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	Provedor de dados Genet. Mol. Biol. (1) Neotropical Ichthyology (1) Autor Caramaschi,Érica P. (1) Leitão,Rafael P. (1) Maistro,Edson Luis (1) Silva,Alexandre Rodrigues da (1) Zuanon,Jansen (1) Palavra-chave Crenuchidae (2) C-banding (1) Characidium cf. zebra (1) Characidium gomesi (1) Following behavior (1) Foraging habits (1) Freshwater (1) Hypoptopomatinae (1) NOR-banding (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2007 (1) 2006 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Cytogenetic divergence between two sympatric species of Characidium (Teleostei, Characiformes, Crenuchidae) from the Machado River, Minas Gerais, Brazil Genet. Mol. Biol. Silva,Alexandre Rodrigues da; Maistro,Edson Luis. Cytogenetic studies were performed on two sympatric species of Characidium, C. gomesi and C. cf. zebra, from the Grande River basin, Minas Gerais State, Brazil. Although both species had a chromosome number of 50 with a karyotype exclusively consisting of meta- and submetacentric chromosomes, interspecific diversity was detected concerning the size of the two first chromosome pairs of the karyotypes. Active nucleolus organizer regions (NORs) were located at the terminal position on the long arm of the 17th pair of C. gomesi and at subterminal position on the long arm of the 23rd pair of C. cf. zebra. For both species the fluorochrome CMA3 stained only the NOR-bearing pair of chromosomes. The heterochromatin pattern also showed some differentiation between... Tipo: Info:eu-repo/semantics/article Palavras-chave: Characidium gomesi; Characidium cf. zebra; Crenuchidae; NOR-banding; C-banding. Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572006000300010 Following food clouds: feeding association between a minute loricariid and a characidiin species in an Atlantic Forest stream, Southeastern Brazil Neotropical Ichthyology Leitão,Rafael P.; Caramaschi,Érica P.; Zuanon,Jansen. Following behavior is a widespread feeding tactic among marine fishes, but remains poorly documented for freshwater fishes. The present study describes such association between two freshwater species: the minute armored catfish Parotocinclus maculicauda and the South American darter Characidium sp. During underwater observations in an Atlantic Forest stream, we recorded Characidium sp. closely following P. maculicauda (<5cm), catching the particles dislodged by this catfish's grazing activity. The following behavior displayed by the darter is considered opportunistic and possibly favors the capture of preys associated to the periphyton. This study is one of the few records of nuclear-follower feeding association between freshwater fishes and the first... Tipo: Info:eu-repo/semantics/article Palavras-chave: Following behavior; Foraging habits; Freshwater; Hypoptopomatinae; Crenuchidae. Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252007000300011 Registros recuperados: 2 Primeira ... 1 ... Última

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