Gunningsville Bridge Field Investigation/Data Collection

Gunningsville Bridge Field Investigation/Data Collection

In May the AMEC team will be monitoring the smelt spawning tribs upstream and downstream of causeway for four nights to determine success of smelt spawning run. The reason for this field investigation is to determine whether the current gate-opening strategy is successful in passing smelt upstream. Smelt is the main species that it is hypothesized the gate-opening strategy is successful in passing. Mud has not yet accumulated in the Gunningsville to the causeway corridor, and smelt are thought to pass upstream through the gates as the tidal level approaches and exceeds that of the impoundment (headpond). This is a barometer for the potential effectiveness of the strategy for other species. (i.e.: If the strategy does not work for smelt, it is probably ineffective for other species as well.) This activity will provide better knowledge of the fish community for full-cost accounting.

Tidal bore (Gate open condition)

Ott current meter

ADCP (Acoustic Doppler current profiler) in a specially designed towing package equipped with telemetry from real time data access

Two ADCPs (Acoustic Doppler current profilers) one mounted in high current wing, the other in the trimaran

Brent Law, Department of Fisheries and Oceans, recovering the Glug water sampler.

CTD (conductivity, temperature, depth) being deployed from the bridge

Petitcodiac River from Chateau Moncton - winter conditions

Fresh water bore after opening the gates at low water.

ADCP (Acoustic Doppler current profiler) in specially designed wing for high currents