Engineering Commons^™

Effect Of Substrate Roughness, Slope, And Body Size On Climbing Behavior And Performance Of Juvenile American Eels (Anguilla Rostrata), Zahra Anwar

Environmental & Water Resources Engineering Masters Projects

The effect of ramp slope and substrate grain size on the passage of juvenile American Eel (Anguilla rostrata) over indoor ramps was tested from May – August 2016. Two size classes of fish (300 glass eels 50 – 70 mm and 300 elvers 90-114 mm), five substrates varying in coarseness (Substrate 1: 0.18-0.25 mm grain size, Substrate 2: 0.25-0.60 mm grain size,

Substrate 3; 0.60-1.00 mm grain size, Substrate 4: 1.00 – 2.00 mm grain size, Substrate 5: 2.00-

4.00 mm grain size), and three ramp slopes (25, 35 and 45 degrees) were explored. Individual fish were placed …