00000000nam 2200000zi 4500
0019.895586
003CaOODSP
00520221107174052
006m     o  d f      
007cr bn|||||||||
008210122s1987    nscd    o    f000 0 eng d
040 |aCaOODSP|beng|erda|cCaOODSP
0410 |aeng|beng|bfre
043 |an-cn-nf
0861 |aFs70-8/87-33E-PDF
1001 |aBowering, W. R. |q(William Raymond), |d1950- |eauthor.
24513|aAn update of the status of the witch flounder resource in NAFO divisions 2J, 3K and 3L / |cby W.R. Bowering.
264 1|a[Dartmouth, N.S.] : |bCanadian Atlantic Fisheries Scientific Advisory Committee ; |aSt. John's, Newfoundland : |bDepartment of Fisheries and Oceans, Science Branch, |c[1987?]
300 |a1 online resource (17 pages) : |bgraphs.
336 |atext|btxt|2rdacontent
337 |acomputer|bc|2rdamedia
338 |aonline resource|bcr|2rdacarrier
4901 |aCAFSAC research document ; |vno. 87/33
500 |aCover title.
500 |a"Not to be cited without permission of the authors."
5203 |a"Catches of witch flounder in Div. 2J, 3K and 3L peaked at about 24,000 t in 1973, declined almost steadily to 1980 at about 3500 t, and remained stable to 1985. The 1986 catch of 1300 t is the lowest reported catch in more than 20 years. A biomass estimate for 1986 for the three divisions combined as determined from fall surveys indicates a minimum trawlable biomass of 25,000 t which is low compared to recent years. Age compositions from both research and commercial samples indicate a stable age structure in recent years at low levels of fishing pressure and despite this the age span has not increased. Long-term estimates of mortality suggest that fishing mortality in the late 1970's was probably 2-3 times the F0.1 level of 0.30"--Abstract, page 2.
546 |aIncludes abstract and series statement in French.
650 0|aGlyptocephalus cynoglossus fisheries|zNewfoundland and Labrador.
650 0|aFish stock assessment|zNewfoundland and Labrador.
650 6|aPlie grise|xPêche commerciale|zTerre-Neuve-et-Labrador.
650 6|aRessources halieutiques|xÉvaluation|zTerre-Neuve-et-Labrador.
7102 |aCanadian Atlantic Fisheries Scientific Advisory Committee, |eissuing body.
7101 |aCanada. |bDepartment of Fisheries and Oceans. |bScience, |eissuing body.
830#0|aCAFSAC research document (Canadian Atlantic Fisheries Scientific Advisory Committee)|vno. 87/33.|w(CaOODSP)9.869616
85640|qPDF|s1.20 MB|uhttps://publications.gc.ca/collections/collection_2021/mpo-dfo/fs70-8/Fs70-8-87-33-eng.pdf