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URI permanente desta comunidadehttps://bdc.icmbio.gov.br/handle/cecav/1402
Centro Nacional de Pesquisa e Conservação de Tartarugas Marinhas e da Biodiversidade Marinha do Leste
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Item Captive-raised Loggerhead Turtle (Caretta caretta) Found Nesting Eight Years After Release(2007) ALMEIDA, A. P.; BAPTISTOTTE, C.; SANTOS, A. S. A.; SERAFINI, T. Z.Item Captive-raised Loggerhead Turtle (Caretta caretta) Found Nesting Eight Years After Release(2007) ALMEIDA, A. P.; BAPTISTOTTE, C.; SANTOS, A. S.; SERAFINI, T. Z.The Brazilian coast between the states of Sergipe and Rio de Janeiro (Figure 1) is considered the most important breeding site of the loggerhead turtle, Caretta caretta in Latin America (Marcovaldi & Marcovaldi 1999), with over 5,000 nests laid annually (Marcovaldi & Chaloupka in review).Item Green Turtle Nesting on Trindade Island: Trend, Abundance and Biometrics(ENDANGERED SPECIES RESEARCH, 2011-08-31) ALMEIDA, A. P.; MOREIRA, L. M. P.; BRUNO, S. C.; THOMÉ, J .C. A.; MARTINS, A. S.; BOLTEN, A. B.; BJORDAL, K. A.ABSTRACT: Green turtles Chelonia mydas nesting at Trindade Island, 1140 km off the coast of Brazil, were monitored discontinuously from 1982/83 to 2008/09. For 7 years during this period, the majority of nesting was monitored, and the number of nests deposited on Trindade varied from 1333 to 5261. Based on these nest counts, Trindade is among the most important known Atlantic nesting sites for green turtles. The population remained stable between 1991 and 2008. Data on female body size, clutch size, internesting intervals, remigration intervals, and hatching success are also presented.Item NOT JUST ANOTHER MIXED STOCK ANALYSIS(2010) NARIO-MACIEL, E.; MARTIN, M.; BONDIOLI, A. C. V.; ALMEIDA, A. P.; TOREZANI, E.; BAPTISTOTTE, C.; MARCOVALDI, M. A.; AMATO, G.; DESALLE, R.In the Southwestern Atlantic Ocean, sea turtles are exposed to myriad threats including disease, fisheries bycatch, and industrial or coastal development, but protected by effective conservation organizations. In Espírito Santo, Brazil, green turtles (Chelonia mydas) with relatively high incidence of fibropapillomatosis tumors routinely strand in the vicinity of the state capital, Vitória, a highly urbanized area that encompasses the effluent discharge channel of a local steel plant. This is also a particularly interesting population because of its relative proximity to the regionally important Trindade Island rookery, whose feeding grounds have not been convincingly identified to date. To investigate the population distribution of the at-risk turtles, we sequenced a segment of the mitochondrial control region (862 bp; n = 132). Eight mtDNA haplotypes were revealed, of which the most common were CMA-08 and CMA-05. Haplotypes CMA-06 and CMA-09 were each found in six individuals, and rare haplotypes CMA-03, CMA-10, CMA-23, and CMA-32 were also detected. Two kinds of “many-to-many” mixed stock analyses were carried out, taking into account or alternately disregarding source nesting population size. The same approach was taken with traditional MSAs (“one-to-many”), and the main differences between the "one-to-many" and "many-to-many" results are reported. The analyses that included population size and all available data were most consistent with expectations. We recommend caution when employing different mixed stock analysis methods, and emphasize the importance of exploring alternate ways of investigating the origins of mixed stocks, including modeling approaches. These data will provide insight into population isolation and conservation priorities necessary to establish whether areas should be managed as independent units or as regional populations, and will clarify questions of scale in conservation and management, providing a scientific basis for conservation prioritization.Item Satellite-tracked movements of female Dermochelys coriacea from southeastern Brazil(2011-10-21) ALMEIDA, A. P.; ECKERT, S. A.; BRUNO, S. C.; SCALFONI, J. T.; Giffoni, B.; LÓPEZ-MENDILAHARSU, M.; THOMÉ, J. C. A.Four female leatherback sea turtles Dermochelys coriacea were satellite tracked from the southeastern coast of Brazil (3 from nesting beaches in the state of Espírito Santo, and 1 recovered from a driftnet off the coast of the state of São Paulo), representing the first study of movements of leatherbacks nesting on Brazilian grounds. The results suggest that during the internesting period, leatherbacks may disperse up to 160 km from the nesting beach using an area of 4400 km2. Tracking also revealed shared feeding areas in southern South America, comprising Brazilian, Uruguayan, and Argentinean waters, and highlighted important interactions with fish eries along nesting, migratory, and feeding habitats. The presence in migratory/foraging areas of turtles from at least 2 different nesting populations from both sides of the South Atlantic Ocean supports the concept that management efforts for this species must incorporate a broad regional perspective.Item Subsídios para a Conservação e Manejo de Tartarugas Marinhas no Brasil Obtidos pela Telemetria por Satélite(2011-08-16) MARCOVALDI, M.A.; ALMEIDA, A. P.; SILVA, A. C. C. D.; GIFFONI, B.; LIMA, E. H. M.; LOPEZ, G. G.; CASTILHOS, J.C.; THOMÉ, J. C.; LÓPEZ-MENDILAHARSU, M.; BRUNO, S. C.