The effects of 2 mu M Hg++ on the ethogram of Euplotes vannus (Ciliata, Hypotrichida)

Autor(en): Ricci, N
Luvera, G
Cacciatori, M
Banchetti, R
Lueken, W
Stichwörter: BEHAVIOR; behaviour; BIFARIA STOKES CILIATA; biomonitoring; CRASSUS; ethogram; Hg++; Microbiology; pollution; PROTOZOA; SPECIES PROBLEM
Erscheinungsdatum: 1997
Herausgeber: GUSTAV FISCHER VERLAG
Journal: EUROPEAN JOURNAL OF PROTISTOLOGY
Volumen: 33
Ausgabe: 1
Startseite: 63
Seitenende: 71
Zusammenfassung: 
Strains of Euplotes vannus (a marine hypotrichous ciliate) were treated with 2 mu M Hg++. The ethograms of treated and control populations differ due to several traits, which are qualitatively described and quantitatively measured: (a) the creeping of treated populations is more uniform and continuous than that of controls; (b) typical behavioural patterns of controls (the `'slow down'' and the bursts of `'Side Stepping Reaction'' - SSR) disappear completely in treated ciliates; (c) the SSR of treated organisms has an average rotation angle of 163 degrees (controls: 84 degrees); (d) the velocity decreases significantly in treated cells (340 mu m/s vs 450 mu m/s). These results are discussed from the point of view of their survival significance.
ISSN: 09324739
DOI: 10.1016/S0932-4739(97)80021-1

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