Results 11 to 20 of about 19,200 (226)

Dimorfismo sexual em Siluriformes e Gymnotiformes (Ostariophysi) da Amazônia Sexual dimorfism in Amazonian Siluriformes and Gymnotiformes (Ostariophysi)

open access: yesActa Amazonica, 2005
No presente trabalho é feito um levantamento dos casos de dimorfismo sexual em Siluriformes e Gymnotiformes. Este levantamento se restringe às formas Neotropicais, com ênfase mais especificamente, às da Amazônia.
Lúcia H. Rapp Py-Daniel   +1 more
doaj   +3 more sources

Utilizing Environmental DNA Metabarcoding to Assess Fish‐Based Food Resources in Key Foraging Areas of the Black Stork [PDF]

open access: yesEcol Evol
This study employed environmental DNA (eDNA) to assess fish‐based food resources in key foraging areas of the Black Stork (Ciconia nigra)—Zhanghe Canyon and Qixi River National Wetland Parks in Henan, China. Results show that the main prey in these habitats are fish from the orders Siluriformes, Cypriniformes, and Perciformes, with no significant ...
Yang X   +5 more
europepmc   +2 more sources

The complete mitogenome of Pareuchiloglanis sichuanensis (Siluriformes: Sisoridae) [PDF]

open access: yesMitochondrial DNA Part B, 2021
Pareuchiloglanis sichuanensis is an endemic fish species in the upper reaches of the Yangtze River. In the present study, the complete mitochondrial genome of P. sichuanensis was analyzed. The mitochondrial genome, consisting of 16,774 base pairs (bp), included 13 protein-coding genes, 2 ribosomal RNAs, 22 transfer RNAs, and a non-coding control region.
Taiming Yan   +9 more
openaire   +3 more sources

Comparative analysis of the mitogenomes of two Corydoras (Siluriformes, Loricarioidei) with nine known Corydoras, and a phylogenetic analysis of Loricarioidei [PDF]

open access: yesZooKeys, 2022
Corydoras is a speciose catfish genus from South America with widely investigated phylogenetic and evolutionary relationships. The complete mitogenomes of C. aeneus and C. paleatus were sequenced, assembled, and annotated using next-generation sequencing.
Cheng-He Sun   +9 more
doaj   +3 more sources

New data on cistern catfish, Phreatobius cisternarum, from subterranean waters at the mouth of the Amazon River (Siluriformes, Incertae Sedis)

open access: yesPapéis Avulsos de Zoologia, 2005
Data on new specimens of the rare subterranean catfish Phreatobius cisternarum are reported. Specimens were collected from hand-dug wells in the region of the mouth of the Amazon river, Brazil.
Janice Muriel-Cunha, Mário de Pinna
doaj   +1 more source

Late Maeotian bony fish fauna in the North-Western Black Sea region (in Ukrainian)

open access: yesБіологічні студії, 2013
Results of studying fossil bony fish fauna from the three Late Maeotian localities in the North-Western Black Sea region – Orikhivka, Andriivka and Novoukrainka 1 – are presented.
O. M. Kovalchuk
doaj   +1 more source

Comparison between different protocols for DNA extraction for Hypostomus affinis [PDF]

open access: yesBrazilian Journal of Biology
The sand catfish or painted catfish (Hypostomus affinis) is a species native to Brazil and has some peculiar characteristics: a flattened body covered by bony plates and fins with spikes for fixing on rocks.
M. Rodrigues-Zeferino   +6 more
doaj   +1 more source

Phylogenetic analysis of microbial communities in different regions of the gastrointestinal tract in Panaque nigrolineatus, a wood-eating fish [PDF]

open access: yes, 2012
The Neotropical detritivorous catfish Panaque nigrolineatus imbibes large quantities of wood as part of its diet. Due to the interest in cellulose, hemi-cellulose and lignin degradation pathways, this organism provides an interesting model system for the
McDonald, R., Schreier, H., Watts, Joy
core   +3 more sources

Validation of a methodology for measuring nutrient digestibility and evaluation of commercial feeds for channel catfish Validação de um método para medir a digestibilidade de nutrientes e avaliação de rações comerciais para catfish

open access: yesScientia Agricola, 2010
Channel catfish, a major freshwater aquaculture species in the US, is also farmed in Southern Brazil. However, apparent digestibility coefficients (ADC) of nutrients in commercial feeds available in Brazil for the species are not known.
Renato Eiji Kitagima   +1 more
doaj   +1 more source

Three new species of Synodontella (Monogenea, Ancyrocephalidae), gill parasites of Synodontis spp. (Siluriformes, Mochokidae) from Côte d’Ivoire

open access: yesParasite, 2019
Four species of Synodontella, including three new, are reported from three species of Synodontis (S. ocellifer, S. nigrita, and S. velifer) from north-western Côte d’Ivoire.
Bouah Enoutchy F.   +2 more
doaj   +1 more source

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