Data base of Libinia ferreirae free-living and associated to the medusa, during the year 2013-2014.

This data was used for describe the Libinia ferreirae crab behaviour during the development, because this crab live associated with the medusa during the juvenile phase and during the adult life they live in the sea benthos, being a host of differents epibionts.
This data showed the symbiotic relationship for the crab Libinia ferreirae with the medusa Lychnorhiza lucerna. This data present size, weight and occurence for this species during one year in Cananéia, São Paulo, Brazil. Additionaly, had the data for food itens by the relative contribution of each food category (in relation to the total volume of each stomach) by a classification from 1 to 10.