Evaluation of short-term handling and tagging mortality of cutthroat trout at Florence Lake, southeast Alaska, 1998
By: by Roger D. Harding.
Contributors: Alaska. Division of Sport Fish.
Series: Fishery data series -- no. 99-24.
Publisher: Alaska Dept. of Fish and Game, Division of Sport Fish
Published: 1999
Place of publication: Anchorage
Language: eng
Number of pages: 12
Subjects: Cutthroat trout -- Alaska -- Florence Lake -- Mortality.; Cutthroat trout -- Alaska -- Florence Lake -- Statistics.; Fish populations -- Alaska -- Florence Lake -- Measurement.
Description: In response to observed mortality of cutthroat trout Oncorhynchus clarki during a mark-recapture experiment at Turner Lake, a study was initiated to estimate, identify and reduce short-term handling and tagging induced mortality. The study was conducted at Florence Lake between August 25 and 28, 1998. Cutthroat trout were tagged using techniques and tag types that have been employed over the last several years in Southeast Alaska. Impacts of various combinations of passive integrated transponder (PIT), visual implant (VI), and anchor T-bar tags with adipose and left axillary finclips on short-term mortality were tested. Analysis suggests that fish size and the order in which the fish were sampled (sequence order) were the most important variables affecting mortality probability. High water temperatures and extensive handling of fish at Turner Lake may also have contributed to the observed mortality at that site.
Notes: "October 1999."

Includes bibliographical references (p. 9).

Also issued online.