Journal
JOURNAL OF FISH BIOLOGY
Volume 90, Issue 4, Pages 1297-1304Publisher
WILEY
DOI: 10.1111/jfb.13231
Keywords
antipredator behaviour; avoidance response; chemical ecology; chemosensory alarm cues
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Funding
- Great Lakes Fishery Commission
- Algoma University
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This study investigated the length of avoidance response of migratory-stage sea lamprey Petromyzon marinus exposed continuously to conspecific damage-released alarm cues for varying lengths of time in laboratory stream channels. Ten replicate groups of P. marinus, separated by sex, were exposed to either deionized water control or to P. marinus extract for 0, 2 or 4 h continuously. Petromyzon marinus maintained their avoidance response to the conspecific damage-released alarm cue after continuous exposure to the alarm cue for 0 and 2 h but not 4 h. Beyond being one of the first studies in regards to sensory-olfactory adaptation-acclimation of fishes to alarm cues of any kind, these results have important implications for use of conspecific alarm cues in P. marinus control. For example, continuous application of conspecific alarm cue during the day, when P. marinus are inactive and hiding, may result in sensory adaptation to the odour by nightfall when they migrate upstream. (C) 2016 The Fisheries Society of the British Isles.
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