Cutthroat trout studies at Virginia Lake, southeast Alaska

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Cutthroat trout studies at Virginia Lake, sou ...
Glenn M. Freeman, Glenn M. Fre ...
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Last edited by WorkBot
December 15, 2009 | History

Cutthroat trout studies at Virginia Lake, southeast Alaska

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Angler reactions to restrictive harvest regulations for cutthroat trout Oncorhynchus clarki at Virginia Lake in Southeast Alaska prompted an examination of the population status for the species from 1995 through 1997. A study to estimate size composition and abundance using a two-event (Petersen/Darroch) closed population (CP) model was conducted in 1995. Sampling was extended in 1996 and 1997 to permit use of a Jolly-Seber (JS) estimator to estimate abundance in 1996. An estimated 6,810 (SE = 256) fish were present in 1995 under the two-event CP model, and 3,620 (SE = 415) were present in 1996 under the JS model. The JS estimate of abundance is biased low because fish were spawning in streams during the 1996 and 1997 sampling events and thus were unavailable for sampling. Only 1 percent of the cutthroat sampled during the study were larger than the minimum 14-in length limit (> 336 mm fork length) established for harvest in the sport fishery at Virginia Lake.

Publish Date
Language
English
Pages
21

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Edition Availability
Cover of: Cutthroat trout studies at Virginia Lake, southeast Alaska
Cutthroat trout studies at Virginia Lake, southeast Alaska
1998, Alaska Dept. of Fish and Game, Division of Sport Fish
in English

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Book Details


Edition Notes

"December 1998."

Includes bibliographical references (p. 15).

Also issued online.

Published in
Anchorage
Series
Fishery data series -- no. 98-42.

Classifications

Library of Congress
SH11 .A7542 no. 98-42

The Physical Object

Pagination
ii, 21 p. :
Number of pages
21

ID Numbers

Open Library
OL15551894M

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December 15, 2009 Edited by WorkBot link works
September 20, 2008 Created by ImportBot Imported from Oregon Libraries MARC record