The sudden change to a considerably higher or lower salinity than the usual one cannot be compensated by the fish. If fish are transferred from water with a high conductivity (high salinity) into water with a lower conductivity without an adap- tation phase they will suffer from an osmo- tic shock (also the other way round).
El pez no puede compensar el cambio repentino a un contenido de sal claramente mayor o menor al acostumbrado. Si se trasladan peces de un agua con una con- ductividad elevada (alto contenido en sal) a un agua con una conductividad baja sin aclimatar- los previamente, sufren un shock osmótico (al igual que en el caso inverso).