| S/N | Themes | Frequency of the topic | Citations |
| 1 | Fish habitat and littoral zone habitats | 15 | [1, 4, 5, 7, 8, 10, 11, 19, 21–25] | 2 | Aquatic vegetation, microphytes, and macrophyte | 13 | [9, 16, 19, 21, 25–29] | 3 | Water quality (turbidity and internal nutrient loading/cyanobacterial blooms) | 10 | [1, 4, 12–17, 20, 30] | 4 | Predation | 5 | [2, 22, 31, 32] | 5 | Food web and invertebrates/ | 3 | [8, 20, 33] | 6 | Fish physiology | 4 | [5, 6, 19, 34] | 7 | Energy use | | [24, 35–37] | 8 | Fish breeding success | 20 | [1, 6, 7, 11, 14, 15, 31, 34, 38–46] |
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