Chemical alarm signaling by reticulate sculpins, Cottus perplexus

Citation
Dp. Chivers et al., Chemical alarm signaling by reticulate sculpins, Cottus perplexus, ENV BIOL F, 57(3), 2000, pp. 347-352
Citations number
28
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Aquatic Sciences
Journal title
ENVIRONMENTAL BIOLOGY OF FISHES
ISSN journal
0378-1909 → ACNP
Volume
57
Issue
3
Year of publication
2000
Pages
347 - 352
Database
ISI
SICI code
0378-1909(200003)57:3<347:CASBRS>2.0.ZU;2-S
Abstract
The distribution and extent of chemical alarm signaling systems among some families of fishes, including the Cottidae, remains unclear. In laboratory experiments, we tested whether reticulate sculpins, Cottus perplexus, respo nd to chemical alarm signals released by injured conspecifics. Sculpins dec reased movement following exposure to skin extracts from conspecifics, but did not respond to cues of syntopic speckled dace, Rhinichthyes osculus, or allotopic swordtails, Xiphophorous helleri. Additional tests demonstrated that the responses of sculpins to alarm cues were dependent on the hunger l evel of the test fish. Sculpins deprived of food for 2 days failed to respo nd to conspecific alarm cues, however, the same individuals fed to satiatio n did respond to alarm cues.