A barrier to upstream migration in the fish passage of Itaipu Dam (Canal da Piracema), Paraná River basin

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 desague 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 upstream of this critical section. Individuals of both species released downstream of the CABV took much more time to reach the upper end of the system (43.6 days vs. 15.9 days), and passed in much lower proportions (18% vs. 60.8%) than those tagged upstream of this component. Although more work is needed to differentiate between fishway effects and natural variation in migratory motivation, the results clearly demonstrate passage problems at the CABV.

[1]  A. Haro,et al.  Evaluation of Nature-Like and Technical Fishways for the Passage of Alewives at Two Coastal Streams in New England , 2012 .

[2]  Theodore Castro-Santos,et al.  PERFORMANCE OF FISH PASSAGE STRUCTURES AT UPSTREAM BARRIERS TO MIGRATION , 2012 .

[3]  F. Pelicice,et al.  EXISTING AND FUTURE CHALLENGES: THE CONCEPT OF SUCCESSFUL FISH PASSAGE IN SOUTH AMERICA , 2012 .

[4]  L. Miranda,et al.  Ascent of neotropical migratory fish in the Itaipu Reservoir fish pass , 2011 .

[5]  H. Tritico,et al.  The effects of turbulent eddies on the stability and critical swimming speed of creek chub (Semotilus atromaculatus) , 2010, Journal of Experimental Biology.

[6]  Theodore Castro-Santos,et al.  Fish guidance and passage at barriers , 2010 .

[7]  R. E. Barreto,et al.  Fish ladders select fish traits on migration–still a growing problem for natural fish populations , 2009 .

[8]  A. L. Godinho,et al.  Migratory fishes of Brazil: Life history and fish passage needs , 2009 .

[9]  Theodore Castro-Santos,et al.  Fishway Evaluations for Better Bioengineering: An Integrative Approach , 2009 .

[10]  F. Fish.  Swimming Strategies for Energy Economy , 2010 .

[11]  F. Pelicice,et al.  Dams and the fish fauna of the Neotropical region: impacts and management related to diversity and fisheries. , 2008, Brazilian journal of biology = Revista brasleira de biologia.

[12]  P. Pompeu,et al.  Swimming performance of the freshwater neotropical fish: Pimelodus maculatus Lacepède, 1803. , 2008, Brazilian journal of biology = Revista brasleira de biologia.

[13]  R. E. Barreto,et al.  16.P9. Fish ladder selects biological traits in upstream migrating curimbata, Prochilodus lineatus , 2007 .

[14]  P. Pompeu,et al.  Swimming performance of the migratory Neotropical fish Leporinus reinhardti (Characiformes: Anostomidae) , 2007 .

[15]  C. B. Martinez,et al.  A Importância do Estudo da Capacidade Natatória de Peixes para a Conservação de Ambientes Aquáticos Neotropicais , 2007 .

[16]  L. Gomes,et al.  Utilization of the fish ladder at the Engenheiro Sergio Motta Dam, Brazil, by long distance migrating potamodromous species , 2007 .

[17]  L. Gomes,et al.  The Canal da Piracema at Itaipu Dam as a fish pass system , 2007 .

[18]  A. Agostinho,et al.  Preliminary study on the application of radio-telemetry techniques to evaluate movements of fish in the Lateral canal at Itaipu Dam, Brazil , 2007 .

[19]  R. Cortes,et al.  PIT telemetry as a method to study the habitat requirements of fish populations: application to native and stocked trout movements , 2007, Hydrobiologia.

[20]  A. Agostinho,et al.  Spatial and temporal gradients in artisanal fisheries of a large Neotropical reservoir, the Itaipu Reservoir, Brazil , 2005 .

[21]  Theodore Castro-Santos,et al.  Swimming performance of upstream migrant fishes in open-channel flow: a new approach to predicting passage through velocity barriers , 2004 .

[22]  Theodore Castro-Santos,et al.  Quantifying the combined effects of attempt rate and swimming capacity on passage through velocity barriers , 2004 .

[23]  A. Agostinho,et al.  Flood regime, dam regulation and fish in the Upper Paraná River: effects on assemblage attributes, reproduction and recruitment , 2004, Reviews in Fish Biology and Fisheries.

[24]  M. Lucas,et al.  Efficiency of a nature‐like bypass channel for sea trout (Salmo trutta) ascending a small Danish stream studied by PIT telemetry , 2003 .

[25]  A. Haro,et al.  Quantifying migratory delay: a new application of survival analysis methods , 2003 .

[26]  A. Agostinho,et al.  Efficiency of fish ladders for neotropical ichthyofauna , 2002 .

[27]  C. Baigún,et al.  Performance of a fishway system in a major South American dam on the Parana River (Argentina–Paraguay) , 2002 .

[28]  M. Larinier.  Fishways - General considerations , 2002 .

[29]  Alex Haro,et al.  Performance of stationary and portable passive transponder detection systems for monitoring of fish movements , 2001 .

[30]  Martyn C. Lucas,et al.  Methods for studying spatial behaviour of freshwater fishes in the natural environment , 2000 .

[31]  C. Katopodis,et al.  Attraction and Passage Efficiency of White Suckers and Smallmouth Bass by Two Denil Fishways , 1999 .

[32]  M. Larinier,et al.  The Impact of Obstacles on the Pau River (France) on the Upstream Migration of Returning Adult Atlantic Salmon (Salmo salar L.) , 1999 .

[33]  O. Croze,et al.  Impact des aménagements sur la migration anadrome du saumon atlantique (Salmo salar L.) sur le gave de Pau (France) , 1999 .

[34]  A. Haro,et al.  A passive integrated transponder (PIT) tag system for monitoring fishways , 1996 .

[35]  Paul D. Allison,et al.  Survival Analysis Using SAS: A Practical Guide, Second Edition , 1995 .

[36]  A. A. Agostinho,et al.  Estratificacion espacial y comportamiento de Prochilodus scrofa en distintas fases del ciclo de vida, en la planici de inundacion del alto rio Parana y embalse de Itaipu, Parana, Brasil , 1993 .

[37]  L. Nielsen.  Methods of Marking Fish and Shellfish , 1992 .

[38]  E. Kaplan,et al.  Nonparametric Estimation from Incomplete Observations , 1958 .