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Titolo:
Can copepods differentiate prey from predator hydromechanically?
Autore:
Hwang, JS; Strickler, R;
Indirizzi:
Natl Taiwan Ocean Univ, Inst Marine Biol, Keelung 202, Taiwan Natl Taiwan Ocean Univ Keelung Taiwan 202 rine Biol, Keelung 202, Taiwan Univ Wisconsin, Great Lakes Water Inst, Milwaukee, WI 53204 USA Univ Wisconsin Milwaukee WI USA 53204 Water Inst, Milwaukee, WI 53204 USA
Titolo Testata:
ZOOLOGICAL STUDIES
fascicolo: 1, volume: 40, anno: 2001,
pagine: 1 - 6
SICI:
1021-5506(200101)40:1<1:CCDPFP>2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Soggetto:
CENTROPAGES-HAMATUS; CALANOID COPEPODS; 1ST ANTENNAE; TURBULENT ENVIRONMENT; FEEDING CURRENTS; MARINE COPEPODS; ACARTIA-TONSA; BEHAVIOR; MECHANORECEPTION; CAPTURE;
Keywords:
calanoids; Centropages hamatus; random flow; escape reactions; pattern recognition;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
37
Recensione:
Indirizzi per estratti:
Indirizzo: Hwang, JS Natl Taiwan Ocean Univ, Inst Marine Biol, Keelung 202, Taiwan Natl Taiwan Ocean Univ Keelung Taiwan 202 Keelung 202, Taiwan
Citazione:
J.S. Hwang e R. Strickler, "Can copepods differentiate prey from predator hydromechanically?", ZOOL STUD, 40(1), 2001, pp. 1-6

Abstract

Copepods use hydromechanical signals to detect prey and predators. However, little is known about their ability to differentiate prey from predators,neither from random water flow. We used laser- and video-optical equipmentwith a modified Schlieren optical pathway to observe a tethered copepod under variable hydrodynamic conditions. The results suggest that the copepod can distinguish between hydromechanical signals generated by an external source and those created by its own feeding current, even when these disturbances are within a similar speed range, as defined by measurements of spatial displacement of suspended particles. The data suggests that planktonic copepods may use a simple form of pattern recognition to distinguish between sources of signals: predators, prey, or random flow.

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Documento generato il 01/04/20 alle ore 11:28:42