Research Article
Environmental Determinants Influencing Fish Community Structure and Diversity in Two Distinct Seasons among Wetlands of Northern Region (Ghana)
Table 2
Relative abundance of fish species recorded in the six sites, during the dry and wet seasons. (—) = absent.
| Family | Species | Dry season | Wet season |
| Alestidae | Alestes dentex | 129 | 108 | Alestes baremoze | 64 | 71 | Brycinus nurse | 160 | 155 | Brycinus macrolepidotus | 92 | 24 | Hydrocynus brevis | 17 | — | Hydrocynus forskali | 4 | — | Micralestes occidentalis | — | 83 |
| Bagridae | Bagrus bajad | 47 | — | Bagrus docmac | 3 | — |
| Cichlidae | Oreochromis niloticus | 297 | 202 | Sarotherodon galilaeus | 342 | 154 | Chromidotilapia guntheri | 10 | — | Tilapia dageti | 19 | 81 | Tilapia zilli | — | 61 |
| Citharinidae | Citharinus citharus | 28 | — | Citharinus latus | 5 | — |
| Centropomidae | Lates niloticus | 28 | 8 |
| Channidae | Parachanna obscura | 20 | 6 |
| Clariidae | Clarias gariepinus | 99 | 32 | Clarias anguillaris | 38 | 80 | Heterobranchus bidorsalis | 77 | 15 | Clarias laeviceps | — | 19 | Clarias camerunensis | — | 6 | Heterobranchus longifilis | — | 7 |
| Claroteidae | Auchenoglanis occidentalis | 98 | 109 | Chrysichthys auratus | 6 | — |
| Cyprinidae | Labeo coubie | 139 | 41 | Labeo senegalensis | 103 | 99 | Labeo parvus | 9 | 15 | Raimas nigeriensis | — | 12 |
| Distichodontidae | Distichodus engycephalus | 25 | — | Distichodus rostratus | 7 | — |
| Mochokidae | Synodontis clarias | 42 | 38 | Synodontis membranaceus | 9 | 13 | Synodontis eupterus | 35 | — | Synodontis schall | 90 | 86 | Synodontis nigrita | 12 | 36 | Synodontis velifer | 85 | 8 | Hemisynodontis membranaceus | 7 | 11 | Synodontis bastiani | — | 12 |
| Malapteruridae | Malapterurus electricus | 6 | 2 |
| Mormyridae | Hyperopisus bebe | 13 | 18 | Hyppopotamyrus paugyi | — | 2 | Marcusenius senegalensis | 102 | 100 | Mormyrus hasselquistii | 1 | — | Mormyrus rume | 10 | 51 | Petrocephalus bovei | 20 | 14 | Mormyrus delicious | — | 10 | Mormyrops breviceps | — | 4 |
| Osteoglossidae | Hetrotis niloticus | 14 | 12 |
| Schilbeidae | Schilbe intermedius | 131 | 90 | Schilbe mystus | 17 | 33 |
| Polypteridae | Polypterus senegalus senegalus | 5 | — | Polypterus endlicheri | 24 | 7 |
| Total | | 2,239 | 1,938 |
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