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dc.creatorGresswell, Robert E.
dc.creatorLiss, William J.
dc.creatorLomnicky, Gregg A.
dc.creatorDeimling, Elisabeth K.
dc.creatorHoffman, Robert L.
dc.creatorTyler, Torrey
dc.date.accessioned2008-01-28T19:42:35Z
dc.date.available2008-01-28T19:42:35Z
dc.date.issued1997
dc.identifier.issn0029-344X
dc.identifier.urihttp://hdl.handle.net/2376/1259
dc.description.abstractThe majority of lacustrine fish populations in the western USA are located far from the nearest road. Although mark-recapture techniques are widely accepted for estimating population abundance, these techniques have been broadly ignored for fisheries surveys in remote mountain lakes because of restricted access and associated logistical constraints. In this study, mark-recapture experiments were used to estimate fish population abundance in nine small ( lt 7 ha) lakes of the North Cascades National Park Service Complex. Fish in the mark sample were collected by angling, fin-clipped, and immediately released; fish were recaptured with variable mesh monofilament gill nets. A single-census Petersen estimator was used to calculate abundance in each lake, and assumptions for unbiased estimates appeared to be satisfied in most cases. Post-release mortality of angler-captured fish was low. The small size of these lakes in conjunction with the brief period of time allotted for each individual experiment apparently reduced the probability of unequal vulnerability and mortality for marked and unmarked fish. Single-census mark-recapture experiments appeared to provide reasonable estimates of population abundance in these mountain lakes. Resulting estimates furnish a substantial increase in information when compared to more ubiquitous assessments of relative abundance, but the logistical requirements are modest. We believe that this technique may be useful for survey purposes in other small, remote lakesen_US
dc.languageEnglish
dc.publisherWSU Press
dc.rightsIn copyright
dc.rightsopenAccess
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.rights.urihttp://purl.org/eprint/accessRights/OpenAccess
dc.subjectAQUACULTURE ORGANISMen_US
dc.subjectFIELD METHODen_US
dc.subjectFRESHWATER ECOLOGYen_US
dc.subjectMARK RECAPTUREen_US
dc.subjectNORTH CASCADES NATIONAL PARKen_US
dc.subjectPOPULATION ABUNDANCEen_US
dc.subjectWESTERN USAen_US
dc.titleUsing mark-recapture methods to estimate fish abundance in small mountain lakes
dc.typeText
dc.description.citationGresswell et al "Using mark-recapture methods to estimate fish abundance in small mountain lakes." Northwest Science. 1997; 71(1): 39-44


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  • Northwest Science
    Northwest Science features original research in the basic and applied sciences, with emphasis on the Pacific Northwest region of the United States and Canada.

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