Consulta: creatorFacets:"Baigún,Claudio"
Registros recuperados: 3
Data/hora: 09/06/2024 04:09:10

Presencia de Corydoras paleatus (Jenyns, 1842), una nueva especie brasílica en el norte de la Patagonia (río Limay) y consideraciones ecológicas relacionadas con su distribución
Provedor de dados: 67
Autores: Baigún,Claudio; López,Guillermo; Dománico,Alejandro; Ferriz,Ricardo; Sverlij,Sara; Delfino Schenke,Ricardo.
El hallazgo de Corydoras paleatus en un brazo secundario del río Limay constituye una novedad zoogeográfica para el norte de la Patagonia argentina. La especie fue capturada mediante electropesca en un gran pozón caracterizado por la presencia de densas macrófitas sumergidas. El hallazgo de Corydoras paleatus extiende considerablemente el límite de distribución austral de esta especie fuera de la región pampeana, donde la especie habita en ríos y lagunas templadocálidos y en los arroyos fríos de la cuenca de Sierra de la Ventana. Con el descubrimiento de Corydoras paleatus, la ictiofauna brasílica representa el 30% del total de especies patagónicas, y se eleva a ocho el número de estas especies en el límite norte de la Patagonia. Esta área representa un...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Corydoras paleatus; Ecotono; Patagonia; Río Colorado; Río Limay; Río Negro.
Ano: 2002
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1667-782X2002000100006

Upstream dam impacts on gilded catfish Brachyplatystoma rousseauxii (Siluriformes: Pimelodidae) in the Bolivian Amazon
Provedor de dados: 83
Autores: Damme,Paul A. Van; Córdova-Clavijo,Leslie; Baigún,Claudio; Hauser,Marilia; Doria,Carolina R. da Costa; Duponchelle,Fabrice.
ABSTRACT This paper explores the effects of two run-of-river dams (Jirau and Santo Antônio) built in cascade in the middle Madeira River (Brazil) on the interruption of long-distance migration routes of the gilded catfish (Brachyplatystoma rousseauxii). A participative monitoring system was set up to compare capture by commercial fishers approximately 1500 km upstream of the dams in Bolivia, before (1998-2007) and after (2015-2017) dam closure. A significant decrease in gilded catfish catches and in catch per unit effort was observed after dam closure, whereas no significant difference in mean weight was found. Back-estimation of age suggests that the few individuals remaining after dam closure in 2009 are a mixture of old homers that returned upstream...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Environmental impact; Fish migration; Fishways; Madeira dams; River connectivity.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252019000500213

Assessment of sábalo (Prochilodus lineatus) fisheries in the lower Paraná River basin (Argentina) based on hydrological, biological, and fishery indicators
Provedor de dados: 83
Autores: Baigún,Claudio; Minotti,Priscilla; Oldani,Norberto.
This study assesses the change in fish exploitation patterns of the sábalo fisheries of the lower Paraná River basin based on hydrological, biological, and fishery indicators. From historical catch records, we recorded a shift from a lightly and moderate exploited status before 2001 to a heavily exploited one, as a result of the development of sábalo exports from 2001 onwards. Channel and floodplain connectivity indices demonstrated that the Paraná exhibited highly favorable hydrological conditions between 1972 and 1999 but more adverse conditions from 1999 to 2009, as a consequence of flood pulses reduction coincident with a fishing mortality increment. A total catch of 15,000 tons, including local consumption, regional market, informal sales, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artisanal fisheries; Flood pulse; Neotropical rivers; Overfishing.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000100199