Assessment of herring spawnings in the vicinity of Nanoose Bay, B.C. / by C.W. Haegele and R.D. Humphreys. : Fs97-4/1437E-PDF ; Fs97-4/1437

"An intensive underwater survey of two herring spawnings in and near Nanoose Bay, Strait of Georgia, was conducted during the 1976 herring spawning season. The spawnings were up to 650-m wide and eggs were deposited on a wide variety of substrates. An assessment of the spawnings by traditional techniques underestimated the area of the spawnings by 41% and 96%, mainly as a result of low width estimates of the subtidal portion of the spawn. Detailed topographic maps of spawning localities showing vegetation zones should alleviate problems associated with detecting and measuring herring spawn"--Abstract, page iii.

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Renseignements sur la publication
Ministère/Organisme Canada. Fisheries and Marine Service, issuing body.
Pacific Biological Station (1972- ), issuing body.
Titre Assessment of herring spawnings in the vicinity of Nanoose Bay, B.C. / by C.W. Haegele and R.D. Humphreys.
Titre de la série Fisheries and Marine Service manuscript report, 0701-7618 ; 1437
Type de publication Série - Voir l'enregistrement principal
Langue [Anglais]
Format Électronique
Document électronique
Note(s) Digitized edition from print [produced by Department of Fisheries and Oceans].
Includes bibliographical references (pages 6-7).
Includes abstracts in English and French.
Information sur la publication Nanaimo, British Columbia : Pacific Biological Station, Fisheries and Marine Service, Department of Fisheries and the Environment, October 1977.
©1977
Auteur / Contributeur Haegele, C. W., author.
Description 1 online resource (iii, 37 pages) : illustrations, maps.
Numéro de catalogue
  • Fs97-4/1437E-PDF
  • Fs97-4/1437
Descripteurs Pacific herring -- Spawning -- British Columbia -- Vancouver Island.
Vegetation mapping -- British Columbia -- Vancouver Island.
Hareng du Pacifique -- Frai -- Colombie-Britannique -- Vancouver, Île de.
Cartographie de la végétation -- Colombie-Britannique -- Vancouver, Île de.
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