Results 61 to 70 of about 1,276 (199)

Influência de diferentes níveis de luminosidade sobre o desempenho de larvas de Jundiá (Rhamdia quelen) (Quoy e Gaimard, 1824) (Pisces: pimelodidae)

Acta Scientiarum: Biological Sciences, 2008
O presente trabalho foi realizado com o objetivo de verificar o efeito de 3 níveis de luminosidade (T1=1,2 lux; T2=17 lux e T3=20 lux) sobre o crescimento e a sobrevivência de larvas de jundiá (Rhamdia quelen), durante as 3 primeiras semanas de cultivo ...
Everton Rodolfo Behr, João Radünz Neto, Ana Paula Tronco, Ana Paula Fontana   +3 more
doaj   +1 more source

The Length–Weight Relationship in Food Fish Species From the Upper Putumayo River Basin, Colombia

Journal of Applied Ichthyology, Volume 2025, Issue 1, 2025.
The length–weight relationship (LWR) in fish is an important tool because it allows understanding aspects such as growth assessment, body condition, and biomass estimation. The aim of this study was to determine the LWR of food fish species from the Amazonian plain of the Putumayo River caught by artisanal fisheries to be sold in the town of Puerto ...
César A. Bonilla-Castillo, Edwin Agudelo Córdoba, Yintao Jia   +2 more
wiley   +1 more source

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

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

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

Peer Review #3 of "Development of rapid and cost-effective multiplex PCR assays to differentiate catfish of the genus Brachyplatystoma (Pimelodidae–Siluriformes) sold in Brazil (v0.2)"

, 2023

openalex   +1 more source

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

Indução de tripoidia em Rhamdia quelen (Pisces, Pimelodidae)

Boletim do Instituto de Pesca, 2018
A técnica de indução de triploidia em Rhamdia quelen foi padronizada mediante aplicação de choques térmicos quentes de diferentes durações e em diferentes momentos pós-fecundação. A sobrevivência ao choque térmico foi determinada no momento da eclosão das larvas.
Pedro Vozzi, Sebastián Sánchez, Enrique Permingeat   +2 more
openaire   +1 more source