Predator odor recognition and antipredatory response in fish : does the prey know the predator diel rhythm?
Identifieur interne : 000813 ( Main/Exploration ); précédent : 000812; suivant : 000814Predator odor recognition and antipredatory response in fish : does the prey know the predator diel rhythm?
Auteurs : Hannu Ylönen [Finlande] ; Raine Kortet [Finlande] ; Janne Myntti [Finlande] ; Anssi Vainikka [Suède]Source :
- Acta oecologica : (Montrouge) [ 1146-609X ] ; 2007.
Descripteurs français
- Pascal (Inist)
English descriptors
- KwdEn :
Abstract
We studied in a laboratory experiment using stream tanks if two percid prey fish, the perch (Perca fluviatilis) and the ruffe (Gymnocephalus cernuus), can recognize and respond to increased predation risk using odors of two piscivores, the pike (Esox lucius) and the burbot (Lota lota). Burbot is night-active most of the year but pike hunts predominantly visually whenever there is enough light. Perch is a common day-active prey of pike and dark-active ruffe that of burbot. We predicted that besides recognizing the predator odors, the prey species would respond more strongly to odors of the predator which share the same activity pattern. Both perch and ruffe clearly responded to both predator fish odors. They decreased movements and erected the spiny dorsal fins. Fin erection showed clearly the black warning ornamentation in the fin and thus erected fin may function besides as mechanical defense also as warning ornament for an approaching predator. No rapid escape movements were generally observed. Both perch and ruffe responded more strongly to pike odor than to burbot. There were no clear differences in response between day and night. In conclusion, we were able to verify clear predator odor recognition by both prey fish. Both perch and ruffe responded to both predator odors and it seemed that pike forms a stronger threat for both prey species. Despite of diel activity differences both perch and ruffe used the same antipredatory strategies, but the day-active perch seemed to have a more flexible antipredatory behavior by responding more strongly to burbot threat during the night when burbot is active.
Affiliations:
- Finlande, Suède
- Finlande-Centrale, Uusimaa
- Helsinki, Jyväskylä
- Université d'Helsinki, Université de Jyväskylä
Links toward previous steps (curation, corpus...)
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Le document en format XML
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Box 35</s1><s2>40014 Jyväskyld</s2><s3>FIN</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>Finlande</country><wicri:noRegion>40014 Jyväskyld</wicri:noRegion><orgName type="university">Université de Jyväskylä</orgName><placeName><settlement type="city">Jyväskylä</settlement><region type="région" nuts="2">Finlande-Centrale</region></placeName></affiliation></author><author><name sortKey="Kortet, Raine" sort="Kortet, Raine" uniqKey="Kortet R" first="Raine" last="Kortet">Raine Kortet</name><affiliation wicri:level="4"><inist:fA14 i1="02"><s1>Behaviour, Ecology and Evolution Team (Integratiue Ecology Unit), Department of Biological and Environmental Sciences, University of Helsinki, P.O. Box 65</s1><s2>00014 Helsinki</s2><s3>FIN</s3><sZ>2 aut.</sZ></inist:fA14><country>Finlande</country><wicri:noRegion>00014 Helsinki</wicri:noRegion><orgName type="university">Université d'Helsinki</orgName><placeName><settlement type="city">Helsinki</settlement><region type="région" nuts="2">Uusimaa</region></placeName></affiliation></author><author><name sortKey="Myntti, Janne" sort="Myntti, Janne" uniqKey="Myntti J" first="Janne" last="Myntti">Janne Myntti</name><affiliation wicri:level="4"><inist:fA14 i1="01"><s1>Department of Biological and Environmental Science, University of Jyväskylä, P.O. Box 35</s1><s2>40014 Jyväskyld</s2><s3>FIN</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>Finlande</country><wicri:noRegion>40014 Jyväskyld</wicri:noRegion><orgName type="university">Université de Jyväskylä</orgName><placeName><settlement type="city">Jyväskylä</settlement><region type="région" nuts="2">Finlande-Centrale</region></placeName></affiliation></author><author><name sortKey="Vainikka, Anssi" sort="Vainikka, Anssi" uniqKey="Vainikka A" first="Anssi" last="Vainikka">Anssi Vainikka</name><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Institute of Coastal Research, Swedish Board of Fisheries, Box 109</s1><s2>74071 Öregrund</s2><s3>SWE</s3><sZ>4 aut.