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| 02179nam 2200361zi 4500 |
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001 | 9.869622 |
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003 | CaOODSP |
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005 | 20221107162910 |
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006 | m o d f |
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007 | cr ||||||||||| |
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008 | 190311s1984 nfca|||#o f000 0 eng d |
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040 | |aCaOODSP|beng|erda|cCaOODSP |
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041 | |aeng|bfre |
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043 | |an-cn-nf |
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086 | 1 |aFs70-8/84-25E-PDF |
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100 | 1 |aBishop, Christine Annette, |d1960- |eauthor. |
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245 | 12|aA comparison of the influence of stratification by depth zone and by individual strata on research vessel abundance estimates / |cby C.A. Bishop. |
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264 | 1|aSt. John's, Newfoundland : |bFisheries Research Branch, Department of Fisheries and Oceans,|c[1984] |
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300 | |a1 online resource (19 pages) : |billustrations. |
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336 | |atext|btxt|2rdacontent |
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337 | |acomputer|bc|2rdamedia |
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338 | |aonline resource|bcr|2rdacarrier |
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490 | 1 |aCAFSAC research document = CSCPCA document de recherche ; |v84/25 |
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500 | |aDigitized edtion from print [produced by Department of Fisheries and Oceans]. |
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500 | |a"Not to be cited without permission of the authors." |
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504 | |aIncludes bibliographical reference (page 6). |
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520 | 3 |a"Stratification by depth zone and by individual strata were compared as to their effect on cod abundance estimates from research surveys in NAFO Subdiv. 3Ps. Stratification by depth zone was proposed as a means of providing population estimates for surveys where coverage was incomplete and when catches were highly variable. Combining strata within depth zones effectively increased the number of sets in the new strata and generally reduced the variances associated with the abundance estimates. Estimates of mean numbers per tow from both methods followed similar patterns."--Abstract |
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546 | |aIncludes abstract in French. |
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692 | 07|2gccst|aFisheries |
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692 | 07|2gccst|aSurveys |
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710 | 1 |aCanada. |bDepartment of Fisheries and Oceans. |
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830 | #0|aCAFSAC research document (Canadian Atlantic Fisheries Scientific Advisory Committee)|v84/25|w(CaOODSP)9.869616 |
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856 | 40|qPDF|s642 KB|uhttps://publications.gc.ca/collections/collection_2019/mpo-dfo/Fs70-8-84-25-eng.pdf |
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