Article historyCoastal development in Ambon Bay led to increased sedimentation and pollutant into the waters. It effects on the organism in Ambon Bay, including coral reefs. This study aims to look the condition of coral reef. The study method is Line Intercept Transect (LIT) in eight observation stations, two stations in the inner bay and six stations in the outside bay. The results showed there has been a decline in coral cover in the area that has development activities and high anthropogenic activity like Hative Besar, Poka, Kota Jawa, Halong, and Hunuth station. As for areas that have lesser development activity and anthropogenic activity, the condition of coral cover increased as happened at Lilibooy, Eri, and Batu Capeu stations. Stations that have coral reefs "very good category" is at St. Eri station,"good category" is at St. Lilibooy station, "medium category" is at St. Kota Jawa station and St. Batu Capeu while "bad category" are at St. Hative Besar, St. Poka, St. Halong and St. Hunuth stations. Coral growth at each station is dominated by a non-acropora group. The life forms are massive corals and submassive corals from Porites, Favites, Platygyra, Millepora, Symphyllia, Lobophyllia, Styphora and Pavona genus. Kata kunci: Abstrak Status kondisi Terumbu karang Line Intercept Transect (LIT) Teluk Ambon Meningkatnya pembangunan di kawasan pesisir Teluk Ambon menyebabkan semakin tinggi masukan sedimen dan berbagai polutan ke dalam perairan. Hal tersebut berpengaruh terhadap kehidupan biota yang ada di perairan di Teluk Ambon, termasuk terumbu karang. Penelitian ini bertujuan untuk melihat kondisi terumbu karang di Teluk Ambon yang akan dibandingkan dengan penelitian sebelumnya. Metode yang digunakan adalah Line Intercept Transect (LIT) di delapan stasiun pengamatan,dua stasiun di teluk bagian dalam dan enam stasiun di teluk bagian luar. Hasil penelitian menunjukkan telah terjadi penurunan tutupan karang di wilayah yang aktivitas pembangunan dan antropogeniknya tinggi seperti di stasiun Hative Besar, Poka, Kota Jawa, Halong, dan Hunuth. Sedangkan untuk wilayah yang aktivitas pembangunan dan antropogeniknya rendah kondisi tutupan karang hidup meningkat seperti yang terjadi di St. Lilibooy, Eri, dan Batu Capeu. Kondisi terumbu karang yang termasuk dalam
Around 77% of Indonesian islands is small islands and Indonesia known as mega biodiversity center, but coastal biodiversity of small islands was not well documented. The objective of this study is to assess coastal biodiversity in small islands and its conservation status. The study indicated that small islands provide complex biodiversity ranging from ecosystem to species. Diversity index of mangrove: 1.4-1.8, seagrass: 1.5–1.9, coral: 1.7–2.3. Ecosystem condition in urban small island was poor and in rural small island was healthy. The islands also provide fauna diversity i.e mollusc (110 species), crabs (52 species), and coral fish (261 species). Diversity of mollusc and crabs in rural island was higher than in urban island, χ2 (1) = 1.3, p< 0.001 and χ2 (1) = 4.3, p< 0.002, respectively. Diversity index of coral fish range from 2.14 to 4.27 (mean: 3.4). Most of the biodiversity located outside protected area and main threats were ecosystem degradation, pollution, overexploitation, and sedimentation. In conclusion, small islands are important coastal biodiversity spots, but it faces tremendous threats. The study recommends better management of coastal biodiversity i.e. establishing coastal protected areas in small islands, building marine corridor, and public awareness to ensure biodiversity conservation.
A study on coral reefs status was conducted on the island of Wetar, Leti, and Moa of Southwest Maluku District. Nine stations were assigned as sampling stations to analyze the coral reefs’ condition of these three islands. The Underwater Photo Transect method was applied to analyze the percentage of biotic and abiotic components of coral reef communities with Coral Point Count Excel (CPCe) software, whilst the underwater visual census for reef fish data. Coral reef health indices were determined based on benthic lifeform components and reef fish biomass. Our findings showed that the coral cover in Wetar, Moa, and Letti island consists of 124 species that belong to 44 genera and 15 families of hard coral. The condition of coral reefs was considered at category 3 due to the high percentage of coral cover that range between 20.85 – 71.55 % with an average of 42.87 %. The average biomass of target fish in the waters of Wetar, Letti, Moa, and its surrounding areas was 129.309 g/m2 or 3,694 kg/ha. The Kaiwatu site (BWI03) was recorded to have the highest biomass of 305,487 g/m2 or 8,728 kg/ha and the lowest was the Klis site ((BWI 08) with a value of 1285 g/m2 or 36,70 kg/ha. The coral reef health index values of nine study sites ranged between grade 5 and 10, of which two locations got a score of 10 (very good) categories, five locations got a good category and two locations got a low score. The overall results indicate that the coral reef is in a healthy condition, yet, the use of non-environmental friendly fishing gears partly damages coral reef beds.
Maluku memiliki sumberdaya laut yang sangat besar, baik sumberdaya hayati maupun nir-hayati termasuk potensi wisata bahari yang menjadi prioritas pemerintah untuk dikembangkan. Namun pada kenyataannya, perkembangan wisata bahari di Maluku masih menghadapi berbagai kendala, yaitu menentukan lokasi yang layak untuk dijadikan tujuan wisata. Penelitian ini bermaksud untuk melihat tingkat kesesuaian wisata khususnya wisata snorkling dan selam di perairan Pulau Nusalaut. Pengambilan sampel dilakukan pada tahun 2014 dan 2015 di 6 (enam) lokasi yang berbeda. Pengambilan data karang menggunakan metoda LIT (Line Intecept Trancect) dan dianalisis menggunakan "Life Form Program". Pengamatan ikan karang dilakukan dengan Underwater Visual Census (UVC) dan transek. Parameter lingkungan diambil dengan cara pengukuran langsung dilapangan. Terumbu karang dikategorikan dalam kondisi ”Baik” dan ”Sangat Baik” dengan persentase tutupan karang antara 58,54-77%. Sebanyak 217 jenis karang batu yang termasuk ke dalam 52 genera dari 16 famili menempati rataan terumbu. Keanekaragaman ikan karang berada pada kondisi yang cukup baik dengan indeks keanekaragaman berkisar antara 3,05-4,09. Setidaknya terdapat 2.838 individu ikan karang dari 25 famili dan 170 jenis, terbagi dalam kelompok ikan indikator sebanyak 6%, ikan mayor 67% dan ikan target 27%. Kecerahan perairan berkisar antara 8-12 m dengan kecepatan arus antara 1,6-18,5 m/s. Berdasarkan hasil analisis kesesuaian wisata, seluruh lokasi penelitian dikategorikan “Sangat Sesuai” untuk dijadikan tujuan wisata snorkling maupun selam dengan Indeks Kesesuaian Wisata antara 81,25-95,83%.
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