Information in support of recovery potential assessment for White Hake (Urophycis tenuis) from the Scotian Shelf (NAFO Divs. 4VWX5z) / Sylvie Guénette and Donald Clark. : Fs70-5/2016-100E-PDF
"The Northwest Atlantic Fisheries Organization (NAFO) Divs. 4VWX5Zc White Hake (Urophycis tenuis) population has significantly decreased in abundance since 1982 in spite of low fishing mortality. In NAFO Div. 4X5Zc, juveniles declined by 38% per decade since 1991 and adults by 46% per decade during 1982-2004 after which the abundance remained stable. Total instantaneous mortality is currently estimated at 1.03 for adults, while relative fishing mortality has declined since the 1970s and is currently estimated at 0.09 per year. The abundance is currently just above the proposed biomass recovery target while the proportion of older mature fish in the population is low (6% in 2013). At the current mortality rate, the Spawning Stock Biomass (SSB) has an 84% probability of remaining above the recovery target. Removing fishing mortality from the model does not result in any detectable changes in population trends."--Abstract, p. iv.
Lien permanent pour cette publication :
publications.gc.ca/pub?id=9.829196&sl=1
| Ministère/Organisme | Canada. Department of Fisheries and Oceans. Canada. Ecosystems and Oceans Science. Canadian Science Advisory Secretariat. |
|---|---|
| Titre | Information in support of recovery potential assessment for White Hake (Urophycis tenuis) from the Scotian Shelf (NAFO Divs. 4VWX5z) / Sylvie Guénette and Donald Clark. |
| Variante du titre | Title at head of French abstract: Information à l’appui de l’évaluation du potentiel de rétablissement de la population de merluche blanche (Urophycis tenuis) du plateau néo-écossais (division 4VWX5z de l’OPANO) |
| Titre de la série | Canadian Science Advisory Secretariat research document, 1919-5044 ; 2016/100, Maritimes Region |
| Type de publication | Série - Voir l'enregistrement principal |
| Langue | [Anglais] |
| Format | Électronique |
| Document électronique | |
| Note(s) | Cover title. “December 2016.” Includes bibliographical references (p. 8-9). Includes abstract in French. |
| Information sur la publication | Ottawa : Fisheries and Oceans Canada, Canadian Science Advisory Secretariat, 2016. |
| Auteur / Contributeur | Guénette, Sylvie, 1957- Clark, Donald Stuart, 1961- |
| Description | v, 38 p. : graphs |
| Numéro de catalogue |
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| Descripteurs | Fish Fisheries management |