00000000nam 2200000zi 4500
0019.875015
003CaOODSP
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007cr |||||||||||
008190617s1981    qucab  #o    f000 0 eng d
040 |aCaOODSP|beng|erda|cCaOODSP
041 |aeng|bfre
043 |an-cnm--|an-cn-qu
0861 |aFs70-8/81-23E-PDF
1001 |aCleary, Lynn.
24513|aAn assessment of the Gulf of St. Lawrence herring stock complex / |cby L. Cleary.
264 1|aCap Diamant, Québec : |bDirection de la recherche sur les pêches, |c[1981]
300 |a1 online resource (34 pages) : |billustrations, map.
336 |atext|btxt|2rdacontent
337 |acomputer|bc|2rdamedia
338 |aonline resource|bcr|2rdacarrier
4901 |aCAFSAC research document ; |v81/23
500 |aDigitized edition from print [produced by Department of Fisheries and Oceans].
500 |a"Not to be cited without permission of the author."
504 |aIncludes bibliographical references.
5203 |a"Landings from the 4T herring stock declined from 270 000 t in 1970 to 40 500 t in 1980. Recently, the fishery has been sustained mainly by the 1974 year-class. The catch matrix shows a decreasing trend in the proportion of mature fish in the catch (6 years old: 91% in 1969, 22% in 1980), while no particularly strong recruitment is obvious since the 1974 year-class entered the fishery. An analysis of the catch rate data reveals that for both the commercial inshore and offshore fishery and groundfish research cruises catch rates are at a historical low, except for the Pictou Island fall gillnet fishery"--Abstract.
546 |aIncludes abstract in French.
69207|2gccst|aFisheries
69207|2gccst|aSurveys
7101 |aCanada. |bDepartment of Fisheries and Oceans.
830#0|aCAFSAC research document (Canadian Atlantic Fisheries Scientific Advisory Committee)|v81/23|w(CaOODSP)9.869616
85640|qPDF|s12.80 MB|uhttps://publications.gc.ca/collections/collection_2019/mpo-dfo/Fs70-8-81-23-eng.pdf