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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179 resultados
Resultados da Pesquisa
Item REABILITAÇÃO DE TARTARUGAS MARINHAS NAS BASES DO PROJETO TAMAR – ICMBio, NA COSTA BRASILEIRA(2008) WERNECK, M. R.; TADASHI, E.; PIRES, T. T.; MELO, M. T. D.; CASTILHO, J.; BAPTISTOTTE, C.O Projeto TAMAR-ICMBio, atua desde 1980, com o objetivo de proteger as espécies de tartarugas marinhas na costa brasileira. Bases de campo foram implantadas em áreas de desova e áreas de alimentação, onde são encontradas cinco das sete espécies existentes no mundo: Caretta caretta, Chelonia mydas, Eretmochelys imbricata, Lepidochelys olivacea e Dermochelys coriacea.Item Potential bycatch of seabirds and turtles in hook-and-line fisheries of the Itaipava Fleet, Brazil(ELSEVIER, 2007-05-28) BUGONI, L.; TATIANA, S. N.; Jr, N.O.L; CARVALHO, D.; SALES, G.; FURNESS, R. W.; STEIN, C. E.; PAPPES, F. V.; GRIFFONI, B. B.; MONTEIRO, D. S.The decline of populations of certain seabirds and sea turtles around the world is partly related to their incidental capture in large-scale fisheries. However, the impacts of small-scale fisheries on endangered seabirds and sea turtles, being carried out in many places around the world, have been largely neglected by scientists and governments. We monitored 178 fishing days and described a range of poorly known hook-and-line commercial fisheries carried out by the Itaipava fleet, southeastern Brazil, composed by 497 vessels and deploying hooks from 18◦S to 35◦S. Seven fisheries were defined: fast trolling for tuna and tuna-like species, slow trolling for Bigeye tuna, handlining, surface longline for Dolphinfish, pelagic longline for Swordfish, bottom dropline, and pole-and-line with live bait. We observed bycatch of 47 seabirds of six species and 45 turtles of four species. Capture rates were higher for the surface longline for Dolphinfish (0.15 birds/1000 hooks and 1.08 turtles/1000 hooks), slow trolling for Bigeye tuna (0.41 birds/day) and handlining targeting Yellowfin tuna (0.61 birds/day). Endangered Spectacled petrel (Procellaria conspicillata), Atlantic Yellow-nosed (Thalassarche chlororhynchos), and Black-browed (T. melanophris) albatrosses were the main seabirds caught. Immature Loggerhead turtles (Caretta caretta) and immature or adult Leatherback turtles (Dermochelys coriacea) were the main sea turtles affected by the surface longline for Dolphinfish. Monitoring the fleet and bycatch levels, development of mitigation measures, establishment of educational programs, government control over the fleet, and enforcement, are urgently required for the hook-and-line fisheries described in the present study. © 2007 Elsevier B.V. All rights reserved.Item RELATIONSHIP BETWEEN BODY MASS AND BODY LENGTH IN CAPYBARAS (HYDROCHOERUS HYDROCHAERIS)(Universidade de São Paulo, 2005-03-14) FERRAZ, K. M. P. M. B.; BONACH, K.; VERDADE, L. M.As a part of a management program we captured 39 capybaras (Hydrochoerus hydrochaeris) in an agroecosystem at the east central region of the State of São Paulo, Brazil from March 2001 to May 2002. Average adult male body mass was 54.1 ± 8.05 kg, and average adult female body mass was 62.0 ± 12.03 kg. Average juvenile male body mass was 23.0 ± 8.28 kg, and average juvenile female body mass was 26.7 ± 5.86 kg. Males and females presented a significant variation in the allometric relation between body mass and body length. Body mass and body length had a high correlation for both adult males and adult females. These results from capybaras in agroecosystem might be relevant for further management programsItem O SNUC é um instrumento eficaz para proteção das tartarugas marinhas no Brasil? Um ensaio sobre as tartarugas-de-pente, Eretmochelys imbricata, que nidificam no litoral do Rio Grande do Norte(2016) BELLINI, C.; SANTOS, E. A. P.; CAMARGO, F. S.; SANTOS, A. J. B.Item Ocean & Coastal Management(2010) SILVA, A. C. C. D. da; CASTILHOS, J. C. de.; SANTOS, E. A. P. dos.; BRONDIZIO, L. S.; BUGONI, L.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 Potential bycatch of seabirds and turtles in hook-and-line fisheries of the Itaipava Fleet, Brazil(ScienceDirect, 2007) BUGONI, L.; NEVES, T. S.; LEITE JÚNIOR, N. O.; CARVALHO, D.; SALES, G.; FURNESS, R. W.; STEIN, C. E.; PEPPES, F. V; GIFFONI, B. B.; MONTEIRO, D. S.The decline of populations of certain seabirds and sea turtles around the world is partly related to their incidental capture in large-scale fisheries. However, the impacts of small-scale fisheries on endangered seabirds and sea turtles, being carried out in many places around the world, have been largely neglected by scientists and governments. We monitored 178 fishing days and described a range of poorly known hook-and-line commercial fisheries carried out by the Itaipava fleet, southeastern Brazil, composed by 497 vessels and deploying hooks from 18◦S to 35◦S. Seven fisheries were defined: fast trolling for tuna and tuna-like species, slow trolling for Bigeye tuna, handlining, surface longline