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
Navegar
3 resultados
Resultados da Pesquisa
Item PERFIL DAS PESQUISAS CIENTÍFICAS ENVOLVENDO TARTARUGAS MARINHAS NO MAR DO NORTE BRASILEIRO(2020) MARTINI, Evandro Arruda de; TEIXEIRA, Fernanda Lopes; SOARES, Joice de Souza; BONACH, KellyNo litoral brasileiro se reproduzem cinco espécies de tartarugas marinhas. O reconhecimento sistemático das áreas de reprodução dessas espécies teve início no Brasil em 1980, com o TAMAR atuando nas principais áreas identificadas. Nos últimos anos, pesquisas e monitoramentos realizados por diversas instituições têm ampliado o conhecimento a respeito de outras praias reprodutivas. Porém, no Mar do Norte brasileiro, ainda há áreas insuficientemente conhecidas.Item Nonlethal capture of green sea turtles (Chelonia mydas) in fishing weirs as an opportunity for population studies and conservation(Marine Environmental Research, 2021) Lima, Eduardo H.S.M. et al.Green sea turtles (Chelonia mydas) switch habitats during their development, moving from pelagic to neritic areas and then commuting between nesting and foraging grounds during adulthood. Due to their predominantly coastal habitats, they are under a range of anthropogenic threats. We monitored turtles incidentally captured in fishing weirs in Cear´ a state, northeastern Brazil, over a decade and provided an overview of capture rates in the fishery during previous decades. Between 2008 and 2018, 2335 captures were recorded, 76% were only once. Most recaptures (86%) occurred up to six months after the first capture, with a mean growth rate of 6.7 ± 3.6 cm year− 1 . Capture rates varied between years, with the highest rates during the historical period, peaking in 1962 (0.16 turtles day weir− 1 ). Between 2008 and 2018, the daily capture rate was 0.07 turtles day weir− 1 . Similar to other areas, the use of turtles as a fishery resource seems to have reduced population sizes in the Atlantic Ocean. On the other hand, the intensive monitoring of local weirs provided an opportunity to mobilize the community regarding their conservation, which in turn could have supported the recovery of turtles from a number of distant colonies. The relatively constant and year-round capture of green sea turtles reflects the presence of individuals from different rookeries and demonstrates the importance of the region as a developmental ground for juveniles from different nesting areas, with high growth rates compared with other feeding areas. Partnership with local fishermen and the long-term monitoring of passive nonlethal fishing weirs are key tools in supporting sea turtle conservation.- Boletim Centro Tamar:(Instituto Chico Mendes de Conservação da Biodiversidade, 2020-10) Centro Nacional de Pesquisa e Conservação de Tartarugas Marinhas e da Biodiversidade Marinha do Leste (TAMAR)