Advances in Marine Biology
Advances in Marine Biology

Author:

Publisher: Academic Press

Published: 1999-09-17

Total Pages: 287

ISBN-13: 0080579604

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Walleye Pollock is one of the world's largest fisheries. In this volume, the first review describes the population biology of walleye Pollock including its life history, population dynamics, genetic structure, and metapopulation structure. The second review discusses pollutants and the marine environment using ecotoxicological bioassays with bivalve embryos and larvae. These tests ascertain the effects of pure chemicals and determine the quality of effluents, coastal waters, and sediments sampled in the field.Advances in Marine Biology has always offered marine biologists an in-depth and up-to-date review on a variety of topics. As well as many volumes that provide a selection of important topics, the series also includes thematic volumes that examine a particular field in detail.

Decline of the Steller Sea Lion in Alaskan Waters
Decline of the Steller Sea Lion in Alaskan Waters

Author: National Research Council

Publisher: National Academies Press

Published: 2003-04-04

Total Pages: 216

ISBN-13: 0309168724

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For an unknown reason, the Steller sea lion population in Alaska has declined by 80% over the past three decades. In 2001, the National Research Council began a study to assess the many hypotheses proposed to explain the sea lion decline including insufficient food due to fishing or the late 1970s climate/regime shift, a disease epidemic, pollution, illegal shooting, subsistence harvest, and predation by killer whales or sharks. The report's analysis indicates that the population decline cannot be explained only by a decreased availability of food; hence other factors, such as predation and illegal shooting, deserve further study. The report recommends a management strategy that could help determine the impact of fisheries on sea lion survival-establishing open and closed fishing areas around sea lion rookeries. This strategy would allow researchers to study sea lions in relatively controlled, contrasting environments. Experimental area closures will help fill some short-term data gaps, but long-term monitoring will be required to understand why sea lions are at a fraction of their former abundance.

Alaska Codfish Chronicle
Alaska Codfish Chronicle

Author: James Mackovjak

Publisher: University of Alaska Press

Published: 2019-08-15

Total Pages: 575

ISBN-13: 1602233896

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Cod is one of the most widely consumed fish in the world. For many years, the Atlantic cod industry took center stage, but partly thanks to climate change and overfishing, it is more and more likely that the cod on your kitchen table or in your fast food fish fillets came from Alaska’s Pacific Cod Fishery. Alaska Codfish Chronicle is the first comprehensive history of this fishery. It looks at the early decades of the fishery’s history, a period marked by hardship and danger, as well as the dominance of foreign fishermen. And the modern era, beginning in 1976 when the United States claimed an exclusive economic zone around the Alaska coasts, “Americanizing” the fishery and replacing the foreign fleets that had been ravaging the resources in the Gulf of Alaska and the Bering Sea. Today, the Pacific cod fishery is, in terms of poundage, the second largest fishery in Alaska, and considered among the best-managed fisheries in the world. This history is extremely well documented, does not spare details, and is accessible to general readers. It incorporates nearly a hundred photographs and illustrations and is sprinkled with numerous observations from fishing industry journals and reports, even incorporating poems and recipes, making this an especially thorough and unique account of one of Alaska’s most iconic and important industries.