Keanekaragaman dan Kelimpahan Moluska Pantai Konservasi dan Pantai Wisata di Kecamatan Gunungkidul, Yogyakarta

Nadiya Syafia Shani, Restu Utari Dewina, Muhammad Ardillah Rusydan, Andhika Puspito Nugroho

Abstract


Anthropogenic activities along the coastline can lead to microplastic pollution, which disrupts aquatic ecosystems. Mollusks are one of the organism groups that can serve as bioindicators of environmental health. This study aimed to assess the diversity of mollusks on a conservation beach (Porok Beach) and a recreational beach (Drini Beach). Samples were collected using the transect line method in intertidal and subtidal zones. Six quadrats measuring 1x1 m² were placed at 5-meter intervals along the transect. Mollusks were identified, and their density, frequency, importance value, and diversity index were calculated. A total of nine species were recorded at Porok Beach, with Conus sponsalis showing the highest density, frequency, and importance value index. In contrast, five species were identified at Drini Beach, with Modiolus modulaides exhibiting the highest density, frequency, and importance value index. The Shannon-Wiener index revealed that the diversity at Porok Beach (1.98) was higher than at Drini Beach (0.64). Mollusk diversity and abundance were greater on the conservation beach compared to the recreational beach. These findings suggest that the pressures from anthropogenic activities can reduce the quality of coastal ecosystems, emphasizing the need for proper management to protect the environment in recreational beach areas.

Keywords


Conservation beach, Diversity, Mollusks. Recreational beach

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DOI: https://doi.org/10.17509/ijom.v6i1.85251

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p-ISSN: 2722-1946 , e-ISSN: 2722-4260