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040 |aCaOODSP|beng|erda|cCaOODSP
0410 |aeng|beng|bfre
043 |an-cn-nt
045 |ax7x7
0861 |aFs97-4/1820E-PDF|zFs97-4/1820E
1001 |aRoberge, M. M., |eauthor.
24510|aInvestigation of a fall spawning run of lake whitefish into the Little Buffalo River, Northwest Territories / |cby M.M. Roberge, G. Low and C.J. Read.
264 1|aWinnipeg, Manitoba : |bWestern Region, Department of Fisheries and Oceans, |cJune 1985.
264 4|c©1985
300 |a1 online resource (v, 31 pages) : |billustrations, maps.
336 |atext|btxt|2rdacontent
337 |acomputer|bc|2rdamedia
338 |aonline resource|bcr|2rdacarrier
4901 |aCanadian manuscript report of fisheries and aquatic sciences, |y0706-6473 ; |v1820
500 |a"This is the 51st Manuscript Report from the Western Region, Winnipeg."
500 |aDigitized edition from print [produced by Department of Fisheries and Oceans].
504 |aIncludes bibliographical references (pages 5-6).
5203 |a"In 1975, a study was conducted on the fall spawning run of lake whitefish, Coregonus clupeaformis (Mitchill) into the Little Buffalo River, Northwest Territories to collect biological data from a discrete spawning group of lake whitefish and gather information on lake whitefish post-spawning dispersal patterns. Additional information on the post-spawning dispersal patterns and the relationship of Little Buffalo River lake whitefish to both the domestic and commercial fisheries of Great Slave Lake was undertaken in 1977. Little Buffalo River lake whitefish spawn in late September-October. Post spawning movement appears to be restricted; the maximum distance travelled was approximately 70 km. The domestic fishery relies heavily on lake whitefish from Little Buffalo River while exploitation by the Great Slave Lake commercial fishery appears to be light. Mean lengths of lake whitefish were 376 mm and 389 mm and mean ages were 7.2 yr and 8.6 yr in 1975 and 1977 respectively. In 1975 the youngest spawners, male and female were 5 yr while in 1977 the youngest male spawners were 7 yr and the youngest females were 8 yr. Fecundity was estimated to be 18 743 ova per female. Weight-length relationships were calculated. Total instantaneous annual mortality (Z) was 1.38 in 1975 and 0.97 in 1977"--Abstract, page v.
546 |aIncludes abstracts in English and French.
650 0|aLake whitefish|zNorthwest Territories.
650 0|aLake whitefish|xSpawning|zNorthwest Territories.
650 0|aLake whitefish|xMigration|zNorthwest Territories.
650 0|aLake whitefish fisheries|zNorthwest Territories.
650 6|aGrand corégone|zTerritoires du Nord-Ouest.
650 6|aGrand corégone|xFrai|zTerritoires du Nord-Ouest.
650 6|aGrand corégone|xMigration|zTerritoires du Nord-Ouest.
650 6|aGrand corégone|xPêche commerciale|zTerritoires du Nord-Ouest.
7101 |aCanada. |bDepartment of Fisheries and Oceans, |eissuing body.
7101 |aCanada. |bDepartment of Fisheries and Oceans. |bWestern Region, |eissuing body.
830#0|aCanadian manuscript report of fisheries and aquatic sciences ;|v1820.|w(CaOODSP)9.505211
85640|qPDF|s680 KB|uhttps://publications.gc.ca/collections/collection_2025/mpo-dfo/fs97-4/Fs97-4-1820-eng.pdf