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Fishway with two entrance branches: Understanding its performance for potamodromous Mediterranean barbels
Fishway with two entrance branches: Understanding its performance for potamodromous Mediterranean barbels
- Source :
- Fisheries Management and Ecology. 25:12-21
- Publication Year :
- 2017
- Publisher :
- Wiley, 2017.
-
Abstract
- Many fish passes have been built across the world in recent years. This study analyses the performance of a modified type of pool and weir fishway with two access branches, using passive integrated transponder telemetry. A circumāMediterranean barbel, Luciobarbus bocagei (Steindachner, 1864), was chosen as the target species. Both hydraulic values (flow and volumetric energy dissipation) and biological parameters (attraction, entrance and passage success) were measured in the fishway, these being related to the environmental variables affecting upstream fish movement. Flow discharge, water temperature and atmospheric pressure were important for fish entering the fishway. There was no preference between path routes, even though the main discharge was concentrated in the turbine channel. This type of fishway design could be an alternative for the conservation of fish populations where multiple fish approach options are possible.
- Subjects :
- 0106 biological sciences
Mediterranean climate
Hydrology
Barbel
geography
Fish migration
geography.geographical_feature_category
Ecology
biology
010604 marine biology & hydrobiology
Flow (psychology)
010501 environmental sciences
Aquatic Science
Luciobarbus bocagei
biology.organism_classification
01 natural sciences
Fish ladder
Weir
Environmental science
Channel (geography)
0105 earth and related environmental sciences
Subjects
Details
- ISSN :
- 0969997X
- Volume :
- 25
- Database :
- OpenAIRE
- Journal :
- Fisheries Management and Ecology
- Accession number :
- edsair.doi...........d66416c48ee7777e0d9baf85ee641ea5
- Full Text :
- https://doi.org/10.1111/fme.12260