Results 91 to 100 of about 3,173 (211)

Ictiofauna da bacia do Rio Jacaré-Guaçu, bacia do Alto Rio Paraná [PDF]

open access: yes, 2011
This study aimed to evaluate the fish fauna composition and distribution in different environments, up- and downstream the Gavião Peixoto Dam, in the Jacaré-Guaçu River basin.
ARCIFA, Marlene Sofia   +1 more
core   +2 more sources

Fish associated with aquatic macrophytes in the Chacororé-Sinhá Mariana Lake system and Mutum River, Pantanal of Mato Grosso, Brazil Peixes associados a macrófitas aquáticas no sistema de baías Chacororé-Sinhá Mariana e rio Mutum, Pantanal - MT

open access: yesBrazilian Journal of Biology, 2009
On the left bank of the Cuibá River, one of the main tributaries of the Pantanal in Mato Grosso, are located the Chacororé and Sinhá Mariana Lakes and the Mutum River, the littoral regions of which are covered with aquatic macrophytes, dominated by the ...
EB. Pacheco, CJ. Da-Silva
doaj   +1 more source

Ictiofauna epígea e subterrânea na área cárstica da Serra do Ramalho, nordeste brasileiro, com listas de peixes troglóbios e troglófilos no Brasil [PDF]

open access: yes, 2008
After an ichthyofaunistic survey in several epigean (surface) water bodies of the Serra do Ramalho, southern Bahia, conducted in May 2007, 44 species were recorded; in addition, three non-troglomorphic (normally eyed and pigmented) and two troglomorphic ...
BICHUETTE, Maria Elina   +3 more
core   +1 more source

A phylogenomic approach to reconstruct interrelationships of main clupeocephalan lineages with a critical discussion of morphological apomorphies

open access: yesBMC Evolutionary Biology, 2018
Background Previous molecular studies on the phylogeny and classification of clupeocephalan fishes revealed numerous new taxonomic entities. For re-analysing these taxa, we perform target gene capturing and subsequent next generation sequencing of ...
Nicolas Straube   +4 more
doaj   +1 more source

Distribuição espaço-temporal do ictioplâncton no Rio do Peixe, sobre influência de pequenas centrais hidrelétricas (Alto Rio Uruguai, Brasil) [PDF]

open access: yes, 2009
TCC (graduaçãoem Agronomia) - Universidade Federal de Santa Catarina, Centro de Ciências Agrárias, 2009.Esse estudo visa avaliar a distribuição e ocorrência do ictioplâncton no Rio do Peixe sobre influência de duas Pequenas Centrais Hidrelétricas (PCH´s)
Figueiredo, Gabriela Maria Maimone de
core  

Composição e distribuição de comunidades de peixes na planície de inundação do rio Taquari, Pantanal, MS. [PDF]

open access: yes, 2014
Este estudo teve o objetivo de caracterizar a ictiofauna da planície de inundação bacia do baixo Rio Taquari (Pantanal, MS) quanto à estrutura e diversidade de suas comunidades.
AOKI, C.   +3 more
core  

The fish fauna of the Iwokrama Forest [PDF]

open access: yes, 2005
Fishes were collected from the rivers in and around the Iwokrama Forest during January-February and November-December 1997. Four hundred species of fish were recorded from forty families in ten orders.
Arjoon, D   +5 more
core   +1 more source

Karyotypic Diversity and Evolution in a Sympatric Assemblage of Neotropical Electric Knifefish

open access: yesFrontiers in Genetics, 2018
Chromosome changes can perform an important role in speciation by acting as post-zygotic reproductive barriers. The Neotropical electric fish genus Brachyhypopomus (Gymnotiformes, Hypopomidae) has 28 described species, but cytogenetic data are hitherto ...
Adauto L. Cardoso   +9 more
doaj   +1 more source

Neotropical electric fishes (Gymnotiformes) as model organisms for bioassays

open access: yesJournal of Coastal Life Medicine, 2015
Electric fishes (Gymnotiformes) inhabit Central and South America and form a relatively large group with more than 200 species. Besides a taxonomic challenge due to their still unresolved systematic, wide distribution and the variety of habitats they occupy, these fishes have been intensively studied due to their peculiar use of bioelectricity for ...
Ferreira, Milena   +3 more
openaire   +2 more sources

Les stratégies de reproduction et les premiers stades de vie des poissons du fleuve Sinnamary (Guyane française) : une revue bibliographique [PDF]

open access: yes, 1994
Le barrage hydro-électrique de Petit-Saut, construit par Electricité de France sur le fleuve Sinnamary en Guyane française, a été fermé en janvier 1994. Cet ouvrage a profondément modifié un milieu dont les éléments avaient co-évolué depuis de nombreuses
Ponton, Dominique, Tito de Morais, Luis
core  

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