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The status of the condition of Indonesia's coral reefs is mostly categorized as moderate and damaged. Relatively inexpensive and easy-to-implement rehabilitation methods need to involve the participation of many stakeholders. The method of transplanting coral fragments by hanging (floating) from the surface of the water will be more efficient, especially in their maintenance. This study aims to investigate the most suitable water depth to support the growth and survival of the transplanted coral fragments. A non-factorial Completely Randomized Design (CRD) field experiment with 3 (three) treatments, namely different seedbed depths, 2 m, 4 m, and 6 m respectively. Each treatment was repeated 4 (four) times. The results of analysis of variance showed that the absolute growth rate of coral fragments transplanted by hanging from the surface of the water at different depths (2 m, 4 m, 6 m) showed no significant difference (P-value > 0.05). This shows that the environmental conditions at a depth of 2 m-6 m are relatively the same, so that on average all coral fragments have almost the same growth potential (0.29 cm/month). Meanwhile, the survival rate obtained is also very high (> 90%). These results confirm that the method of transplanting corals by hanging from the sea surface is technically feasible and gives good results. This will help many stakeholders to be involved in optimizing the economic potential value of coral reefs, as well as increasing participation in the conservation and rehabilitation of coral reefs.

Kawasan Konservasi Laut Daerah (KKLD) Gili Sulat–Gili Lawang sudah berjalan 17 (tujuh belas) tahun, namun pengelolaannya masih belum maksimal terutama pada perlindungan ekosistem mangrove yang ada di dalam kawasan konservasi dan kepedulian masyarakat dalam rangka pengelolaan dan pelestarian fungsi sumberdaya ikan dan biota lainnya. Berdasarkan pertimbangan potensi yang ada di Kawasan Konservasi Laut Daerah (KKLD) Gili Sulat – Gili Lawang dan sekitarnya dengan beberapa ekosistem pesisir laut yang ada, kawasan ini memerlukan sebuah strategi pengelolaan secara optimal dengan memperhatikan kaidah-kaidah berkelanjutan dan perlindungan kelestariannya, khususnya terhadap pengelolaan mangrove. Tujuan penelitian (1) Untuk mengetahui jenis mangrove yang ada di sekitar Kawasan Konservasi Laut Daerah (KKLD) Gili Sulat – Gili Lawang. (2) mengetahui persepsi masyrakat terhadap lahan mangrove (3) mengetahui dampak kerusakan lahan mangrove terhadap biota ikan dan non ikan. Disimpulkan persepsi masyarakat terhadap pelestarian dan pemanfaatan lahan mangrove menunjukkan sangat setuju, namun belum sampai ke tahap aplikasi mengingat tingkat kesadaran dan pendidikan masyarakat tentang pemanfaatan dan pelestarian lahan mangrove sangat rendah. Pemerintah (Dinas Kelautan Perikanan dan Dinas Kehutanan), menunjukkan sikap terhadap pelestarian dan pemanfaatan lahan mangrove sangat setuju namun ditingkat aplikasi peran pemerintah belum terlaksana yang disebabkan karena kepentingan ekonomi dan penegakan hukum yang masih begitu lemah. Struktur vegetasi mangrove didominasi oleh jenis Rizhophora mucronata dan Bruguera sexangula dari famili Rhizoporaceae . Stasiun 1 untuk tingkat pohon, pancang dan anakan didominasi oleh Rhizopora mucronata . Stasiun II untuk tingkat pohon, pancang dan anakan didominasi oleh Rhizophora mucronata dan Bruguera gymnoriza . Stasiun III untuk tingkat pohon, pancang dan semai didominasi oleh jenis Rhizophora mucronata dan Avecinea officinalis . Pada stasiun IV untuk tingkat pohon, pancang dan semai didominasi oleh Rhizopora mucronata dan Bruguera stylosa . Untuk keragaman fauna air yang berasosiasi dengan lahan mangrove jenis ikan dan non ikan yang dominan di tangkap adalah famili siganidae dengan sepesies beronang ( siganus sp ).

The aims of the research was to determine the perceptions of stakeholders (Community, Government and Employers), to know the potential of mangrove species and determine the impact of mangrove degradation on fish and non-fish biota, at Labuhan Sangoro coastal village. This study was conducted for three months from April to June 2012. Data were analyzed descriptively using a Likert scale for the perception of stakeholders. Potential mangrove species was examined using transects and to determine the impact of mangrove degradation on species diversity of aquatic fauna associated with mangrove were obtained by observation of nonparticipant method. The results showed that perceptions of stakeholders towards preservation and conservation of mangrove land, the 87% strongly agreed, 66% agreed and 22% disagreed, government and employers 86% strongly agree, 78% agree and disagree 3%, but not yet to the application phase. The potential of mangrove type in the coastal village of Labuan Sangoro at Station 1, 2, 3, and 4 by R. mucronata and R. stylosa, Transect I dominated by Rhizophora mucronata, R. stylosa, R. apiculata, Sonneratia alba, Lumnitzera racemosa and Ceriops tagal, transect II by Avicennia marina, R. mucronata and R. stylosa, Transect III by A. marina and R. mucronata and transect IV by R. mucronata and R. stylosa. Fish eatch on the condition of low and high degradation condition, the dominant fish species caught is Beronang (Siganus sp), non-fish species dominated by Crab (Scylla serrata). The number of catches in the low mangrove land degradation conditions wais 2,609 species of fish and non-fish tail 4678, on the high mangrove degradation conditions, the fish catch was 1,090 and non-fish was 1,114. The diversity, uniformity and the dominance of species, classified in the category of low and moderate levels.