Study On Artificial Reef Made of Bamboo “Bambooreef†In Malalayang Dua Waters, Malalayang District, Manado
DOI:
https://doi.org/10.35800/jip.5.1.2017.14967Abstract
Building and placing artificial reef “Bambooreef†around the natural coral reef in Malalayang Dua is a modified concept to innovate the commonly present reef model and create a new alternative model. The technical approach on consideration was type/structure of raw material, difficulty of finding the raw material, artificial reef model formation. Results showed that Bambooreef could be used as growing site of coral transplants and other epiphytic organisms, such as algae, mollusk, and etc. The occurrence of demersal reef fishes around the “Bambooreef†reflected that the artificial reef was good enough to develop for coral rehabilitation program in the degraded areas. And as fish house. Based on the age of bambooreef placed for 8 months on the sea bottom, it was found that this material could stand long enough on the sea bottom. Further studies are needed in relation with the use of bambooreef as fish house to support the fisheries sustainability, particularly demersal reef fisheries, and as fish stock supplying ground to the surrounding waters.
Keywords: Artificial reef, bambooreef, bamboo, demersal.
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Abstrak
Pembuatan dan peletakan terumbu buatan dari bahan bambu “Bambooreef†di daerah sekitar terumbu karang perairan Malalayang Dua merupakan konsep modifikasi yang diterapkan untuk melakukan inovasi terhadap model terumbu karang yang sudah pernah ada dan menghasilkan model alternative baru. Pendekatan teknis yang akan dijadikan pertimbangan seperti; jenis/struktur bahan baku, tingkat kesulitan mendapatkan bahan baku, formasi modul terumbu buatan. Hasil menunjukkan bahwa penempatan Terumbu buatan “Bambooreef†di perairan Malalayang Dua dapat dijadikan tempat bertumbuhnya jenis-jenis transplan karang dan organisme penempel lainnya seperti jenis Alga dan moluska, dll. Kehadiran jenis–jenis ikan demersal karang sekitar “Bambooreef†menunjukkan bahwa terumbu buatan tersebut cukup baik untuk dikembangkan dalam rangka rehabilitasi karang di daerah yang telah mengalami degradasi, dan menjadi rumah ikan. Berdasarkan umur terumbu buatan dari bahan bambu yang diletakkan di dasar perairan 8 bulan, maka ditemukan bahwa bahan bambu tersebut akan dapat bertahan cukup lama di dasar perairan. Penelitian lanjutan mengenai bambooreef perlu dilakukan untuk memanfaatkan terumbu buatan dari bahan bambu sebagai rumah ikan dalam rangka menunjang kegiatan keberlajutan perikanan khususnya perikanan demersal karang, dan sebagai daerah penyedia stok ikan bagi perairan sekitarnya.
Kata kunci: Terumbu buatan, bambooreef, bambu, demersal.
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