TOAD Sled Underwater Habitat Mapping Vehicle
- Expands survey capabilities for population studies of targeted species.
- Allows for large scale habitat mapping of substrate and biota.
- Increases speed and effectiveness of surveys.
- Eliminates diver fatigue associated with conventional dive surveys.
- Permits complete coverage of a survey area eliminating the need to make habitat predictions based on limited transect studies.
- Sucessfully operated in depths ranging from 3m (10 ft.) to 37m (120 ft.) and currents in excess of 9 knots.
- Rides comfortably at speeds of up to 10 km/hr (6 mph) underwater and 30 km/hr (18 mph) on the surface.
- Highly responsive controls for searching rugged bottom contours and avoiding submerged objects.
- Used to map 400 kms (250 miles) of Vancouver Harbour at depths ranging from 3m (10 ft.) to 20m (65 ft.).
- Currently in operation in British Columbia, Ontario and the Dominican Republic.
- Made of welded heavy duty aluminum and Lexan®.
- Dimensions: 1.6m long x 1.3m wide (5.5 ft. x 4.3 ft.)
- Weight: 25 kilograms (55 lbs)
- Positively buoyant at surface - slightly negative at depth.
- Diver communications is wireless or hard wired through the tow/line umbilical.
- Tow/line umbilical may be modified for use with surface supply air or hot water.
- Optional equipment includes lights, depth gauge, video support system, sonar and Global Positioning System.
Foreshore Inspector Scanning for Internal Marine Borer Damage
“The TOAD Sled continues to be an essential tool for the collection of valuable habitat data critical to port environmental decisions.” Darrell Desjardin,
Vancouver Port Authority