Results 181 to 190 of about 3,790 (211)

Vasotocinergic control of agonistic behavior told by Neotropical fishes

General and Comparative Endocrinology, 2019
The hypothalamic neuropeptides of the vasopressin-oxytocin family (and their homologs for non-mammalian species) are key modulators of the Social Brain Network, acting via specific receptors reported in all the nuclei of this network. Different conclusive examples have proven the context-dependency actions of hypothalamic nonapeptides on social ...
Silva, Ana C., Pandolfi, Matias
openaire   +3 more sources

Genetic Resources of Freshwater Neotropical Fishes

2017
South American rivers contain the most diverse, but also one of the more poorly known, freshwater fish faunas of the world. While significant progress is being made on understanding the systematics and taxonomy of Neotropical fish groups (Malabarba et al.
Alexandre W. S. Hilsdorf, Eric M. Hallerman   +1 more
openaire   +1 more source

Karyotypic evolution in Neotropical freshwater fish

2000
The largest freshwater fish fauna of the world is found in the Neotropical region and includes 2500 to 2700 known species [1], and a total number of species that may actually reach 5000 [2]. Until the late seventies not much was known about the cytogenetic characteristics of these fish and the cytogenetic data available about the Neotropical fish fauna
Lurdes F. de Almeida-Toledo, Fausto Foresti, Silvio de A. Toledo-Filho   +2 more
openaire   +1 more source

Regulation and stability in fish assemblages of neotropical floodplain lakes

Oecologia, 1994
Neotropical floodplain lakes provide an excellent opportunity to examine the regulation and stability of fish assemblages. At low water, when lakes are separated, fish are concentrated in the lakes and are presumably subject to strong interspecific interactions that can shape assemblage structure. At high water, when the lakes and river channels become
Macro A, Rodríguez, William M, Lewis
openaire   +2 more sources

Morphologically differentiated sex chromosomes in neotropical freshwater fish

Genetica, 2001
A general survey of the occurrence of morphologically differentiated sex chromosomes in the neotropical freshwater fishes is presented. The total number of 32 occurrences involving simple XX-XY and ZZ-ZW, and multiple X1X2Y, XY1Y2 and ZW1W2 sex chromosome systems is described, with comments on the aspects of sex chromosome evolution in this fish fauna.
Toledo, L. F. de Almeida, Foresti, F.
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Gondwana and neotropical galaxioid fish biogeography

1984
The galaxioids, Southern Hemisphere salmoniforms (i.e. Galaxiidae, Aplochitonidae, Retropinnidae and Pro-totroctidae), are found in Australia, New Zealand, New Caledonia, South America and South Africa, and include 4 families, 11 genera, and about 45 species.
openaire   +1 more source

Genomic landscape of repetitive DNAs in Neotropical electric fishes

Molecular Genetics and Genomics
The Neotropical electric fishes of the order Gymnotiformes, known for their unique electrogenic and electrosensory systems, provide exceptional models for investigating ecological and evolutionary questions. While their phylogenetic and cytogenetic diversity is well documented, information about the diversity and evolution of repetitive DNA in ...
Camila do Nascimento Moreira, William Gareth Richard Crampton, Pedro Henrique de Andrade Affonso, Cesar Martins, Adauto Lima Cardoso   +4 more
openaire   +2 more sources

Cryopreserved Semen Motility of South American Neotropical Fish: A Meta-Analysis

Reviews in Fisheries Science and Aquaculture, 2022
Danilo Streit, Canozzi M E A, Barcellos J O J   +2 more
exaly  

Heavy metals affecting Neotropical freshwater fish: A review of the last 10 years of research

Aquatic Toxicology, 2021
Alessandro Paschoalini, Nilo Bazzoli
exaly  

Paraoxonase Activity in Sera of Four Neotropical Fish

Bulletin of Environmental Contamination and Toxicology, 2004
V L F Cunha, Bastos, M V, Alves, G, Bernardino, P S, Ceccarelli, J Cunha, Bastos   +4 more
openaire   +2 more sources