Electronic Theses and Dissertation

Kepiting biola adalah salah satu jenis kepiting dari kelompok kelas Crustacea, ordo decapoda serta termasuk dalam famili Ocypodidae yang hidup didalam lubang serta mencari makan pada saat air surut pada substrat, serta menyesuaikan diri terhadap daerah yang terkena pasang surut air laut. Penelitian ini bertujuan untuk mengidentifikasi dan menganalisis kelimpahan jenis kepiting Biola (Uca sp.) di kawasan ekosistem mangrove di Desa Ruyung kecamatan Mesjid Raya, Kabupaten Aceh Besar. Lokasi penelitian dilakukan di empat stasiun yang ditentukan secara purposive sampling yaitu stasiun 1 Mangrove, Stasiun 2 Tambak, Stasiun 3 Muara Sungai, dan Stasiun 4 Dekat Jalan. Hasil penelitian menunjukkan terdapat 424 individu dari 4 spesies kepiting biola di Desa Ruyung adalah Uca annulipes, Uca coartata, Uca cryptica, dan Uca forcipata. Struktur komunitas kepiting Biola pada daerah Desa Ruyung Aceh Besar dimana nilai keanekaragaman (H) yang tergolong rendah, keseragaman (E) yang sedang dan dominansi (C) tergolong sedang serta pola sebaran (Iδ) tergolong mengelompok. Perhitungan parameter lingkungan (suhu, pH, salinitas, dan substrat) sesuai dengan kehidupan kepiting biola (Uca sp.).

Kata kunci: Kepiting Biola, Uca sp., Ruyung, Stasiun, Mangrove, Penelitian.

ABSTRACT Violin crab is one type of crab from the Crustacea class group, order decapoda and belongs to the Ocypodidae family that lives in holes and forages at low tide on the substrate, and adapts to areas affected by tides. This study aims to identify and analyze the abundance of Violin crab species (Uca sp.) in the mangrove ecosystem area in Ruyung Village, Mesjid Raya sub-district, Aceh Besar District. The research location was carried out at four stations determined by purposive sampling, namely station 1 Mangrove, Station 2 Pond, Station 3 River Estuary, and Station 4 Near the Road. The results showed that there were 424 individuals of 4 species of Violin crabs in Ruyung Village, namely Uca annulipes, Uca coartata, Uca cryptica, and Uca forcipata. The structure of the violin crab community in the Ruyung Aceh Besar Village area where the diversity value (H) is classified as low, uniformity (E) is moderate and dominance (C) is moderate and the distribution pattern (Iδ) is classified as clustered. Calculation of environmental parameters (temperature, pH, salinity, and substrate) suitable for the life of fiddler crabs (Uca sp.). Keywords: Violin Crab, Uca sp., Ruyung, Station, Mangrove, Research.