Results 111 to 120 of about 860,253 (247)

Cytogenetic and morphometric differences in populations of Astyanax "scabripinnis" (Pisces, Characidae) from Maringá region, PR, Brazil

open access: yesGenetics and Molecular Biology, 1998
A cytogenetic and morphometric study of four populations of characid fish assigned to the "complex" of Astyanax scabripinnis originating from three riverine basins, namely Ivaí (populations A and B), Paranapanema (C) and Paraná (D), was carried out ...
Mizoguchi Sônia Maria Hiromi Nakagawa   +1 more
doaj  

Age determination by sclerite numbers, and scale variations in six fish species from the Central Amazon (Osteichthyes, Characoidei)

open access: yes, 1984
The scales of 6 different species of three families (Brycon cf. melanopterus (Characidae), Semaprochilodus theraponura (Curimatidae), Semaprochilodus taeniulus (Curimatidae), Prochilodus nigricans (Curimatidae), Curimata cf .
Soares, G., Werder, U.
core  

The role of biotechnology in aquaculture and fisheries development [PDF]

open access: yes, 2012
Biotechnology per se is not a panacea for the world's problems of hunger and poverty. However, genetic engineering in particular, offers outstanding potentials to increase the efficiency of animal improvement.
Shedrack, J., Uneke, B.I.
core  

The fish fauna of Brokopondo Reservoir, Suriname, during 40 years of impoundment

open access: yesNeotropical Ichthyology
We investigated long-term changes in the fish fauna of Brokopondo Reservoir, Suriname, the first large reservoir (1560 km²) that was created in tropical rainforest. Before closure of the dam in 1964, the fish fauna of Suriname River had 172 species, high
Jan H. Mol   +3 more
doaj   +1 more source

On the homologies of the skeletal components of catfish (Teleostei: Siluriformes) suspensorium [PDF]

open access: yes, 2001
There has been much controversy concerning the identity of the components of the suspensorium in Siluriformes (catfishes). This confusion has implications not only for comparative morphology, but also for phylogenetic studies.
Chardon, M., Diogo, R., Oliveira, C.
core  

On some species of Astyanax reported erroneously from Argentina [PDF]

open access: yes, 2015
Several species of Astyanax have been reported from Argentina which currently are considered not to be distributed so far South or whose identity as Astyanax is doubtful.
Koerber, Stefan, Mirande, Juan Marcos
core  

Three new species of Bryconamericus (Characiformes, Characidae), with keys for species from Ecuador and a discussion on the validity of the genus Knodus [PDF]

open access: yes
Tres nuevas especies de Bryconamericus (Characiforme, Characidae), con claves de identificación para las especies de Ecuador y discusión sobre la validez del género Knodus Se describen tres especies nuevas de peces carácidos pertenecientes al género ...
García–A., C.   +3 more
core  

Osteología y lepidología de Gymnocharacinus Bergi [Pisces Characidae] [PDF]

open access: yes, 1983
Fil: Miquelarena, Amalia María. CONICETFil: Aramburu, Raúl Horacio.
Aramburu, Raúl Horacio   +1 more
core  

Hemigrammus arua, a new species of characid (Characiformes: Characidae) from the lower Amazon, Brazil [PDF]

open access: yes
A new Hemigrammus species is described from tributaries of the igarapé Juruti Grande and rio Arapiuns, lower rio Amazonas, Pará State, Brazil. The new species can be easily diagnosed from all its congeners, except from Hemigrammus stictus (Durbin), by ...
LIMA, Flávio C. T.   +2 more
core   +1 more source

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