Review of hydroacoustic methodology and Pacific hake biomass estimates for the Strait of Georgia, 1981 to 1998 / R. Kieser, M.W. Saunders and K. Cooke. : Fs70-1/1999-15E-PDF
The purpose of this paper is 1) to make available to assessment scientists a review of the methods used in six acoustic surveys that were completed between 1981 to 1998 to estimate Pacific hake (Merluccius productus) abundance in the Strait of Georgia and 2) to provide a time series of hake biomass standardised to a single target strength value. This includes a description of the evolution of the acoustic system, data collection, analysis, presentation techniques and sources of uncertainty unique to each survey. A method for calculating biomass based on target strength length relation is presented and biomass estimates from all surveys are given. Calibration, target strength and survey data are statistically examined to obtain a representative confidence interval that can be used as a guide for all surveys.
Lien permanent pour cette publication :
publications.gc.ca/pub?id=9.804801&sl=1
| Ministère/Organisme | Canada. Department of Fisheries and Oceans. Canada. Canadian Stock Assessment Secretariat. |
|---|---|
| Titre | Review of hydroacoustic methodology and Pacific hake biomass estimates for the Strait of Georgia, 1981 to 1998 / R. Kieser, M.W. Saunders and K. Cooke. |
| Titre de la série | Canadian Stock Assessment Secretariat research document, 1480-4883 ; 99/15 |
| Type de publication | Série - Voir l'enregistrement principal |
| Langue | [Anglais] |
| Format | Électronique |
| Document électronique | |
| Note(s) | Includes bibliographical references (p. 20-23). |
| Information sur la publication | Ottawa : Fisheries and Oceans Canada, 1999. |
| Auteur / Contributeur | Kieser, R. Saunders, M. W. Cooke, K. D. |
| Description | 53 p. : fig., graphs, maps, tables. |
| Numéro de catalogue |
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| Descripteurs | Fisheries resources Salt water fish Fishing area Fisheries management |
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