Macrozoobenthos Diversity and Functional Feeding Group (Ffg) in Berembang River of West Kalimantan

Abstract

This study analyzes macrozoobenthos diversity and functional feeding group in Berembang River, Kubu Raya Regency, West Kalimantan. The obtained macrozoobenthos were identified to the genus level, and their functional feeding group was determined through a literature study. Data on diversity, evenness, and dominance were analyzed descriptively. Diversity (H') and Evenness (E) of macrozoobenthos in Berembang River were low (H'=0.73 and E=0.15) while Dominance (C) was high (C=0.81) as evidenced by a large number of genera Corbicula and Gammarus. Macrozoobenthos functional feeding groups found at both stations can be divided into six categories, namely shredders, gathering collectors, deposit feeders, sub-surface deposit feeders, filtering collectors, and scrapers.

Community structure of phytoplankton in Downstream of the Segedong River, Kubu Raya Regency, West Kalimantan

“…Pengambilan sampel fitoplankton dilakukan pada tiga stasiun yang terletak ke arah hilir sungai tetapi masih berada pada kawasan hutan lindung mangrove. Pada masing-masing stasiun, diambil tiga titik yaitu pada bagian tepi kanan, tengah dan tepi kiri karena lebar sungai >5 meter mengacu pada Candramila et al (2022). Sampel air disaring sebanyak 100 Liter ke dalam plankton net berukuran mesh 30 µm dengan menggunakan ember bervolume 5 L sebanyak 20 kali.…”