Assemblages of Aquatic Fauna in the River Systemsof Claver, Surigao del Norte, Philippines

A survey of aquatic fauna in selected river systems of Claver, Surigao Del Norte was conducted from 2022 to 2023. This study recorded six taxa of macroinvertebrates with 92 total mean individuals, dominated mostly by Order Hemiptera and Decapoda. Among fishes, eight families were recorded mostly comprising cichlids, siganids and holocentrids. Heavy silt deposits with eroded stream banks characterized their habitat. In turn, this has affected the stream flow rate that ranged from 0.18 to 110.1 m3/sec. Given this scenario, it is imperative to do proactive means of appropriate conservation and management initiatives for the river systems of Surigao del Norte.

Keywords: River system, tropical fauna, siltation, Surigao del Norte