Distribution and abundance of juvenile salmon in Discovery Harbour Marina and surrounding area, Campbell River, B.C., during 1996 [electronic resource] / B.A. Bravender, S.S. Anderson, and J. Van Tine.
- Physical Description: 1 online resource (viii, 45 p.) : ill., map
- Publisher: Nanaimo, B.C. : Fisheries and Oceans Canada, Science Branch, Pacific Region, 1999.
|Bibliography, etc. Note:|| Includes bibliographical references.
|Summary, etc.:|| Chinook salmon stocks in the Campbell River system have declined since the late 1980s, and the construction of the Discovery Harbour Marina in 1988 has been suggested as one possible cause. This report describes a 1996 field survey conducted to ascertain the distribution, abundance, and condition of the juvenile salmonids present in the Campbell River estuary, Discovery Harbour Marina, and nearshore areas outside the marina. The report begins with an overview of the river area's fishery resources, the construction of the marina, previous fishery research in the area, and the importance of eelgrass as fish habitat. It then describes the survey methods used, which focused on the possible entrapment of juvenile salmon within the marina basin, disruption of normal migration patterns by the barrier presented by the marina breakwater, reduction in fitness due to decreased food sources, and increased susceptibility to predation. The survey included sampling of juvenile salmon and visual dive surveys with particular attention to the distribution and abundance of eelgrass. Finally, results are presented and discussed.
|Language Note:|| English with French summary.
|Issuing Body Note:|| Issued by: Pacific Biological Station.
Search for related items by subject
|Subject:||Pacific salmon > Habitat.
Fish populations > British Columbia > Campbell River.
Salmon > Counting > British Columbia > Campbell River.
Habitat (Ecology) > British Columbia > Campbell River.
Marinas > Environmental aspect.