Response of barnacles to chlorine and heat treatment: An experimental study for power plant biofouling control

Sasikumar, N.; Nair, K.V.K.; Azariah, Jayapaul

doi:10.1080/08927019209386211

Cited by 6 publications

(3 citation statements)

References 9 publications

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“…Relatively small increases in ambient water temperature cause significant mortalities in the mussels; Mytilus edulis (Graham et al 1975;Jenner, 1982), Dreissena polymorpha (Claudi & Mackie 1994;Rajagopal et al 1997), Perna viridis (Rajagopal et al 1995a), P. indica (Rajagopal et al 1995c), Brachidontes striatulus, B. variabilis, Modiolus philippinarum and M. metcalfei (Rajagopal, 1997;Rajagopal et al 1999;Masilamoni et al 2002), barnacles (Graham et al 1975;Sasikumar et al 1992) and other marine species Rajagopal et al 2003). In most of the cases, it is also reported that the treatments that were effective against mussels were also successful against most other fouling organisms (Fischer et al 1984;Whitehouse et al 1985).…”

Section: Discussionmentioning

confidence: 96%

Factors influencing the upper temperature tolerances of three mussel species in a brackish water canal: Size, season and laboratory protocols

et al. 2005

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Mussels are the most problematic organisms encountered in the water intake systems of electrical power plants. Various fouling control measures are adopted, among which heat treatment is considered the relatively more attractive from economic and ecological points of view. Thermal tolerance experiments were carried out to determine the effects of mussel size (2-20 mm shell length), season (breeding vs non-breeding), nutritional status (fed vs non-fed), acclimation temperature (5-25 degrees C) and acclimation salinity (1-35%o) on the mortality pattern of three important mussel species, viz. a freshwater mussel Dreissena polymorpha, a brackish water mussel Mytilopsis leucophaeata and a marine mussel Mytilus edulis under different temperatures (36-41 degrees C). The mussels in the 10 mm size group exposed to 36 degrees C showed 100% mortality after 38 min (D. polymorpha), 84 min (M. edulis) and 213 min (M. leucophaeata). The effect of mussel size on M. edulis and M. leucophaeata mortality at different temperatures was significant, with the largest size group of mussels showing greater resistance, while no significant size-dependence was observed in the case of D. polymorpha. All the three mussel species collected during the non-breeding season (June-October). Nutritional status had no significant influence on the thermal tolerance of the three mussels; fed and non-fed mussels showed 100% mortality at comparable rates. Acclimation temperature had a significant effect on the mortality of all three species. Survival time at any given target temperature increased with increasing acclimation temperature. The acclimation salinity showed no significant effect on the thermal tolerance of the three mussel species. In comparison, M. leucophaeata was more tolerant to high temperature stress than the other two species. The present studies clearly show that various factors can influence the mortality of D. polymorpha, M. edulis and M. leucophaeata to elevated temperatures. The results, therefore, suggest that if heat treatment were to be used as a control measure for these mussels, it has to be employed judiciously, depending on the mussel species, mussel size, breeding season, water temperature and salinity.

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Section: Discussionmentioning

confidence: 96%

Factors influencing the upper temperature tolerances of three mussel species in a brackish water canal: Size, season and laboratory protocols

et al. 2005

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“…Temperature and dissolved oxygen were maintained between 28.9°C and 29.4°C and 5.4 mg/1 and 6.3 mg/1, respectively. The experiments were conducted in continuous once-through flow systems, following the procedures outlined by Sasikumar et al (1992). Seawater was stored in a 150 1 aquarium tank and chlorine solution prepared from bleaching powder was stored in a 2 1 Erlenmeyer flask.…”

Section: Lethal Responsementioning

confidence: 99%

Response of green mussel,Perna viridis(L.) to chlorine in the context of power plant biofouling control

Rajagopal

Venugopalan

Nair

et al. 1995

Marine and Freshwater Behaviour and Physiology

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Results of a study on lethal and sublethal responses of green mussel, Perna viridis exposed to different levels of chlorine, are presented. At 1 ppm chlorine residuals, 12 mm size group mussels showed 100% mortality in 504 hours (21 days) and 95 mm size group mussels in 816 hours (33 days). At relatively high levels of chlorine residuals (10 ppm), 100% mortality in 12 mm and 95 mm size groups took 30 and 48 hours, respectively. All size groups showed progressive reduction in physiological activities such as filtration rate, foot activity and byssus thread production when chlorine residuals were increased from 0 to 1.5 ppm. Reduction in physiological activities of mussels was strongly correlated with the concentration of chlorine.

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“…chlorine due to their less ability to perform anaerobic metabolism. Exposure to chlorine also caused early mortality in Juvenile barnacles (Sasikumar et al 1992a). This suggests that barnacle fouling control using chlorine in power plant cooling conduits would be more effective, if it is done when barnacles are at the juvenile stage.…”

Section: Figurementioning

confidence: 98%

Sublethal response of barnacles to chlorine: An experimental study for power plant biofouling control

Sasikumar

Azariah

Nair

1993

Marine Behaviour and Physiology

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Results of the study on sublethal responses of Megabalanus tintinnabulum, an acorn barnacle exposed to different levels of chlorine, is presented. In control, juvenile barnacles showed increased filtration rates, cirral activity and oxygen consumption per unit body weight as compared to larger barnacles. When both the size groups were exposed to chlorine levels, filtration rates and cirral activity declined. In larger barnacles the decline in filtration and cirral activity was less prominent. A decline in oxygen consumption observed in larger barnacles appears to be due to anaerobic metabolism under chlorinated conditions, when shell valves close. Juveniles appear to have normal oxygen consumption rates and thus may be more prone to stress.

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Response of barnacles to chlorine and heat treatment: An experimental study for power plant biofouling control

Cited by 6 publications

References 9 publications

Factors influencing the upper temperature tolerances of three mussel species in a brackish water canal: Size, season and laboratory protocols

Factors influencing the upper temperature tolerances of three mussel species in a brackish water canal: Size, season and laboratory protocols

Response of green mussel,Perna viridis(L.) to chlorine in the context of power plant biofouling control

Sublethal response of barnacles to chlorine: An experimental study for power plant biofouling control

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