SPOT REKRUTMEN KARANG PADA TERUMBU BUATAN BIOREEFTEK DI PERAIRAN PESISIR DESA KEROBOKAN,BULELENG, BALI Eghbert
DOI:
https://doi.org/10.21776/ub.jfmr.2021.005.02.28Keywords:
Coral recruitment, Bioreeftek, water quality, visual census, Kerobokan Village, BaliAbstract
Perairan pesisir Desa Kerobokanmemiliki wilayah terumbu karang yang penting karena terdapat spot rekrutmen sebagai wilayah terumbu buatan alami. Penelitian ini bertujuan untuk mengetahui nilai indeks keanekaragaman, keseragamandan dominansi karang pada terumbu buatan alami “Bioreeftek†di salah satu spot perairan pesisir Desa Kerobokan, Kecamatan Sawan, Kabupaten Buleleng, Provinsi Bali.Metode penelitian yang diaplikasikan adalah observasi dengan sensus visual dengan kamera bawah air dan peralatan selam SCUBA pada enam unit terumbu buatan. Pengambilan data observasi dilakukan pada September 2020. Total rekrutmen karang yang ditemukan sebanyaksembilan jenis biota pada terumbu buatan B1-B6 (B=Bioreeftek), yaituPodobacia sp, Sponge, Atriolum robustum, Favites sp, Gorgonia sp, Porites sp, Diploastrea sp, Coralline algae dan Pocillopora damicornis. IndeksKeanekaragaman tertinggi B3 = 3,4; Indeks Keseragaman tertinggi B3 = 2, 48; Indeks Dominansi tertinggi B5 = 0,68. Biota yang paling banyak ditemukan pada terumbu buatan B1-B6 adalahCoralline algae dan karang Scleractinia dari jenisFavites sp. Kondisi kualitas air di perairan Buleleng menunjukan kondisi normaldan masih berada pada standar baku yang ditetapkan oleh Keputusan Menteri Lingkungan Hidup No. 51 Tahun 2004, kecuali konsentrasi nutrien.
This study aims to determine the diversity index value, uniformity, and dominance of corals on natural artificial reefs "Bioreeftek" in Kerobokan Village coastal waters, Sawan District, Buleleng Regency, Bali Province. Data collection was carried out on September 2020. Observations with visual census using underwater cameras and SCUBA diving equipment was applied to observe coral recruitment insix artificial reef units. The results showed that there werenine types of biota found on artificial reefs B1-B6 (B = bioreeftek), that werePodobacia sp, Sponge, Atriollum robustum, Favites sp, Gorgonia sp, Porites sp, Diploastrea sp, Coralline algae and Pocillopora damicornis. The highest diversity index found in B3 = 3,4; The highest uniformity index found B3 = 2,48; and the highest dominance index was in B5 = 0,68. Coralline algae and Scleractinian corals (Favites sp)were abundantly found in artificial reefs B1-B6.Water quality condition in Buleleng water generally showed a normal condition for supporting marine lifes, with exception of nutrient
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