for Dolphinfish, pelagic longline for Swordfish, bottom dropline, and pole-and-line with live bait. We observed bycatch of 47 seabirds of six species and 45 turtles of four species. Capture rates were higher for the surface longline for Dolphinfish (0.15 birds/1000 hooks and 1.08 turtles/1000 hooks), slow trolling for Bigeye tuna (0.41 birds/day) and handlining targeting Yellowfin tuna (0.61 birds/day). Endangered Spectacled petrel (Procellaria conspicillata), Atlantic Yellow-nosed (Thalassarche chlororhynchos), and Black-browed (T. melanophris) albatrosses were the main seabirds caught. Immature Loggerhead turtles (Caretta caretta) and immature or adult Leatherback turtles (Dermochelys coriacea) were the main sea turtles affected by the surface longline for Dolphinfish. Monitoring the fleet and bycatch levels, development of mitigation measures, establishment of educational programs, government control over the fleet, and enforcement, are urgently required for the hook-and-line fisheries described in the present study. © 2007 Elsevier B.V. All rights reserved.Item CAPTURA INCIDENTAL DE TORTUGAS MARINAS POR LAS FLOTAS DE PALANGRE PELÁGICO DE BRASIL Y URUGUAY (1998 - 2010)(2014) GIFFONI, Bruno; LEITE JUNIOR, Nilamon; MILLER, Philip; PONS, Maite; SALES, Gilberto; DOMINGO, AndrésSea turtles are highly migratory species and during their long life cycle they face different threats. One of the biggest threats is the incidental captures by fisheries, thus longline fisheries has been pointed out as a great concern due to the high capture rates. This work summarizes the incidental capture of sea turtles by Brazilian and Uruguayan longline fleet, taking account different aspects to be considered in sea turtles productivity and susceptibility analyses - PSA. The data analyzed were collected by observers of the Programa Nacional de Observadores a Bordo de la Flota Atunera Uruguaya (PNOFA) from Uruguay, and the Programa Nacional de Observadores de Bordo da Frota Pesqueira do Brasil (PROBORDO), Fundação Pró-TAMAR, Instituto ALBATROZ and Núcleo de Educação e Monitoramento Ambiental (NEMA) from Brazil. A total of 25,164.089 hooks were sampled by Brazil and Uruguay between 2008 and 2010. On average, the sampled effort represented 1,5% of total effort applied at the same area by ICCAT CPCs. Loggerhead was the species most captured (n = 6.594), followed by Leatherback (n = 1.379) and Olive ridley (n = 600). All species nest in Brazil. Regarding productivity aspects, the Brazilian population of loggerhead, leatherback and Olive ridley are increasing. For the susceptibility analyses and considering availability, seven different RMUs are being impacted by longline. As regards encounterability, the three turtle species spent most of the time at the same depth range as Brazilian and Uruguayan longline toward to catch swordfish. For selectivity, juveniles of the loggerhead turtle are the most captured, while for Olive ridley and leatherback, sub-adult and adult have been most captured by longline fleet for both countries.Item BIOLOGIA REPRODUTIVA DO CAMARÃO SETE-BARBAS NO LITORAL CENTRO SUL E SUL DO ESPÍRITO SANTO, BRASIL(Bol. Inst. Pesca, 2013-02-01) MARTINS, Agnaldo Silva; PINHEIRO, Hudson Tercio; LEITE JÚNIOR, Nilamon de OliveiraO tamanho de primeira maturação, ciclo reprodutivo e razão sexual do camarão sete-barbas Xiphopenaeus kroyeri foram estudados a partir de amostras mensais em duas áreas litorâneas do Estado do Espírito Santo, entre 2003 e 2004, visando subsidiar futuras medidas de manejo. As coletas foram feitas com redes de arrasto de fundo em pequenos barcos de pesca artesanais, entre 4 e 8 m de profundidade. Foram capturados 6.006 exemplares sendo 2.766 fêmeas, 3.182 machos e 58 de sexo indeterminado. As fêmeas foram significativamente maiores do que os machos. O comprimento médio de primeira maturação gonadal das fêmeas foi de 9,026 cm. As fêmeas adultas foram mais numerosas do que os machos entre dezembro e fevereiro, coincidindo com o pico de desova, enquanto que os machos adultos predominaram no trimestre subsequente. Essa alternância de proporções foi associada a migrações batimétricas reprodutivas das fêmeas. O ciclo anual de maturação gonadal, a abundância sazonal, variação dos tamanhos médios e a presença sazonal de juvenis sugerem a existência de desova contínua e recrutamento de dezembro a fevereiro e em julho e agosto. As dificuldades de se estabelecer um período de defeso adequado no estado indicam que o manejo do recurso deva receber maior atenção devido aos aspectos envolvidos, sejam sociais, biológicos ou ambientais.Item TEMPORADA REPRODUTIVA DE CHELONIA MYDAS NO ATOL DAS ROCAS(1996) GROSSMAN, SANCHES, T. M. A.; BELLINI, C.As tartarugas marinhas possuem uma área de reprodução limitadas pelos trópicos, chamada “Cinturão Reprodutivo”. No Brasil a espécie Chelonia mydas desova nas praias arenosas das ilhas oceânicas. O Atol das Rocas está localizado a 144 milhas náuticas da costa do Rio Grande do Norte, sua formação segue a gênese dos recifes de coral localizados em mares tropicais