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Final results of the September 1979 Dover sole tagging experiment in northern Hecate Strait, 1979-1999

Author: J Fargo; S J Westrheim; Pacific Biological Station.
Publisher: Nanaimo, B.C. : Fisheries and Oceans Canada, Science Branch, Pacific Region, Pacific Biological Station, ©2007.
Series: Canadian manuscript report of fisheries and aquatic sciences, 2813.
Edition/Format:   Book : National government publication : EnglishView all editions and formats
Database:WorldCat
Summary:
During September 21-26, 1979, 5146 Dover sole were tagged and released at two locations in Area 5D (Figure 1). Recovery results through 1984 were published in Fargo et al. (1985). We analyzed the final recovery information for the tagging through 1999. Time at liberty was 20 years for the last recovery, and 15 recoveries were at liberty at least 10 years. During 1979-99 recovery rates were not significantly  Read more...
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Details

Material Type: Government publication, National government publication
Document Type: Book
All Authors / Contributors: J Fargo; S J Westrheim; Pacific Biological Station.
OCLC Number: 192029354
Language Note: Abstract in English and French.
Description: iv, 30 p. : ill. ; 28 cm.
Series Title: Canadian manuscript report of fisheries and aquatic sciences, 2813.
Responsibility: by J. Fargo and S.J. Westrheim.

Abstract:

During September 21-26, 1979, 5146 Dover sole were tagged and released at two locations in Area 5D (Figure 1). Recovery results through 1984 were published in Fargo et al. (1985). We analyzed the final recovery information for the tagging through 1999. Time at liberty was 20 years for the last recovery, and 15 recoveries were at liberty at least 10 years. During 1979-99 recovery rates were not significantly different for the two tagging grounds. Incidence of recovered tags (nos/100t) was substantially larger in Area 5D than in Area 5E. Recovery rates generally varied directly with length at tagging. The sex ratio was similar for tagged fish recovered from the commercial fishery in the two Areas, but not so in samples taken from commercial landings. There was a differential bathymetric migration of the sexes, also demonstrated in earlier studies in U.S. waters. Namely, female Dover sole tagged in "shallow" water in Hecate Strait migrated during winter into "deep" water off the west coast of the Queen Charlotte Islands for spawning. The migration of males to deepwater spawning areas preceded that of females.

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