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Visual Implant Elastomer and Anchor Tag Retention in Largemouth Bass
Author(s) -
Hartman Kyle J.,
Janney Eric C.
Publication year - 2006
Publication title -
north american journal of fisheries management
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.587
H-Index - 72
eISSN - 1548-8675
pISSN - 0275-5947
DOI - 10.1577/m04-166.1
Subject(s) - bass (fish) , micropterus , stocking , fishery , fish <actinopterygii> , retention time , retention rate , implant , logging , biology , zoology , chemistry , medicine , ecology , computer science , surgery , chromatography , computer security
Abstract We double‐marked largemouth bass Micropterus salmoides with Floy FD‐68B anchor tags and visible implant elastomer (VIE) marks before stocking to compare retention of the two marks for age‐0 (178 mm total length (TL)) and age‐1 (273 mm TL) largemouth bass. In a short‐term (31‐d) evaluation, retention rate of anchor tags was over 94% for each age‐class and retention of VIE marks was 98% in both age‐classes. In a longer‐term comparison of fish stocked into the Ohio River, retention was substantially higher for VIE marks (92.9%) than for anchor tags (42.9%) after 403 d (ages combined). Although anchor tags had high retention in two sizes of largemouth bass during the short‐term experiment, they should not be used in situations where accurate identification of marked fish is required for periods longer than 123 d.