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Winter movements of burbot ( Lota lota ) during an extreme drawdown in Bull Lake, Wyoming, USA
Author(s) -
Bergersen E. P.,
Cook M. F.,
Baldes R. J.
Publication year - 1993
Publication title -
ecology of freshwater fish
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 55
eISSN - 1600-0633
pISSN - 0906-6691
DOI - 10.1111/j.1600-0633.1993.tb00094.x
Subject(s) - drawdown (hydrology) , dusk , spring (device) , silt , fishery , habitat , environmental science , fish <actinopterygii> , hydrology (agriculture) , water level , nursery habitat , ecology , biology , geology , geography , aquifer , geomorphology , groundwater , mechanical engineering , geotechnical engineering , cartography , engineering
Winter movements of burbot ( Lota lota ) were monitored in Bull Lake, Wyoming during a record low water storage period in the winter of 1985–1986. Burbot with surgically implanted ultrasonic transmitters were commonly sedentary during the drawdown. The fish that did move were most active during dusk and at night in winter and during the day in spring. Burbot did not appear to occupy well defined home ranges or show discernible movement patterns. Movement into shallow water during winter was attributed to colder water temperatures and the onset of the spawning season. Burbot were always found associated with silt substrates during the drawdown. Aerial photographs of the exposed bottom revealed that virtually all suitable spawning and nursery habitat for burbot was eliminated by the 13.4‐m drawdown.