Expected Changes in Stock Recruitment Parameters When Exploiting Mixed Stocks of Salmon

Hilborn R (1975). Expected Changes in Stock Recruitment Parameters When Exploiting Mixed Stocks of Salmon. IIASA Research Memorandum. IIASA, Laxenburg, Austria: RM-75-046

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Abstract

The parameters for a Ricker stock recruitment relationship can change due to a number of factors. Methods for distinguishing between habitat elimination, lowered brood success, and elimination of less productive substocks are discussed. Data for the Columbia River Fall Chinook, and Skeena River Sockeye are analyzed in light of these considerations. It is also shown that the expected changes in productivities are strongly affected by the correlation of productivities of the different substocks. The importance of the above factors are discussed in relation to proposed enhancement facilities.

Item Type: Monograph (IIASA Research Memorandum)
Research Programs: Resources and Environment Area (REN)
Depositing User: IIASA Import
Date Deposited: 15 Jan 2016 01:42
Last Modified: 22 Jul 2016 23:40
URI: http://pure.iiasa.ac.at/470

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