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040 |aCaOODSP|beng|erda|cCaOODSP
0410 |aeng|beng|bfre
043 |an-cn-bc|apn-----
045 |ax5x8
0861 |aFs97-4/1990E-PDF|zFs97-4/1990E
1001 |aHaist, V., |eauthor.
24510|aStock assessments for British Columbia herring in 1987 and forecasts of the potential catch in 1988 / |cby V. Haist, J.F. Schweigert and D. Fournier.
264 1|aNanaimo, British Columbia : |bDepartment of Fisheries and Oceans, Biological Sciences Branch, Pacific Biological Station, |cOctober 1988.
264 4|c©1988
300 |a1 online resource (ix, 63 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. 1990
500 |aDigitized edition from print [produced by Department of Fisheries and Oceans].
504 |aIncludes bibliographical references (pages 34-35).
5203 |a"Herring stock abundance in British Columbia waters was assessed for 1987, and forecasts were made for 1988 using two analytical methods: (1) escapement model, and (2) age-structured model. Diving spawn survey data was utilized in the escapement model wherever available. Forecasts of pre-fishery biomass are obtained by weighting the estimates from the two models. The forecasts, are for 79,680 tonnes to the northern and 86,210 tonnes to the southern stock assessment regions. These estimates represent a slight decrease from 1987 levels, reflecting below average recruitments to all the southern areas during the last spawning run. The recommended 1988 catch (20% of the 1988 forecast herring run for stocks above CUTOFF levels) for the entire B.C. coast is 30,750 tonnes. All areas except the Queen Charlotte Islands should be available to the fishery in 1988"--Abstract, page iv.
546 |aIncludes abstracts in English and French.
650 0|aPacific herring|zBritish Columbia|zPacific Coast.
650 0|aPacific herring fisheries|zBritish Columbia|zPacific Coast.
650 0|aFish stock assessment|zBritish Columbia|zPacific Coast.
650 0|aPacific herring fisheries|zBritish Columbia|zPacific Coast|xForecasting.
650 6|aHareng du Pacifique|zColombie-Britannique|zPacifique, Côte du.
650 6|aHareng du Pacifique|xPêche commerciale|zColombie-Britannique|zPacifique, Côte du.
650 6|aRessources halieutiques|xÉvaluation|zColombie-Britannique|zPacifique, Côte du.
650 6|aHareng du Pacifique|xPêche commerciale|zColombie-Britannique|zPacifique, Côte du|xPrévision.
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. 1990.|w(CaOODSP)9.505211
85640|qPDF|s1.64 MB|uhttps://publications.gc.ca/collections/collection_2025/mpo-dfo/fs97-4/Fs97-4-1990-eng.pdf