000 03073cam  2200445zi 4500
0019.895603
003CaOODSP
00520221107174055
006m     o  d f      
007cr bn|||||||||
008210122s1987    nscbd   ob   f000 0 eng d
040 |aCaOODSP|beng|erda|cCaOODSP
0410 |aeng|beng|bfre
043 |an-cn-nk|an-cn-ns
0861 |aFs70-8/87-36E-PDF
1001 |aBuerkle, U‏., |eauthor.
24510|aResults of the 1986 and 1987 winter acoustic surveys of NAFO div. 4WX herring stocks / |cU. Buerkle.
264 1|a[Dartmouth, N.S.] : |bCanadian Atlantic Fisheries Scientific Advisory Committee ; |aSt. Andrews, New Brunswick, Canada : |bDepartment of Fisheries and Oceans, Marine Fish Division, Biological Station, |c[1987?]
300 |a1 online resource (19 pages) : |bmaps, graphs.
336 |atext|btxt|2rdacontent
337 |acomputer|bc|2rdamedia
338 |aonline resource|bcr|2rdacarrier
4901 |aCAFSAC research document ; |vno. 87/36
500 |aCover title.
500 |a"Not to be cited without permission of the author."
504 |aIncludes bibliographical references (pages 6-7).
5203 |a"Results of the 1986 and 1987 winter acoustic surveys of herring are described and compared to results from the 1984 and 1985 surveys. The replicate surveys in 1986 and in 1987, were similar to those done in 1984 and 1985, and showed similar herring distributions. The herring were concentrated in varying numbers of fish patches in the southern portion and in the approaches to Chedabucto Bay, N.S. The fish patches changed shape and size with time and replicate surveys produced a wide range of estimates of acoustic abundance. The maximum acoustic estimate produced each year is taken as the best estimate of the quantity of fish present. The acoustic estimates are converted to herring biomass by a target strength estimate determined for in-situ herring in Denmark. Herring abundance detected by the surveys has increased since 1984 by about 23% per year"--Abstract, page 2.
546 |aIncludes abstract and series statement in French.
650 0|aAtlantic herring fisheries|zScotian Shelf.
650 0|aAtlantic herring fisheries|zFundy, Bay of.
650 0|aFish stock assessment|zScotian Shelf.
650 0|aFish stock assessment|zFundy, Bay of.
650 6|aHareng|xPêche commerciale|zNéo-écossaise, Plateforme.
650 6|aHareng|xPêche commerciale|zFundy, Baie de.
650 6|aRessources halieutiques|xÉvaluation|zNéo-écossaise, Plateforme.
650 6|aRessources halieutiques|xÉvaluation|zFundy, Baie de.
7102 |aCanadian Atlantic Fisheries Scientific Advisory Committee, |eissuing body.
7101 |aCanada. |bDept. of Fisheries and Oceans. |bScotia-Fundy Region. |bMarine Fish Division, |eissuing body.
830#0|aCAFSAC research document (Canadian Atlantic Fisheries Scientific Advisory Committee)|vno. 87/36.|w(CaOODSP)9.869616
85640|qPDF|s1.08 MB|uhttps://publications.gc.ca/collections/collection_2021/mpo-dfo/fs70-8/Fs70-8-87-36-eng.pdf