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32 Science Manual – Using Video Images for Fisheries Monitoring

5.2 Warkworth, River Coquet

Type of fish pass: Pool and traverse and Denil (Figure 14)

Power supply: Mains power available

System deployment: Trial deployment

Information required: Evidence of fish using the pass

Identification: Species level

Sizing: Not during trial

Cost of system hardware (not including image processing): below £1,000

System components

System 1 (Table 2) was used for the trial deployment. This was sufficient for the

purposes of the trial deployment and to obtain evidence that fish were using the

pass.

Camera: One sideways-looking camera

Lighting: None.

Recording hardware: Desktop PC (reconfigured machine from EA CIS team) with

Voltek DVR card

Storage media: Two Freecom USB external hard drives (always one on site)

Image processing: The data collected were processed using both Fishtick and

DVMD.

Figure 14: The North Warkworth pass. Cameras were deployed at the top of the

pass

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