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Stock Assessment For British Columbia Herring In 1992 And Forecasts Of The Potential Catch In 1993
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Book Synopsis Stock Assessment for British Columbia Herring in 1992 and Forecasts of the Potential Catch in 1993 by : Canada. Department of Fisheries and Oceans
Download or read book Stock Assessment for British Columbia Herring in 1992 and Forecasts of the Potential Catch in 1993 written by Canada. Department of Fisheries and Oceans and published by . This book was released on 1993 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Stock Assessment for British Columbia Herring in 1993 and Forecasts of the Potential Catch in 1994 by : J. F. Schweigert
Download or read book Stock Assessment for British Columbia Herring in 1993 and Forecasts of the Potential Catch in 1994 written by J. F. Schweigert and published by . This book was released on 1994 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Stock Assessment for British Columbia Herring in 1991 and Forecasts of the Potential Catch in 1992 by : Vivian Haist
Download or read book Stock Assessment for British Columbia Herring in 1991 and Forecasts of the Potential Catch in 1992 written by Vivian Haist and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Stock Assessments for British Columbia Herring in 1991 and Forecasts of the Potential Catch in 1992 by :
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 Synopsis Climate Change and Northern Fish Populations by : National Research Council Canada
Download or read book Climate Change and Northern Fish Populations written by National Research Council Canada and published by NRC Research Press. This book was released on 1995 with total page 756 pages. Available in PDF, EPUB and Kindle. Book excerpt: These documents summarize some of the recent studies of the relationships among climate, the aquatic environment, and the dynamics of fish populations. The studies are mostly from the North Pacific ocean, but there are reports of investigations from the North Atlatic Ocean and from fresh water. Various papers include numerous examples of the relationships between fish abundance trends and the environment.
Book Synopsis Stock Assessments for British Columbia Herring in 1993 and Forecasts of the Potential Catch in 1994 by : J. F. Schweigert
Download or read book Stock Assessments for British Columbia Herring in 1993 and Forecasts of the Potential Catch in 1994 written by J. F. Schweigert and published by . This book was released on 1994 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Oceanic Abstracts written by and published by . This book was released on 1996 with total page 802 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Stock Assessment for British Columbia Herring in 1997 and Forecasts of the Potential Catch in 1998 by : Canada. Department of Fisheries and Oceans
Download or read book Stock Assessment for British Columbia Herring in 1997 and Forecasts of the Potential Catch in 1998 written by Canada. Department of Fisheries and Oceans and published by . This book was released on 1998 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Stock Assessment for British Columbia Herring in 1999 and Forecasts of the Potential Catch in 2000 by : J. F. Schweigert
Download or read book Stock Assessment for British Columbia Herring in 1999 and Forecasts of the Potential Catch in 2000 written by J. F. Schweigert and published by . This book was released on 1999 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Stock Assessment for British Columbia Herring in 1996 and Forecasts of the Potential Catch in 1997 by :
Download or read book Stock Assessment for British Columbia Herring in 1996 and Forecasts of the Potential Catch in 1997 written by and published by . This book was released on 1997 with total page 73 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 from 1951 to last year and forecast pre-spawning abundance for the coming year. 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 Synopsis Stock Assessment of British Columbia Herring in 1998 and Forecasts of the Potential Catch in 1999 by : J. F. Schweigert
Download or read book Stock Assessment of British Columbia Herring in 1998 and Forecasts of the Potential Catch in 1999 written by J. F. Schweigert and published by . This book was released on 1999 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Stock Assessment for British Columbia Herring in 2002 and Forecasts of the Potential Catch in 2003 by : J. F. Schweigert
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.
Book Synopsis Stock Assessment for British Columbia Herring in 1994 and Forecasts of the Potential Catch in 1995 by : J. F. Schweigert
Download or read book Stock Assessment for British Columbia Herring in 1994 and Forecasts of the Potential Catch in 1995 written by J. F. Schweigert and published by . This book was released on 1995 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Herring stock abundance in British Columbia water was assessed for 1994 and forecasts were made for 1995 using two analytical methods: (1) escapement model; and (2) age-structure model."--Page vi.
Book Synopsis Aquatic Sciences and Fisheries Abstracts by :
Download or read book Aquatic Sciences and Fisheries Abstracts written by and published by . This book was released on 1996 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Stock Assessment for British Columbia Herring in 1995 and Forecasts of the Potential Catch in 1996 by :
Download or read book Stock Assessment for British Columbia Herring in 1995 and Forecasts of the Potential Catch in 1996 written by and published by . This book was released on 1996 with total page 66 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 from 1951 to last year and forecast pre-spawning abundance for the coming year. 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 Synopsis Stock Assessments for British Columbia Herring in 1990 and Forecasts of the Potential Catch in 1991 by : V. Haist
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 Synopsis Stock Assessment for British Columbia Herring in 2004 and Forecasts of the Potential Catch in 2005 by : J. Schweigert
Download or read book Stock Assessment for British Columbia Herring in 2004 and Forecasts of the Potential Catch in 2005 written by J. Schweigert and published by . This book was released on 2004 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt:
