Felippe Alexandre Daros

Fishes of Paranaguá Estuarine Complex, South West Atlantic

The objective of this work was to present an updated checklist of the currently known fishes in the Paranagua Estuarine Complex (PEC) and provides comments on conservation status for the treated species. We used a large dataset derived from a pool of studies which have been conducted within there along the last 30 years. Each study was based on monthly samplings and conducted in several estuarine habitat; thus, the pool covers practically all estuarine habitats and takes into account the seasonal cycle in the system. The PEC ichthyofauna represents a mixture between that fauna typical from the tropical Brazilian coast and that with affinities of temperate Argentinean and Uruguayan zones. The PEC harbors a rich fish fauna of 213 species, inserted in the families that are common along the Brazilian coast. Only a minor part (8%) of the PEC fish fauna was evaluated as regards the conservation status, mostly because of the lack of basic biological and ecological information for most species. Despite part of the among-estuaries differences are due to different and incomplete sampling efforts, the richness in the PEC is surprisingly higher than other systems in Brazil and around world, which emphasize the importance of the region for global biodiversity conservation.

Habitat residency and movement patterns of Centropomus parallelus juveniles in a subtropical estuarine complex

Sixty Centropomus parallelus juveniles were collected in March 2013 in two locations (Tromomó and Guaraguaçu) inside the Paranaguá estuarine complex, southern Brazil. The habitat residency and movement patterns of the individuals were inferred from Sr:Ca ratios and age recorded in the otoliths. Data suggest that the species spawns preferentially in brackish areas mainly from October to January, and that growth rate during the early juvenile stage could be influenced by environmental salinity. Furthermore, the data also show that C. parallelus can occupy diverse salinity habitats and migrate among marine, brackish and freshwater areas within the Paranaguá estuarine complex, showing a high environmental plasticity and adaptation.

Checklist of rocky reef fishes from the Currais Archipelago and Itacolomis Island, Paraná state, Brazil

The ichthyofauna of the rocky substrate of Currais Archipelago and Itacolomis Island (Parana state, Brazil) was surveyed between October 2008 and August 2009 through visual census, using 40 m2 (20x2 m) band transects at an average depth of 6 m. A total of 14,210 individuals (66 species from 33 families) were observed in 336 band transects, covering an area of 13,440 m2. Stegastes fuscus , Abudefduf saxatilis , Haemulon aurolineatum and Malacoctenus delalandii were the most abundant species. “Carnivore” was the most species-rich category, and “Mobile Invertebrate Feeder” the most abundant. Nine species are added to the list of reef fishes of the Parana state: Acanthurus coeruleus , Dactylopterus volitans , Epinephelus morio , Myrichthys breviceps , Ophioblennius trinitatis , Paraclinus spectator , Scorpaena brasiliensis , and Selene vomer .

Habitat use and abundance of goliath grouper Epinephelus itajara in Brazil: a participative survey

O desenvolvimento de estrategias de pesquisa para especies ameacadas e frequentemente limitado pelo acesso a individuos suficientes para adquirir informacoes necessarias para elaborar medidas de conservacao adequadas. Dentre essas especies, o mero (Epinephelus itajara) e um peixe recifal de grande tamanho, classificado globalmente como criticamente ameacado. No Brasil, a pesca e proibida desde 2002. Investigou-se o uso de habitat e abundância de E. itajara no Brasil atraves de uma pesquisa participativa, que engajou mergulhadores voluntarios na coleta dos dados. Um total de 188 relatos foram registrados entre 2005 a 2011 em 13 estados brasileiros. Os resultados revelaram que o tipo de habitat influenciou a relacao entre o comprimento total e profundidade de ocorrencia de E. itajara. Observou-se uma diferenca significativa entre habitats: habitat artificial apresentou uma relacao nao linear e habitat natural uma relacao assintotica. Este estudo ressalta a importância do desenvolvimento de medidas de conservacao abordando habitats e locais especificos visando a recuperacao populacional. Estruturas artificiais (naufragios e recifes feitos pelo homem) sao habitats criticos que devem ser considerados como areas relevantes para as estrategias politicas conservacao de E. itajara. Sugere-se a criacao e implementacao de areas marinhas protegidas como uma estrategia fundamental para a conservacao de E. itajara, especialmente em habitats artificiais e locais de agregacao.

The occurrence of Azores Chromis, Chromis limbata in the south-western Atlantic

jonas rodrigues leite, a’ thila andrade bertoncini, leonardo bueno, felippe daros, johnatas alves and mauri’cio hostim-silva Universidade Federal do Parana, PPG-CB, Zoologia, CxP. 19020, Curitiba, Parana, Brazil, Universidade Federal de Sao Carlos, PPGERN, CxP. 676 Sao Carlos, SP 13.565-905, Brazil, Centro de Estudos do Mar, UFPR, PGSISCO, CxP. 50002 Pontal do Sul, Parana, Brazil, Projeto Meros do Brasil, Sao Francisco do Sul, Santa Catarina, Brazil, Universidade Federal do Espirito Santo, DCSBA, CEUNES, R. Humberto de Almeida Franklin, 257 Sao Mateus, ES 29.933-415, Brazil