Results 81 to 90 of about 4,796 (198)

River Geomorphology and Fish Diversity Around the Manseriche Gorge, the Last Andean Crossing Is in Peril

Water Resources Research, Volume 60, Issue 11, November 2024.
Abstract The transition from the Andes to the Amazon lowland hosts a high biodiversity and currently is facing several anthropogenic activities, including hydropower infrastructure projects. Little is known about the geomorphology of the Andean gorges, rivers and the interaction with the fish diversity upstream and downstream of gorges.
J. D. Abad, H. Chicchon, J. Chuctaya, A. Mendoza, H. Valverde, C. Oshiro, M. Montoya   +6 more
wiley   +1 more source

Karyotypes of two species of the genus Pimelodus (Siluriformes, Pimelodidae).

Folia biologica, 2009
A cytogenetic study was conducted on two species of the genus Pimelodus that were collected from the Piquiri river, Paraná, Brazil: Pimelodus paranaensis and Pimelodus heraldoi. Both had a diploid number of 2n=56 chromosomes and a fundamental number (FN) of 104. In P.
Fernando Rodrigo, Treco, Ana Lúcia, Dias   +1 more
openaire   +2 more sources

Diversity of potamodromous fishes in the Tocantins-Araguaia basin [PDF]

Neotropical Ichthyology
Migratory fishes are deeply connected with human societies. In the Tocantins-Araguaia basin, a region marked by high biodiversity, endemism and environmental degradation, there is little information about these fishes. In this scenario, the present study
Thiago Nascimento da Silva Campos, Hasley Rodrigo Pereira, Phâmela Bernardes Perônico, Carine Cavalcante Chamon, Philip Teles Soares, Fernando Mayer Pelicice   +5 more
doaj   +1 more source

Cytogenetic analyses of two endemic fish species from the São Francisco River basin: Conorhynchus conirostris and Lophiosilurus alexandri (Siluriformes)

Genetics and Molecular Biology, 2008
Two Siluriformes species endemic to the São Francisco River basin were characterized by conventional and differential cytogenetic analyses involving C-banding, Ag-nucleolar organizer region (NOR) and chromomycin A3 (CMA3) staining, and FISH (fluorescent ...
Marilza Barbosa de Almeida Marques, Orlando Moreira-Filho, Caroline Garcia, Vladimir Pavan Margarido   +3 more
doaj   +1 more source

Liste commentée des poissons de l'Amazonie bolivienne [PDF]

, 1991
Après une brève présentation de l'Amazonie bolivienne, des milieux prospectés, de l'effort de pêche, des travaux anciens et récents, les auteurs founissent une liste commentée des poissons rencontrés.
Lauzanne, Laurent, Le Guennec, B., Loubens, Gérard   +2 more
core  

Cytogenetics analyses among populations of the fish Iheringichtys labrosus (Kröyer, 1874) (Siluriformes, Pimelodidae). Karyotype analysis, C- banding and AgRONs distribution

Brazilian Journal of Biology
Karyotypic data on Iheringichthys labrosus from several populations of Paraná River/Argentina are presented. The diploid number was 2n=56 and the karyotype consisted of 42m/sm + 14st/a (NF= 98).
S Sanchez, AC Swarça, AS Fenocchio
doaj   +1 more source

Bibliografía de los peces de agua dulce de Argentina y Uruguay : Suplemento 1982 [PDF]

, 1982
Fil: López, Hugo Luis. División Zoología Vertebrados, Museo de La Plata, UNLPFil: Menni, Roberto Carlos. División Zoología Vertebrados, Museo de La Plata, UNLPFil: Ringuelet, Raúl Adolfo. Instituto de Limnología Dr. Raúl A. Ringuelet (ILPLA); Facultad de
López, Hugo Luis, Menni, Roberto Carlos, Ringuelet, Raúl Adolfo   +2 more
core  

Histomorfologia intestinal de Pseudoplatystoma fasciatum alimentado com colostro bovino como fonte de proteína e peptídeos bioativos [PDF]

, 2010
Histological responses of the intestine are key for evaluating nutritional value of feed ingredients, since the organ is not only the chief site of feed digestion and nutrient absorption but also plays an important immunological function ...
CYRINO, José Eurico Possebon, DELGADO, Eduardo Francisquine, KINDLEIN, Liris, MACHADO-NETO, Raul, PAULETTI, Patricia, RODRIGUES, Ana Paula Oeda   +5 more
core   +4 more sources

Fishes from the Itapecuru River basin, State of Maranhão, northeast Brazil

Brazilian Journal of Biology
The Itapecuru is a relatively large river in the northeastern Brazilian state of Maranhão. During several expeditions to this basin, we collected 69 fish species belonging to 65 genera, 29 families and 10 orders.
MC Barros, EC Fraga, JLO Birindelli
doaj   +1 more source