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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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Renseignements sur la publication
Ministère/Organisme
  • Canada. Department of Fisheries and Oceans. Halifax Laboratory.
  • Canadian Atlantic Fisheries Scientific Advisory Committee.
TitreDistribution, 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 publicationMonographie - Voir l'enregistrement principal
Langue[Anglais]
FormatTexte numérique
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.
Description1 online resource (21 pages) : maps.
Numéro de catalogue
  • Fs70-8/86-56E-PDF
Descripteurs
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