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Analysis of Water Quality for Tourism Suitability at Indonesia’s Front Island: Ganting Beach, Simeuleu Island, Nanggroe Aceh Darussalam
Get PDFIndonesia is an archipelago country with potential marine and coastal. Simeulue Island, NAD is one of the leading island in west of the Republic of Indonesia and located in Hindia Ocean. Simeulue have potential marine waters such as fish, lobster, crab and sea cucumber as well as ecosystems such as coral reefs and mangroves. Simeulue is an area that affected by the tsunami or Smong (in local term means running) at eleven years ago on 26 December 2004. A big change that happen is the accretion on most coasts such as in the area around the northwest to the northeast. This accretion marked by the widening of the coast towards the sea and the lifting of the corals to the surface because ofthe movement of tectonic plate subduction Sunda arc (Natawidjaja, 2007). This study aims to determine the condition of the water quality and the potential suitability of a marine tourism in this region to foreign countries. Location of study at Ganting Beach, Village of Kuala Makmur, Simeulue regency, Simeulue Island. The research was conducted in August 2015. The number of sampling station is 12 points with purposive sampling method. Observation of water quality parameters are pH, temperature,salinity, turbidity, dissolved oxygen, brightness, BOD5, odors, oil and debris. These parameters are then mapped using software ODV, analyzed and compared with the sea water quality standard for marine tourism as well as the characteristics of the coast to the suitability index of recreational area. Water quality parameters showed pH values ranged from 10.05 to 10.25; temperature from 29.80 to 31.90 (° C); salinity from 27.60 to 32.70 (ppt); turbidity from 0.00 to 3.50 (NTU); dissolved oxygen from 7.46 to 8.77 (mg / L); BOD5 from 0.897 to 1.076 (mg/ L); brightness 8.50 to 15.40 (m); no smell; no oil layer; and no debris. The results showed that the water quality P. Ganting is very suitable for recreational activities (index 77, category S1) and it is suitable for swimming and also for boating tourism activities, banana boats and jet skis (index 16, category S2)
ANALYSIS OF CORAL’S COVER AND CORAL’S MORTALITY INDEX AROUND PAGAI STRAIT, MENTAWAI
Get PDFCoral that live in tropical waters that sensitive to environment changes, especially temperature, salinity, sedimentation and eutrophication. Pagai Strait at Mentawai is part of the Indian Ocean which lies between North Pagai and South Pagai Island. Pagai Strait island located in the region which is the path of collision between two plates (Eurasia and Indo-Australia) and high tectonic activities. Some Mentawai Tsunami led severely damaged to most of the Mentawai waters. This study aims to determine of Coral Bleaching phenomenon and the impact of Tsunami, to coral reefs in the Pagai Strait. The method is Line Intercept Transect (LIT) and held in April 2016. The study was conducted on Sijao-jao, Siruso and Tunang Bulag. Observations did on the current, parameters of waters, the percent cover of live coral and dead coral, algae, abiotic and other biota. The result of this research shows that current’s velocity is 0,2 – 0,48 m/sec. Some parameters such as temperature, TDS and salinity out of range of the treshold. pH and visibility are still in the range. Sijao-jao has the percent of coral cover 20,17% (poor) and IM 0,767; Siruso with coral cover 30,45% (moderate) and IM 0,544; while Tunang Bulag has coral cover 25,08% (moderate) and IM 0,451. Acropora sp is the most vulnerable of coral bleaching.
PATHOGENICITY AND IN VIVO STUDY OF LOCAL ISOLATE Bacillus sp. D2.2 AT THE VANNAMEI CULTURE (Litopenaeus vannamei)
Get PDFPenggunaan bakteri biokontrol dapat dijadikan solusi bagi permasalahan pemberantasan penyakit untuk menekan pertumbuhan bakteri pathogen pada budidaya udang vaname (Litopenaeus vannamei). Bacillus sp. D2.2 merupakan isolat bakteri lokal yang terbukti mampu menghambat pertumbuhan Vibrio harveyi secara in vitro. Potensi lain isolat bakteri ini perlu diketahui lebih lanjut melalui penelitian ini. Tujuan penelitian ini adalah untuk mengetahui tingkat patogenisitas bakteri biokontrol Bacillus sp. D2.2 terhadap udang vaname dan kemampuannya dalam menghambat pertumbuhan bakteri patogen Vibrio alginolyticus secara in vivo. Uji patogenisitas Bacillus sp. D2.2 dilakukan dengan metode LD50 pada tingkat kepadatan 103, 104, 105 dan 106 CFU/ml.Hasil LD50 menunjukkan Bacillus sp. D2.2 tidak bersifat patogen karena tidak ada konsentrasi bakteri yang mematikan hingga 50% larva udang vaname. Uji antagonisme Bacillus sp. D2.2 terhadap V.alginolyticus secara in vivo dilakukan pada 2 perlakuan, yaitu pemeliharaan udang vaname tanpa penambahan Bacillus sp. D2.2 dan pemeliharaan udang vaname dengan penambahan Bacillus sp. D2.2. Kedua perlakuan diuji tantang dengan V.alginolyticus 105 cfu/ml dan diulang 3 kali. Hasil penelitian menunjukkan Bacillus sp. D2.2 mampu menurunkan pertumbuhan V.alginolyticus dari 105 CFU/ml sampai 103 CFU/ml. Hal tersebut menjelaskan bahwa Bacillus sp. D2.2 berpotensi sebagai bakteri biokontrol
STUDIES USING RED BRICK TO REDUCE OF IRON (Fe) LEVELS FROM ON DUG WELL WATER IN TRINSING COUNTRY, VILLAGE JINGAH, DISTRICT CENTRAL TEWEH, NORTH BARITO REGENCY.
