Results 31 to 40 of about 326 (98)

New species of Moenkhausia Eigenmann, 1903 (Characiformes: Characidae) with comments on the Moenkhausia oligolepis species complex

Neotropical Ichthyology
A new species of Moenkhausia is described from tributaries of the rio Paraguay, Brazil. The new species is diagnosed from congeners by characters related to body coloration, the number of lateral line scales, the degree of poring of the lateral line, and
Ricardo C. Benine, Tatiane C. Mariguela, Claudio Oliveira   +2 more
doaj   +1 more source

Fish, Lajeado Reservoir, rio Tocantins drainage, State of Tocantins, Brazil [PDF]

, 2007
The Lajeado HR is the fourth hydroelectric power plant constructed in the rio Tocantins. The implementation of hydroelectric plants in the rio Tocantins basin is of high environmental concern because they may result in severe damage to the ichthyofauna ...
Agostinho, Carlos, Freitas, Iriene, Lucinda, Paulo, Marques, Elineide, Oliveira, Rafael, Soares, Anderson   +5 more
core   +2 more sources

Determinantes ambientais da ocorrência de espécies de peixes em riachos de cabeceira da bacia do rio Ivinhema, alto rio Paraná = Environmental determinants of fish species occurrence in headwaters streams of Ivinhema river basin, upper Paraná river

Acta Scientiarum: Biological Sciences, 2007
Com o objetivo de quantificar a importância de algumas característicasfisiográficas dos riachos sobre a ocorrência de quatro espécies de Characidae em riachos de cabeceira na bacia do rio Ivinhema, realizaram-se amostragens bimestrais em dez riachos com ...
Yzel Rondon Súarez, Sabrina Bigatão Valério, Karina Keyla Tondato, Lidiani Queli Lubas Ximenes, Thiago Rota Alves Felipe   +4 more
doaj  

Assessment of Cranial Neural Crest Proliferation Patterns between the Redeye Tetra \u3cem\u3eMoenkhausia Sanctaefilomenae\u3c/em\u3e and the Zebrafish \u3cem\u3eDanio Rerio\u3c/em\u3e [PDF]

, 2016
Among teleost fishes, there is a substantial amount of diversity regarding craniofacial morphology. This study investigated the cellular processes directing the morphological variations observed in the Meckel’s and ceratohyal cartilages of the zebrafish ...
Ingram, Lesly, Walter, Faculty Advisor, Brian   +1 more
core   +1 more source

Food resource used by small-sized fish in macrophyte patches in ponds of the upper Paraná river floodplain = Uso do alimento por peixes de pequeno porte associados às macrófitas aquáticas em lagoas da planície de inundação do alto rio Paraná

Acta Scientiarum: Biological Sciences, 2009
This study analyzed the diet of seven small-sized fish species(Characidae) and assessed their use of food resources. The species were collected in 2001 from nine ponds with aquatic macrophytes in the Paraná river floodplain, Brazil. Astyanax altiparanae,
Valdirene Esgarbosa Loureiro Crippa, Norma Segatti Hahn, Rosemara Fugi   +2 more
doaj  

Investigation of the Shared and Divergent Anatomical Features of Fishes From the Suborder Characoidei [PDF]

, 2019
The order Characiformes is split into two major suborders; Characoidei and Citharinoidei, and includes over 2,000 different species of ray-finned fish, including a variety of Tetras often found in pet stores.
Ziomek, Samantha
core   +1 more source

Parasites of four ornamental fish from the Chumucuí River (Bragança, Pará, Brazil) Parasitas de quatro peixes ornamentais do Rio Chumucuí (Bragança-Pará, Brasil)

Revista Brasileira de Parasitologia Veterinária, 2013
The objective of the present study was to evaluate the parasite fauna of four species of ornamental fish collected in the Chumucuí River, municipality of Bragança, Pará, Brazil. From June 2006 to December 2007.
Rodrigo Yudi Fujimoto, Zaira Monik Nunes de Barros, Adjalbas Nunes Marinho-Filho, Daniel Guerreiro Diniz, Jorge Costa Eiras   +4 more
doaj  

THE CONSERVATION STATE OF CHARACIDAE FISH (PISCES: CHARACIFORMES) IN AN AREA OF THE PLATA BASIN, ARGENTINA ESTADO DE CONSERVACION DE PECES CHARACIDAE (PISCES: CHARACIFORMES) EN UN AREA DE LA CUENCA DEL PLATA, ARGENTINA

Gayana, 2007
The fish conservation was quantified by means of the index SUMIN, composed by the summation of 12 outstanding variables for the species survival and/or conservation.
Marcelo A Zayas, Elly Cordiviola
doaj  

Ictiofauna Da Cachoeira De São Roberto E Peixes Do Baixo Rio Preto, Bacia Do Alto Rio Paraná, Brasil [PDF]

, 2017
Rheophilic environments typically houses fish species with specific ecological requirements. Thus, the suppression of these environments can lead to damaging impacts to local and regional fauna.
Carvalho F.R., Gonçalves C.C., Santos A.C.   +2 more
core   +1 more source

Exchange flow between open water and floating vegetation [PDF]

, 2010
This study describes the exchange flow between a region with open water and a region with a partial-depth porous obstruction, which represents the thermally-driven exchange that occurs between open water and floating vegetation.
A Lightbody, A Padial, C Adams, C Lovstedt, D Barr, D Plew, E Adams, FM White, G Jirka, G Ultsch, Heidi M. Nepf, J Shin, JE Simpson, M Coates, M Coates, M Mariana, N Azza, R Hill, T Benjamin, X Zhang, X Zhang, Xueyan Zhang, Y Mazda, Y Tanino, Y Tanino   +24 more
core   +1 more source