PAGURIZED GASTROPOD SHELLS IN A NORTHEAST BRAZILIAN COASTAL LAGOON AT THE SEA-ESTUARY INTERFACE

Gastropods are known for the presence of calcareous shells, even after their death. The diversity this resource can be reflected in local living gastropods. These shells used by hermit crabs as protection and against desiccation. Coastal lagoons biodiversity hotspots site recruitment continent-sea connectivity, is sometimes altered connectivity events with adjacent areas. Therefore, we sought to make a list that evaluates seasonal variation demonstrates pattern shell use crab species. samplings were standardized six monthly repeated transects from February 2013 January 2014, using fishing net trawl. identified species level quantified. Diversity indexes calculated, seasonally, assemblage shells. Hermit 14 gastropod which Vitta virginea Phrontis vibex most abundant frequent. indicated temporal April month showing highest difference diversity. A reflection change surface geomorphology, caused King Tide, it’s discharge carrying empty open sea. usage patterns these biogenic remains reveal strategies decreased intra/interspecific competition. Furthermore, described first record Brazilian Northeast C. symmetricus, its taxonomic resurgence.