Temporal trends in condition, gonado somatic index and maturity stages of Atlantic cod (Gadus morhua) from northern Placentia Bay (Subdivision 3Ps), Newfoundland, during 1998 / by A.D. Bolon and D.C.... : Fs70-1/1999-45E-PDF
Reports of Atlantic cod (Gadus morhua) in spawning condition in Placetia Bay, Newfoundland, are not new. However, most of this data is not based on seasonal sampling, consequently, the duration and timeing of spawning can not be determined from such data. In the Newfoundland region, cod maturities are based on visual examinations of the gonads. As the cod are batch spawners, their accurate classification into maturity categories is visually difficult and could be improved by the use of histological analysis on gonads. The first objective of this study is to determine whether the classification of fish in spawning stage could be improved through hitological procedure. The second objective is to describe the seasonal trends in maturity, condition, and gonado-somatic index of cod sampled in northern Placentia Bay during 1998.
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| Ministère/Organisme | Canada. Department of Fisheries and Oceans. Canada. Canadian Stock Assessment Secretariat. |
|---|---|
| Titre | Temporal trends in condition, gonado somatic index and maturity stages of Atlantic cod (Gadus morhua) from northern Placentia Bay (Subdivision 3Ps), Newfoundland, during 1998 / by A.D. Bolon and D.C. Schneider. |
| Titre de la série | Canadian Stock Assessment Secretariat research document, 1480-4883 ; 99/45 |
| Type de publication | Série - Voir l'enregistrement principal |
| Langue | [Anglais] |
| Format | Électronique |
| Document électronique | |
| Note(s) | Includes bibliographical references (p. 6-7). |
| Information sur la publication | Ottawa : Fisheries and Oceans Canada, 1999. |
| Auteur / Contributeur | Bolon, A. D. Schneider, David C. |
| Description | 23 p. : fig., graphs, maps, tables. |
| Numéro de catalogue |
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| Descripteurs | Fisheries resources Salt water fish Fishing area Fisheries management |