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008260316t19961996bccab   ob   f000 0 eng d
040 |aCaOODSP|beng|erda|cCaOODSP
0410 |aeng|beng|bfre
043 |an-cn-bc|apn-----
045 |ax7x9
0861 |aFs97-4/2388E-PDF|zFs97-4/2388E
1001 |aLeaman, B. M., |d1949- |eauthor.
24510|aCruise details and biological information from the Pacific ocean perch monitoring survey, R/V W.E. RICKER, June 19-30, 1993 / |cby B.M. Leaman, A.M. Cornthwaite, and R.D. Stanley.
264 1|aNanaimo, British Columbia : |bDepartment of Fisheries and Oceans, Stock Assessment Division, Pacific Biological Station, |c1996.
264 4|c©1996
300 |a1 online resource (iv, 71 pages) : |billustrations, maps.
336 |atext|btxt|2rdacontent
337 |acomputer|bc|2rdamedia
338 |aonline resource|bcr|2rdacarrier
4901 |aCanadian manuscript report of fisheries and aquatic sciences, |y0706-6473 ; |vno. 2388
500 |aDigitized edition from print [produced by Department of Fisheries and Oceans].
504 |aIncludes bibliographical references (pages 7-8).
5203 |a"The results of the first monitoring cruise to the experimental fishing area off Langara Island (Langara Spit) are presented. The survey occurred three years after a seven year experimental period of unrestricted fishing on rockfish (Sebastes spp.) stocks. Forty-two bottom trawl hauls, deployed in a stratified random design, were used to collect biological samples and catch rate data. Length, age, and maturity data for all commercial species of rockfish in the survey area are presented by subarea. Age composition of the S. alutus stock showed prominent modes representing the 1984, 1980, and 1976 cohorts. Comparison of Pacific ocean perch age composition with that of other areas subject to quota management during the same period shows the strong 1976 cohort reduced to subordinate status in the experimental area, while it remains the dominant cohort in quota-managed areas. Although the emphasis of the survey was on biological data collection, biomass estimates and bootstrapped 95% confidence intervals were calculated for major rockfish species. The rockfish biomass in the area (9824 t ± 32%) was dominated by Pacific ocean perch (S. alutus) which accounted for over 62% of the biomass (6143 t ± 47%), with S. brevispinis, S. reedi, and S. zacentrus contributing from 6-12% of the biomass"--Abstract, page iii.
546 |aIncludes abstracts in English and French.
650 0|aPacific ocean perch|zBritish Columbia|zHaida Gwaii.
650 0|aSebastes|zBritish Columbia|zHaida Gwaii.
650 0|aSebastes populations|zBritish Columbia|zHaida Gwaii.
650 0|aFish surveys|zBritish Columbia|zHaida Gwaii.
650 6|aSébaste à longue mâchoire|zColombie-Britannique|zHaida Gwaii.
650 6|aSébastes|zColombie-Britannique|zHaida Gwaii.
650 6|aSébastes|xPopulations|zColombie-Britannique|zHaida Gwaii.
650 6|aInventaires ichtyologiques|zColombie-Britannique|zHaida Gwaii.
7101 |aCanada. |bDepartment of Fisheries and Oceans, |eissuing body.
7102 |aPacific Biological Station (1972- ), |eissuing body.
830#0|aCanadian manuscript report of fisheries and aquatic sciences ;|vno. 2388.|w(CaOODSP)9.505211
85640|qPDF|s3.31 MB|uhttps://publications.gc.ca/collections/collection_2026/mpo-dfo/fs97-4/Fs97-4-2388-eng.pdf