[PDF] Top 20 Neotrop. ichthyol. - vol.8 número2

... Bertaco & Malabarba, H. ocasoensis García-Alzate & Román- Valencia, and H. vinaceus Bertaco, Malabarba & Dergam. Hemigrammus tocantinsi differs from all species of that group by the number of branched ... See full document

... The reproductive strategies of surgeonfishes of the genus Acanthurus are well known for all Atlantic species except the Monrovia doctorfish, Acanthurus monroviae, an eastern Atlantic sur[r] ... See full document

... Mouth terminal. Posterior limit of maxilla almost reaching vertical through middle of orbit. Premaxillary teeth in two rows (Fig. 3). Outer row with four (1) or six (1), relatively compressed, tricuspid teeth. Inner row ... See full document

... reidi (582 males; 599 females; 225 juveniles) in the field revealed the existence of a novel sexual dimorphism in the longsnout seahorse (Fig. 1), expressed as an exclusive pattern consi[r] ... See full document

... of Loricariichthys platymetopon of both the sexes and same gonadal development stages (spent and resting) (a) and for both sexes and all stages sampled in the Rosana Reservoir (RR), Dia[r] ... See full document

... a 8 dentes tricuspidados na fileira interna do pré- maxilar, 5 a 9 dentes tricuspidados no maxilar, ausência de uma faixa escura lateral e de uma mancha umeral e, mancha caudal restrita à base dos raios medianos ... See full document

... The results of a marking and recapture program carried out along rio Paraopeba between 1997 and 2001 are described, using information from fish community studies conducted at ten samplin[r] ... See full document

... gigas was studied using conventional Giemsa staining, C-banding, Ag-NOR staining and 18S rDNA in situ hybrid- ization in order to produce more detailed information on the karyotype struc[r] ... See full document

... Three cases of color abnormalities and one of morphological aberration in flatfishes of the genus Achirus are described from the Piraquê-Açú River estuary, Espírito Santo, Brazil.. decli[r] ... See full document

... Two human observers (Observer 1 and Observer 2) made on-site observations of fish passing through the window while a Sony 3CCD video camera re- corded fish passage at the same time (Obse[r] ... See full document

... Feeding of juvenile pirarucu (Arapaima gigas, Arapaimidae) in their natural environment, lago Quatro Bocas, Araguaiana-MT, Brazil.. Valdézio de Oliveira*, Stephania Luz Poleto** and Paul[r] ... See full document

... We found yellowish juvenile coneys (Cephalopholis fulva) at Fernando de Noronha Archipelago, off Northeast Brazil, joining schools of similarly sized and coloured brown chromis (Chromis [r] ... See full document

... monym of Hyphessobrycon uruguayensis (Fowler, 1943) by the action of Weitzman & Palmer (1997) as discussed above, is not to be rejected due to the action of Malabarba & Weitzman [r] ... See full document

... nibbling on the jellyfish umbrella caused the rough scads to leave momentarily their shelter, one of them being immediately preyed on by the comb grouper (seen here charging beneath the [r] ... See full document

... the relatively low number of records on complex interactions in freshwaters, including cleaning and mimicry, is due to the still few observational studies under natural conditions in the[r] ... See full document

... A third factor that had also directly contributed to local fish fauna extinction in Lagoa Santa lake was the introduction of non-native species.. Although there is no official record of [r] ... See full document

... O jaú, Zungaro jahu (Ihering, 1898), é um bagre migrador de grande porte endêmico da bacia do rio da Prata, possui frágil status de conservação e sua ecologia é pouco conhecida. Nós rastreamos uma fêmea adulta de 1,5 m ... See full document

... Mirande (2010: 503) hypothesized eight character states as autapormorphic for Tetragonopterus argenteus. These character states were herein evaluated for T. akamai. 1) The laterosensory canal in the sixth infraorbital of ... See full document

... A recent expedition to the region of São Gabriel da Cachoeira in the blackwater upper rio Negro of northern Amazonian Brazil yielded a previously unknown species of Cyphocharax with [r] ... See full document

... Uma nova espécie de Poptella é descrita do Rio Juma, tributário do baixo Rio Aripuanã, bacia do rio Madeira, Amazonas, Brasil. A nova espécie é distinguida de todas suas congêneres, exceto P. brevispina, por apresentar ... See full document