Results 31 to 40 of about 311 (149)

Heptapteridae

open access: yes, 2016
Heptapteridae Imparfinis timana Ortega-Lara, Milani, DoNascimiento, Villa-Navarro & Maldonado-Ocampo, 2011: 778, fig. 1. Holotype (Fig. 21). IAvH-P 10696 (74.2 mm SL). Colombia, Huila, Palestina, upper Magdalena River Basin, río Guarapas, in the mouth of quebrada La Quebradona, 01º45’49”N 76º05’05”W, elevation 1350 m; J. A. Maldonado- Ocampo, J. Bogotá-
Donascimiento, Carlos   +4 more
openaire   +2 more sources

Heptapteridae Gill 1861

open access: yes, 2018
Published as part of Mojica, José Ivan & Agudelo-Zamora, Henry D., 2018, Historical review, catalog of type specimens and online database of the ichthyology collection of the Instituto de Ciencias Naturales of the Universidad Nacional de Colombia (ICN-MHN), pp.
Mojica, José Ivan   +1 more
openaire   +2 more sources

Induction of triploidy in Rhamdia quelen (Siluriformes, Heptapteridae) by double temperature shock

open access: yesLatin American Journal of Aquatic Research, 2017
This study evaluated sequential double-temperature shock (heat and cold) to induce triploidy in Rhamdia quelen . Fertilized eggs were heat shocked at 37, 39 and 41°C at 2 min post-fertilization and then cold shocked at 1°C for 20 min. Intact eggs were used as controls. Egg viability in control groups was higher (65.5 ± 37.0%) than that at 37°C (58.2 ±
García, Silvano   +5 more
openaire   +2 more sources

Heptapteridae Gill 1861

open access: yes, 2014
Published as part of Laan, Richard Van Der, Eschmeyer, William N. & Fricke, Ronald, 2014, Family-group names of Recent fishes, pp.
Laan, Richard Van Der   +2 more
openaire   +2 more sources

Cytogenetic Trends in Two Families of the Neotropical Catfishes: Heptapteridae and Pseudopimelodidae (Siluriformes)

open access: yesZebrafish, 2018
Abstract Several neotropical Siluriformes groups suffered important taxonomic revisions based on the evaluation of morphological and molecular characteristics that allow the construction of new phylogenetic hypothesis. In the present study were cytogenetically analyzed six species belonging to Heptapteridae (
González Gouveia, Juceli   +5 more
openaire   +3 more sources

Comparative description and discussion of spermiogenesis and spermatozoal ultrastructure in some species of Heptapteridae and Pseudopimelodidae (Teleostei: Siluriformes)

open access: yesNeotropical Ichthyology
The data obtained in the present study on spermiogenesis and spermatozoal ultrastructure of Pseudopimelodidae and Heptapteridae show that they share some characteristics, but greatly differ from each other. The main differences are the occurrence of type
Irani Quagio-Grassiotto   +3 more
doaj   +1 more source

New records of cave-dwelling populations of Rhamdia catfishes (Siluriformes, Heptapteridae) from Chiapas, Mexico

open access: yesSubterranean Biology, 2023
Dedicated ichthyological surveys in four active karstic caves in the Mexican state of Chiapas (Grijalva River drainage basin) resulted in the discovery of the same number of hypogean populations of Rhamdia catfishes assignable to two different species: R. laticauda and R. guatemalensis.
Martín Alonso Buenavad-González   +5 more
openaire   +3 more sources

Cetopsorhamdia iheringi (Siluriformes, Heptapteridae): a new record for the freshwater ichthyofauna of Argentina.

open access: yesRevista del Museo Argentino de Ciencias Naturales, 2017
Fil: Benitez, Mauricio Fabian. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Nordeste. Instituto de Biologia Subtropical. Universidad Nacional de Misiones. Instituto de Biologia Subtropical; Argentina.
Benitez, Mauricio Fabián   +4 more
openaire   +3 more sources

Length-weight relationships of 29 species of teleost fish from shallow estuarine environment of Samborombon Bay (Rí­­o De la Plata, Argentina)

open access: yesBoletim do Instituto de Pesca, 2016
The lengthí weight relationships (LWR) of 29 teleost fish species from the shallow estuarine environments of the Samborombón Bay wetland (Rí­­o de la Plata, Argentina) were estimated.
Agustín SOLARI   +4 more
doaj   +1 more source

Diversity and distribution of ichthyofauna in streams of the middle and lower Tibagi river basin, Paraná, Brazil [PDF]

open access: yesCheck List, 2018
This study investigates the distribution and structure of the assemblages of fishes in tributaries of middle and lower sections of Tibagi river basin.
Alexander Claro-García   +2 more
doaj   +3 more sources

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