Parameters | Months of observation post-net distribution | |||
---|---|---|---|---|
18 | 24 | 30 | 36 | |
No. of nets surveyed | 97 (10%) | 97 (10%) | 97 (10%) | 731 (78.4%) |
Proportion with any holes | 19.6% | 30.9% | 60.8% | 73.7% |
Average no. of holes/net | 2.7 (52/19) | 3.0 (91/30) | 3.7 (221/59) | 7.3 (3933/539) |
-size 1 | 1.5 | 1.06 | 1.5 | 5.1 |
-size 2 | 1.1 | 1.3 | 1.9 | 1.2 |
-size 3 | 0.05 | 0.7 | 0.2 | 0.9 |
-size 4 | 0.05 | 0.03 | 0.1 | 0.07 |
Mean hole index | 13.2 | 55.7 | 87.1 | 252.2 |
Proportion of holes/net | ||||
-lower half | 78.6 | 89.6 | 72.9 | 61.6 |
-upper half | 14.3 | 6.9 | 21.6 | 24.6 |
-roof | 7.1 | 3.5 | 5.5 | 13.8 |
Repairs/net | ||||
-stitches | 0.01 | 0.07 | 0.23 | 0.7 |
-knots | 0.02 | 0.01 | 0 | 0.4 |
-patches | 0 | 0.01 | 0 | 0.003 |
Aspect of net | ||||
-clean | 56.7 | 58.8 | 41.2 | 42.5 |
-a bit dirty | 0 | 0 | 0 | 29.3 |
-dirty | 41.2 | 41.2 | 58.8 | 19.6 |
-very dirty | 2.1 | 0 | 0 | 8.6 |