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I compiled some highlights from the October 2018 Cameroon survey. I think its the first time i have seen Knifefish (Papyrocranus afer) on the underwater videos before at 3:20. Also what looks like Pelmatolapia mariae at 2:00. I studied the freshwater biodiversity (fish and Odonata) over four days. The study focus was small westward flowing streams (+- 2 m-3 m wide) approximately 60 km south east of Doula, Cameroon. Fish diversity was high and typical of the Southern Gulf of Guinea Drainage's Freshwater Ecoregion with approximately 40 species of fish observed during the 4 day survey. The background sounds were recorded using bioacoustic recording equipment in the morning next a stream under secondary forest. From 1:30 a rainstorm passes over the area. 4K version available here: • Small Tropical Stream Ecology in Came... https://www.youtube.com/channel/UCBaQ