00000000cam 2200000zi 4500
0019.964398
003CaOODSP
00520260721082731
006m     o  d f      
007cr mn|||||||||
008260721t20012000bccab   ob   f000 0 eng d
040 |aCaOODSP|beng|erda|cCaOODSP
0410 |aeng|beng|bfre
043 |an-cn-bc
045 |ax8x9
0861 |aFs97-4/2556E-PDF|zFs97-4/2556E
1001 |aAlexander, Richard F., |eauthor.
24514|aThe 1998 fishwheel project on the Nass River, BC / |cprepared by Richard F. Alexander and Michael R. Link.
264 1|aPrince Rupert, British Columbia : |bFisheries and Oceans Canada, Science Branch, Pacific Region, |c2001.
264 4|c©2000
300 |a1 online resource (xi, 110 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 ; |v2556
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 16-17).
5203 |a"Four fishwheels were operated on the lower Nass River from 12 June to 13 October 1998. The fishwheels operated for a total of 9,874 h and captured 38,155 salmon. Catches of adult salmon included 19,176 sockeye, 10,624 pink, 3,869 coho, 3,507 chinook, 707 steelhead, and 272 chum. Of these, 4,030 sockeye, 2,766 coho, 1,606 chinook salmon, and 635 steelhead were tagged. Totals of 388 chinook, 1,752 sockeye and 1,148 coho salmon from the catch were successfully aged using scales. A total of 3,297 tagged fish were later recovered in fisheries and on tributaries of the Nass River. Counts of marked and unmarked fish from the Meziadin fishway and in-river harvests were used to compute net escapement estimates for sockeye (266,458) and coho salmon (42,320). The coho estimate represented only 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 (23,213) was derived by a mark-recapture estimate (spawning ground surveys) minus estimated in-river harvests. The four fishwheels combined caught an estimated 12.6% of the chinook run, 8.9% of the coho run, and 6.2% of the sockeye run. Including subsequent in-river harvests, an estimated 32,548 chinook and 304,888 sockeye salmon entered the Nass River in 1998. Daily tag release (at the fishwheels) and recovery data (at the Meziadin fishway) were used 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"--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|aFish tagging|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.
7101 |aCanada. |bDepartment of Fisheries and Oceans. |bPacific Region. |bScience Branch, |eissuing body.
7102 |aL.G.L. Limited, Environmental Research Associates, |econsultant.
830#0|aCanadian manuscript report of fisheries and aquatic sciences ;|v2556.|w(CaOODSP)9.505211
85640|qPDF|s3.48 MB|uhttps://publications.gc.ca/collections/collection_2026/mpo-dfo/fs97-4/Fs97-4-2556-eng.pdf