Results 101 to 110 of about 8,683 (201)
The purpose of this paper is to determine the selection curve of gill-nets used to catch curimbatá, Prochilodus scrofa (Steindachner, 1881), according to Gulland (1969). The result is: c* (L)=e-0.025(L-l.67m)2 Where: c* (L)= relative frequency of
E.P. dos Santos, A. Mota, J.D. Rodrigues
doaj
Peixes nativos do Rio São Francisco adaptados para cultivo. [PDF]
A produção de peixes é uma atividade que vem crescendo no Brasil e tende a continuar assim, já que estudos divulgados recentemente apontam para o aumento do consumo de pescados, inclusive no nosso País, que é rico em recursos hídricos e em diversidade de
BALZANA, L. +5 more
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Oocyte surface in four teleost fish species postspawning and fertilization
Cytological and cytochemical studies were carried out to investigate the surface characteristics of oocytes of four teleost species from the São Francisco river.
Elizete Rizzo +3 more
doaj +1 more source
Contribution à la systématique des Prochilodus boliviens (Pisces, Characiformes, Prochilodidae) [PDF]
Quatre-vingt-huit spécimens du genre néotropical de poissons characiformes #Prochilodus$ Agassiz, récoltés en Bolivie, ont été étudiés. L'évaluation de caractères taxonomiques classiques ainsi que la structure des dents labiales et une analyse ...
Géry, J. +2 more
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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 +3 more
doaj +1 more source
Transferability of heterologous microsatellite primers in Brycon gouldingi
: Brycon gouldingi is a species of neotropical fish of socioeconomic and environmental importance in the Tocantins-Araguaia Basin. Genetic studies on this species are still limited, making it difficult to evaluate the population structure and genetic ...
Felipe Pinheiro de Souza +6 more
doaj +1 more source
Descrição das larvas das principais espécies de peixes utilizadas pela pesca, no Pantanal. [PDF]
Elaborou-se uma chave ilustrada, baseando-se na comparacao de caracteristicas morfologicas e morfometricas dos estadios iniciais, quando as larvas ainda sao encontradas no plancton, a deriva no rio.
LIMA, C. A. R. M. A., NASCIMENTO, F. L.
core +1 more source
Ninety-six-hour static bioassays were conducted in the laboratory to determine lethal concentrations (96-h LC50) of copper and cadmium for curimatã (Prochilodus vimboides) and piauçu (Leporinus macrocephalus). The 96-h LC50 of copper were 0.047 and 0.090
Levy Carvalho Gomes +4 more
doaj
Transmission Behavior of B Chromosomes in Prochilodus lineatus (Characiformes, Prochilodontidae).
The population of Prochilodus lineatus found in the Mogi-Guaçu River is karyotypically polymorphic, carrying acrocentric, metacentric, and submetacentric B chromosomes. The analysis of each B chromosome frequency in this species revealed a variation in the distribution pattern, with the metacentric type having the highest frequency (73.30%), followed ...
Penitente, Manolo +4 more
openaire +3 more sources
Ictiologos de la Argentina: Sara Beatriz Sverlij [PDF]
This series will include all those people who, by means of their contributions, great and small, played a part in the consolidation of ichthyology in Argentina.
López, Hugo Luis +2 more
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