Daily rhythm of feeding activity of a freshwater crab Dilocarcinus pagei pagei in National Park Río Pilcomayo, Formosa, Argentina

WILLINER V.; COLLINS P.

Modern approaches to the study of Crustacea.

Kluver Academic and Plenum Publishers

Año: 2002; p. 171 - 178

All ecosystems exhibit a complex periodical variation. Variations in activity rhythms over a time period also differ among species. Dilocarcinus pagei pagei (Simpson) is one the several Argentinean freshwater crabs; its geographical distribution extends from northeastern Argentina to Buenos Aires. The aim of this study was to examine the diet composition and its possible daily variation in the freshwater crab D. pagei pagei. The obtained information may be an essential start point to study other aspects of the ecology and conservation of freshwater crabs.