| J | F | M | A | M | J | J | A | S | O | N | D | Country | Locality |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 111 | 111 | 111 | 111 | 111 | 111 | Nicaragua | Lake Moyua, 1962 | ||||||
| 111 | 111 | 111 | 111 | 111 | 111 | South Africa | Lake Sibaya | ||||||
| 111 | 111 | 111 | 111 | 111 | 111 | 111 | 111 | 111 | 111 | 111 | 111 | Sri Lanka | Parakrama Samudra reservoir, February 1978 - January 1979 |
| 111 | 111 | 111 | 111 | 111 | 111 | Hong Kong | Plover Cove Reservoir | ||||||
| 111 | 111 | 111 | 111 | 111 | 111 | 111 | 111 | 111 | 111 | 111 | 111 | Sri Lanka | Various reservoirs |
| Sri Lanka | Various reservoirs, 1982-1983 |