TAMAR
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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13 resultados
Resultados da Pesquisa
Item CHARACTERIZATION OF FIBROPAPILLOMA-ASSOCIATED TURTLE HERPESVIRUS IN GREEN TURTLES FROM BRAZIL(2010) RODENBUSCH, C. R.; BAPTISTOTTE, C.; MELO, M. T. D.; PIRES, T. T.; WERNECK, M. R.; TOREZANI, E.; CANAL, C. W.The fibropapillomatosis is an emerging disease with high prevalence in turtles and characterized by multiple papillomas, fibromas and fibropapillomas in the skin or viscera. This disease is called "green turtle fibropapillomatosis” (GTFP) because it was first recorded in green turtles. In the Brazil, the first record of GTFP was in 1986 in the state of Espírito Santo (ES), and during the period of 2000-2004, 14.96% of the 4471 green turtles examined had tumors. The etiologic agent of GTFP is still uncertain, but the patterns of disease spread during outbreaks among captive green turtles have shown a pattern of infectious etiology.Item Juvenile green turtles (Chelonia mydas) in the effluent discharge channel of a steel plant, Espírito Santo, Brazil, 2000–2006(2010) TOREZANI, E.; BAPTISTOTTE, C.; MENDES, S. L.; BARATA, P. C. R.; Marine Biological Association of the United KingdomThis study, carried out from August 2000 to July 2006, began out of the recognition of a special ecological situation, when an aggregation of juvenile green turtles (Chelonia mydas) was found inside the effluent discharge channel of a steel plant located near Vito´ria, the State of Espı´rito Santo capital, eastern Brazil. The green turtles were captured through either cast nets or a set net or by hand (one turtle was captured alive on one of the channel banks); after data collection, they were released back into the discharge channel. Information is here reported on the temporal pattern of occurrence, size-classes, residency, presence of tumours and growth rates of tumoured and non-tumoured green turtles in the study area. A total of 640 individual green turtles were captured in the six years; 448 of them were captured just once, and 192 were captured two or more times. Curved carapace length ranged between 25.2 and 77.5 cm. Among the captured green turtles, 59.1% were classified as being in normal body condition and without any tumours, 6.6% were either underweight or emaciated but without any tumours, and 34.4% had tumours, with different levels of the tumour severity score.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 Relationship between fibropapillomatosis and environmental quality(2010-02-24) SANTOS, R. G.; MARTINS, A. S.; TOREZANI, E.; BAPTISTOTTE, C.; FARIAS, J. N.; HORTA, P. A.; WORK, T. M.; BALAZS, G. H.We documented the presence of fibropapillomatosis (FP), a debilitating tumor-forming disease, in marine turtles in Espírito Santo Bay (Brazil) from March 2007 to April 2008, and assessed the value of a specific environmental index for predicting the prevalence of FP. Turtles were captured monthly with entanglement nets and scored for presence and severity of FP. For the assessment of habitat quality, we used the ecological evaluation index (EEI) based on benthic macrophytes. The FPfree control area was classified as good quality (EEI = 8) and the study area, with high FP prevalence, was classified as bad quality (EEI = 2). Prevalence of FP in the study area was 58.3% with an average of 40 tumors per individual, and prevalence varied positively with curved carapace length (CCL). No FP was seen in the control area. The number of turtles heavily afflicted (tumor score category 3) was 10 times larger than those lightly affected (tumor score category 1). Most tumors were found on or near the front and rear flippers; no oral tumors or internal tumors were found. At recapture, 41% of formerly tumor-free turtles revealed FP, often increasing in severity with time, and very few turtles showed signs of disease regression. From the results of this study we concluded that FP is particularly severe in Espírito Santo Bay. Future studies should focus on evaluating how widespread FP is in Brazil, whether prevalence is increasing or decreasing, and elucidating the pathology and pathogenesis of FP in sea turtles in Brazil.Item Characterization of Fibropapilloma Associated Turtle Herpesvirus in Green Turtle From Brazil.(2010) RODENBUSCH, C. R; BAPTISTOTTE, C.; MELO, M. T. D; PIRES, T. T; WERNECK, M. R; TOREZANI, E; CANAL, C. W- SITAMAR:CONNECTING SEA TURTLES INFORMATION TO REACH BETTER CONSERVATION ACTIONS IN BRAZIL(2015-10-20) SANTOS, A. S.; MARCOVALDI, M.A.; LOPEZ, G.G.; WANDERLINDE, J.; TRENTIN, C.; GOLDBERG, D.W.; SILVA, B.M.G.; BECKER, J.H.; GIFFONI, B.; TORRES, D.; THOMÉ, J.C.A.; BAPTISTOTTE, C.; SFORZA, R.; RIETH, D. B.; TOGNIN, F.; LÓPEZ-MENDILAHARSU, M.; MAURUTTO, G.; LARA, P.H.; CASTILHOS, J.C. de; SILVA, C.C. da; MELO, M.T.D.; LIMA, E. H.S.M.; BARSANTE, A.; BELLINI, C.; SALES, G
