Results 31 to 40 of about 18,024 (300)

Hyphessobrycon nicolasi (Teleostei: Characidae) a new species from the Uruguay River basin in the Mesopotamian Region, Argentina [PDF]

open access: yes, 2010
Hyphessobrycon nicolasi is described from the Uruguay River basin in the Mesopotamian Region, Entre Ríos, Argentina. The new species can be distinguished from all congeners by the presence of a well-defined oblique and marginal black stripe on each lobe ...
Lopez, Hugo Luis   +1 more
core   +3 more sources

Taxonomic revision of Galeocharax (Characiformes: Characidae: Characinae) [PDF]

open access: yesNeotropical Ichthyology, 2017
ABSTRACT The taxonomy of Galeocharax, a genus of freshwater fishes distributed in most South American cis-Andean river systems, except the rio Negro, rio São Francisco and rio Xingu basins and the eastern drainages of Brazil, is herein revised. A total of 1229 specimens were examined from which 680 had meristic and morphometric data taken. Osteological
Giovannetti, Victor   +2 more
openaire   +5 more sources

On the habitat and isolation of Gymnocharacinus bergi (Osteichthyes: Characidae) [PDF]

open access: yesEnvironmental Biology of Fishes, 1995
Gymnocharacinus bergi is a rare Paranensean fish which is the only characiform almost lacking scales in the adult. It is endemic and the only species in a peculiar spot — a tributary of the Valcheta creek — in the Somuncura plateau in northern Patagonia, Argentina, over 300 km from the nearest place with a paranensean fish fauna.
Menni, Roberto Carlos, Gómez, Sergio E.
openaire   +2 more sources

Influence of urbanization on size and biomass of a small-sized characid fish (Diapoma alburnum) in a subtropical river basin of southern Brazil [PDF]

open access: yesBrazilian Journal of Biology
The coastal lagoons of the Tramandaí River basin are dynamic ecosystems characterized by high biodiversity. They provide important ecosystem services, such as water supply for human consumption, industry, agriculture, animal husbandry, leisure activities,
Otávio Gutierrez e Silva   +3 more
doaj   +1 more source

Fish distribution in a small domestic water supply reservoir: a case study of Kangimi Reservoir, Kaduna, Nigeria [PDF]

open access: yes, 2005
A study of the composition and distribution of fish populations in the inshore, surface and bottom water habitats of Kangimi Reservoir showed that the most abundant family was the Cichlidae followed in order of abundance by the familiesCyprinidae ...
Balogun, J.K.
core   +2 more sources

Proximate composition, fatty acids and physicochemical characteristics of artesian meal caribe (Serrasalmus rhombeus Pisces: Characidae) meal oil from Caicara del Orinoco-Venezuela

open access: yesGrasas y Aceites, 2006
Caribe (Serrasalmus rhoembeus) is a Characidae fish that lives in the basins of the Orinoco and Amazon rivers. It is an  underutilized specie although in the last years has been marketed in the form of of a meal which is obtained through a handmade ...
Douglas R. Belén-Camacho   +4 more
doaj   +1 more source

The elusive scleral cartilages: Comparative anatomy and development in teleosts and avians. [PDF]

open access: yesAnat Rec (Hoboken)
Abstract The sclera of all vertebrate eyes is comprised of connective tissue, with some organisms developing cartilage within this tissue. A review of the cartilages that have been described in the vertebrate sclera and their anatomical relationships is discussed together with their potential homology.
Franz-Odendaal TA.
europepmc   +2 more sources

Distribution modeling of Psellogrammus kennedyi (Eigenmann, 1903) and new records in the Lower Paranapanema River, Brazil [PDF]

open access: yesCheck List, 2021
Understanding the potential distribution of non-native species can be an important tool in preventing biological invasions. We recorded for the first time Psellogrammus kennedyi, a small non-native characiform, in the Lower Paranapanema River, Brazil ...
Lucas Ribeiro Jarduli   +5 more
doaj   +3 more sources

Phylogenetic relationships within the speciose family Characidae (Teleostei: Ostariophysi: Characiformes) based on multilocus analysis and extensive ingroup sampling

open access: yesBMC Evolutionary Biology, 2011
Background With nearly 1,100 species, the fish family Characidae represents more than half of the species of Characiformes, and is a key component of Neotropical freshwater ecosystems.
Vari Richard P   +7 more
doaj   +1 more source

Mutilating predation in the Cheirodontinae Odontostilbe pequira (Characiformes: Characidae) [PDF]

open access: yesNeotropical Ichthyology, 2012
We observed individuals of Odontostilbe pequira, a small characid, approaching and biting individuals of larger-bodied fishes of other species. This observation was made in two clear water headwater streams of the Cuiabá basin, Paraguay River system, located in Nobres, Mato Grosso State, Brazil, which led us to investigate the behavioral interactions ...
Diones Krinski   +4 more
openaire   +9 more sources

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