Stream Macrofauna

Das, Indraneil and Jongkar, Grinang and Pui, Yong Min (2015) Stream Macrofauna. In: Life from Headwaters to the Coast Tanjung Datu National Park : where Borneo begins. Natural History Publications (Borneo) Sdn. Bhd., Kota Kinabalu, UNIMAS Publisher, Sarawak Forestry Corporation Sdn Bhd, Kota Samarahan, pp. 63-65.

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Abstract

The relatively short streams originating from the low hills in Tanjung Datu National Park do not support many species of aquatic macrofauna, presumably because of their geomorphologically narrow, shallow and short nature, channel gradients rapidly changing from upstream to downstream, as expected from the River Continuum Concept. Stream channels are shaded with overhanging canopy, and have rocky substrate with cool, crystal clear and fast fl owing water. Survey at two streams recorded one fi sh species (Brachygobius aggregatus; Herre, 1940), three shrimp species (Atyopsis moluccensis [De Haan, 1849], Caridina typus [H. Milne Edwards, 1837] and Macrobrachium idea [Heller, 1862]), three crab species, Bakousa aff. kenepai (De Man, 1899), Isolapotamon consobrinum (De Man, 1899) and an unidentifi able, possibly new, Ibanum species, and one species of snail (Nerita sp.).

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