000 02613nam  2200325za 4500
0019.806319
003CaOODSP
00520221107135850
007cr |||||||||||
008150406s2000    oncdb   ob   f000 0 eng d
040 |aCaOODSP|beng
041 |aeng|bfre
043 |an-cn---
0861 |aFs70-1/2000-162E-PDF
1001 |aRutherford, D. T.
24510|aAssessment of Rivers and Smith Inlet sockeye salmon, with commentary on small sockeye salmon stocks in statistical area 8 |h[electronic resource] / |cD. Rutherford and C. Wood.
260 |aOttawa : |bFisheries and Oceans Canada, |c2000.
300 |a57 p. : |bfig., graphs, maps, tables.
4901 |aCanadian Stock Assessment Secretariat research document, |x1480-4883 ; |v2000/162
504 |aIncludes bibliographic references (p. 15-16).
520 |aRivers Inlet (Owikeno Lake) and Smith Inlet (Long Lake) sockeye salmon stocks have shown recent dramatic declines in total abundance. Similar declines in total abundance of sockeye originating from Statistical Area 8 are also documented. All available data indicate that the critically low sockeye returns to both Rivers and Smith Inlet in 1999 and 2000 resulted from very poor marine survival for three consecutive brood years (1994-1996), not a failure in freshwater productivity. Marine survival indices for Owikeno and Long Lake indicate that marine survival has generally been poor for all brood years entering the ocean in 1992-1998. The critically low escapements in 1999 and 2000 are a result of the compounding effect of poor marine survival and low brood year escapements. If marine survival continues to be poor for rivers and Smith Inlet sockeye, drastic measures may be required to prevent a downward spiral to extirpation. On the other hand, if marine survival returned to normal for sea-entry year 1999, returns to Rivers Inlet will exceed the escapement target in 2001 as a result of the above target escapement in 1997. This is not the case for Smith Inlet where escapements have been well below target since 1995.
69207|2gccst|aFisheries resources
69207|2gccst|aSalt water fish
69207|2gccst|aFishing area
69207|2gccst|aFisheries management
7001 |aWood, Christopher Charles,|d1955-
7101 |aCanada. |bDepartment of Fisheries and Oceans.
7102 |aCanada.|bCanadian Stock Assessment Secretariat.
830#0|aCanadian Stock Assessment Secretariat research document,|x1480-4883 ; |v2000/162|w(CaOODSP)9.507740
85640|qPDF|s3.37 MB|uhttps://publications.gc.ca/collections/collection_2015/mpo-dfo/Fs70-1-2000-162-eng.pdf