000 02876nam  2200337za 4500
0019.845338
003CaOODSP
00520221107152939
007cr |||||||||||
008171011s2017    oncbd   obs  f000 0 eng d
040 |aCaOODSP|beng
041 |aeng|bfre
043 |an-cn-nf|an-cn-qu|an-cnm--
0861 |aFs70-5/2017-039E-PDF
24500|aCurrent status and threats to the North Atlantic shortfin mako shark (Isurus oxyrinchus) population in Atlantic Canada |h[electronic resource] / |cM.A. Showell ... [et al.].
260 |aOttawa : |bFisheries and Oceans Canada, Canadian Science Advisory Secretariat, |c2017.
300 |av, 45 p. : |bcharts (mostly col.), maps (mostly col.)
4901 |aCanadian Science Advisory Secretariat (CSAS), research document, |x1919-5044 ; |v2017/039, Maritimes, and Newfoundland and Labrador Regions
500 |aCover title.
500 |a“September 2017.”
504 |aIncludes bibliographical references (p. 11-14).
520 |a“The Shortfin Mako Shark (Isurus oxyrinchus) is a large pelagic shark of the family Lamnidae. This species has a pan-global distribution in temperate waters of the Atlantic, Pacific, and Indian oceans. In 2006, the Committee on the Status of Endangered Wildlife in Canada (COSEWIC) designated Mako Shark as ‘Threatened’ and recommended that it be listed on Schedule 1 of Canada’s Species at Risk Act (SARA). This classification was based on life-history characteristics that make this species vulnerable to increased mortality and a long-term decline in abundance indicators. Following the COSEWIC listing decision, a Recovery Potential Assessment (RPA) for Shortfin Mako was conducted by DFO, in which catches outside Canada’s EEZ were identified as the primary source of mortality. Live release and a maximum annual catch limit (100 t) were also recommended as measures to mitigate mortality of Shortfin Mako, in addition to fishery-independent surveys of this species to obtain more accurate population estimates for Canadian waters. Shortfin Mako is scheduled for re-assessment by COSEWIC in 2016 (i.e., a ten-year cycle). This Research Document updates information on the status of and threats to this species in support of this COSEWIC evaluation"--Introd., p. 1-2.
546 |aIncludes abstract in French.
69207|2gccst|aEndangered species
69207|2gccst|aSalt water fish
69207|2gccst|aNature conservation
7001 |aShowell, Mark A.|q(Mark Alexander)
7101 |aCanada. |bDepartment of Fisheries and Oceans.
7102 |aCanadian Science Advisory Secretariat.
830#0|aResearch document (Canadian Science Advisory Secretariat)|x1919-5044 ; |v2017/039, Maritimes, and Newfoundland and Labrador Regions|w(CaOODSP)9.507396
85640|qPDF|s2.20 MB|uhttps://publications.gc.ca/collections/collection_2017/mpo-dfo/Fs70-5-2017-039-eng.pdf