Possible Alterations Caused by Temperature on Exploration Rhythms in Cyclope Neritea (1.) (Gastropoda: Prosobranchia)

Abstract

Some populations of Cyclope nerttea (L.) put in tanks subjected to different thermal conditions are observed over 24 hours periods; the per cent frequencies of emerging and burrowing animals are reported during both the light period and the dark period. The results show a possible influence by special thermoperiods on « emerging - burrowing « cycles of Cyclope. © 1977 Taylor & Francis Group, LLC.