000	03221nam  2200409za 4500
001	9.826861
003	CaOODSP
005	20221107144659
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008	161103s2016    oncbd   ob   f000 0 eng d
040	|aCaOODSP|beng
041	|aeng|bfre
043	|an-cn---
086	1 |aFs70-5/2016-067E-PDF
100	1 |aSurette, T. J.
245	10|aAbundance indices and selectivity curves from experimental multi-panel gillnets for the southern Gulf of St. Lawrence fall herring fishery |h[electronic resource] / |cT.J. Surette, C.H. LeBlanc, and A. Mallet.
246	1 |iTitle at head of French abstract: |aIndices d'abondance et courbes de sélectivité issus de la pêche aux filets maillants expérimentaux à panneaux multiples du hareng d'automne dans le sud du golfe du Saint-Laurent
260	|aOttawa : |bFisheries and Oceans Canada, |cc2016.
300	|avi, 23 p. : |bcol. map
490	1 |aCanadian Science Advisory Secretariat research document, |x1919-5044 ; |v2016/067, Gulf Region
500	|aCover title.
500	|a“Science Branch, Gulf Region.”
500	|a“October 2016.”
504	|aIncludes bibliographical references (p. 9).
520	|a"In partnership with Fisheries and Oceans Canada (DFO), fish harvesters participating in the Atlantic herring (Clupea harengus) fall fishery in NAFO 4T surveyed five spawning grounds in the southern Gulf of St. Lawrence using multi-panel experimental gillnets over the course of their regular fishing activities from 2002 to 2013. The results of these surveys are analyzed to identify whether they can be used as indices of local abundance for assessment of fall 4T herring. Catches were analyzed with a selectivity model, which produced mesh-specific selectivity curves, length-based population indices, and age disaggregated indices for the North, Middle, and South regions of the southern Gulf of St. Lawrence. The selectivity model has little ability to estimate how fishing power varies with mesh size, so population indices might be length-biased. Uncertainties also underlie the scale of catches due to methodological and biological differences between years and regions. Nevertheless, cohort tracks in the catch-at-age were fairly consistent between regions and indicate that some dynamics of the underlying population are captured. Consequently, the selectivity and catch-at-age indices were approved for use in future population dynamics models of Altantic herring for the southern Gulf of St. Lawrence"--Abstract, p. v.
546	|aIncludes abstract in French.
692	07|2gccst|aFisheries resources
692	07|2gccst|aSalt water fish
692	07|2gccst|aFishing area
692	07|2gccst|aFisheries management
700	1 |aLeBlanc, Caroline,|d1961-
700	1 |aMallet, André.
710	1 |aCanada. |bDepartment of Fisheries and Oceans.
710	1 |aCanada. |bEcosystems and Oceans Science.
710	2 |aCanadian Science Advisory Secretariat.
830	#0|aResearch document (Canadian Science Advisory Secretariat)|x1919-5044 ; |v2016/067, Gulf Region|w(CaOODSP)9.507396
856	40|qPDF|s1.01 MB|uhttps://publications.gc.ca/collections/collection_2016/mpo-dfo/Fs70-5-2016-067-eng.pdf