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Effects of Repeated Electroshocking on Growth of Bluegill X Green Sunfish Hybrids
Author(s) -
Gatz A. John,
Adams S. Marshall
Publication year - 1987
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 - 10.1577/1548-8659(1987)7<448:eoreog>2.0.co;2
Subject(s) - lepomis , lepomis macrochirus , fish <actinopterygii> , centrarchidae , biology , fishery , hybrid , zoology , ecology , agronomy , micropterus
Electroshocking hybrid sunfish (bluegill Lepomis macrochirus x green sunfish Lepomis cyanellus) once a week for 3 months in the laboratory reduced their growth relative both to fish shocked less frequently and to unshocked controls. Although it remains unknown what minimal frequency of electroshocking will negatively affect growth of free‐living fish, prudent field procedures would maximize the time intervals between repeated exposures to electroshocking.