title: Thermal tolerance of Limnoperna fortunei to gradual temperature increase and its applications for biofouling control in industrial and power plants.
abstract: The acute upper lethal temperature (AULT) at different rates of increase was evaluated as a tool for the design of cheaper and environmentally friendlier control strategies for the invasive bivalve Limnoperna fortunei. Survivorship of 6 ± 2 mm and 20 ± 2 mm mussels acclimated to 12, 23 and 28 ° C and subjected to different heating rates (1 ° C per 5, 15 and 30 min) was estimated in the laboratory. The temperatures required to kill 50% (LT(50)) and 100% (SM(100)) of the mussels, and the mean death temperature (MDT) varied between 42.2 and 51 ° C over 54 experiments. Heating rates significantly (p < 0.001) affected LT(50), SM(100), and MDT. AULT was not affected by mussel size and acclimation temperatures. Limnoperna appears to be more resistant to high temperatures than Dreissena polymorpha, a mussel invasive in the USA and Europe. Lethal temperatures of L. fortunei are within the current thermal operational industrial capacities, suggesting that heat treatment is a viable alternative for controlling its fouling in utility systems.
authors: Facultad de Ciencias Exactas y Naturales, Departamento de Ecología, Genética y Evolución, Universidad de Buenos Aires, Buenos Aires, Argentina. perepelizin@macn.gov.ar
authors: Pablo V
authors: PV
authors: Perepelizin
authors: Demetrio
authors: D
authors: Boltovskoy
mesh_terms: D000064:Acclimatization; D000818:Animals; D057219:Biofouling / Q000517:prevention & control*; D049879:Mytilidae / Q000502:physiology*; D011210:Power Plants; D013696:Temperature