Coho Salmon (Oncorhynchus Kisutch) Escapement Studies in Black Creek, French Creek, and Trent River, Vancouver Island, 1989 PDF Download
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Author: Robert Charles Bocking
Publisher:
ISBN:
Category : Coho salmon
Languages : en
Pages : 77
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Book Description
Author: Robert Charles Bocking
Publisher:
ISBN:
Category : Coho salmon
Languages : en
Pages : 77
Get Book Here
Book Description
Author: Robert Charles Bocking
Publisher:
ISBN:
Category : Coho salmon
Languages : en
Pages : 77
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 77
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Book Description
Each fall since 1985, counting fences have been located at Black Creek, French Creek and the Trent River to estimate coho escapement as part of a program to intensively study a few streams to determine if one coho stock in a defined geographical area may be used as an indicator stock for nearby stream populations. Mark-recapture studies were also carried out annually to provide a second escapement estimate. In the spring of each year, on each of the three systems, migrating coho smolts were counted and code wire tagged at smolt enumeration fences. This report summarizes the fence count and upstream mark-recapture escapement enumeration studies during 1989.
Author: Robert Charles Bocking
Publisher:
ISBN:
Category : Coho salmon
Languages : en
Pages : 0
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Author:
Publisher:
ISBN:
Category : Fisheries
Languages : en
Pages : 274
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Book Description
Author:
Publisher:
ISBN:
Category : Fisheries
Languages : en
Pages : 48
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 148
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An investigation was initiated on Vancouver Island in 1984 to determine the degree of similarity in biological and exploitation patterns between populations of coho salmon. This report describes the various field investigations, estimation procedures and results obtained at Black Creek, Trent River and French Creek from 1984-88. Juvenile trapping operations were conducted at each site from 1985-87, with actual counts and estimates of total smolt output from each stream given, as well as information on outmigration pattern, age structure, demographic traits, fry survival and the degree of similarity between populations. Adult enumeration was conducted at each location and mark-recapture programs were conducted in all streams to estimate total escapement. Abundance estimates were generated from a sequential Bayesian algorithm developed for closed populations, and from an open population model described in this report. Estimates from both models are compared. Coded wire tag recovery was conducted at each location to determine the stream of origin, and estimate exploitation rates. The current productivity status of each stock is discussed.
![A Comparative Study of Coho Salmon Populations of S.E. Vancouver Island, British Columbia : Juvenile Outmigration, Coded-wire Tagging and Recovery, Escapement Enumeration, and Stock Composition at Black Creek, Trent River and French Creek, 1984-1988 [microform] PDF](https://books.google.com/books/content/images/frontcover/zGFlnQEACAAJ?fife=w80-h100)
Author: Marc Labelle
Publisher: Nanaimo, B.C. : Department of Fisheries and Oceans, Biological Sciences Branch, Pacific Biological Station
ISBN:
Category : Coho salmon.
Languages : en
Pages : 148
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Author: Marc Labelle
Publisher:
ISBN:
Category :
Languages : en
Pages : 148
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Book Description
Author: B. L. Nass
Publisher:
ISBN:
Category :
Languages : en
Pages :
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