Results 61 to 70 of about 7,231 (200)

Sensibility of Neotropical Fishes to Dichromate of Potassium

Ecotoxicology and Environmental Contamination, 2008
The objective of this study was to evaluate the sensitivity of potassium dichromate to Piaractus mesopotamicus (pacu), Hyphessobrycon eques (mato-grosso) e Phallocerus caudimaculatus (guaru). The LC(I)50;96h for the P. mesopotamicus was 144.50 ± 19.67 mg L-1; for the H. Eques, 130.79 ± 10.02 mg L-1; and for the P.
Claudinei da Cruz, P. Cubo, G. R. Gomes, F. P. Venturini, P. E. Guilherme, R. A. Pitelli   +5 more
openaire   +1 more source

Gonads and Gametes of South American Neotropical Species

Neotropical aquatic environments are undoubtedly a hotspot for fish species, as the Amazon region is recognized for sheltering the highest freshwater biodiversity in the world.
Rodrigues, Jeane, Nóbrega, Rafael Henrique [UNESP], Rodrigues, Maira da Silva [UNESP], Rosa-Silva, Maria Clara, Da Costa, Daniel Fernandes [UNESP], de Siqueira-Silva, Diógenes Henrique   +5 more
core   +1 more source

Diet shift of Red Belly Pacu Piaractus brachypomus (Cuvier, 1818) (Characiformes: Serrasalmidae), a Neotropical fish, in the Sepik-Ramu River Basin, Papua New Guinea

Neotropical Ichthyology
Introduction of fish species is a globally widespread practice that causes losses of native species and homogenization of diversity within and across continents. Diet assessments are important tools to depict the ecological function of species introduced
Sandra Bibiana Correa, Ricardo Betancur-R., Bernard de Mérona, Jonathan W. Armbruster   +3 more
doaj   +1 more source

Drivers of parasite sharing among Neotropical freshwater fishes [PDF]

Journal of Animal Ecology, 2014
SummaryBecause host–parasite interactions are so ubiquitous, it is of primary interest for ecologists to understand the factors that generate, maintain and constrain these associations. Phylogenetic comparative studies have found abundant evidence for host‐switching to relatively unrelated hosts, sometimes related to diversification events, in a ...
Mariana P. Braga, Emanuel Razzolini, Walter A. Boeger   +2 more
openaire   +2 more sources

Time-calibrated phylogeny of neotropical freshwater fishes

Frontiers in Bioinformatics
Neotropical Freshwater Fish (NFF) fauna exhibits the greatest phenotypic disparity and species richness among all continental aquatic vertebrate faunas, with more than 6,345 species distributed across the mostly tropical regions of Central and South America.
Victor A. Tagliacollo, Milton Tan, Roberto E. Reis, Ronielson Gaia, Virgilio Carrijo, Marcelo Ranuzi, Jack M. Craig, James S. Albert   +7 more
openaire   +3 more sources

Sperm Cryopreservation Protocols for Neotropical South American Species

Since South American Neotropical fish species began to be studied in the early 1980s, nine research groups developed studies involving these species. In total, 137 scientific articles have been published so far with species from six families.
Zhang, Tiantian, Povh, Jayme Aparecido, Sanches, Eduardo Antônio [UNESP], Vasconcelos, Ana Carina Nogueira, Rodrigues, Rômulo Batista, Streit, Danilo P., de Siqueira-Silva, Diógenes Henrique   +6 more
core   +1 more source

Effectiveness of a fish ladder for two Neotropical migratory species in the Paraná River

, 2018
We evaluated the effectiveness of the fish ladder at Porto Primavera Dam in the severely regulated Upper Paraná River, for two Neotropical migratory fish species. Overall, 564 fish (448 Megaleporinus obtusidens and 116 M.
Gutfreund, Carola, Castro-Santos, Theodore, Makrakis, Sergio, Dias, João Henrique Pinheiro, Makrakis, Maristela Cavicchioli, Celestino, Leandro Fernandes, Dias, João Henrique Pinheiro [UNESP]   +6 more
core   +1 more source

Development and characterization of fifteen polymorphic microsatellite loci in Bryconamericus aff. iheringii (Teleostei: Characidae) and cross-amplification in related Characidae species

Neotropical Ichthyology, 2018
Data on 15 novel microsatellite loci from the Neotropical fish Bryconamericus aff. iheringii are presented here. Analyses of 32 individuals from four different streams revealed 192 different alleles, ranging from four to 32 alleles per locus (mean of 12 ...
Caroline Apolinário-Silva, Dhiego G. Ferreira, Analiza F. Cavenagh, Nícollas G. O. Aprígio, Bruno A. Galindo, Jens Carlsson, Silvia H. Sofia   +6 more
doaj   +1 more source

Swimming performance of the migratory Neotropical fish Leporinus reinhardti (Characiformes: Anostomidae)

, 2007
Fig. 5. Curves representing the relationship between critical speed (m/s) and length (m) for the piau at different temperatures, compared to two salmonids (Salmo salar and Oncorhynchus nerka).Published as part of Santos, Hersília de Andrade e, Pompeu ...
Hersília de Andrade e Santos, Pompeu, P S, Carlos Barreira Martinez, Santos, Hers\uedlia, Paulo dos Santos Pompeu, Santos, H A, Martinez, C B, Martinez, Carlos Barreira, Pompeu, Paulo dos Santos, Santos, Hersília de Andrade e   +9 more
core   +1 more source

Upstream and downstream migration speed of Prochilodus costatus (Characiformes: Prochilodontidae) in upper São Francisco basin, Brazil

Neotropical Ichthyology
Details of migration dynamics of Neotropical fishes are poorly understood. This study aimed to examine upstream (spawning) and downstream (post-spawning) migration speeds, of curimatá-pioa (Prochilodus costatus) in the São Francisco River basin ...
João de Magalhães Lopes, Carlos Bernardo Mascarenhas Alves, Alexandre Peressin, Paulo Santos Pompeu   +3 more
doaj   +1 more source