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008190426s2019    bcca    o    f000 0 eng d
020 |a9780660305332
040 |aCaOODSP|beng|erda|cCaOODSP
041 |aeng|bfre
043 |an-cn---
0861 |aFs97-6/3306E-PDF
1001 |aAnderson, Erika D., |eauthor.
24510|aComparison of juvenile salmon catch in Cantrawl 250 and LFS 7742 mid-water trawl nets / |cE.D. Anderson, T.B. Zubkowski, and J.R. King.
264 1|aNanaimo, British Columbia : |bFisheries and Oceans Canada, Science Branch, Pacific Region, Pacific Biological Station, |c2019.
264 4|c©2019
300 |a1 online resource (v, 87 pages) : |billustrations (some colour).
336 |atext|btxt|2rdacontent
337 |acomputer|bc|2rdamedia
338 |aonline resource|bcr|2rdacarrier
4901 |aCanadian technical report of fisheries and aquatic sciences, |x1488-5379 ;|v3306
504 |a Includes bibliographical references (page 6).
520 |a"In October 2018, a mid-water trawl gear comparison study was completed in the Strait of Georgia on the FV Sea Crest using Cantrawl 250 and LFS 7742 nets. Captured juvenile salmon abundance, biomass and size were used as metrics to test for differences in net catchability and selectivity. After 16 net adjustments tows, the following net protocols were recommended: an adjustable setback of 17 links plus hammer lock at the surface, and 36 links at depth; two floats attached to the headrope at the surface on the wingtips, and no floats at depth; and two chain clumps, one attached to each of lower wingtips on all tows. In 32 additional tows, abundance, biomass, and fork length of juvenile salmon showed no significant differences when standardized by swept volume"--Abstract, page iv.
546 |aIncludes abstract in French.
69207|2gccst|aSalt water fish
7001 |aZubkowski, T. B., |eauthor.
7001 |aKing, J. R. |q(Jacquelynne R.), |d1968- |eauthor.
7101 |aCanada. |bDepartment of Fisheries and Oceans.
7102 |aPacific Biological Station (1972- )
830#0|aCanadian technical report of fisheries and aquatic sciences,|x1488-5379 ;|v3306.|w(CaOODSP)9.504449
85640|qPDF|s3.46 MB|uhttps://publications.gc.ca/collections/collection_2019/mpo-dfo/Fs97-6-3306-eng.pdf