Crustáceos decápodos associados aos bancos de Phragmatopoma caudata (Kröyer) (Polychaeta, Sabellariidae) na Praia de Caiobá, Matinhos, Paraná

Brachyuran and anomuran crabs associated with Schizoporella unicornis (Ectoprocta, Cheilostomata) from southeastern Brazil

“…Mantelatto and SouzaCarey (1998a, b) found 20 brachyuran species and 9 anomuran species in their study on S. unicornis realized at Itaguá Beach in Ubatuba, southeastern Brazil (Table II). This number of species is larger than those found by investigations of other biogenic substrata along the Brazilian coast (Bosa and Masunari 2002, Ribeiro et al 2003, Chintiroglou et al 2004. Structural complexity and abundance might explain differences among studies and remain to be studied in the future (Witman 1985, Thiel andBaeza 2001).…”

“…ALVES et al (Wirtz et al 2009) and bryozoans (Ferdeghini et al 2000, Morgado andTanaka 2001). However, some decapod groups seem to be preferentially associated with certain biogenic substrata, where they can reach high abundances, which may mean a close relationship among these associated species (e.g., sponges with pilumnid crabs and alpheid shrimps; Sargassum beds with epialtid crabs; Phragmatopoma reefs with porcellanid crabs, among others) (Micheletti-Flores and Negreiros-Fransozo 1999, Széchy et al 2001, Bosa and Masunari 2002, Ribeiro et al 2003. Exact knowledge of which species are involved in these symbiotic relationships could provide biological and ecological information concerning these decapods, and also regarding the traits of the supposed dependence relationships between the decapods and their biogenic substrata.…”

Differential habitat use by demographic groups of the redfinger rubble crab Eriphia gonagra (Fabricius, 1781)

“…The advantage of shelter was also suggested by Spivak et al (1994) to account for the extremely high density of juveniles of Cyrtograpsus angulatus (Dana, 1851) found in colonies of Ficopomatus enigmaticus (Fauvel, 1923). Bosa and Masunari (2002) recorded a high percentage of juveniles of Petrolisthes armatus and Panopeus americanus associated with P. caudata at Caiobá Beach (Matinhos, state of Paraná, Brazil), compared with populations from rocky shores, which was related to the existence of appropriate microhabitats for the settlement of megalopae on sabellariid banks. Similarly, Logan Koch (1982) observed preferential recruitment of several species in locations with greater topographic complexity at the millimetre scale.…”

“…This kind of differential utilisation of food-habitat may be the key to the successful coexistence of diverse species in the same habitat. In addition, the sand banks of P. caudata constitute an important substratum for crustacean decapods, where megalopae of several species are intensively recruited, while juveniles and small adults share the substratum, searching for food and shelter from wave action (Bosa and Masunari, 2002). Hall et al (1991) stated that physical perturbations in benthic habitats influence the structure of marine communities, and in shallow coastal environments, the macrobenthic community is subject to a variety of changes.…”

Snapping shrimps of the genus Alpheus Fabricius, 1798 from Brazil (Caridea: Alpheidae): updated checklist and key for identification

“…We listed in previous records only material examined by Christoffersen (1984) and by us (reported by Almeida et al, 2006Almeida et al, , 2012, and the references from Brazil based on these reports (Christoffersen, 1998;Barros and Pimentel, 2001;. All other records (e.g., Kingsley, 1878b; Moreira, 1901;Luederwaldt, 1929;Oliveira, 1940;Coelho, 1964Coelho, , 1966aCoelho, , 1966bCoelho et al, 1970Coelho et al, , 1986Coelho and Ramos, 1972;Gomes Corrêa, 1972;Ramos-Porto et al, 1978;Abreu, 1980;Ramos-Porto, 1980a, 1995;Fausto Filho, 1980;RamosPorto, 1980;Coelho and Coelho-Santos, 1990;Sousa et al, 2000;Bosa and Masunari, 2002;Ferreira and Sankarankutty, 2002;Young and Serejo, 2005;Mortari and Negreiros-Fransozo, 2007;Souza et al, 2011) must be treated with much caution because they potentially include misidentified material. The records of Smith (1869) from Bahia, Rathbun (1900) from Paraíba (in part), and Luederwaldt (1919) from São Paulo (in part) correspond to species of the A. armillatus complex (see Christoffersen, 1984;Anker, 2012 (Crosnier and Forest, 1966;Christoffersen, 1979;.…”