Francisco Barros1, Marcos Krull2, Amanda Martins2 and Laboratório de Ecologia Bentônica, (1)UFBA, Instituto de Biologia/CIENAM/INCT-INTREE, Salvador, Brazil, (2)UFBA Federal University of Bahia, Instituto de Biologia/CIENAM/INCT-INTREE, Salvador, Brazil