Results 41 to 50 of about 2,707 (214)

Feeding ecology of Serrasalmus gouldingi (Characiformes: Serrasalmidae) in the lower Anapu River region, Eastern Amazon, Brazil [PDF]

open access: yesActa Amazonica, 2016
Studies on feeding ecology of fishes are important to understand the relationship between species and environmental seasonal variations. In tropical rivers, these relationships are mainly modeled by hydrological patterns.
Bruno da S. PRUDENTE   +3 more
doaj   +2 more sources

The piranha genome provides molecular insight associated to its unique feeding behavior [PDF]

open access: yes, 2019
The piranha enjoys notoriety due to its infamous predatory behavior but much is still not understood about its evolutionary origins and the underlying molecular mechanisms for its unusual feeding biology.
Adolfi, Mateus   +9 more
core   +2 more sources

The emergence of pathogens on fish in an impacted estuary and the role of non‐native piranhas in a potential bacterial infectious outbreak

open access: yesJournal of Fish Biology, EarlyView.
Abstract As many tropical aquatic ecosystems worldwide, the Doce River estuary (DRE, southeastern Brazil) has increasingly faced multiple anthropogenic threats, including deforestation, mining, species introduction and water management. The 2015 collapse of the Fundão iron ore tailings dam severely changed water properties and increased heavy metal ...
Ryan Andrades   +10 more
wiley   +1 more source

Diet of two serrasalmin species, Pygocentrus piraya and Serrasalmus brandtii (Teleostei: Characidae), along a stretch of the rio de Contas, Bahia, Brazil

open access: yesNeotropical Ichthyology
Serrasalmus brandtii and Pygocentrus piraya are two common piranha species in the Barragem da Pedra Reservoir, rio de Contas. In order to identify the diet composition of the two species, monthly collections were performed at three sites between May 2001
Márcia Emília de Jesus Trindade   +1 more
doaj   +1 more source

High trophic niche overlap between sympatric peacock basses (Cichliformes: Cichlidae: Cichla): Concordant findings from three dietary analysis methods

open access: yesJournal of Fish Biology, EarlyView.
Abstract Dietary analysis has contributed to our understanding of animal niches, interspecific interactions, community structure and the flow of matter and energy in food webs. We employed three methods of dietary analysis to estimate trophic niche overlap between two peacock bass species, Cichla cataractae and Cichla ocellaris, across sympatric ...
Benton L. Fry   +2 more
wiley   +1 more source

Copépodes parasitos de fossas nasais de cinco espécies de peixes (Characiformes) da planície de inundação do alto rio Paraná, Paraná, Brasil - DOI: 10.4025/actascibiolsci.v29i4.887

open access: yesActa Scientiarum: Biological Sciences, 2008
O presente trabalho teve como objetivo o estudo de copépodes parasitos de fossas nasais de peixes da planície de inundação do alto Rio Paraná. As coletas foram realizadas em diversos pontos da planície nos meses de março, junho e setembro de 2004.
Ana Carolina Figueiredo Lacerda   +3 more
doaj   +1 more source

Ergasilus yumaricussp. n. (COPEPODA: ERGASILIDAE) DAS BRÂNQUIAS DE Pygocentrus nattereri (KNER, 1860), Serrasalmus rhombeus (LINNAEUS, 1819) E Pristobrycon eigenmanni (NORMAN, 1929) (CHARACIFORMES : SERRASALMIDAE) DA AMAZÔNIA BRASILEIRA [PDF]

open access: yesActa Amazonica, 1995
Ergasilus yumaricussp. n. (Copepoda, Poecilostomatoida, Ergasilidae) é proposta. Os espécimens foram coletados dos filamentos branquiais de Pygocentrus nattereri, Serrasalmus rhombeuse Pristobrycon eigenmannido Rio Guaporé próximo à Pimenteiras, rios ...
José Celso O. MALTA, Angela Μ. VARELLA
doaj   +1 more source

Le genre Serrasalmus (Pisces, Serrasalmidae) dans le bas Tocantins (Brésil, Parà), avec la description d'une espèce nouvelle, S. geryi, du bassin Araguaia-Tocantins [PDF]

open access: yes, 1988
Les auteurs font une description complémentaire détaillée de 7 espèces du genre #Serrasalmus$ récoltées dans le cours inférieur du rio Tocantins, au cours de 3 années de collectes trimestrielles. Une espèce nouvelle, #S.
Dos Santos, G.M., Jégu, Michel
core  

Fish, Marmelos Conservation Area (BX044), Madeira River basin, states of Amazonas and Rondônia, Brazil. [PDF]

open access: yes, 2007
The present study provides a species list of fish from the Marmelos River Area – BX044 in the states ofAmazonas and Rondônia in northern Brazil. During a Rapid Ecological Assessment (REA) performed in October andNovember of 2003, 133 fish species from ...
Camargo, M., Giarrizzo, T.
core   +1 more source

Verhaltensstudien an Serrasalmus nattereri

open access: yesRevue suisse de zoologie., 1973
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +2 more sources

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