Fish passage and canoeing on the largest fish transposition system - Martins Fontes Junior, Hélio
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The Canal da Piracema is the longest fish passage in the world and the solely of its kind in South America. It was constructed aiming to favor the gene flow of the Paraná River fish fauna and to promote outdoors activities, such as canoeing and rafting, allowed in some sections of the Canal. The ascent of migratory fish was evaluated using the technology of radio frequency identification (RFID) and passive integrated transponders (PIT). Significant differences were obtained in the time of ascent for individuals of two migratory species, allowing to ascertain the main bottleneck of the system.…mehr

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Produktbeschreibung
The Canal da Piracema is the longest fish passage in the world and the solely of its kind in South America. It was constructed aiming to favor the gene flow of the Paraná River fish fauna and to promote outdoors activities, such as canoeing and rafting, allowed in some sections of the Canal. The ascent of migratory fish was evaluated using the technology of radio frequency identification (RFID) and passive integrated transponders (PIT). Significant differences were obtained in the time of ascent for individuals of two migratory species, allowing to ascertain the main bottleneck of the system. It was also assessed the effect of canoeing on fish movements and the factors that may restrict the ascent of migratory species, based on fish samplings conducted on days with and without canoeing. Models for every possible influence scenario were proposed and adjusted to identify the best fit. These studies can serve as a reference to guide the implementation or assessment of similar systems designed to allow both the passage of fish and the practice of water sports.
Autorenporträt
The author is biologist from University of São Paulo (1982) with PhD in freshwater ecology by Maringá State University, Brazil (2011). He worked at Itaipu Binacional for 28 years where he retired as Senior Biologist Level II, having experience in several areas of ecology, with emphasis on the ecology of reservoirs, fish passage and fish migration.