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0861 |aFs70-5/2022-053E-PDF
1001 |aSurette, T. J., |eauthor.
24514|aThe 2021 assessment of the snow crab (Chionoecetes opilio) stock in the southern Gulf of St. Lawrence (areas 12, 12E, 12F and 19) / |cT. Surette and J. Chassé.
264 1|aOttawa ON : |bCanadian Science Advisory Secretariat (CSAS), |cAugust 2022.
264 4|c©2022
300 |a1 online resource (iv, 37 pages) : |billustrations (some colour), colour maps.
336 |atext|btxt|2rdacontent
337 |acomputer|bc|2rdamedia
338 |aonline resource|bcr|2rdacarrier
4901 |aResearch document, |x1919-5044 ; |v2022/053
500 |aIssued also in French under title: Évaluation du stock de crabe des neiges (Chionoecetes opilio) dans le sud du golfe du Saint-Laurent (zones 12, 12E, 12F, et 19) en 2021.
504 |aIncludes bibliographical references (pages 13-14).
5203 |a"Stock status of southern Gulf of St. Lawrence (sGSL) snow crab, Chionoecetes opilio, in 2021 is in the healthy zone based on the defined reference points for this stock, with an a commercially exploitable biomass of 80,950 t projected for 2022. The exploitation rate of the 2021 fishery was estimated at 31.5%, a relatively low value stemming from a 15% reduction in commercial biomass estimates made in response to concerns of over-estimation of stock indices during the 2019 and 2020 surveys. Fishery recruitment biomass is estimated at 62,473 t, while residual biomass was estimated at 19,144 t. Based on the harvest control rule, the commercial stock biomass index corresponds to a target exploitation rate of 40.96% resulting in a Total Allowable Catch (TAC) of 33,163 t for the 2022 fishery. Based on this catch option, a risk analysis indicates that there is a very low likelihood that the residual stock biomass would be below the limit reference point and a very high likelihood that the 2022 commercial stock biomass would be above the upper stock reference point. Mature female abundance remains high, though at lower levels than those observed in 2019 and 2020 and the population recruitment index is very high"--Abstract, page iv.
650 0|aSnow crab|zSaint Lawrence, Gulf of.
650 0|aSnow crab fisheries|zSaint Lawrence, Gulf of.
650 0|aFish stock assessment|zSaint Lawrence, Gulf of.
7102 |aCanadian Science Advisory Secretariat, |eissuing body.
7101 |aCanada. |bDepartment of Fisheries and Oceans. |bGulf Region, |eissuing body.
77508|tÉvaluation du stock de crabe des neiges (Chionoecetes opilio) dans le sud du golfe du Saint-Laurent (zones 12, 12E, 12F, et 19) en 2021 / |w(CaOODSP)9.913497
830#0|aResearch document (Canadian Science Advisory Secretariat)|v2022/053.|w(CaOODSP)9.507396
85640|qPDF|s4.53 MB|uhttps://publications.gc.ca/collections/collection_2022/mpo-dfo/fs70-5/Fs70-5-2022-053-eng.pdf