User manual

48 Science Manual – Using Video Images for Fisheries Monitoring
• The runner to have an inside depth of 35 to 40 mm, width of 620 mm and to
extend to the top of the fish pass wall so that the board/panel can be slotted in
and lowered into position.
• The two front retaining flanges to be 30 mm long.
• If a light panel is required, this should be 30 mm x 600 mm x height equivalent to
Q10.
Bed recess
Not required.
Camera channel
See general specification.
Camera mount
• It is recommended that the camera mount is constructed from Kee Systems
(www.keesystems.com
) Kee Klamp range of products.
• A vertical pole (size 6) to be bolted to a plate on the side wall of the camera
channel using a Type 70 “rail support” (size 6) clamp. This must be easy to
remove and attach as necessary whilst setting up cameras (Figure 20.3).
• The vertical pole to slot over a spike in the bottom of the camera channel, to hold
it in place (Figure 20.3).
• Cameras contained within Type 16 “clamp-on tee” (size 6) clamps (Figure 21.4).
Depending on what make of camera is being used, it may be necessary to pad
cameras out with rubber to ensure a good fit within the clamps. Check cameras
fit before installation.
• The clamps containing the cameras to be attached to the vertical scaffold pole
using Type 114 swivel tees (Figure 21). This will allow the cameras to be aimed
up and down.
• Cameras to be mounted above each other on the scaffold pole. It is
recommended that no more than four cameras are used at once, because data
processing with large numbers of cameras can be time-consuming. In addition,
some of the data processing software available for fish pass camera data is
designed to collect and process data from a maximum of four cameras.
• Measurements provided in Figure 22 must be checked to ensure that, once in
place, the cameras are in the centre of the channel and that the channel walls are
not within the fields of view. If different clamps and poles other than those
recommended are used, then the measurements in Figure 22 will change.
Stop log grooves
Stop log groove (100 mm x 100 mm) situated at the very end of the exit flow
straightener upstream of the lighting, to allow isolation of lighting panels and camera
chamber for work and maintenance (Figure 25).
Water velocity
Maintain water velocity of 0.5 ms
-1
(coarse fish) to 1.0 ms
-1
(salmonids) to deter fish
holding in the upstream exit channel.
A1.5 Pool and traverse
Users: Please fill this section in yourselves.