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

Abstract

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.

Physiological effects of biocide on marine bivalve blue mussels in context prevent macrofouling

“…In the earliest experiments, comparable mortality responses were observed between fed (mixed algal culture) and non-fed Brachidontes varoabilis, when exposed to chlorination. Similar observations were also reported earlier for P. viridis (Rajagopal et al 1995), B. striatulus (Rajagopal et al 1997), and P. perna (Rajagopal et al 2003a, b). Therefore, Mytilus edulis used in the present study were not fed during the course of the experiment.…”

“…Byssus thread production was determined following procedures outlined by Van Winkle (1970) and Rajagopal et al (1995). After 48 h of acclimation, one mussel was placed in a 1 l glass beaker containing 0.75 L of seawater of known peroxide concentration (1 mussel per experiment × 5 peroxide concentrations (including control) × 2 size groups × 8 replicate) = 80 mussels).…”

“…There are several published reports available on the response of other common tropical fouling mussels such as P. viridis, P. perna, B. striatulus, and M. philippinarum to chlorine (Rajagopal et al 1997(Rajagopal et al , 1995Rajagopal et al 2003a, b).…”

Greening of the coasts: a review of the Perna viridis success story

“…The byssus consists of (Rajagopal et al 1995a) and Perna perna (Rajagopal et al 1995b) at several high temperatures. Mortality data are expressed as mean±SD (n=36) of six replicate experiments (n=6 in each experiment).…”

“…The mussel is quite hardy and individuals have been reported to do well in artificial seawater for more than 6 months (Nishida et al 2003). P. viridis tolerates a temperature range of 15 -32.5°C without much problem (Rajagopal et al 1995a). The species can survive a temperature of 39°C for about 200 min (Figure 7).…”