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	Provedor de dados Neotropical Ichthyology (3) Autor Reynalte-Tataje,David A. (3) Zaniboni-Filho,Evoy (3) Agostinho,Angelo A. (1) Bialetzki,Andrea (1) Garcia,Valquíria (1) Lima,Fabíula T. de (1) Lopes,Carolina A. (1) Nunes,Michele C. (1) Nuñer,Alex P. O. (1) Mais... Palavra-chave Ichthyoplankton (2) Reproduction (2) Dams (1) Environmental variables (1) Hydrological Parameters (1) Itá (1) Juveniles (1) Machadinho (1) Temporal distribution (1) Uruguay River (1) Water flow (1) Water temperature (1) Mais... Tipo do documento Info:eu-repo/semantics/article (3) Ano 2017 (1) 2012 (2) País Brazil (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Spawning of migratory fish species between two reservoirs of the upper Uruguay River, Brazil Neotropical Ichthyology Reynalte-Tataje,David A.; Nuñer,Alex P. O.; Nunes,Michele C.; Garcia,Valquíria; Lopes,Carolina A.; Zaniboni-Filho,Evoy. This study investigated the migratory fish spawning within the reservoirs of the Machadinho and Itá dams (upper Uruguay River, Brazil) and its relationship to environmental variables. Sampling was conducted in the lotic region of the river in two sites between the dams' reservoirs: Uruguay (main river) and Ligeiro (tributary). Sampling included nine consecutive reproductive periods (RP) spanning the period from 2001 to 2010 and was conducted at night on the water surface using cylindrical-conical plankton nets (0.5 mm mesh); environmental variables were also recorded. The spawning of the migratory species Salminus brasiliensis, Prochilodus lineatus, and Steindachneridion scriptum was registered: S. brasiliensis and P. lineatus spawned in the tributary... Tipo: Info:eu-repo/semantics/article Palavras-chave: Ichthyoplankton; Temporal distribution; Water flow; Water temperature. Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252012000400016 Effects of reservoirs water level variations on fish recruitment Neotropical Ichthyology Lima,Fabíula T. de; Reynalte-Tataje,David A.; Zaniboni-Filho,Evoy. ABSTRACT The construction of hydroelectric power plants has many social and environmental impacts. Among them, the impacts on fish communities, which habitats are drastically modified by dams, with consequences across the ecosystem. This study aimed to assess the influence of water level (WL) variations in the reservoirs of the Itá and Machadinho hydroelectric plants on the recruitment of fish species from the upper Uruguay River in southern Brazil. The data analyzed resulted from the WL variation produced exclusively by the hydroelectric plants generation and were collected between the years 2001 and 2012. The results showed significant correlations between the abundance of juvenile fish and the hydrological parameters only for some reproductive guilds.... Tipo: Info:eu-repo/semantics/article Palavras-chave: Hydrological Parameters; Itá; Juveniles; Machadinho; Reproduction; Uruguay River. Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252017000300211 Temporal variability of fish larvae assemblages: influence of natural and anthropogenic disturbances Neotropical Ichthyology Reynalte-Tataje,David A.; Zaniboni-Filho,Evoy; Bialetzki,Andrea; Agostinho,Angelo A.. Natural and induced disturbances greatly influence the temporal distribution of ichthyoplankton abundance. This study assesses and compares the temporal variability of fish larvae assemblages in controlled and free environments to determine the influence of environment variables on the main taxa in these systems. The study was conducted at the Chapecó (without dam impact) and Ligeiro (with dam impact) river mouths, which are located in the upper Uruguay River. Samples were made between October 2001 and March 2004 during three reproductive periods. The larvae assemblages were composed of small and medium-sized Characiformes and Siluriformes. The variation in the distribution of larvae was mainly temporal (>85%). When the three reproductive periods were... Tipo: Info:eu-repo/semantics/article Palavras-chave: Dams; Environmental variables; Ichthyoplankton; Reproduction. Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252012000400017 Registros recuperados: 3 Primeira ... 1 ... Última

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