Results 71 to 80 of about 3,364 (181)

Observation of the Catfish Chaetostoma microps Climbing in a Cave in Tena, Ecuador

open access: yesSubterranean Biology, 2015
As part of a mapping and preliminary flora and fauna inventory of hypogean life in caves, developed in Cretaceous limestones in the sub-andean zone of Ecuador, we were able to observe a number of catfish climbing a steep flowstone waterfall in the dark ...
Geoffrey Hoese   +3 more
doaj   +1 more source

The brain of Brycon orbignyanus (Valenciennes, 1850) (Teleostei: Characiformes: Bryconidae): gross morphology and phylogenetic considerations

open access: yesNeotropical Ichthyology
The brain of Brycon orbignyanus is described as a model for future studies of the gross morphology of the central nervous system in Characiformes. The study of brain gross morphology of 48 distinct taxa of Characiformes, one of Cypriniformes, two of ...
Thiago N. A. Pereira   +1 more
doaj   +1 more source

IDENTIFIKASI JENIS - JENIS IKAN DI SUNGAI BATANG GADIS KECAMATAN MUARASIPONGI KABUPATEN MANDAILING NATAL SUMATERA UTARA

open access: yesBioLink, 2017
Research about "Identification the type of fish in Sungai Batang Gadis Muarasipongi subdistrict Mandailing Natal Sumatra Utara" The study aims to determine the types of fish and Chemical Physics parameters.
Anwar anwar   +2 more
doaj   +1 more source

Dos especies nuevas de Creptotrema (Digenea: Allocreadiidae) de America del Sur

open access: yesRevista Mexicana de Biodiversidad, 2008
DOS ESPECIES NUEVAS DE DIGÉNEOS PERTENECIENTES A CREPTOTREMA TRAVASSOS, ARTIGAS Y PEREIRA, 1928 FUERON DESCRITAS DE EJEMPLARES DEPOSITADOS EN LA COLECCIÓN DE INVERTEBRADOS DEL MUSEO DE HISTORIA NATURAL DE GINEBRA, SUIZA. CREPTOTREMA LAMOTHEI N. SP.
STEPHEN S. CURRAN
doaj   +1 more source

Assembléia de peixes de um riacho da Floresta Atlântica: composição e distribuição espacial (Guaraqueçaba, Paraná, Brasil) - DOI: 10.4025/actascibiolsci.v27i2.1326

open access: yesActa Scientiarum: Biological Sciences, 2008
No presente estudo, foram determinadas a composição e a distribuição espacial da assembléia de peixes do rio Morato no extremo nordeste do estado do Paraná.
Almir Peterson Barreto   +1 more
doaj   +1 more source

ESTUDIO COMPARATIVO DE OVARIOS Y CUBIERTAS OVOCITARIAS EN PECES SILURIFORMES DE AGUAS CONTINENTALES DE CHILE A COMPARATIVE STUDY OF THE OVARIES AND OOCYTE ENVELOPES OF FRESHWATER SILUROID CATFISHES FROM CHILE

open access: yesGayana, 2002
El conocimiento de la estructura ovárica permite analizar la capacidad desovante, duración, temporalidad y forma en que se realiza esta función reproductiva.
Laura G. Huaquín   +2 more
doaj  

Complete mitochondrail genome of Corydoras panda (Teleostei, Siluriformes, Callichthyidae, Corydoradinae)

open access: yesMitochondrial DNA. Part B. Resources, 2019
We reported the complete mitochondrial genome yielded by next-generation sequencing of Corydoras panda in this study. The total length of the mitochondrial genome is 16,611 bp, with the base composition of 32.50% A, 26.30% T, 26.10% C, and 15.10% G ...
Qiaolin Liu   +3 more
doaj   +1 more source

CONSERVATION STATE OF SILURIFORMES FISHES FROM THE RAMSAR SITE JAAUKANIGAS (MIDDLE PARANA RIVER), ARGENTINA ESTADO DE CONSERVACION DE PECES SILURIFORMES DEL SITIO RAMSAR JAAUKANIGAS (RIO PARANA MEDIO), ARGENTINA

open access: yesGayana, 2009
The Siluriformes conservation state was quantified by means of the SUMIN index, composed by the sum of 12 outstanding variables for the species survival and/or conservation.
Elly Cordiviola   +4 more
doaj  

Two new species of Creptotrema (Digenea: Allocreadiidae) from South America Dos especies nuevas de Creptotrema (Digenea: Allocreadiidae) de América del Sur

open access: yesRevista Mexicana de Biodiversidad, 2008
Two new digenean species belonging in Creptotrema Travassos, Artigas and Pereira, 1928 are described from specimens stored in the invertebrate collection at the Museum of Natural History, Geneva, Switzerland. Creptotrema lamothei n. sp. is described from
Stephen S. Curran
doaj  

Reproducción de peces y consideración de ambientes en eventos de crecidas en el río Portuguesa, Venezuela Reproduction of fishes in flooding events of Portuguesa River, Venezuela

open access: yesBioagro, 2004
Se reporta la reproducción de peces en eventos de crecidas del río Portuguesa, Venezuela. En los llanos altos (alrededor de 100 msnm) y sólo en velocidades específicas de crecida (mayores de 0,59 m/s) fueron colectados huevos de peces que presentaron ...
Douglas Rodríguez-Olarte   +1 more
doaj  

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