Fishery material lab. Trial research fishing gears and research insutruments are manufactured and ajusted, and preperation of various researches are done in the fishery material laboratory. A suitable light stimulus for fish behaviour control is estimated by the value of spectral sensitivity of target fish measured by the physiological method and the value of environmental light condition measured by the device of spectroradiometer.
Optical net is the fishing gear considered survival rate of fish after selectivity.