Naslov
Fitness recovery and two-generation phenotypic plasticity in the freshwater snail Planorbarius corneus L. exposed to hyperosmotic solutions

Autori
Mažuran, Neda ; Hršak, Vladimir ; Kovačević, Goran

Vrsta, podvrsta
Radovi u časopisima, znanstveni

Izvornik
Periodicum biologorum (2019)

Status rada
Poslan

Ključne riječi
chronic exposure ; hyperosmotic salts ; calcium chloride and bromide ; F1 offspring acclimation ; fecundity ; growth

Sažetak
Hyperosmotic solutions of calcium chloride and calcium bromide, extensively used in the oil industry, can be a source of aquatic pollution. In the present study, we investigated whether the freshwater snail Planorbarius corneus L., previously chronically exposed to toxic concentrations of these chemicals, can recover fecundity and growth in clean water. We also examined if a higher tolerance could be induced in F1 offspring after parental and developmental chronic exposure to the chemicals. The fitness-recovery study showed a high compensatory potential of the snails to recover fitness through increased reproduction and growth. In the tolerance study, we observed increased tolerance in F1 offspring in hyperosmotic solutions of calcium chloride. However there was no significant improvement of reproduction performance in bromide-containing solutions. Increased tolerance was associated with a redirection of resources from growth to maintenance and survival.

Izvorni jezik
Engleski

Znanstvena područja
Biologija

POVEZANOST RADA