Consulta: creatorFacets:"Latini,João Dirço"
Registros recuperados: 3
Data/hora: 10/06/2024 02:36:24

A barrier to upstream migration in the fish passage of Itaipu Dam (Canal da Piracema), Paraná River basin
Provedor de dados: 83
Autores: Fontes Júnior,Hélio Martins; Castro-Santos,Theodore; Makrakis,Sergio; Gomes,Luiz Carlos; Latini,João Dirço.
The majority of the fish passages built in the Neotropical region are characterised by low efficiency and high selectivity; in many cases, the benefits to fish populations are uncertain. Studies conducted in the Canal da Piracema at Itaipu dam on the Parana River indicate that the system component designated as the Discharge channel in the Bela Vista River (herein named Canal de deságue no rio Bela Vista or CABV), a 200 m long technical section, was the main barrier to the upstream migration. The aim of this study was to evaluate the degree of restriction imposed by the CABV on upstream movements of Prochilodus lineatus and Leporinus elongatus, Characiformes. Fish were tagged with passive integrated transponders (PIT tags) and released both downstream and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish migration; Nature-like; Neotropical fishes; PIT-tag; Telemetry.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252012000400002

Preliminary study on the application of radio-telemetry techniques to evaluate movements of fish in the Lateral canal at Itaipu Dam, Brazil
Provedor de dados: 83
Autores: Hahn,Lisiane; English,Karl; Carosfeld,Joachim; Silva,Luiz Gustavo Martins da; Latini,João Dirço; Agostinho,Angelo Antônio; Fernandez,Domingo Rodriguez.
A preliminary study on the application of radio-telemetry techniques to describe the movements of fish in a bypass channel at Itaipu Dam (Paraná River), known as "Canal da Piracema," was carried out between January and February of 2004. Fourteen individuals of six species (Prochilodus lineatus, Leporinus friderici, Schizodon borellii, Pseudoplatystoma fasciatum, Pterodoras granulosus and Cichla kelberi) were intragastrically and surgically radiotagged and monitored by three experimental fixed radio-telemetry stations installed in the upper portion of the Canal. The surgical implantation of transmitters and the anesthesia using clove oil proved to be more efficient and allowed easier handling in comparison to intragastric implantation and electronarcosis...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Itaipu Dam; Fish channel; Migratory fish; Radio-telemetry.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252007000200003

Morphological description of larvae of the Mapará Hypophthalmus edentatus (Spix) (Osteichthyes, Hypophthalmidae) in the Itaipu reservoir (Parana River, Brazil)
Provedor de dados: 104
Autores: Nakatani,Keshiyu; Baumgartner,Gilmar; Latini,João Dirço.
The ontogenetic aspects of larvae of Hypophthalmus edentatus (Spix, 1829) from the ichthyoplankton samples collected in the Itaipu reservoir between March 1988 and April 1990 were analysed. Sample were caught by 0.5 mm mesh conic-cylindrical plankton net. Larvae of H. edentatus were identified and described as Siluriforms from the morphological and morphometric development series. They have a small to medium-sized head, long body, small eyes, little pigmentation, mandibular barbules and 53 to 56 myomeres. High values obtained with correlation coefficient (r &gt; 0.97; p &lt; 0.001) show that growth was proportional in different parts of the body.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hypophthalmus edentatus; Fish larvae; Itaipu reservoir; Larval development; Paraná River.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751998000300013