Behavioural responses of Carcinus mediterraneus Czerniavsky, 1884 to changes in salinity
Year: 1991
Type: article
Abstract: [EN] Behaviouralmechanisms were considered whereby Carcinus mediterraneus populationsare maintained in the deltaic bays of the Ebro Delta, E Spain, at salinities inthe range of 23-35 ppt and are absent from 38 ppt seawater in the adjacentMediterranean Sea. When exposed experimentally to cycles of salinity changefrom 38 ppt to 17 ppt, C. mediterraneus responded with increasedlocomotor activity as salinity increased and decreased around a value of approximately23 ppt. It is suggested that these responses permit the avoidance of freshwaterand of full seawater at 38 ppt in the open Mediterranean. Carcinusmediterraneus exhibit only circadian, not circatidal, free-runninglocomotor rhythmicity which is uninfluenced by simulated tidal cycles ofsalinity change
Authors: C. G. Warman, Pere Abelló, Ernest Naylor
Language: English
Subfield: Ecology
Field: Environmental Science
Domain: Physical Sciences
SDG: Life below water
Open Access status: green
OpenAlex ID: W29567037