Distribution, abundance, and preliminary estimates of production potential for the ocean quahaug (Arctica islandica) and Stimpson's surf clam (Spisula polynyma) on the Scotian Shelf / by T.W. Rowell and... : Fs70-8/86-56E-PDF
"Both the ocean quahaug (Arctica islandica) and Stimpson's surf clam (Spisula polynyma) resources of the Scotian Shelf appear to have potential for future exploitation. Six areas, totalling 2,452 km 2 , on Western and Sable Island Banks had a mean quahaug density of 0.256 kg/m 2 and a biomass on the order of 628 kilotons. Additionally, two areas, totalling 2,298 km 2 , on Banquereau Bank had a mean surf clam density of 0.244 kg/m 2 and a biomass on the order of 561 kilotons. Mean densities of ocean quahaugs and Stimpson's surf clams on the remaining areas of these banks were 0.042 and 0.034 kg/m 2 respectively and unlikely to support commercial activity. Using instantaneous natural mortality (M) rates of 0.020 and 0.043 for ocean quahaugs, a MSY of between 6,277--13,495 t was derived. For Stimpson's surf clam a MSY of 16,821 t was derived using M= 0.060"--Abstract.
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| Ministère/Organisme | Canada. Department of Fisheries and Oceans. Halifax Laboratory. Canadian Atlantic Fisheries Scientific Advisory Committee. |
|---|---|
| Titre | Distribution, abundance, and preliminary estimates of production potential for the ocean quahaug (Arctica islandica) and Stimpson's surf clam (Spisula polynyma) on the Scotian Shelf / by T.W. Rowell and T. Amaratunga. |
| Titre de la série | CAFSAC research document ; 86/56 |
| Type de publication | Série - Voir l'enregistrement principal |
| Langue | [Anglais] |
| Format | Électronique |
| Document électronique | |
| Note(s) | "Not to be cited without permission of the authors." Includes bibliographical references (pages 10-11). Includes abstract in French. |
| Information sur la publication | Halifax, Nova Scotia : Fisheries Research Branch, Halifax Fisheries Research Laboratory, Department of Fisheries and Oceans, Scotia-Fundy Region, [1986] |
| Auteur / Contributeur | Rowell, T. W., author. |
| Description | 1 online resource (21 pages) : maps. |
| Numéro de catalogue |
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| Descripteurs | Ocean quahog -- Scotian Shelf. Arctic surfclam -- Scotian Shelf. Quahog nordique -- Néo-écossaise, Plateforme. Mactre de Stimpson -- Néo-écossaise, Plateforme. |
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