Behavioral response to hydrostatic pressure in larvae of two species of xanthid crabs

Autor:	Diana E. Wheeler, C. E. Epifanio
Rok vydání:	1978
Předmět:	Larva geography geography.geographical_feature_category Ecology biology Hydrostatic pressure Pelagic zone Estuary Aquatic Science biology.organism_classification Rhithropanopeus harrisii Waves and shallow water Biological dispersal Ecology Evolution Behavior and Systematics Leptodius
Zdroj:	Marine Biology. 46:167-174
ISSN:	1432-1793 0025-3162
Popis:	Responses of pelagic larvae of two species of xanthid crabs to manipulations of hydrostatic pressure were examined and compared. One species, Rhithropanopeus harrisii (Gould), is a temperate estuarine species, while the other, Leptodius floridanus (Gibbes), inhabits shallow water and reefs in tropical and subtropical regions. All zoeal stages of R. harrisii detected pressure stimuli presented in increments as small as 0.025 atm. Both Stage I and II zoeae of L. floridanus responded to pressure stimuli presented in increments of 0.1 atm. Stage I responded when pressure was changed by the smallest increment tested, 0.025 atm, but Stage II did not. L. floridanus zoeal Stages III and IV, however, did not change vertical position relative to control larvae when subjected to pressure stimuli. The capacity of R. harrisii zoeae to respond to changes in hydrostatic pressure may be related to their retention in the estuarine environment. In L. floridanus, a non-estuarine species, the pressure response is important only in the first zoeal stage and may function promarily in dispersal.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7af6a13efca6598fe1f733202779b7f0 https://doi.org/10.1007/bf00391533 Zobrazit plný text záznamu Full text from SpringerLink