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EBookClubs

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Book Preliminary Forecasts of Catch and Abundance for Bering Sea Herring Stocks in 1991

Download or read book Preliminary Forecasts of Catch and Abundance for Bering Sea Herring Stocks in 1991 written by Alaska. Division of Commercial Fisheries and published by . This book was released on 1990 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Preliminary Forecasts of Catch and Stock Abundance for 1990

Download or read book Preliminary Forecasts of Catch and Stock Abundance for 1990 written by Fritz Funk and published by . This book was released on 1990 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Pacific Herring Stocks and Fisheries in the Eastern Bering Sea  Preliminary Report for 1981

Download or read book Pacific Herring Stocks and Fisheries in the Eastern Bering Sea Preliminary Report for 1981 written by Bering Sea Herring Program and published by . This book was released on 1981 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes current information on eastern Bering Sea Pacific herring stocks and fisheries within Alaskan waters. Statistics for 1978-1981 are given for biomass, harvest, roe, percent of biomass harvested, numbers of buyers and fishermen, harvest of herring roe-on-kelp, relative abundance of herring, and herring biomass estimates. More detailed biomass estimates are given for 1981.

Book Alaska Fishery Research Bulletin

Download or read book Alaska Fishery Research Bulletin written by and published by . This book was released on 1997 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Alaska Herring History

    Book Details:
  • Author : James Mackovjak
  • Publisher : University of Alaska Press
  • Release : 2022-07-18
  • ISBN : 1646423445
  • Pages : 414 pages

Download or read book Alaska Herring History written by James Mackovjak and published by University of Alaska Press. This book was released on 2022-07-18 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: Alaska Herring History is a thoroughly researched, well-documented, and comprehensive chronicle of Alaska’s herring fisheries. Author James Mackovjak describes the evolution of these fisheries from the late nineteenth century to the present, including harvest, processing, markets, and sustained-yield management considerations. The book is divided into three parts based on the purposes for which herring have been harvested. Part I is a history of the reduction (fertilizer/fish meal/fish oil) and cured (salted) herring industries and the bait-herring fisheries; part II is a history of the roe-herring fisheries in Southeast Alaska, Prince William Sound, Kodiak Island, lower Cook Inlet, Togiak, and Norton Sound; and part III is a history of the herring spawn-on-kelp industry. Historical and contemporary photos and illustrations—as well as graphs and charts that help summarize the development and, in some cases, the demise of the fisheries—augment this detailed look at the evolution of Alaska's herring fisheries. Balancing scientific details, historical facts, and personal anecdotes from experts in the field, Alaska Herring History will be of interest to historians, social scientists, biologists, and fishery managers and makes an important contribution to Alaska fisheries literature.

Book Stock Assessments for British Columbia Herring in 1991 and Forecasts of the Potential Catch in 1992

Download or read book Stock Assessments for British Columbia Herring in 1991 and Forecasts of the Potential Catch in 1992 written by and published by . This book was released on 1992 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: Herring are an important component of the British Columbia commercial fishery with catch records dating from 1877. Since 1983, herring fisheries have been managed with a fixed quota system in which catch levels are determined prior to the season based on a fixed percentage of forecast stock abundance. This report presents stock assessments from escapement and age-structured analytical models that were developed explicitly for B.C. herring. Both models reconstruct stock abundance for 1951-91 and forecast pre-spawning abundance for 1992. Forecasts of recruit spawners are presented as poor, average and good, based on historical recruitment levels. The report does not discuss the development and evaluation of empirical models for forecasting recruitment.

Book Stock Assessments for British Columbia Herring in 1990 and Forecasts of the Potential Catch in 1991

Download or read book Stock Assessments for British Columbia Herring in 1990 and Forecasts of the Potential Catch in 1991 written by V. Haist and published by . This book was released on 1991 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents stock assessments from an escapement model and an age-structured model developed specifically for B.C. herring. Both models reconstruct stock abundance for 1951-90 and forecast pre-spawning abundance for the 1991 season. Forecasts of recruit spawners are presented as poor, average, and good based on historically observed means.

Book Canadian Journal of Fisheries and Aquatic Sciences

Download or read book Canadian Journal of Fisheries and Aquatic Sciences written by and published by . This book was released on 2007 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Preliminary Summary of 1990 Bering Sea Herring Stock Status

Download or read book Preliminary Summary of 1990 Bering Sea Herring Stock Status written by Alaska. Division of Commercial Fisheries and published by . This book was released on 1990 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Stock Assessment for British Columbia Herring in 2002 and Forecasts of the Potential Catch in 2003

Download or read book Stock Assessment for British Columbia Herring in 2002 and Forecasts of the Potential Catch in 2003 written by J. F. Schweigert and published by . This book was released on 2002 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this study, herring stock abundance in British Columbia waters was assessed for 2002 and forecasts were made for 2003 using two analytical methods, an age-structured model for the major stock assessment regions and an escapement model for the minor stocks. These models have been applied to assess herring abundance since 1984 and changes were introduced to account for temporal change in the spawn index. All available biological data on total harvest, spawn deposition, and age & size composition of the spawning runs were used to determine current abundance levels. Forecasts of the pre-fishery spawning stock biomass are presented for both models.