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Journal of Freshwater Ecology Volume 8, 1993 - Issue 2
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Original Articles

Negative Bias in Removal Estimates of Atlantic Salmon Parr Relative to Stream Size

Stephen C. Riley Ocean Sciences Centre, Memorial University of Newfoundland, 4 Clark Place, St. John's, Newfoundland, Canada, A1C 5X1
,
Richard L. Haedrich Ocean Sciences Centre, Memorial University of Newfoundland, 4 Clark Place, St. John's, Newfoundland, Canada, A1C 5X1
&
R. J. Gibson Department of Fisheries and Oceans, Science Branch, P.O.Box 5667, St. John's, Newfoundland, Canada, A1B 3X7
Pages 97-101 | Received 28 Jan 1993, Accepted 10 Mar 1993, Published online: 07 Jan 2011
 
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ABSTRACT

Removal estimates conducted on Atlantic salmon parr populations of known size consistently underestimated population size. This negative bias was greater at low parr densities and in reaches with larger cross-sectional area.

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