Ocorrência de dois citotipos em Serrasalmus spilopleura Kner, 1858 (characiformes, serrasalmidae) da região de confluência dos Rios Negro e Solimões, Amazonas, Brasil [PDF]
Acta Amazonica, 2000 Descreve-se pela primeira vez o cariótipo de exemplares de S. spilopleura da Amazônia Central. Todos os indivíduos analisados apresentaram número diplóide igual a 60 cromossomos, em conformidade com os dados da espécie obtidos em indivíduos da bacia do ...
Celeste Mutuko NAKAYAMA +2 more
doaj +10 more sources
Reproductive aspects of piranhas Serrasalmus spilopleura and Serrasalmus marginatus into the Upper Paraná River, Brazil [PDF]
Brazilian Journal of Biology, 2003 Construction of the Itaipu Dam, 150 km downstream from Sete Quedas Falls, resulted in the drowning of that natural geographic barrier, with consequent invasion of Serrasalmus marginatus in the upper stream. This event was followed by the reduction in the
Agostinho C. S.
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Reprodução da piranha-amarela Serrasalmus spilopleura Kner, 1858, em lagos de várzea, Amazonas, Brasil [PDF]
Biota Neotropica, 2011 Serrasalmus spilopleura (piranha) is a source of animal protein for marginal populations, it is occasionally sold in markets and fairs in the region. Considering the scarcity of information on reproduction of fish in floodplain lakes, the study proposes ...
Maciel, Hevea Monteiro +2 more
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Population dynamics of the yellow piranha Serrasalmus spilopleura Kner, 1858 (Characidae, Serrasalminae) in Amazonian floodplain lakes - doi: 10.4025/actascibiolsci.v35i3.15749 [PDF]
Acta Scientiarum: Biological Sciences, 2013 Fish is the main source of protein in the Amazon and fishing is one of the most important sources of income for the Amazonian population. Serrasalmus spilopleura is a species that have been increasingly consumed by riverside communities, although it is ...
Fabricio Barros de Sousa +2 more
doaj +8 more sources
Weight-Length Ratio of Piranhas <i>Serrasalmus</i> (Characiformes, Serrasalmidae) in Bolivia: Relationships to Molecular Divergence and Maximum Size? [PDF]
Ecol EvolThis study presents WLRs of nine piranha or palometa fish species of genus Serrasalmus present in the Amazon and La Plata basins of Bolivia and compares differences with genetic divergence (mtDNA COI locus) and the observed maximum size. All species showed an exponential (power type) growth pattern, and all WLRs were significantly different among all ...
Carvajal-Vallejos FM +3 more
europepmc +2 more sources
Acta Scientiarum: Biological Sciences, 2008 Foram estudados aspectos da alimentação de 158 exemplares de Serrasalmus spilopleura capturados no reservatório de Porto Colômbia, localizado no rio Grande, bacia do rio Paraná, no período entre novembro de 2001 e agosto de 2002.
André Corrêa Costa +3 more
doaj +6 more sources
Hydrological Connectivity Enhances Fish Biodiversity in Amazonian Mining Ponds: Insights From eDNA and Traditional Sampling. [PDF]
Mol EcolABSTRACT 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
Acta Scientiarum: Biological Sciences, 2008 A freqüência de ataque de piranhas aos peixes emalhados foi analisada a partir de capturas mensais utilizando redes de espera, expostas durante 24 horas, com despescas a cada 8 horas, no período de junho de 1987 a maio de 1988, em lagoas, canais e rios ...
Carlos Sérgio Agostinho +1 more
doaj +4 more sources
Aquatic macrophytes as feeding site for small fishes in the Rosana Reservoir, Paranapanema River, Southeastern Brazil [PDF]
Brazilian Journal of Biology, 2003 In the present investigation we studied the feeding habits of the fishes associated with aquatic macrophytes in the Rosana Reservoir, southeastern Brazil.
L. Casatti, H. F. Mendes, K. M. Ferreira
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Condition factor variations over time and trophic position among four species of Characidae from Amazonian floodplain lakes: effects of an anomalous drought [PDF]
Brazilian Journal of Biology, 2017 The effects of extreme droughts on freshwater fish remain unknown worldwide. In this paper, we estimated the condition factor, a measure of relative fitness based on the relationship of body weight to length, in four fish species representing two trophic
I. A. Tribuzy-Neto +4 more
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