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Book Description
Author: United States. Congress
Publisher:
ISBN:
Category : Law
Languages : en
Pages : 1372
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Book Description
The Congressional Record is the official record of the proceedings and debates of the United States Congress. It is published daily when Congress is in session. The Congressional Record began publication in 1873. Debates for sessions prior to 1873 are recorded in The Debates and Proceedings in the Congress of the United States (1789-1824), the Register of Debates in Congress (1824-1837), and the Congressional Globe (1833-1873)
Author: F. Heward Bell
Publisher: Alaska Northwest Books
ISBN:
Category : Nature
Languages : en
Pages : 294
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Book Description
An encyclopedic documentary on the Pacific halibut and its fishery, including international agreements.
