000 02903cam  2200373zi 4500
0019.880776
003CaOODSP
00520221107165849
006m    go  d f      
007cr |n|||||||||
008191018t20192019bcca    ob   f000 0 eng d
040 |aCaOODSP|beng|erda|cCaOODSP
043 |an-cn-bc
0861 |aFs70-6/2019-036E-PDF
24504|aThe identification of provisional reference points and harvest rate options for the commercial red sea urchin (Mesocentrotus franciscanus) fishery in British Columbia.
264 1|aNanaimo, BC : |bCentre for Science Advice (CSA), Pacific Region, Fisheries and Oceans Canada, |c2019.
264 4|c©2019
300 |a1 online resource (12 pages) : |bcolour figures.
336 |atext|btxt|2rdacontent
337 |acomputer|bc|2rdamedia
338 |aonline resource|bcr|2rdacarrier
4901 |aCanadian Science Advisory Secretariat, science advisory report, |x1919-5087 ; |v2019/036
500 |aIssued also in French under title: Détermination des points de référence provisoires et des options de taux de récolte pour la pêche commerciale de l’oursin rouge (Mesocentrotus franciscanus) en Colombie-Britannique.
500 |aCover title.
500 |a"July 2019."
504 |aIncludes bibliographical references (pages 9-11).
520 |a"The Red Sea Urchin (Mesocentrotus franciscanus) (RSU) fishery in British Columbia (BC) is currently managed using an annual harvest rate of 2% (Leus et al. 2014). This harvest rate was derived using a modified Gulland surplus production model; a model used when a stock is data limited and in the early stages of exploitation (Gulland 1971). The RSU fishery is no longer in the early stages of exploitation, commercial harvesting has been occurring for 48 years. To date, almost 25 years of urchin density and size data have been gathered through fishery-independent dive surveys. These data and the exploitation history of the fishery warrant a re-evaluation of the 2% harvest rate through the development of new models. Further, the existing RSU harvest strategy lacks reference points that reflect conservation thresholds required under DFO's Sustainable Fisheries Framework (DFO 2009a)."--Context, page [1].
69207|2gccst|aFisheries
69207|2gccst|aFisheries resources
7101 |aCanada. |bDepartment of Fisheries and Oceans. |bPacific Region.
7102 |aCanadian Science Advisory Secretariat.
77508|tDétermination des points de référence provisoires et des options de taux de récolte pour la pêche commerciale de l’oursin rouge (Mesocentrotus franciscanus) en Colombie-Britannique.|w(CaOODSP)9.880778
830#0|aScience advisory report (Canadian Science Advisory Secretariat)|x1919-5087 ; |v2019/036.|w(CaOODSP)9.506226
85640|qPDF|s786 KB|uhttps://publications.gc.ca/collections/collection_2019/mpo-dfo/fs70-6/Fs70-6-2019-036-eng.pdf