Characteristics of the Distribution Pattern and Density of Enhalus acoroides in the Waters of Malahing Village, Bontang City, East Kalimantan, Indonesia
DOI:
https://doi.org/10.30872/0vgfyv32Keywords:
seagrass, density, Enhalus acoroides, marine, East KalimantanAbstract
Enhalus acoroides is one of the most widely distributed seagrass species in the coastal waters of Bontang, East Kalimantan, Indonesia. This study aimed to determine the distribution pattern characteristics and density of Enhalus acoroides in the waters of Malahing Village, Bontang City, East Kalimantan. The research was conducted from October 2024 to February 2025. Seagrass vegetation data were analyzed using species density, relative density, species frequency, relative frequency, species coverage, relative coverage, and the Important Value Index (IVI). The distribution pattern of seagrass was assessed using the Morisita Dispersion Index (MDI), while environmental factors influencing the distribution pattern were described and presented in observational tables. Sampling was carried out using 50 × 50 cm quadrats along transects at each station with three replications. The results revealed the presence of two seagrass species in the waters of Malahing Village, namely Enhalus acoroides and Thalassia hemprichii, with E. acoroides being the dominant species. Seagrass density across the four sampling stations ranged from 92 to 216 shoots m⁻². The Morisita Dispersion Index (MDI) analysis indicated that Enhalus acoroides exhibited a uniform distribution pattern, as evidenced by an index value of Id < 1.
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