Research Article
Water Physicochemistry and Zooplankton Fauna of Aiba Reservoir Headwater Streams, Iwo, Nigeria
Table 5
Occurrence and abundance of zooplankton in Aiba Reservoir headwater streams (May 2013–March 2014).
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Taxon | Aiba stream | Onikan stream |
Total abundance (ind·m−3) | Upper reaches’ abundance (ind·m−3) | Lower reaches’ abundance (ind·m−3) | Upper reaches’ abundance (ind·m−3) | Lower reaches’ abundance (ind·m−3) |
| Protozoa | | | | | | Actinophrys sp. | 22 | — | — | — | 22 | Amoeba radiata | 22 | — | — | 22 | 44 | Arcella sp. | — | 286 | — | 22 | 308 | Centropyxis sp. | — | — | — | 22 | 22 | Loxodes magnus | — | — | — | 88 | 88 | Rotifera | | | | | | Anuraeopsis fissa | — | — | — | 44 | 44 | Anuraeopsis racenensis | 44 | — | — | 22 | 66 | Ascomorpha ovalis | 22 | — | — | — | 22 | Asplanchna brightwelli | — | 22 | — | — | 22 | Asplanchna priodonta | — | 198 | 22 | 44 | 264 | Brachionus angularis | — | 22 | — | — | 22 | Brachionus quadridentatus | — | 22 | — | 22 | 44 | Euchlanis triquetra | 22 | — | — | — | 22 | Keratella lenzi | — | — | — | 22 | 22 | Lepadella patella biloba | 22 | — | — | — | 22 | Lepadella patella similis | — | 44 | — | 22 | 66 | Mytilina ventralis | — | — | — | 44 | 44 | Testudinella patina | — | — | — | 22 | 22 | Trichocerca sp. | — | — | — | 22 | 22 | Copepoda | | | | | | Bryocamptus minutus | 22 | — | — | — | 22 | Cleptocampus sp. | 66 | 88 | — | — | 154 | Eucyclops macrurus | 44 | 506 | — | 132 | 682 | Halicyclops korodiensis | — | — | — | 88 | 88 | Halicyclops troglodytes | — | — | — | 88 | 88 | Mesocyclops ogunnus | 154 | 244 | 44 | 528 | 970 | Microcyclops varicans | 44 | 528 | 22 | 440 | 1034 | Nauplius larva | 506 | 7216 | 44 | 4312 | 12078 | Thermocyclops crassus | — | 308 | — | 176 | 484 | Thermocyclops neglectus | 22 | 396 | — | 286 | 704 | Ostracoda | | | | | | Chrissia humilis | — | 66 | — | — | 66 | Hemicypris ovata | — | 22 | 22 | — | 44 | Heterocypris makua | — | 308 | — | 110 | 418 | Stenocypris derupta | 44 | 110 | — | — | 154 | Insecta | | | | | | Chaoborus sp. | 110 | — | — | 44 | 154 | Ceratopogonid larva | — | 22 | — | — | 22 | Chironomid sp. | 220 | 198 | 44 | 154 | 616 | Coenagrion pulchellum | 22 | — | — | — | 22 |
| Number of species | 17 | 19 | 6 | 24 | 37 | Total abundance (ind·m−3) | 1408 | 10606 | 198 | 6776 | 18988 |
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