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040 |aCaOODSP|beng|erda|cCaOODSP
0410 |aeng|beng|bfre
043 |an-cn-bc
0861 |aFs97-6/1573E-PDF|zFs97-6/1573E
1001 |aJohnston, N. T., |eauthor.
24510|aInstream indexing of coho salmon (Oncorhynchus kisutch) escapement in French Creek, British Columbia / |cby N.T. Johnston, J.R. Irvine, and C.J. Perrin.
264 1|aWest Vancouver, British Columbia : |bDepartment of Fisheries and Oceans, Fisheries Research Branch, West Vancouver Laboratory, |cJune 1987.
264 4|c©1987
300 |a1 online resource (vi, 37 pages) : |billustrations, map.
336 |atext|btxt|2rdacontent
337 |acomputer|bc|2rdamedia
338 |aonline resource|bcr|2rdacarrier
4901 |aCanadian technical report of fisheries and aquatic sciences, |x0706-6457 ; |vno. 1573
500 |aDigitized edition from print [produced by Department of Fisheries and Oceans].
504 |aIncludes bibliographical references (pages 25-27).
5203 |a"We evaluated the utility of instream indexing for estimating coho escapements in a small river system for which there were independent estimates of escapement from fence counts and mark-recapture surveys. We compared three survey designs (simple random sampling, spawning ground sampling, and "index area" sampling), three sampling unit sizes (100, 200, and 400 m), and four methods of estimation (peak livecounts, peak live plus accumulated dead counts, total dead counts, and area-under-the-curve), using visual count data obtained by foot surveys. We also compared the counting efficiencies of different observers, and examined the relation between visual estimates of coho density and densities obtained by electrofishing. …"--Abstract, page iv.
546 |aIncludes abstracts in English and French.
650 0|aEscapement (Fisheries)|zBritish Columbia|zVancouver Island.
650 0|aCoho salmon|xCounting|zBritish Columbia|zVancouver Island.
650 0|aCoho salmon|xMigration|zBritish Columbia|zVancouver Island.
650 6|aÉchappée (Pêches)|zColombie-Britannique|zVancouver, Île de.
650 6|aSaumon coho|xComptage|zColombie-Britannique|zVancouver, Île de.
650 6|aSaumon coho|xMigration|zColombie-Britannique|zVancouver, Île de.
7101 |aCanada. |bDepartment of Fisheries and Oceans, |eissuing body.
7101 |aCanada. |bDepartment of Fisheries and Oceans. |bWest Vancouver Laboratory, |eissuing body.
830#0|aCanadian technical report of fisheries and aquatic sciences ;|vno. 1573.|w(CaOODSP)9.504449
85640|qPDF|s1.34 MB|uhttps://publications.gc.ca/collections/collection_2025/mpo-dfo/fs97-6/Fs97-6-1573-eng.pdf