Table 1
Comparison of macrophyte percentage area coverage derived from the 3 spatial monitoring techniques assessed over the same spatial extent within Prospect Reservoir and Landsdowne Lake. Handheld PDA Trimble mapping data was collected by two trained independent field teams; sidescan and satellite imagery was digitised by two trained independent technicians.
| Prospect Reservoir | Landsdowne Lake | |||
|---|---|---|---|---|
| Team/ technician I (%) | Team/ technician II (%) | Team/technician I (%) | Team/technician II (%) | |
| Digitised sidescan imagery | 24.21 | 37.14 | 15.31 | 12.16 |
| PDA Trimble mapping | 18.62 | 21.98 | 8.02 | 13.80 |
| Digitised satellite imagery | 53.31 | 45.99 | 18.12 | 17.48 |
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