000 03161nam  2200337za 4500
0019.842106
003CaOODSP
00520221107152242
007cr |||||||||||
008170821s2010    mbcbd  fo    f000 0 eng d
040 |aCaOODSP|beng
041 |aeng|afre
043 |an-cn-mb
0861 |aFs70-5/2010-083-PDF
24500|aInformation relevant to a recovery potential assessment of lake sturgeon |h[electronic resource] : |bRed-Assiniboine Rivers - Lake Winnipeg populations (DU4) = Renseignements pertinents pour l’évaluation du potentiel de rétablissement de l’esturgeon jaune : populations des rivières Rouge et Assiniboine et du lac Winnipeg (UD 4) / |cH. Cleator ... [et al.].
24611|aRenseignements pertinents pour l’évaluation du potentiel de rétablissement de l’esturgeon jaune : |bpopulations des rivières Rouge et Assiniboine et du lac Winnipeg (UD 4)
260 |a[Winnipeg] : |bFisheries and Oceans Canada, |cc2010.
300 |av, 38 p. : |bcol. maps, charts
4901 |aResearch document = Document de recherche, |x1919-5044 ; |v2010/083
500 |aCover title.
504 |aIncludes bibliographic references.
5203 |aThe Lake Sturgeon (Acipenser fulvescens) was common in nearshore waters across much of Canada in the nineteenth century, but intensive fishing, habitat loss and degraded water quality caused severe reductions in population size or extirpation across their range. Today they remain extant from the North Saskatchewan River in Alberta, to Hudson Bay in the north, and eastward to the St. Lawrence River estuary. In November 2006, the Committee on the Status of Endangered Wildlife in Canada (COSEWIC) assessed Lake Sturgeon in Canada. Designatable Unit (DU) 4, the Red-Assiniboine rivers – Lake Winnipeg populations, includes Lake Sturgeon in the Red and Assiniboine rivers, Lake Winnipeg and all eastern tributary rivers to Lake Winnipeg excluding the Winnipeg River upstream of Pine Falls. COSEWIC assessed and designated DU4 as Endangered, as Lake Sturgeon in this DU declined severely over the past century and a significant portion of their habitat has been degraded or lost, especially in the southern portion of the DU. Historically, over-exploitation from commercial fisheries was probably the primary threat, whereas more recently habitat degradation and loss associated with agriculture, urban development, dam/impoundments and other barriers and industrial activities, and bycatch from the commercial fishery on Lake Winnipeg have become the most important threats.
546 |aText in English only; abstracts in English and French.
69207|2gccst|aFish
69207|2gccst|aInland waters
7001 |aCleator, Holly.
7101 |aCanada. |bDepartment of Fisheries and Oceans.
7102 |aCanadian Science Advisory Secretariat.
792 |tInformation relevant to a recovery potential assessment of lake sturgeon |w(CaOODSP)9.842118
830#0|aResearch document (Canadian Science Advisory Secretariat)|x1919-5044 ; |v2010/083|w(CaOODSP)9.500505
85640|qPDF|s449 KB|uhttps://publications.gc.ca/collections/collection_2017/mpo-dfo/Fs70-5-2010-083.pdf