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Nº.66. Automatic floodgate for the salmon

Nº.66. Automatic floodgate for the salmon
Nº.66. Automatic floodgate for the salmon

J.M. García Nájera

Affiliation: Instituto Forestal de Investigaciones y Experiencias (IFIE)

Biography: Not available


J.M. García Nájera

About the authors 

Publication year: 1953

Language: Spanish, with summaries in English, French and German

Subjects: Environment, Animal

Collection: IFIE Publications, IFIE Serial Monographs

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The passage of migrating fish at dams of a height of about 10 m offers no more any difficulty, but there remains still to find a solution for fish passages at great barrages which are now very frequent. An immediate solution of this problem is urgently felt if there are to be conserved the valuable species abounding in the Spanish rivers and amongst them especially the salmon. In this paper is studied and described in detail an automatic fish pass, actioned by mere hydraulic power and composed of simple, robust and inalterable organs, permitting the fish to overcome, without danger and fatigue, all kind of obstacles of any height. A pilot model, in reduced scales, of a dam 20 m high has shown its perfect hydraulic working and it is to be hoped that, according to the arguments exposed in this paper, there will be obtained also satisfactory result from the biological point of view.

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Physical Description : 17x24; 35 p.; il

Publication: Madrid : Instituto Forestal de Investigaciones y Experiencias (IFIE), 1953

Reference INIA: IFIE BO-066

Other data of interest: - INIA. Servicio de Publicaciones. Ctra Coruña km 7,5. 28040 MADRID. Contact: distri@inia.es. Tel: (34) 91-3471493.

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