Relative strength of the 1999 year-class, from nearshore surveys of demersal age 0 Atlantic cod in 3KL and in Newman Sound, Bonavista Bay / Robert S. Gregory … [et al.]. : Fs70-1/2000-094E-PDF
This study is a qualitative assessment of the relative strength of the 1999 year-class based on abundance of demersal age 0 and age 1 Atlantic cod in the nearshore in Newman Sound, Bonavista Bay in summer and fall 1999. Abundances of age 0 and age 1 Atlantic cod in Newman Sound were compared to previous years (1995,1996, and 1998), linking interannual abundance trends between the Newman Sound data to those demonstrated in the Fleming surveys (1992-97). Interannual trends between the Newman Sound data and the larger scale Fleming survey are shown to be consistent. This consistency leads to two conclusions: first, the 1998 and 1999 year-classes were relatively stronger than the 1995 and 1996 year-classes; and second, the strong 1997 year-class predicted as a result of the Fleming survey was supported. Evidence is presented that links age 0 abundance to temporal recruitment patterns within years. This study suggests that in years of relatively higher recruitment, settlement occurs in more than one recruitment pulse several weeks apart; in years of relatively poor recruitment, recruitment is often limited to a single pulse.
Lien permanent pour cette publication :
publications.gc.ca/pub?id=9.805975&sl=1
| Ministère/Organisme | Canada. Department of Fisheries and Oceans. Canada. Canadian Stock Assessment Secretariat. |
|---|---|
| Titre | Relative strength of the 1999 year-class, from nearshore surveys of demersal age 0 Atlantic cod in 3KL and in Newman Sound, Bonavista Bay / Robert S. Gregory … [et al.]. |
| Titre de la série | Canadian Stock Assessment Secretariat research document, 1480-4883 ; 2000/094 |
| Type de publication | Série - Voir l'enregistrement principal |
| Langue | [Anglais] |
| Format | Électronique |
| Document électronique | |
| Note(s) | Includes bibliographical references (p. 7-8). |
| Information sur la publication | Ottawa : Fisheries and Oceans Canada, 2000. |
| Auteur / Contributeur | Gregory, Robert S. |
| Description | 17 p. : fig., graphs, maps. |
| Numéro de catalogue |
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| Descripteurs | Fisheries resources Salt water fish Fishing area Fisheries management |
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