Diseño de obras de paso compatibles con la migración de peces

Resumen

Traditionally, fish passage barriers have been associated with the presence of dams, weirs and natural obstructions that block passage to upstream habitat. However fish passage can be impeded due to less obvious reasons, such as local hydraulic conditions (velocity, depth, power, turbulence...) that are beyond the swim capability or the biological requirements of fish species. These are common situations in culverts and drainage structures frequently used as road crossings. This paper discusses the different fish passage problems commonly found in culverts and explains methods outlining a crossing analysis and tools available for improving culvert design to accommodate fish passage.