Premium
Passive Monitoring of Migrating Adult Steelhead with PIT Tags
Author(s) -
McCutcheon Clinton S.,
Prentice Earl F.,
Park Donn L.
Publication year - 1994
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 - 10.1577/1548-8675(1994)014<0220:pmomas>2.3.co;2
Subject(s) - weir , transponder (aeronautics) , fish <actinopterygii> , fishery , rainbow trout , trap (plumbing) , shore , environmental science , marine engineering , hydrology (agriculture) , geography , engineering , meteorology , biology , cartography , geotechnical engineering , environmental engineering
In 1985, two independent passive integrated transponder (PIT) tag monitoring systems were installed at the exit area of the weir leading into a fish trap on the north‐shore fish ladder at Bonneville Dam, Columbia River. One hundred PIT‐tagged adult steelhead Oncorhynchus mykiss were released in groups of 10 into an enclosed area of the ladder downstream from the detectors. The tagged fish were detected after they volitionally swam through the weir and slid through the detection system at velocities of 0.6 m/s or greater. Overall PIT tag reading efficiency was 98% and no tag‐reading errors were recorded. Individual tag code, date, and time of the passage of each tagged fish were automatically recorded into a computer file and simultaneously printed onto a paper copy. These results suggest that PIT tag monitors of this design could be deployed at select adult passage facilities presently operating in the Columbia River Basin to interrogate returning PIT‐tagged adult salmonids.