Tag loss and short-term mortality associated with passive integrated transponder tagging of juvenile Lost River suckers

North American Journal of Fisheries Management
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Abstract

Passive integrated transponder (PIT) tags are commonly used to mark small catostomids, but tag loss and the effect of tagging on mortality have not been assessed for juveniles of the endangered Lost River sucker Deltistes luxatus. I evaluated tag loss and short-term (34-d) mortality associated with the PIT tagging of juvenile Lost River suckers in the laboratory by using a completely randomized design and three treatment groups (PIT tagged, positive control, and control). An empty needle was inserted into each positive control fish, whereas control fish were handled but not tagged. Only one fish expelled its PIT tag. Mortality rate averaged 9.8 ± 3.4% (mean ± SD) for tagged fish; mortality was 0% for control and positive control fish. All tagging mortalities occurred in fish with standard lengths of 71 mm or less, and most of the mortalities occurred within 48 h of tagging. My results indicate that 12.45- × 2.02-mm PIT tags provide a viable method of marking juvenile Lost River suckers that are 72 mm or larger.

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Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Tag loss and short-term mortality associated with passive integrated transponder tagging of juvenile Lost River suckers
Series title North American Journal of Fisheries Management
DOI 10.1080/02755947.2011.641067
Volume 31
Issue 6
Year Published 2011
Language English
Publisher Taylor & Francis
Publisher location London, UK
Contributing office(s) Western Fisheries Research Center
Larger Work Type Article
Larger Work Subtype Journal Article
Larger Work Title North American Journal of Fisheries Management
Country United States
State California;Oregon
Other Geospatial Upper Klamath Basin
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