Results: 13

Crescimento alométrico positivo entre características biométricas de juvenis de robalo-flecha (Centropomus undecimalis BLOCH, 1972) cultivados

As análises da relação entre características biométricas em juvenis de robalo-flecha (Centropomus undecimalis) cultivados proporcionam dados importantes para avaliação da biologia e do crescimento, entretanto, mais estudos são necessários nessa área. Dessa forma, esse trabalho teve como objetiv...

Growth differentiation factor 9 and bone morphogenetic protein 15 expression in previtellogenic oocytes and during early embryonic development of Yellow-tail Kingfish Seriola lalandi

Biol. Res; 47 (), 2014
BACKGROUND: During fish oocyte maturation, specific molecules are expressed and accumulated within oocyte until fertilization and embryo development. Special attention have been paid in members of the transforming growth factor (TGF-β) superfamily; growth differentiation factor 9 (GDF9/gdf9) and bone mo...

A new species of Gymnogeophagus from the río Negro and río Tacuarí basins, Uruguay (Teleostei: Perciformes)

Neotrop. ichthyol; 7 (1), 2009
The new cichlid species Gymnogeophagus tiraparae is described from the río Negro and río Tacuarí basins (Uruguay). The new species is distinguished from other Gymnogeophagus species by the unique presence of the following characters: adipose hump on head deeper than the dorsal-fin upper border, adipos...