The main aim of the present study was to determine the effect of low salinity conditions (3 PSU and 7 PSU) on the hatching success, growth and mortality of Orconectes limosus. The results revealed that berried females survived exposure to salinities of 3 PSU and 7 PSU whilst incubating their eggs. The reproductive success reached 100% at both salinities. The length increment of young crayfish per molt was larger at 7 PSU than at 3 PSU -but their condition was affected by higher salinity. The mortality among juveniles reached approximately 50% within 5 weeks of hatching at both salinities.

The aim of this work was to assess the adaptive capabilities of the spiny-cheek crayfish

The present paper reports on the occurrence of the epibiotic ciliates of the family Folliculinidae Dons on the American crayfish Orconectes limosus (Raf., 1817). This is the first report of folliculinid ciliates from coastal waters of Puck Bay observed on animal substrata.