Macrozoobenthic Diversity in the Coastal Peatland Ecosystem of Koneng Beach, Dumai, Indonesia
Keywords:
Koneng Beach; Macrozoobenthos; Riau Province; Peatland EcosystemAbstract
Koneng Beach in Dumai City, Riau Province, is a coastal area located on a peatland ecosystem and is influenced by industrial and shipping activities, making it vulnerable to environmental pressures that affect benthic organisms. This study aims to analyze the diversity of macrozoobenthos in the coastal peatland ecosystem of Koneng Beach and was conducted on May 12, 2024. A purposive sampling method was employed, with three observation stations and line transects. Sampling was carried out during low tide using 1 × 1 m² quadrats. Macrozoobenthic community analysis included abundance calculation, the Shannon-Wiener diversity index (H'), and the dominance index (C). The identification results revealed only one species of macrozoobenthos, Mysotella myosotis (class Gastropoda). The diversity index (H') was 0, indicating very low diversity, while the dominance index (C) was 1, indicating high dominance by a single species. These conditions suggest that the aquatic ecosystem of Koneng Beach is experiencing ecological stress, likely related to anthropogenic activities and environmental pollution. Further research is needed to examine the relationship between pollution levels and the structure of the macrozoobenthos community in this area.
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