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008260511t19971997bccab   ob   f000 0 eng d
040 |aCaOODSP|beng|erda|cCaOODSP
0410 |aeng|beng|bfre
043 |an-cn-bc
045 |ax8x9
0861 |aFs97-4/2422E-PDF|zFs97-4/2422E
1001 |aLink, Michael R., |d1963- |eauthor.
24514|aThe 1995 fishwheel project on the Nass River, BC / |cprepared by M.R. Link and A.C. Gurak.
264 1|aPrince Rupert, BC : |bDepartment of Fisheries and Oceans, |c1997.
264 4|c©1997
300 |a1 online resource (xi, 99 pages) : |billustrations, map.
336 |atext|btxt|2rdacontent
337 |acomputer|bc|2rdamedia
338 |aonline resource|bcr|2rdacarrier
4901 |aCanadian manuscript report of fisheries and aquatic sciences, |y0706-6473 ; |v2422
500 |a"LGL Limited, environmental research associates, for the Nisga'a Tribal Council."
500 |aDigitized edition from print [produced by Department of Fisheries and Oceans].
504 |aIncludes bibliographical references (pages 18-19).
5203 |a"Four fishwheels were operated on the lower Nass River from 8 June to 4 September 1995. The fishwheels operated for a total 6,762 hand captured 34,642 salmon. Exclusive of jacks, the catch comprised 21,090 sockeye, 8,881 pink, 1,837 coho, 920 chinook, 224 chum, and 111 steelhead. Of these, 9,031 sockeye, 842 coho, and 719 chinook salmon were tagged. A total of 6,445 tagged fish were later recovered in fisheries and on tributaries of the Nass River. From 28 July to 20 August, a total of 2,044 sockeye were selectively harvested from 2 of the fishwheels. We used counts of marked and unmarked fish from the Meziadin fishway and inriver harvests to compute mark-recapture escapement estimates for sockeye (264,685) and coho salmon (25,253). The coho estimate represents a portion of the total coho escapement because the fishwheels did not operate through the entire coho run and recovery efforts were confined to an early run stock (Meziadin River). The net chinook escapement (7,844) was estimated using carcass and tag recoveries from several spawning grounds in the watershed. The 4 fishwheels caught an estimated 7.5% of the sockeye run, 9.2% of the chinook run and 7.5% of the portion of the coho run that had similar run timing as the Meziadin River stock. We used daily tag release (at the fishwheels) and recovery data (at the Meziadin fishway) to reconstruct the sockeye abundance in the lower river and assess the within-season variation in the portion of the sockeye run caught by the fishwheels. As in previous years, fishwheel efficiency varied significantly within the season. The peaks in fishwheel efficiency on sockeye in 1995 appeared to be related to the absolute level of the Nass River"--Abstract, page x.
546 |aIncludes abstracts in English and French.
650 0|aPacific salmon|zBritish Columbia|zNass River.
650 0|aSteelhead (Fish)|zBritish Columbia|zNass River.
650 0|aEscapement (Fisheries)|zBritish Columbia|zNass River.
650 0|aFishes|xCounting|zBritish Columbia|zNass River.
650 0|aFishes|xMarking|zBritish Columbia|zNass River.
650 0|aFishwheels|zBritish Columbia|zNass River.
650 6|aSaumons du Pacifique|zColombie-Britannique|zNass, Rivière.
650 6|aTruite arc-en-ciel|zColombie-Britannique|zNass, Rivière.
650 6|aÉchappée (Pêches)|zColombie-Britannique|zNass, Rivière.
650 6|aPoissons|xComptage|zColombie-Britannique|zNass, Rivière.
650 6|aPoissons|xMarquage|zColombie-Britannique|zNass, Rivière.
650 6|aTourniquets (Pêches)|zColombie-Britannique|zNass, Rivière.
7101 |aCanada. |bDepartment of Fisheries and Oceans, |eissuing body.
7102 |aL.G.L. Limited, Environmental Research Associates, |econsultant.
830#0|aCanadian manuscript report of fisheries and aquatic sciences ;|v2422.|w(CaOODSP)9.505211
85640|qPDF|s4.86 MB|uhttps://publications.gc.ca/collections/collection_2026/mpo-dfo/fs97-4/Fs97-4-2422-eng.pdf