Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados Neotropical Ichthyology (2) Autor Amadio,Sidineia (1) Benone,Naraiana Loureiro (1) Campos,Caroline Pereira (1) Freitas,Carlos Edwar de Carvalho (1) Lobato,Cleonice Maria Cardoso (1) Montag,Luciano Fogaça de Assis (1) Soares,Bruno Eleres (1) Mais... Palavra-chave Hydrological period (2) Age (1) Feeding (1) Floodplain (1) Peacock bass (1) Population parameters (1) Riparian vegetation (1) Scales (1) Stream order (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2020 (1) 2015 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Spatial and temporal variation of the diet of the flag tetra Hyphessobrycon heterorhabdus (Characiformes: Characidae) in streams of the Eastern Amazon Neotropical Ichthyology Benone,Naraiana Loureiro; Lobato,Cleonice Maria Cardoso; Soares,Bruno Eleres; Montag,Luciano Fogaça de Assis. ABSTRACT Spatial and temporal variations in streams promote large fluctuations of resource availability, thus affecting the diet of fishes. We evaluated the effects of hydrological periods and stream order within periods on the diet of the flag tetra Hyphessobrycon heterorhabdus. We analyzed 160 stomachs in eight streams ranging from 1st to 3rd order between dry and flood period. Sampled streams belonged to a well-preserved area in the Eastern Amazon. The flag tetra is omnivorous, with a tendency towards insectivory. During the dry period, the species exhibited a higher amount of autochthonous than allochthonous items. Fish consumed more allochthonous items in 1st and 2nd order streams in the dry period and in 1st and 3rd order streams in the flood period.... Tipo: Info:eu-repo/semantics/article Palavras-chave: Feeding; Floodplain; Hydrological period; Riparian vegetation; Stream order. Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252020000400206 Growth of the Cichla temensis Humboldt, 1821 (Perciformes: Cichlidae) from the middle rio Negro, Amazonas, Brazil Neotropical Ichthyology Campos,Caroline Pereira; Freitas,Carlos Edwar de Carvalho; Amadio,Sidineia. This study aimed to estimate age and growth of the peacock bass Cichla temensis from the rio Negro (Brazilian Amazonia) by analyzing scale annuli. Specimens were captured between October 2011 and September 2012 in the main channel of the river and in adjacent lakes in the municipality of Barcelos, AM, Brazil. Six growth checks were identified on the scales of specimens. The annual variation in body condition observed suggests that fat is accumulated during the dry season. Results for the GSI (gonadosomatic index) showed that peak reproduction occurred in the receding-water period, indicating that the fish had energy deficiencies as a result of reproductive activity. RMI (relative marginal increment) analysis revealed that an annulus is formed once a year... Tipo: Info:eu-repo/semantics/article Palavras-chave: Age; Hydrological period; Peacock bass; Population parameters; Scales. Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252015000200413 Registros recuperados: 2 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