Table 4 Zooplankton species occurrence and abundance (individuals/m3) in the Opa Reservoir, Obafemi Awolowo University, Ile-Ife, Osun State, Nigeria (February 2018–November 2018)
From: Planktonic flora and fauna of Opa Reservoir wetlands, Obafemi Awolowo University, Ile-Ife, Nigeria
S. no | Taxon | Locations | Total | |||||
|---|---|---|---|---|---|---|---|---|
Site A | Site B | Site C | Site D | Site E | Site F | |||
| Â | Rotifera | Â | Â | Â | Â | Â | Â | Â |
1 | Anuraeopsis fissa | 0 | 0 | 0 | 150 | 0 | 50 | 200 |
2 | Argonotholca foliacea | 0 | 50 | 400 | 0 | 0 | 0 | 450 |
3 | Argonotholca sp.1 | 0 | 0 | 50 | 0 | 0 | 0 | 50 |
4 | Argonotholca sp.2 | 0 | 0 | 50 | 0 | 0 | 0 | 50 |
5 | Ascomorpha sp. | 0 | 0 | 0 | 0 | 50 | 0 | 50 |
6 | Asplanchna sp. | 0 | 50 | 0 | 0 | 0 | 0 | 50 |
7 | Brachionus falcatus | 0 | 0 | 100 | 0 | 0 | 200 | 300 |
8 | Filinia opoliensis | 0 | 0 | 0 | 0 | 0 | 150 | 150 |
9 | Hexarthra sp. | 0 | 0 | 0 | 0 | 0 | 50 | 50 |
10 | Keratella sp. 1 | 0 | 0 | 0 | 0 | 50 | 850 | 900 |
11 | Keratella sp. 2 | 0 | 0 | 0 | 0 | 0 | 50 | 50 |
12 | Keratella sp. 3 | 0 | 0 | 0 | 150 | 0 | 100 | 250 |
13 | Keratella tropica | 0 | 0 | 0 | 0 | 0 | 50 | 50 |
14 | Lecane (monostyla) lunaris | 0 | 0 | 50 | 0 | 100 | 0 | 150 |
15 | Lecane sp. | 0 | 0 | 0 | 0 | 0 | 50 | 50 |
16 | Lepadella patella | 0 | 0 | 0 | 150 | 0 | 0 | 150 |
17 | Polyarthra remata | 0 | 0 | 0 | 0 | 0 | 100 | 100 |
18 | Trichocerca porcellus | 50 | 0 | 0 | 0 | 0 | 0 | 50 |
19 | Trichocerca sp. | 0 | 0 | 0 | 0 | 0 | 100 | 100 |
| Â | Arthropoda | Â | Â | Â | Â | Â | Â | Â |
20 | Calanus sp. | 0 | 0 | 0 | 0 | 0 | 50 | 50 |
21 | Chaoborus sp. (larvae) | 0 | 0 | 50 | 0 | 0 | 0 | 50 |
22 | Copepod (calanoid) nauplius | 0 | 0 | 0 | 0 | 100 | 50 | 150 |
23 | Copepod (cyclopoid) nauplius | 50 | 50 | 0 | 0 | 0 | 700 | 750 |
24 | Diaptomus sp. 1 | 0 | 0 | 0 | 0 | 0 | 50 | 50 |
25 | Diaptomus sp. 2 | 0 | 0 | 0 | 0 | 0 | 50 | 50 |
26 | Mesocyclops edax | 0 | 0 | 0 | 0 | 50 | 0 | 50 |
27 | Mesocyclops sp. | 0 | 0 | 100 | 0 | 50 | 0 | 150 |
28 | Moinodaphnia sp. | 0 | 0 | 0 | 0 | 0 | 50 | 50 |
29 | Paracyclops chiltoni | 0 | 0 | 0 | 0 | 0 | 300 | 300 |
30 | Senecalla calanoides | 0 | 0 | 0 | 0 | 0 | 50 | 50 |
31 | Senecella sp. | 50 | 50 | 50 | 0 | 0 | 0 | 100 |
32 | Thermocyclops inopinus | 0 | 0 | 0 | 0 | 0 | 50 | 50 |
| Â | Protozoa | Â | Â | Â | Â | Â | Â | Â |
33 | Vermamoeba sp. 1 | 0 | 0 | 0 | 0 | 0 | 50 | 50 |
34 | Vermamoeba sp. 2 | 0 | 50 | 50 | 0 | 0 | 0 | 100 |
35 | Vermamoeba sp. 3 | 0 | 50 | 0 | 0 | 0 | 0 | 50 |
36 | Vermamoeba vermiformis | 50 | 0 | 50 | 0 | 0 | 0 | 50 |
| Â | Taxa richness | 4 | 6 | 10 | 3 | 6 | 21 | 36 |
| Â | Abundance | 200 | 300 | 950 | 450 | 400 | 3150 | 5250 |
|  | Shannon–Wiener index | 1.386 | 1.792 | 1.923 | 1.099 | 1.733 | 2.415 | 3.039 |
| Â | Margalef index | 0.566 | 0.877 | 1.313 | 0.327 | 0.835 | 2.483 | 3.969 |
| Â | Simpson | 0.750 | 0.833 | 0.781 | 0.667 | 0.813 | 0.856 | 0.925 |
| Â | Evenness index | 1 | 1 | 0.684 | 1 | 0.943 | 0.533 | 0.597 |