Navegando por Autor "BARATA, P. C. R"

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Artigo
An overview of Projeto TAMAR-IBAMA'S activities in relation to the incidental capture of sea turtles in the Brazilian fisheries.
(2002) THOMÉ, J. C. A; MARCOVALDI, M. A; MARCOVALDI DEI, G. G; BELLINI, C; GALLO, B. M. G; LIMA, E. H. S. M; SILVA DA, A. C. C. D; SALES, G.; BARATA, P. C. R
Projeto TAMAR-IBAMA, the Brazilian Sea Turtle Conservation Program, is a network of 20 conservation stations that together protect over 1,000 km of Brazilian coastline on the mainland and on three oceanic islands. TAMAR was created in 1980, and initially focused its efforts on nesting beaches. Since 1990, a significant proportion of TAMAR's field activities have been focused on sea turtle feeding areas. Five species of sea turtles are found and nest in Brazil: the green turtle (Chelonia mydas, CM), the loggerhead (Caretta caretta, CC), the hawksbill (Eretmochelys imbricata, El), the olive ridley (Lepidochelys olivacea, LO) and the leatherback (Dermochelys coriacea, DC). Several nesting beaches and feeding areas are located near important fishing and/or shrimping grounds, where sizeable industrial fishing fleets operate. Moreover, artisanal fishing is a key livelihood for many coastal communities. Therefore, there is significant interaction between sea turtles and fishing gear around those areas, and the successful conservation of sea turtles by TAMAR must also involve actions to reduce incidental captures of sea turtles in fishing activities. Furthermore, since 1998 TAMAR has been collecting data on the level of sea turtle capture by the pelagic longline fishery off the Brazilian coast, which is a new frontier for conservation activities. Different actions have been implemented by TAMAR in each region in Brazil, depending on local conditions and available funds. Here, we present an overview of TAMAR's activities regarding the incidental capture of sea turtles by Brazilian fisheries.
Artigo
Marcação e biometria de tartarugas marinhas Chelonia mydas juvenis no efluente da Companhia Siderúrgica de Tubarão, Vitória, Estado do Espírito Santo, Brasil, 2000-2001.
(2002) BAPTISTOTTE, C; AGRIZZI, E. J; MOREIRA, L. M. P; TOREZANI, E; COELHO, B. B; SCALFONI, J. T; BARATA, P. C. R
Texto publicado em revista
Nesting Biology and conservation of the leatherback sea turtle (Dermochelys coriacea) in Espírito Santo State, Brazil, 1988-1989 to 2003-2004.
(Chelonian Conservation and Biology, 2007-05-01) THOMÉ, J. C. A; BAPTISTOTTE, C; MOREIRA, L. M. P; SCALFONI, J. T; ALMEIDA, A. P; RIETH, D. B; BARATA, P. C. R
In Brazil, the only area where regular leatherback sea turtle (Dermochelys coriacea) nesting is known to occur is located on the northern coast of the state of Espı´rito Santo, around latitude 198S. In this study, we present the field methods used by Projeto TAMAR-IBAMA (the Brazilian Sea Turtle Conservation Program) in the state of Espı´rito Santo and analyze data on leatherback nesting from 1988–1989 to 2003–2004. In that period, 527 nests were observed in the study area. The annual number of nests varied between 6 (in 1993–1994) and 92 (in 2002–2003). Between 1995–1996 and 2003–2004, the annual number of nests increased at about 20.4% per year on average. Among the 527 clutches observed, 358 (67.9%) were left in situ, 50 (9.5%) were relocated to another spot on the beach, 88 (16.7%) were relocated to open-air beach hatcheries, and 31 clutches (5.9%) did not have their management decision recorded. Curved carapace length of nesting females was in the range of 139–182 cm (mean ¼ 159.8 cm). At present, there is no significant alteration of the nesting habitat in Espı´rito Santo, egg poaching has been reduced to very low levels, and there is no subsistence hunting for sea turtles of any species. The main challenges to leatherback conservation currently are the incidental capture in artisanal fisheries operating close to nesting beaches and in high seas fisheries operating in the South Atlantic, as well as activities related to the oil industry. An overview of Projeto TAMAR’s actions addressing current sea turtle conservation issues in the State of Espı´rito Santo is presented.