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Titolo:
RESPONSE OF MUSSEL BRACHIDONTES STRIATULUS TO CHLORINATION - AN EXPERIMENTAL-STUDY
Autore:
RAJAGOPAL S; NAIR KVK; VANDERVELDE G; JENNER HA;
Indirizzi:
CATHOLIC UNIV NIJMEGEN,FAC SCI,DEPT ECOL,AQUAT ECOL LAB NL-6525 ED NIJMEGEN NETHERLANDS UNIV MADRAS,DEPT ZOOL MADRAS 600025 TAMIL NADU INDIA INDIRA GANDHI CTR ATOM RES,WATER & STEAM CHEM LAB APCD BARC KALPAKKAM603102 TAMIL NADU INDIA KEMA ENVIRONM RES NL-6800 ET ARNHEM NETHERLANDS
Titolo Testata:
Aquatic toxicology
fascicolo: 2, volume: 39, anno: 1997,
pagine: 135 - 149
SICI:
0166-445X(1997)39:2<135:ROMBST>2.0.ZU;2-J
Fonte:
ISI
Lingua:
ENG
Soggetto:
DREISSENA-POLYMORPHA; ZEBRA MUSSEL; TOXICITY;
Keywords:
POWER PLANT; BIOFOULING; CONTROL MEASURES; CHLORINATION; MORTALITY; BRACHIDONTES STRIATULUS; PHYSIOLOGICAL FUNCTIONS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
40
Recensione:
Indirizzi per estratti:
Citazione:
S. Rajagopal et al., "RESPONSE OF MUSSEL BRACHIDONTES STRIATULUS TO CHLORINATION - AN EXPERIMENTAL-STUDY", Aquatic toxicology, 39(2), 1997, pp. 135-149

Abstract

Though the brackish-water mussel, Brachidontes striatulus (Hanley) (syn. Modiolus str iatulzrs) is an important fouling animal in power station cooling circuits, there are no published studies on the toleranceof this species to chlorination. Mortality pattern as well as physiological behaviour (byssus thread production, foot activity index and filtration rate) of three different size groups (7, 18 and 25 mm shell length) of B. striatulus, were studied at different chlorine concentrations (0-5 mg l(-1)). At 1 mg l(-1) chlorine residual, 7 mm size group mussels showed 100% mortality in 468 h (20 days) and 25 mm size group mussels in 570 h (24 days). At relatively high levels of chlorine residuals (5 mg l(-1)), 100% mortality in 7 and 25 mm size groups took 102and 156 h, respectively. The exposure time to chlorine required for 100% mortality of B. striatulus is much lower than that reported for some other common fouling mussels. Chlorine concentration significantly affected the mean time of death for all size groups of mussels. All size groups showed progressive reduction in physiological activities such as filtration rate, foot activity index and byssus thread productionwhen chlorine residuals were increased from 0 to 1.5 mg l(-1). Reduction in physiological activities of mussels was strongly correlated with the concentration of chlorine. (C) 1997 Elsevier Science B.V.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/09/20 alle ore 12:17:36