Results 1 to 10 of about 243 (120)

VALEUR PATRIMONIALE DE SERRASALMINAE HERBIVORES DU HAUT MARONI (GUYANE FRANÇAISE) : APPROCHES BIOLOGIQUE ET SOCIOCULTURELLE EN PAYS WAYANA. [PDF]

open access: yesKnowledge and Management of Aquatic Ecosystems: an International Journal on Aquatic Ecosystems, 2002
La valeur patrimoniale des kumaru, espèces de poissons appartenant à la sous-famille des Serrasalminae, a été approchée selon des critères faisant référence à leur place au sein de la biodiversité ou de la sociodiversité.
PAGEZY H., JÉGU M.
exaly   +7 more sources

Comparative cytogenetics of Serrasalmidae (Teleostei: Characiformes): The relationship between chromosomal evolution and molecular phylogenies. [PDF]

open access: yesPLoS ONE, 2021
Serrasalmidae has high morphological and chromosomal diversity. Based on molecular hypotheses, the family is currently divided into two subfamilies, Colossomatinae and Serrasalminae, with Serrasalminae composed of two tribes: Myleini (comprising most of ...
Ramon Marin Favarato   +6 more
doaj   +3 more sources

UNE NOUVELLE ESPÈCE DE TOMETES (TELEOSTEI : CHARACIDAE : SERRASALMINAE) DU BOUCLIER GUYANAIS, TOMETES LEBAILI N. SP. [PDF]

open access: yesKnowledge and Management of Aquatic Ecosystems: an International Journal on Aquatic Ecosystems, 2002
Tometes lebaili n. sp. diffère de Tometes trilobatus Valenciennes, 1850, par la position de la bouche, oblique et dirigée vers le haut. T. lebaili présente 7 à 8 dents à la série labiale du dentaire contre 5 chez T. trilobatus. T.
P Keith
exaly   +7 more sources

Mapping of ribosomal genes and chromosomal markers in three species of the genus Serrasalmus (Characidae, Serrasalminae) from the Amazon basin

open access: yesGenetics and Molecular Biology, 2008
Karyotypic characteristics of three species of the genus serrasalmus ( S. altispinnis , S. gouldingi and S. Serrulatus ) from the middle and lower Negro River, Amazon Basin, were investigated using different staining techniques and Fluorescent in situ ...
Eliana Feldberg, Feldberg Eliana
exaly   +5 more sources

Restoration Effects of the Riparian Forest on the Intertidal Fish Fauna in an Urban Area of the Amazon River. [PDF]

open access: yesScientificWorldJournal, 2016
Urbanization causes environmental impacts that threaten the health of aquatic communities and alter their recovery patterns. In this study, we evaluated the diversity of intertidal fish in six areas affected by urbanization (areas with native vegetation, deforested areas, and areas in process of restoration of vegetation) along an urban waterfront in ...
Sá-Oliveira JC   +7 more
europepmc   +2 more sources

Weight-Length Ratio of Piranhas <i>Serrasalmus</i> (Characiformes, Serrasalmidae) in Bolivia: Relationships to Molecular Divergence and Maximum Size? [PDF]

open access: yesEcol Evol
This 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

Early Biogeography of Otophysi Points to the Neotropics as the Cradle of Characiphysan Fishes. [PDF]

open access: yesEcol Evol
Otophysan fishes represent 70% of living freshwater fishes with 12,000 species. Relationships among their four orders were explored through a dense taxonomic sampling including 529 complete mitochondrial genomes and 4 nuclear genes for 324 species.
Lenglin A   +9 more
europepmc   +2 more sources

Behavior of Rio Sao Francisco Piranhas in Response to Changes in Space and Density. [PDF]

open access: yesZoo Biol
ABSTRACT Previous observations of Rio Sao Francisco piranhas (Pygocentrus piraya) at Cleveland Metroparks Zoo revealed frequent aggressive interactions, which were associated with the injury and death of some individuals. Fishes are known to increase aggressive behavior when available space is limited.
Oldfield RG   +4 more
europepmc   +2 more sources

Expanded description of Dolops bidentata (Bouvier, 1899) (Branchiura: Argulidae) based on specimens collected on Pygocentrus nattereri Kner, 1858 (Characiformes) from Poconé Wetland, MT, Brazil Descrição expandida de Dolops bidentata (Bouvier, 1899) (Branchiura: Argulidae) baseada em espécimes parasitos de Pygocentrus nattereri Kner, 1858 (Characiformes) do Pantanal de Poconé, MT, Brasil

open access: yesBrazilian Journal of Biology, 2011
The current information on the branchiuran Dolops bidentata, a species described more one hundred years ago, is valid but incomplete; hence, an expanded description is given herein.
AT. Silva-Souza   +4 more
doaj   +1 more source

Alimentação e ecomorfologia de duas espécies de piranhas (Characiformes: Characidae) do lago de Viana, estado do Maranhão, Brasil Feeding and ecomorphology of two species of piranhas (Characiformes: Characidae) from the Viana Lake, Maranhão state, Brazil

open access: yesActa Amazonica, 2005
Serrasalmus aff. brandtii e Pygocentrus nattereri são duas espécies de piranhas comuns no Lago de Viana, um lago formado a partir das inundações do Rio Pindaré, tributário da margem esquerda do Rio Mearim.
Nivaldo Magalhães Piorski   +3 more
doaj   +1 more source

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