[PDF] Top 20 Neotrop. ichthyol. - vol.18 número3

... varii in the wild, based on analysis of stomach contents and intestine size, and its feeding dynamics based on stomach weight variation (stomach repletion index – RI), in addition to d[r] ... See full document

... Eigenmann (1908) mentioned that the color pattern of Moenkhausia melogramma consisted in the presence of a line along the anal-fin base, a faint longitudinal midlateral dark stripe, an[r] ... See full document

... We used a multifaceted approach by considering the taxonomic and functional aspects of fish assemblages and addressed the following predictions: (1) Species and functional composition [r] ... See full document

... The coastal basins in Northeastern Brazil used in this study make up two different ecoregions for freshwater fishes (Amazonas estuary and coastal drainages, and Parnaiba) and two areas[r] ... See full document

... This study aimed to determine the semen characteristics of Astyanax lacustris after hormonal induction and to evaluate the sensitivity of the species sperm to cryoprotective solutions [r] ... See full document

... Breeding strategies must be adopted to avoid loss of genetic diversity in captive populations of threatened species, such as genetically characterizing the broodstocks (Carvalho et al.[r] ... See full document

... FIGURE 3 | Monthly mean daily abundance (number of individuals divided by days of sampling) and size (mean total length ± standard deviation) of neonates (< 90 cm TL) Blacktip Shark[r] ... See full document

... Habitat use, trophic, and occurrence patterns of Inpaichthys kerri and Hyphessobrycon vilmae (Pisces: Characidae) in Amazonian streams.. Jaquelini O.[r] ... See full document

... devil: courtship behaviour, mating evidences and population structure of the Mobula tarapacana (Myliobatiformes: Mobulidae) in a remote archipelago in the Equatorial Mid- Atlantic Ocean[r] ... See full document

... Given the knowledge gap that exists on the deep-sea fish fauna of the northern coast of Brazil, we compiled all the available data on the region’s deep-sea fish, including the identifi[r] ... See full document

... Notable differences between Centromochlus heckelii and previous data about species of Tatia are: lower diploid number, presence of a sex chromosome system and multiple AgNORs in Centro[r] ... See full document

... This study aims to develop candidate microsatellite loci to accurately access genetic diversity and help in future studies of population genetics of electric eels.. Thus, this paper re[r] ... See full document

... fecundity, sub-samples of mature ovaries (n = 10 from each section) were collected. Samples from the middle region of the ovaries were fixed in a modified Gilson solution (100 mL of 60% ethanol, 880 mL of distilled ... See full document

... A = Hemigrammus brevis, endemic species of São Francisco Ecoregion (SFRE); B = Moenkhausia costae and C = Psellogrammus kennedyi, shared species between SFRE and Mid- Northeastern Caati[r] ... See full document

... Results from geometric morphometrics and molecular analyses were consistent with the results of the traditional morphological analysis, also indicating the delimitation of six taxa bel[r] ... See full document

... In this study, we compared chromosomal characteristics using conventional and molecular cytogenetic protocols in pirarucu populations from the Amazon and Tocantins-Araguaia [r] ... See full document

... heterura, the cytoplasmic movements, few cortical alveoli, absence of blastomeres, formation of perivitelline space and animal and vegetative poles in the eggs allowed us to infer that[r] ... See full document

... Dorsal fin II,5; originated slightly posterior to vertical through origin of pectoral fin; spinelet rigid, triangular in frontal view, covered by thin layer of skin; dorsal-fin spine s[r] ... See full document

... Pacus do gênero Myloplus representam um desafio taxonômico formidável, e particularmente o caso de M. asterias e M. rubripinnis, duas espécies amplamente distribuídas e comuns que abrigam uma considerável diversidade ... See full document

... Moreover, as the water temperature and type of ecosystem influence ecological speciation in the western Atlantic (Rocha et al., 2005; Pinheiro et al., 2018), we may expect some genetic[r] ... See full document