The coastal areas in Sayafi and Liwo islands have the potential of natural resources that are classified as still quite high. The potential of natural resources owned by the two islands reflected on coral reefs, reef fish, ornamental fish, seagrass beds and fisheries. In addition to ecological function, this ecosystem also have a high aesthetic value to the development of marine tourism. The purpose of this study is to determine the suitability index and carrying capacity of the marine ecotourism for the type of diving and snorkeling activities that can be developed on the island Sayafi and Liwo Patani subdistrict of North Central Halmahera in North Maluku province. The results showed that the suitability index of marine ecotourism Sayafi and Liwo islands are in the appropriate category and very appropriate category with the capacity for this type of diving tourism activities 260 people/day in the area of the utilization is equal to 18.07 ha, and for snorkel tour with the utilization is equal to 16.01 ha area, tourists can accommodate as many as 231 people/ day. So, the total tourists who can fit both types of tourist activities is equal to 491 people/day. Keyword: carrying capacity, marine ecotourism, natural resource, small island ABSTRAK Kawasan pesisir pulau Sayafi dan Liwo memiliki potensi sumberdaya alam hayati yang tergolong masih cukup tinggi. Potensi sumberdaya alam yang dimiliki kedua pulau ini dapat dilihat pada ekosistem terumbu karang, ikan karang, ikan hias, padang lamun dan perikanan. Selain memiliki fungsi ekologis, ekosistem ini juga memiliki nilai estetika yang tinggi untuk pengembangan wisata bahari (marine tourism). Tujuan dari penelitian ini adalah menentukan kelas kesesuaian dan daya dukung ekowisata bahari untuk jenis kegiatan diving dan snorkeling yang dapat di manfaatkan di pulau Sayafi dan Liwo Kecamatan Patani Utara Kabupaten Halmahera Tengah Provinsi Maluku Utara. Hasil penelitian menunjukkan bahwa kelas kesesuaian ekowisata bahari pulau Sayafi dan Liwo berada dalam kategori sesuai dan sangat sesuai, dengan daya tampung untuk jenis kegiatan wisata diving sebanyak 260 orang/hari dengan area pemanfaatan sebesar 18.07 ha, dan untuk wisata snorkeling dengan area pemanfaatan sebesar 16.01 ha, mampu menampung wisatawan sebanyak 231 orang/hari. Dengan demikian total wisatawan yang dapat ditampung kedua jenis kegiatan wisata sebesar 491 orang/ hari. Kata kunci: daya dukung, ekowisata bahari, pulau kecil, sumberdaya alam
Ekosistem terumbu karang merupakan salah satu sumberdaya potensial wilayah pesisir dan pulau-pulau kecil yang memiliki nilai ekonomi dan ekologi. Pemanfaatan ekosistem terumbu karang untuk suatu kawasan wisata tanpa mempertimbangkan kapasitas daya dukung lingkungan dapat mendorong penurunan fungsi terumbu karang secara kompleks. Tujuan penelitian ini adalah mengetahui persentase tutupan terumbu karang yang ada di Pulau Dodola, mengetahui indeks kesesuaian wisata dan daya dukung kawasan di Pulau Dodola untuk kegiatan wisata bahari kategori wisata diving. Penelitian ini dilakukan pada bulan Agustus 2017 sampai bulan Januari 2018. Metode yang digunakan yaitu: Line Intercept Transect (LIT) dan Underwater Visual Census (UVC). Sedangkan kesesuaian dan daya dukung kawasan (DDK) diketahui dengan menggunakan analisis kesesuaian dan daya dukung kawasan. Hasil penelitian menunjukan, persentase nilai tutupan karang hidup Pulau Dodola berada pada kategori sangat baik dengan persentase nilai rata-rata tutupan karang hidup dari ketiga stasiun pengamatan sebesar 85%. Indeks kesesuaian wisata (IKW) untuk jenis wisata diving Pulau Dodola berada pada kategori kelas S1 dan S2. Kategori kelas S1 terdapat pada stasiun II dengan persentase nilai IKW sebesar 83.3% sementara kategori kelas S2 (sesuai) terdapat pada stasiun I dan III dengan persentase nilai IKW hanya mencapai 70.4% dan 81.5%. Daya dukung kawasan (DDK) Pulau Dodola untuk jenis wisata diving memiliki kapasitas daya tampung pengunjung sebesar 153 orang per hari.
