Results 1 to 10 of about 509 (105)

Composição química e reprodução do mapará (Hypophthalmus edentatus Spix, 1829) do lago do Castanho, Amazonas. (Siluriformes, Hypophthalmidae) () [PDF]

open access: yesActa Amazonica, 1980
Resumo Discute-se a composição percentual de água, gordura, proteínas e sais minerais de Hypophthalmus edentatus, no filé e no peixe inteiro e também, sua reprodução. O alto teor de gordura encontrado nesta espécie foi considerado como sendo uma possível
F. Martinho Carvalho
exaly   +7 more sources

Fish fauna from Río Pilcomayo National Park and Ramsar Site and its surroundings, Formosa, Argentina [PDF]

open access: yesCheck List, 2014
The first list of fish species from the Río Pilcomayo National Park and Ramsar Site (RPNP), located in the Wet Chaco plains of northern Argentina is presented here.
Florencia Brancolini   +4 more
doaj   +11 more sources

Hydrological Connectivity Enhances Fish Biodiversity in Amazonian Mining Ponds: Insights From eDNA and Traditional Sampling. [PDF]

open access: yesMol Ecol
ABSTRACT Artisanal and small‐scale gold mining (ASGM) expansion in the Madre de Dios region of the Peruvian Amazon has transformed primary forests into a novel wetland complex of thousands of abandoned mining ponds. Despite their ecological relevance, post‐mining recovery of these systems remains understudied, particularly regarding fish biodiversity ...
Timana-Mendoza C   +7 more
europepmc   +2 more sources

Alimentação do mapará (Hypophthalmus edentatus Spix, 1829) do lago do Castanho, Amazonas (Siluriformes, Hypophthalmidae) () [PDF]

open access: yesActa Amazonica, 1980
Resumo Foram feitas análises do conteúdo estomacal e observações de estruturas do trato digestivo e dos rastros de Hypophihalmus edentatus, com o objetivo de determinar-se o regime alimentar e as possíveis adaptações morfológicas relacionadas a este ...
F. Martinho Carvalho
exaly   +3 more sources

Biología reproductiva de Hypophthalmus edentatus (Pimelodidae) y Brycon amazonicus (Bryconidae) en la cuenca del Putumayo, región Loreto, Perú [PDF]

open access: yesRevista Peruana de Investigación Agropecuaria
La pesca es una de las principales actividades económicas en el río Putumayo, a pesar de la poca información biológica generada de las especies explotadas.
Luis Olabo Sotelo-Lescano   +3 more
doaj   +3 more sources

Effect of biological variables and capture period on the proximate composition and fatty acid composition of the dorsal muscle tissue of Hypophthalmus edentatus (Spix, 1829)

open access: yesBrazilian Archives of Biology and Technology, 2003
This study analyzed the chemical composition of the dorsal muscle tissue of Hypophthalmus edentatus, in particular, fatty acids of the lipidic fraction, and its relationship with the biological variables and the capture period.
Edna Regina Netto de Oliveira   +2 more
exaly   +3 more sources

Fish larvae from the upper Paraná River: do abiotic factors affect larval density? [PDF]

open access: yesNeotropical Ichthyology
The purpose of this study was to evaluate the role of abiotic factors on fish larvae occurrence. Samplings were carried out monthly at 12 stations (grouped in four areas) in the Amambaí, Ivaí and Paraná rivers and in the Itaipu Reservoir (upper Paraná ...
Gilmar Baumgartner   +5 more
doaj   +2 more sources

Multispecies Fisheries in the Lower Amazon River and Its Relationship with the Regional and Global Climate Variability [PDF]

open access: yesPLoS One, 2016
This paper aims to describe the spatial-temporal variability in catch of the main fishery resources of the Amazon River and floodplain lakes of the Lower Amazon, as well as relating the Catch per Unit of Effort with anomalies of some of the Amazon River,
Díaz Pinaya, Walter Hugo   +5 more
core   +5 more sources

IMPACTOS DA HIDRELÉTRICA SAMUEL SOBRE AS COMUNIDADES DE PEIXES DO RIO JAMARI (RONDÔNIA, BRASIL) [PDF]

open access: yesActa Amazonica, 1995
A Usina Hidrelétrica de Samuel está localizada no rio Jamari, primeiro afluente da margem direita do rio Madeira, cerca de 56 km abaixo de Porto Velho-RO. A hidrelétrica teve sua construção iniciada em abril/1982 e entrou em operação a partir de abril/89.
Geraldo Mendes dos SANTOS
doaj   +1 more source

Efeito da estratégia de vida sobre as variações no conteúdo de energia de duas espécies de peixes (Brycon hilarii e Hypophthalmus edentatus), durante o ciclo reprodutivo - DOI: 10.4025/actascibiolsci.v29i2.521

open access: yesActa Scientiarum: Biological Sciences, 2007
Com o objetivo de investigar diferenças no conteúdo de energia durante o ciclo reprodutivo, foram selecionados 54 exemplares de Brycon hilarii (k-estrategista) e 82 de Hypophthalmus edentatus (r-estrategista) em amostragens realizadas mensalmente ...
Vanessa Monteiro   +2 more
doaj   +1 more source

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