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Movements of Grass Carp, Ctenopharyngodon idella, in an Open Reservoir System as Determined by Underwater Telemetry
Author(s) -
Nixon David E.,
Miller Robert L.
Publication year - 1978
Publication title -
transactions of the american fisheries society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.696
H-Index - 86
eISSN - 1548-8659
pISSN - 0002-8487
DOI - 10.1577/1548-8659(1978)107<146:mogcci>2.0.co;2
Subject(s) - grass carp , telemetry , fishery , underwater , open sea , environmental science , biology , fish <actinopterygii> , oceanography , geology , engineering , telecommunications
Ultrasonic transmitters were placed in the peritoneal cavity of twelve adult grass crap in a Florida reservoir. Tagged grass crap ranged in size from 3.68 kg to 12.72 kg. No mortality of tagged grass carp was observed, but some difficulty was encountered with sound reception due to heavy vegetation and thermoclines. Fish took long rest periods between moves during both day and night. They were more active during the day than at night, with water temperatures limiting activity more than any other parameter tested. Displacement ranged from 182.9 m to 18,292.6 m.