Smolt Migration Studies

InStream is involved with a number of smolt migration studies including population assessments, growth analysis, coded wire tagging and acoustic tracking initiatives. We have experience in designing smolt traps on small tributaries (1-2m bank width) through large river structures (Keogh fence 32m width) as well as sub sampling using incline plane traps, and rotary screw traps (RST's).

Rotary Screw Trap in Operation on Cheakamus River, BC.
Image courtesy D. McCubbing

Assessments include,

fish growth and survival through long term steelhead studies on the Keogh River, including fish aging by scale analysis
coho smolt estimation and survival analysis
acoustic tagging of steelhead smolts
population assessments of multiple species with RST's through generations
run timing studies
smolt production response analysis to restoration efforts
steelhead supplementation residual studies

Fisheries Research Inc.

Smolt Migration Studies

Rotary Screw Trap in Operation on Cheakamus River, BC. Image courtesy D. McCubbing

Rotary Screw Trap in Operation on Cheakamus River, BC.
Image courtesy D. McCubbing