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| Population | Total distance along transect (m) | Predation level |
Grid reference |
No. shoals | No. individuals | Mean of body length(TL) in mm (±s.d.) | |
|---|---|---|---|---|---|---|---|
| N | W | ||||||
| Paria | 50 | Low | 10°45′ | 61°16′ | 9 | 76 | 10.01±1.43 |
| Upper Aripo | 50 | Low | 10°41′ | 61°14′ | 12 | 115 | 10.38±1.46 |
| Lower Aripo | 70 | High | 10°40′ | 61°14′ | 11 | 99 | 10.41±1.08 |
| Arouca | 100 | High | 10°40′ | 61°19′ | 9 | 99 | 9. 85±1.75 |
