1979 assessment of cod in divisions 4T and 4Vn (Jan-Apr) / by David F. Gray. : Fs70-8/79-21E-PDF
"Catches from this stock reached an all time recorded high of 110 thousand t in 1956 apparently as a result of the reaction of the cod biomass to the destruction of pelagic stock biomass by epizootic disease. From that point catches declined to 41 thousand t in 1967. However reported catches then climbed to about 60 thousand t per year in the early 1970's primarily due to an increase in interest in the 4Vn winter fishery by foreign countries and large Canadian otter trawlers. With dropping catch rates and decline in numbers estimated from research tows, there was an indication that the population was being exploited at fishing mortalities above sustainable levels"--Introduction.
Lien permanent pour cette publication :
publications.gc.ca/pub?id=9.879379&sl=1
| Ministère/Organisme | Canada. Department of Fisheries and Oceans. Canada. Dept. of Fisheries and Oceans. Scotia-Fundy Region. Marine Fish Division. |
|---|---|
| Titre | 1979 assessment of cod in divisions 4T and 4Vn (Jan-Apr) / by David F. Gray. |
| Titre de la série | CAFSAC research document ; 79/21 |
| Type de publication | Série - Voir l'enregistrement principal |
| Langue | [Anglais] |
| Format | Électronique |
| Document électronique | |
| Note(s) | "Not to be cited without permission of author." Includes bibliographical references (page 5). |
| Information sur la publication | Dartmouth, Nova Scotia : Marine Fish Division, Fisheries & Oceans Canada, Bedford Institute of Oceanography, [1979] |
| Auteur / Contributeur | Gray, David F., author. |
| Description | 1 online resource (28 pages) : charts. |
| Numéro de catalogue |
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| Descripteurs | Fisheries |