- Variação Latidutinal na Distribuição do Tamanho de Tartarugas-verdes (Chelonia mydas) ao Longo de Parte da Costa Leste da América do Sul(2011-11-27) BARATA, P. C. R.; CARMAN, V. G.; SANTOS, A. S.; BONDIOLI, A. C. V.; ALMEIRA, A. P.; SANTOS, A. J.B. S.; SILVA, A. C. C. D.; GALLO, B. M. G.; GIFFONI, B. B.; DOMIT, C.; BAPTISTOTTE, C.; BELLINI, C.; BATISTA, C. M. P; BEZERRA, D. P.; MONTEIRO, D. S.; ALBAREDA, D.; LIMA, E. H. S. M.; LIMA, E. P.; GUEBERT-BARTOLO, F.; SALES, G.; LOPEZ, G. G.; STAHELIN, G. D.; BRUNO, I.; CASTILHO, J. C.; THOMÉ, J. C. A.; NUNES, J. A. A.; BECKER, J. H.; WANDERLINDE, J.; ROSA, L.; MARCOVALDI, M. A. G.; MELO, M. T. D.; MASCARENHAS, R.; ESTIMA, S. C.; NARO-MACIEL, E.As tartarugas-verdes (Chelonia mydas), após o nascimento nas praias de desova e um período de alguns anos na zona oceânica do mar, realizam, quando juvenis pequenas, uma mudança para a zona nerítica (Musick e Limpus 1997). A transição da zona oceânica para a zona nerítica e a distribuição geográfica de juvenis e adultos pelas áreas de alimentação costeiras ainda são insuficientemente conhecidas, assim como os fatores que as definem. O conhecimento destes aspectos da história natural das tartarugas-verdes, além de nos permitir um melhor entendimento da sua biologia populacional, tem implicações para a conservação da espécie, por possibilitar o estabelecimento de relações mais claras entre áreas geográficas, estágios ontogenéticos das tartarugas, fatores ambientais ou de outra ordem e ações de conservação. A tartaruga-verde atualmente está classificada como Ameaçada pela União Internacional para a Conservação da Natureza (IUCN). A tartaruga-verde tem ampla distribuição na costa leste da América do Sul (Pritchard 1976; Marcovaldi e Marcovaldi 1999; González Carman et al. 2011). Este trabalho tem como objetivo analisar a variação, em larga escala, da distribuição do tamanho (medido pelo comprimento curvo da carapaça, CCC) das tartarugas-verdes ao longo de parte da costa leste da América do Sul, com dados obtidos em áreas costeiras, com vistas a uma melhor compreensão da biogeografia da espécie na região.
Item What can we learn from sea turtle strandings?(2016) GOLDBERG, D.W.; PIRES, T.; VELLOSO, R.; BECKER, H.; CASTILHOS, J.C.; WANDERLINDE, J.; LOPEZ, G.G.; MELO, M.T.D.; SANTOS, A.B.; BAPTISTOTTE, C.Stranding datasets may provide important information on sea turtle health, age, size composition, diet, reproductive status, population trends and cause-specific mortality. Additionally, they are also used to infer geographic distribution and abundance or even trends in mortality risk, attributable to anthropogenic threats such as coastal fisheries and pollution. Five species of sea turtle were recorded in 5260 strandings from January 2014 to September 2015, along the Brazilian coast, of which 3903 were Chelonia mydas, 914 were Lepidochelys olivacea, 290 were Caretta caretta, 83 were Eretmochelys imbricata, 4 were Dermochelys coriacea and 66 could not be identified.- Geographical and temporal patterns of green turtle occurrence along the southwestern Atlantic coast(2016) BARATA, P.C.R.; CARMAN, V.G.; FALLABRINO, A.; SANTOS, A.S.; BONDIOLI, C.V.; ESTRADES, A.; SANTOS, A.J.B.; SILVA, A.C.C.D.; SILVA, B.M.G.; GIFFONI, B.B.; DOMIT, C.; BAPTISTOTTE, C.; BELLINI, C.; BATISTA, C.M.P.; BEZERRA, D.P.; MONTEIRO, D.S.; RIETH, D.; ALBAREDA, D.; LIMA, E.H.S.M.; LIMA, E.P.; GUEBERT, F.; VELEZ-RUBIO, G.M.; SALES, G.; LOPEZ, G.G.; STAHELIN, G.D.; BRUNO, I.; CASTILHOS, J.C.; THOME, J.C.A.; BECKER, J.H.; NARO-MACIEL, E.; MASCARENHAS, R.; WANDERLINDE, J.; MARCOVALDI, M.A.; BARROS, J.; ESTIMA, S.C.; MELO, M.T.D.; ROSA, L.
Item Projeto Tamar: matching, threats and conservation priorities for sea turtles in Brazil(2013) MARCOVALDI, M. A.; THOMÉ, J. C.; SILVA, A. C. C. D. da; SALES, G.; GIFFONI, B.; GOMES, B. M.; BAPTISTOTTE, C.; LIMA, E.; WANDERLINDE, J.; SANTOS, A. J. B.; SANTOS, A. S. dos; MENDILAHARSU, M. L.; LOPÉZ, G. G.