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An anomalous Pacific cod fishery in Juan de Fuca Strait / by S.J. Westrheim and M.G. Pedersen. : Fs97-4/1891E-PDF

"During 1974-84, Canadian landings of Pacific cod (Gadus macrocephalus) from eastern Juan de Fuca Strait (MSA 19) rose precipitously to a peak of 957 t in 1981, then declined equally sharply to approximately 131 t in 1985. Prior to 1974, Pacific cod was also the principal species landed, but its annual landings rarely exceeded 100 t. Tagging experiments, landing statistics, age-frequencies, gonad condition, diet, and herring distribution were employed to explain, if possible, the anomalous cod aggregation and resulting fishery. The authors concluded that the anomalous cod aggregation in MSA 19 originated from offshore grounds, and that cod were attracted to MSA19 by an anomalous aggregation of herring inbound to spawn in Georgia Strait"--Abstract, page iii.

Lien permanent pour cette publication :
publications.gc.ca/pub?id=9.952789&sl=1

Renseignements sur la publication
Ministère/Organisme
  • Canada. Department of Fisheries and Oceans, issuing body.
  • Pacific Biological Station (1972- ), issuing body.
TitreAn anomalous Pacific cod fishery in Juan de Fuca Strait / by S.J. Westrheim and M.G. Pedersen.
Titre de la série
  • Canadian manuscript report of fisheries and aquatic sciences, 0706-6473 ; no. 1891
Type de publicationMonographie - Voir l'enregistrement principal
Langue[Anglais]
FormatTexte numérique
Document électronique
Note(s)
  • Digitized edition from print [produced by Department of Fisheries and Oceans].
  • Includes bibliographical references (pages 11-14).
  • Includes abstracts in English and French.
Information sur la publication
  • Nanaimo, British Columbia : Department of Fisheries and Oceans, Fisheries Research Branch, Pacific Biological Station, July 1986.
  • ©1986
Auteur / Contributeur
  • Westrheim, S. J., author.
Description1 online resource (iii, 55 pages) : illustrations, maps.
Numéro de catalogue
  • Fs97-4/1891E-PDF
Descripteurs
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