Coastal ecosystems are dynamic ecosystems that have a rich diversity of habitats on land and in the ocean, as well interacting between one habitat with another. The purpose of this study is to identify the ecological parameters of the coastal ecosystem a marine ecotourism area and determine the suitability class of the Kokoya Island coast as a marine ecotourism area for the coastal tourism category. This research was conducted in January to February 2019. Data collection using primary data with survey methods and direct measurements in the field. The analysis is used to analyze the suitability of the beach ecosystem class on Kokoya Island by using the area suitability matrix for the recreation category of beach tourism. The results showed that at 7 stations in the study location had a Travel Conformance Index in the category of Very Appropriate (S1) and Appropriate (S2). The IKW of each station can be presented; Station 1 IKW. 92.31% (S1), Station 2 IKW. 89.74% (S1), Station 3 IKW. 89.74% (S1), Station 4 IKW. 97.44% (S1), Station 5 IKW. 78.21% (S2), Station 6 IKW. 90.38% (S1), and Station 7 IKW. 97.44% (S1).
Enhalus acoroides is a type of seagrass found in the waters surrounding the Morotai Islands but has not been economically exploited. Enhalus acoroides can be used to treat ulcers, acne medications, and cosmetics, among other things, due to their antibacterial activity against a variety of bacteria, one of which is Staphylococcus aureus. Staphylococcus aureus can cause respiratory and gastrointestinal tract infections. Staphylococcus aureus can infect any tissue in the body, causing damage to skin tissue. This study aimed to determine the antibacterial activity of E. acoroides against S. aureus and characterize the group of bioactive compounds found in the E. acoroides extract. This study took place between September and October of 2018. Enhalus acoroides samples were collected from the waters surrounding Morotai island. Extraction of E. acoroides in maceration using methanol and n-hexane solvents and qualitative identification of bioactive compounds including alkaloid compounds, flavonoids, steroids, and saponins. The results indicated that the yield of E. acoroidesn-hexane extract was 0.35 percent and Methanol extract was 5.91 percent. Methanol extract E. acoroides (5.9 mm in diameter)1000 ppm is more antibacterial than n-hexane extract E. acoroides (5.6 mm in diameter). The Methanol extract of E. acoroides contains alkaloids, flavonoids, saponins, and steroids, whereas the n-hexane extract of E. acoroides contains steroids and flavonoids.
The coral reef is one of the invertebrate animals that inhabit the marine ecosystem with various aquatic biota. Physical environmental factors including sedimentation, strongly influence coral growth. This study aimed to analyze the percentage of coral cover and the sediment rates in the reclamation area of Daruba City, Morotai Island Regency. This research was carried out in November 2019 using the LIT method to calculate the percentage of coral cover and sediment trap to retrieve sedimentation data. The sediment trap was placed in the bottom waters for 14 days. Stratified filtering was used to separate the sediment, and analytical scales were used to measure dry sediment weight in grams. Sediment sample testing was conducted in the laboratory of the Faculty of Fisheries and Marine Sciences, Khairun University, Ternate. Measurement data were analyzed to calculate the percentage of coral cover and sediment rate analysis. The analysis showed that the percentage of live coral cover was in the range of 10.8 - 20.52%, this value indicates the condition of coral reefs in the waters of the village of Daruba and the waters of the reclaimed development area of the city of Daruba were in the poor category. Sedimentation rate in the reclamation area of the city of Daruba were 307,34 - 492,27 (g /cm2 /day).Keywords: Cover the reef, The rate of sediment, Morotai ABSTRAKTerumbu karang merupakan salah satu hewan avertebrata yang mendiami ekosistem dengan berbagai biota perairan. Pertumbuhan karang sangat dipengaruhi oleh faktor fisik lingkungan, salah satunya adalah sedimen. Tujuan penelitian ini yaitu menganalisis persentase tutupan karang dan menganalisis laju sedimen di area reklamasi kota Daruba Kabupaten Pulau Morotai. Penelitian ini dilakukan pada bulan November 2019 dengan menggunakan metode (LIT) untuk menghitung persentase tutupan karang dan pengambilan data sedimen menggunakan alat sediment trap yang ditempatkan di dasar perairan selama 14 hari. Selanjutnya dilakukan penyaringan bertingkat dan pengukuran berat kering sedimen dalam satuan gram dengan timbangan analitik. Pengujian sampel sedimen dilakukan di laboratorium Fakultas Perikanan dan Ilmu Kelautan Universitas Khairun Ternate. Data pengukuran dianalisis untuk menghitung persentase tutupan karang, dan analisis laju sedimen. Hasil analisis menunjukan persentase tutupan karang hidup berada pada kisaran 10,8 - 20,52%, nilai tersebut menunjukan kondisi terumbu karang di perairan desa Daruba dan area perairan pembangunan reklamasi kota Daruba termasuk dalam kategori buruk. Laju sedimentasi di perairan area reklamasi kota Daruba sebesar 307,34 - 492,27 (g/cm2/hari).Kata kunci: Tutupan karang, Laju sedimen, Morotai
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