title: Migratory-stage sea lamprey Petromyzon marinus stop responding to conspecific damage-released alarm cues after 4 h of continuous exposure in laboratory conditions.
abstract: 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.
authors.affiliation: Biology Department, Algoma University, 1520 Queen St East, Sault Ste Marie, ON, P6A 2G4, Canada.
authors.forename: I
authors.initials: I
authors.lastname: Imre
authors.affiliation: Biology Department, Algoma University, 1520 Queen St East, Sault Ste Marie, ON, P6A 2G4, Canada.
authors.forename: R T
authors.initials: RT
authors.lastname: Di Rocco
authors.affiliation: Biology Department, Algoma University, 1520 Queen St East, Sault Ste Marie, ON, P6A 2G4, Canada.
authors.forename: H
authors.initials: H
authors.lastname: McClure
authors.affiliation: USGS, Great Lakes Science Center, Hammond Bay Biological Station, 11188 Ray Road, Millersburg, MI, 49759, U.S.A.
authors.forename: N S
authors.initials: NS
authors.lastname: Johnson
authors.affiliation: Biology Department, Concordia University, 7141 Sherbrooke St West, Montreal, QC, H4B 1R6, Canada.
authors.forename: G E
authors.initials: GE
authors.lastname: Brown
mesh_terms: D025041:Animal Migration / Q000502:physiology*; D000818:Animals; D003463:Cues; D004924:Escape Reaction; D009812:Odorants; D055696:Olfactory Perception; D048428:Petromyzon / Q000502:physiology*
keywords: antipredator behaviour; avoidance response; chemical ecology; chemosensory alarm cues