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Resistance of the invasive pest mussel Limnoperna fortunei to anoxia: Implications for biofouling control
Author(s) -
Perepelizin Pablo V.,
Boltovskoy Demetrio
Publication year - 2011
Publication title -
journal ‐ american water works association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.466
H-Index - 74
eISSN - 1551-8833
pISSN - 0003-150X
DOI - 10.1002/j.1551-8833.2011.tb11422.x
Subject(s) - dreissena , mussel , corbicula fluminea , biofouling , biology , freshwater bivalve , invasive species , toxicology , bivalvia , pest analysis , zoology , mollusca , fishery , ecology , botany , genetics , membrane
In a study aimed at using oxygen deprivation as a control method for biofouling caused by the invasive bivalve Limnoperna fortunei , the authors estimated the survival rates of small (7 mm) and large (20 mm) mussels exposed to anoxia (below 0.16±0.02 mg/L dissolved oxygen) at 20 and 27°C under laboratory conditions. At 20°C 100% sample mortality (SM 100) of small mussels was attained in 20.7 days (LT 50 , lethal time to kill 50% of the mussels = 9.5 days) and large mussels in 29.3 days (LT 50 = 18.0 days). At 27°C, small and large mussels achieved SM 100 much faster (11.6 and 10.2 days) and had correspondingly lower LT50 values (4.7 days for both sizes). Mortality rates differed significantly between size classes at 20°C but not at 27°C. Comparison with other invasive mollusks indicated that L. fortunei is less resistant to anoxia than Corbicula fluminea but more resistant than Dreissena polymorpha. Thus it was concluded that oxygen deprivation may be a viable alternative for the control of mussel fouling in industrial installations.