</sZ></inist:fA14><country>Suède</country><wicri:noRegion>74071 Öregrund</wicri:noRegion></affiliation></author></analytic><series><title level="j" type="main">Acta oecologica : (Montrouge)</title><title level="j" type="abbreviated">Acta oecol. : (Montrouge)</title><idno type="ISSN">1146-609X</idno><imprint><date when="2007">2007</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Acta oecologica : (Montrouge)</title><title level="j" type="abbreviated">Acta oecol. : (Montrouge)</title><idno type="ISSN">1146-609X</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Antipredator behavior</term><term>Behavior</term><term>Esox lucius</term><term>Freshwater environment</term><term>Gymnocephalus cernuus</term><term>Lota lota</term><term>Odor</term><term>Perca fluviatilis</term><term>Pisces</term><term>Piscivorous</term><term>Predation risk</term><term>Predator</term><term>Prey</term><term>Recognition</term><term>Rhythm</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Prédateur</term><term>Odeur</term><term>Reconnaissance</term><term>Pisces</term><term>Proie</term><term>Rythme</term><term>Risque prédation</term><term>Comportement</term><term>Comportement antiprédateur</term><term>Piscivore</term><term>Milieu eau douce</term><term>Gymnocephalus cernuus</term><term>Perca fluviatilis</term><term>Esox lucius</term><term>Lota lota</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">We studied in a laboratory experiment using stream tanks if two percid prey fish, the perch (Perca fluviatilis) and the ruffe (Gymnocephalus cernuus), can recognize and respond to increased predation risk using odors of two piscivores, the pike (Esox lucius) and the burbot (Lota lota). Burbot is night-active most of the year but pike hunts predominantly visually whenever there is enough light. Perch is a common day-active prey of pike and dark-active ruffe that of burbot. We predicted that besides recognizing the predator odors, the prey species would respond more strongly to odors of the predator which share the same activity pattern. Both perch and ruffe clearly responded to both predator fish odors. They decreased movements and erected the spiny dorsal fins. Fin erection showed clearly the black warning ornamentation in the fin and thus erected fin may function besides as mechanical defense also as warning ornament for an approaching predator. No rapid escape movements were generally observed. Both perch and ruffe responded more strongly to pike odor than to burbot. There were no clear differences in response between day and night. In conclusion, we were able to verify clear predator odor recognition by both prey fish. Both perch and ruffe responded to both predator odors and it seemed that pike forms a stronger threat for both prey species. Despite of diel activity differences both perch and ruffe used the same antipredatory strategies, but the day-active perch seemed to have a more flexible antipredatory behavior by responding more strongly to burbot threat during the night when burbot is active.</div></front></TEI><affiliations><list><country><li>Finlande</li><li>Suède</li></country><region><li>Finlande-Centrale</li><li>Uusimaa</li></region><settlement><li>Helsinki</li><li>Jyväskylä</li></settlement><orgName><li>Université d'Helsinki</li><li>Université de Jyväskylä</li></orgName></list><tree><country name="Finlande"><region name="Finlande-Centrale"><name sortKey="Ylonen, Hannu" sort="Ylonen, Hannu" uniqKey="Ylonen H" first="Hannu" last="Ylönen">Hannu Ylönen</name></region><name sortKey="Kortet, Raine" sort="Kortet, Raine" uniqKey="Kortet R" first="Raine" last="Kortet">Raine Kortet</name><name sortKey="Myntti, Janne" sort="Myntti, Janne" uniqKey="Myntti J" first="Janne" last="Myntti">Janne Myntti</name></country><country name="Suède"><noRegion><name sortKey="Vainikka, Anssi" sort="Vainikka, Anssi" uniqKey="Vainikka A" first="Anssi" last="Vainikka">Anssi Vainikka</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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