An assessment of the Gulf of St. Lawrence herring stock complex / by L. Cleary. : Fs70-8/81-23E-PDF
"Landings from the 4T herring stock declined from 270 000 t in 1970 to 40 500 t in 1980. Recently, the fishery has been sustained mainly by the 1974 year-class. The catch matrix shows a decreasing trend in the proportion of mature fish in the catch (6 years old: 91% in 1969, 22% in 1980), while no particularly strong recruitment is obvious since the 1974 year-class entered the fishery. An analysis of the catch rate data reveals that for both the commercial inshore and offshore fishery and groundfish research cruises catch rates are at a historical low, except for the Pictou Island fall gillnet fishery"--Abstract.
Lien permanent pour cette publication :
publications.gc.ca/pub?id=9.875015&sl=1
| Ministère/Organisme | Canada. Department of Fisheries and Oceans. |
|---|---|
| Titre | An assessment of the Gulf of St. Lawrence herring stock complex / by L. Cleary. |
| Titre de la série | CAFSAC research document ; 81/23 |
| Type de publication | Série - Voir l'enregistrement principal |
| Langue | [Anglais] |
| Format | Électronique |
| Document électronique | |
| Note(s) | Digitized edition from print [produced by Department of Fisheries and Oceans]. "Not to be cited without permission of the author." Includes bibliographical references. Includes abstract in French. |
| Information sur la publication | Cap Diamant, Québec : Direction de la recherche sur les pêches, [1981] |
| Auteur / Contributeur | Cleary, Lynn. |
| Description | 1 online resource (34 pages) : illustrations, map. |
| Numéro de catalogue |
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| Descripteurs | Fisheries Surveys |