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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94 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 programs- X Congresso e XV Encontro da Associação Brasileira de Veterinários de Animais Selvagens - ABRAVAS(São Pedro ABRAVAS, 2006) ABRAVAS; RASO, T. de F.; MATUSHIMA, E. R.; CASAGRANDE, R. A.Anais do X Congresso e XV Encontro da Associação Brasileira de Veterinários de Animais Selvagens
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 II JORNADA DE CONSERVAÇÃO E PESQUISA DE TARTARUGAS MARINHAS(2005-11-14) CASTELL Darré Elisa, Elisa; MENDILAHARSU - Lópes Milagros, Lópes; IZQUIERDO, Graciela; MONTEIRO SILVEIRA, Danielle; SALES, Gilberto; ESTIMA CURI, Sérgio; BUGONI, Leandro; MONTEIRO FOGAÇA, Alice; JUNQUEIRA PIMENTEL, SamaraItem Growth and mortalities of the Pink-shrimp(2006-05) N . O ., Leite JR LEITE; JR . , PetrereFrom July, 1999 until July, 2001 data from the pink-shrimp Farfantepenaeus brasiliensis Latreille, 1970 and F. paulensis Pérez-Farfante, 1967 fishery were collected from trawling by the fishing fleet based in Santos/Guarujá-SP. Growth and mortalities of these species were studied. F. brasiliensis and F. paulensis have longevity of 2 years and growth estimates of L∞ = 29.0 cm and k = 1.24 year-1 for F. brasiliensis and L∞ = 27.5 cm and k = 1.34 year-1 for F. paulensis. Females reach bigger lengths than males in both species. Natural mortalities (M) were 1.80 and 1.90 year-1 and fishing mortalities (F) were 4.7 and 6.8 year-1 for F. brasiliensis and F. paulensis, respectively. Survival rates are S = 0.15% and 0.02% for F. brasiliensis and F. paulensis, respectively, which are usually low values for shrimps.Item Reproductive Biology and Concervation Status of the Loggerhead Sea Turtle (Caretta caretta) in Espírito Santo State, Brazil.(Cheloonian Research Foundation, 2003-12) Baptistotte, C.; Thomé, J. C. A.; Bjorndal, K. A.The reproductive biology of loggerheads nesting in Espírito Santo, Brazil, is evaluated for six nesting seasons (1991/1992 through 1996/1997), through data gathered by Projeto TAMAR-IBAMA, the Brazilian sea turtle conservation program. Mean curved carapace length of nesting females was 102.7 cm (n=198). Mean clutch size for clutches with more than 50 eggs was 119.7 (n=3664), and clutch size was significantly correlated with female body size. Management practices had significant effects on hatching success and incubation time. Mean hatching success of nests left in situ was 68.3% (n=879), of undepredated nests left in situ was 79.9% (n=751), and of nests moved to hatcheries and not depredated was 67.7% (n=2786). For nests moved to hatcheries, hatching success declined significantly with increasing time interval between oviposition and transfer to the hatchery. Mean incubation time was 59.5 days for nests left in situ (n=572) and 57.2 days for nests moved to hatcheries (n=2179). Incubation time declined significantly throughout the nesting season as temperatures increased; we conclude that sex ratio of hatchlings also shifts to more females as the season progresses. There was significant annual variation for all parameters. A short review of the conservation status of loggerheads in Espírito Santo State is also presented.Item Stock assessment and fishery management of the pink shrimp Farfantepenaeus brasiliensis Latreille(2006-02-28) LEITE , Junior JR . , N . O; M , Petrere . JR PETRERE; N.O, Junior JR LEITE; M , Petrere . JRQuantitative analyses of the pink shrimp (Farfantepenaeus brasiliensis and Farfantepenaeus paulensis) fisheries were carried out using data collected from July 1999 to July 2001 from the trawling operations of the fishing fleet based in Santos/Guarujá, SP. According to classical models, the fishery is at its maximum sustainable yield. Therefore, reduction of the fishing effort and adequate season and area closures seem to be the best management actions for the pink shrimp fishery.Item Manejo de ninhos da tartaruga-da-Amazônia(2003-01) BONACH, K.; VERDADE, L. M.O repiquente é a elevação rápida do nível da água dos rios, provocando a inundação das praias.