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Titolo:
Environmental factors and chemical agents affecting the growth of the pathogenic marine ciliate Uronema nigricans
Autore:
Crosbie, PBB; Munday, BL;
Indirizzi:
Univ Tasmania, Sch Aquaculture, Launceton, Tas 7250, Australia Univ Tasmania Launceton Tas Australia 7250 Launceton, Tas 7250, Australia
Titolo Testata:
DISEASES OF AQUATIC ORGANISMS
fascicolo: 3, volume: 36, anno: 1999,
pagine: 213 - 219
SICI:
0177-5103(19990531)36:3<213:EFACAA>2.0.ZU;2-I
Fonte:
ISI
Lingua:
ENG
Soggetto:
HISTOPHAGOUS CILIATE; N-SP;
Keywords:
Uronema nigricans; opportunistic pathogen; growth response; chemotherapeutants;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
19
Recensione:
Indirizzi per estratti:
Indirizzo: Crosbie, PBB Univ Tasmania, Sch Aquaculture, POB 1214, Launceton, Tas 7250, Australia Univ Tasmania POB 1214 Launceton Tas Australia 7250 Australia
Citazione:
P.B.B. Crosbie e B.L. Munday, "Environmental factors and chemical agents affecting the growth of the pathogenic marine ciliate Uronema nigricans", DIS AQU ORG, 36(3), 1999, pp. 213-219

Abstract

The scuticociliate Uronema nigracans is an opportunistically parasitic marine ciliate known to cause disease in some aquacultural environments with epizootics documented from marine larval rearing systems, marine aquaria andin southern bluefin tuna Thunnus macoyii growout enclosures. This study examined growth responses of laboratory cultures of the ciliate and prey bacteria to variations in temperature and salinity, and the efficacy of potential chemotherapeutants for control of U. nigricans infections. Differences in ciliate growth responses were marginal at temperatures of 10 to 25 degrees C and at salinities between 15 and 35 ppt, though 3.5 ppt or less was lethal. Ciliates were found to be sensitive to fluctuations in bacterial densities, which may be a factor in the seasonal occurrence of the ciliate-related disease in tuna. Commonly used chemotherapeutants such as formalin, malachite green and hydrogen peroxide were all effective against the ciliate during in vitro trials.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 14/07/20 alle ore 10:03:07