Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados Zoologia (2) BABT (1) Autor Faria,Vicente Vieira (3) Gomes,Marcelo Paes (2) Novelli,Ronaldo (2) Zalmon,Ilana Rosental (2) Carvalho,Carlos Euardo Veiga de (1) Ferreira,Alexandre Gomes (1) Lessa,Rosangela Paula Teixeira (1) Silva,Francisco Marcante Santana da (1) Mais... Palavra-chave Artificial reef (1) Artificial reefs (1) Carcharhinus signatus (1) Coastal sharks (1) Community structure (1) Mercury (1) Northern coast of Rio de Janeiro (1) Osteichthyes (1) Rio de Janeiro State Northern Coast (1) Shark (1) Southwestern Atlantic Ocean (1) Temporal variation (1) Mais... Tipo do documento Info:eu-repo/semantics/article (3) Ano 2004 (1) 2001 (2) País Brazil (3) Idioma Português (2) Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Potencial atrator de peixes ósseos em recife artificial no litoral norte do estado do Rio de Janeiro, Brasil Zoologia Gomes,Marcelo Paes; Novelli,Ronaldo; Faria,Vicente Vieira; Zalmon,Ilana Rosental. Artificial reefs have become an important and popular resource enhancement technique by concentrating fishes and by increasing natural production of biological resources. In order to increase the necto-benthic colonization potencial, an artificial reef was installed on the northern coast of Rio de Janeiro (21º27'S, 41ºOO'W), an area with typically low relief bottom. Measuring nearly 1500 m², the reef consisted of four sets of different materials randomly disposed: concrete pipes (N = 12); tires structures (N = 20); and cement tanks (N = 7) and pre-made blocks (N = 4). ln order to determine the artificial reef effects on the teleost community, trammel nets were used for monthly sampling the reef site (RA) and on a control area (AC) with sandy bottom. During... Tipo: Info:eu-repo/semantics/article Palavras-chave: Artificial reef; Osteichthyes; Community structure; Temporal variation; Northern coast of Rio de Janeiro. Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752001000300014 Potencial atrator de tubarões costeiros em recife artificial no litoral norte do estado do Rio de Janeiro, Brasil Zoologia Faria,Vicente Vieira; Novelli,Ronaldo; Gomes,Marcelo Paes; Zalmon,Ilana Rosental. Artificial reefs have been used in many countries to increase coastal fishery productivity. In order to increase fish attraction to the Northern Coast of Rio de Janeiro State, it was installed an artificial reef (1,500 m²) 5 nautical miles off Manguinhos's Bay (São Francisco de ltabapoana, Rio de Janeiro). The artificial structures were made of tires, concrete and cement blocks. A gill net of 125 x 3 m was monthly used in the artificial reef (AR) and in a control area (CA) to determine the effect of the experimental structures on the stock and diversity of coastal sharks. Considering the complexity of a sustainable elasmobranch exploitation, sharks were focused in this study. During 24 months of investigation (April/96 to March/98), a total of 325... Tipo: Info:eu-repo/semantics/article Palavras-chave: Artificial reefs; Coastal sharks; Rio de Janeiro State Northern Coast. Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752001000300017 Total mercury in the night shark, Carcharhinus signatus in the western equatorial Atlantic Ocean BABT Ferreira,Alexandre Gomes; Faria,Vicente Vieira; Carvalho,Carlos Euardo Veiga de; Lessa,Rosangela Paula Teixeira; Silva,Francisco Marcante Santana da. Mercury is the only element capable to biomagnificate along the food chain, and carnivorous fish tend to accumulate high concentrations of this element. Total mercury in muscle tissue of Carcharhinus signatus sampled along the western equatorial Atlantic Ocean was measured by atomic emission spectrophotometry with ICP/AES. The average total mercury concentrations were consistently greater than the maximum limit for human consumption established by the Brazilian Health Ministry for carnivorous fishes (1000 µg. kg-1 w.w.). Therefore, an average consumption of 0.1 kg/day of C. signatus would result in an average daily ingestion of 174.2 µg of Hg, more than five times the 30 µg/day intake established by the World Health Organization. In the range of lengths... Tipo: Info:eu-repo/semantics/article Palavras-chave: Mercury; Shark; Carcharhinus signatus; Southwestern Atlantic Ocean. Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132004000400016 Registros recuperados: 3 Primeira ... 1 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco