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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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6 resultados
Resultados da Pesquisa
Item Olive ridley inter-nesting and post-nesting movements along the Brazilian coast and Atlantic Ocean(2019) SANTOS, E.A.P; SILVA, A.C.C.D; SFORZA, R.; OLIVEIRA, F.L.C; WEBER, M.I.; CASTILHOS, J.C; LÓPEZ-MENDILAHARSU, M.; MARCOVALDI, M.A.A.G.; RAMOS, R.M.A; DIMATTEO, AItem Olive ridley inter-nesting and post-nesting movements along the Brazilian coast and Atlantic Ocean. Endangered Species Research(2019-11-14) SANTOS, E.A.P.; SILVA, A.C.C.D.; SFORZA, R.; OLIVEIRA, F.L.C.; WEBER, M.I.; CASTILHOS, J.C.; LÓPEZ-MENDILAHARSU, M.; MARCOVALDI, M.A.A.G.; RAMOS, R.M.A.; DIMATTEO, A.The states of Sergipe and Bahia comprise the main nesting beaches for olive ridley sea turtles Lepidochelys olivacea in Brazil. Between February 2014 and March 2015, 40 L. olivacea were equipped with Argos platform transmitter terminal tags. A state-space model was applied to Argos location data to investigate the animals’ spatial ecology and identify areas of restricted movements (ARMs) and directional movements. The inter-nesting ARMs included the continental shelf from the south of Alagoas state to the north of Bahia, totaling 7244 km2 (kernel density estimation, 90% isopleth) and generally extended up to 22 km from the coast or to the 50 m isobath. The post-nesting directional movements were classified as either (1) neritic north/ northeastern (N/NE) Brazil to French Guiana (n = 4 turtles), (2) neritic south/southeastern (S/SE) Brazil (n = 16), or (3) oceanic (n = 19) from Brazil to West Africa. ARMs consistent with foraging areas were identified for 24 olive ridleys: 15 along the continental shelf of SE Brazil, 2 adjacent to Ceará and Maranhão states (between the 25 and 75 m isobaths), and 7 off the African countries of Cape Verde, Senegal, Gambia, Guinea-Bissau, and Sierra Leone. The results de monstrated the complexity of olive ridley movements from northern Brazil, raised questions about connectivity, and highlighted threats such as fisheries, ports, and hydrocarbon exploration fields overlapping with, or near to, high-use areas. These results can be used as a basis for spatial management measures to protect this endangered species.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.- 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
Item Satellite-tracked Movements of Female Dermochelys coriacea From Southeastern Brazil(Endangered Species Research, 2011-10-21) ALMEIDA, A. P; ECKERT, S. A; BRUNO, S. C; SCALFONI, J. T; Giffoni, B; LÓPEZ-MENDILAHARSU, M.; THOMÉ, J. C. AFour 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.