Effect of hydrodynamics on prey-predator interaction. Results of flume experiments.

Citation
N. Desroy et C. Retiere, Effect of hydrodynamics on prey-predator interaction. Results of flume experiments., CR AC S III, 323(6), 2000, pp. 565-572
Citations number
30
Categorie Soggetti
Multidisciplinary,"Experimental Biology
Journal title
COMPTES RENDUS DE L ACADEMIE DES SCIENCES SERIE III-SCIENCES DE LA VIE-LIFE SCIENCES
ISSN journal
07644469 → ACNP
Volume
323
Issue
6
Year of publication
2000
Pages
565 - 572
Database
ISI
SICI code
0764-4469(200006)323:6<565:EOHOPI>2.0.ZU;2-A
Abstract
Coupling effects of hydrodynamics and predatory activity of Nepthys homberg ii (Savigny) (Polychaeta: Nephtyidae) on emigration of Hediste diversicolor (O.F Muller) (Polychaeta: Nereidae) recruits were assessed in a flume. Exp eriments carried out in still water conditions and in the flume flow showed that predatory activity of N. hombergii is independent of the presence or the absence of flow and does not statistically influence the recruit emigra tion rate. It appears, however, that hydrodynamics is an inhibiting factor for the emigration of H. diversicolor which occurs in the absence of flow. The comparison of these results with literature data suggests that recruits could use hydrodynamics to leave an unsuitable habitat according to the sp ecies mobility range. (C) 2000 Academie des sciences/Editions scientifiques et medicales Elsevier SAS.