Get PDFStudi Penggunaan Bata Merah Untuk Menurunkan Kadar Besi ( Fe ) Pada Air Sumur Gali Di Desa Trinsing, Kelurahan Jingah, Kecamatan Teweh Tengah, Kabupaten Barito Utara. Tesis Magister Pengelolaan Sumberdaya Alam dan Lingkungan, Program Pascasarjana Universitas Palangka Raya, 2011. Dibawah bimbingan Salampak dan Ciptadi. Sumber air baku utama penduduk Desa Trinsing Kelurahan Jingah Kecamatan Teweh Tengah Kabupaten Barito Utara berasal dari sumur gali, diduga mengandung kadar besi (Fe). Kandungan besi (Fe) ini dapat mengganggu kesehatan manusia. Untuk mengurangi kandungan besi (Fe) tersebut salah satunya dapat digunakan bata merah. Berdasarkan uraian tersebut dapat dirumuskan masalah, apakah bata merah dapat menurunkan kadar besi (Fe) pada air sumur gali didaerah Desa Trinsing Kelurahan Jingah Kecamatan Teweh Tengah Kabupaten Barito Utara. Penelitian ini bertujuan untuk mengetahui penggunaan bata merah pada kapasitas 10 mg/l untuk menurunkan kadar besi (Fe) air sumur gali. Data hasil pengukuran laboratorium dilakukan analisis dengan uji t pada taraf α = 5%. Hasil dalam penelitian ini bahwa dengan penambahan serbuk bata merah dosis 10 mg/l pada sampel air sumur gali dapat memiliki kemampuan menurunkan kadar besi pada ASG tersebut sebesar 85%. Menunjukkan bahwa perlakuan penambahan serbuk bata merah sebesar 10 mg/l pada air sumur gali (ASG) berpengaruh sangat nyata atau thit > ttabel sehingga H0 ditolak dan H1 diterima.
The Effect of Sex Reversal Using 17α-Methyltestosterone Hormones Towards The Colour Intensity of Male XX And Female XYFighting Fish (Betta Sp.)
No full textFighting fish (Betta sp.) is endemic fresh water fish of Southeast Asia that has become one of Indonesias export commodities. Male fighting fish has brighter colour then the female. Mono-sexual male fighting fish population can be obtained through sex reversal method (female to male). However, male fighting fish suspected sex reversal results will likely have a low color intensity. This study aims to determine the effect of sex reversal using 17α-methyltestosterone hormone toward colour intensity of male fighting fish with XX genotype as the results of sex reversal and the original male fighting fish XY genotype. The research design consisted of 2 treatments with 3 replications. The determination of the observations grade toward the colour intensity of fighting fish is done by comparing the original colour of the fish using coloured paper Modified Toka Colour Finder (M-TCF) which were observed by 5 observers for the accuracy of the data. The results showed that there is significant effect of sex reversal using 17α-methyltestosterone hormone toward the colour intensity of the male fighting fish XX to XY males. On the whole, the mean observed colour intensity for P1 (with sex reversal) is 18.33 and P2 (without sex reversal) is 28.33, it shows that the P1 has lower brightness than P2
CORAL REEF CONDITION BASED ON LEVEL OF SEDIMENTATION IN KENDARI BAY
Get PDFKemampuan karang untuk tumbuh dan berkembang sangat dipengaruhi oleh tingkat sedimentasi. Penelitian ini bertujuan mengetahui kondisi terumbu karang berdasarkan tingkat sedimentasi. Metode yang digunakan dalam pengambilan data kondisi terumbu karang menggunakan metode quadrat photo transect dan pengukuran laju sedimentasi di ekosistem terumbu karang dilakukan dengan menggunakan alat sediment trap. Hasil penelitian menunjukkan bahwa Kondisi terumbu karang di perairan Teluk Kendari saat ini termasuk kategori buruk dengan persentase tutupan karang hidup pada tingkat sedimentasi tinggi sebesar 36,12, sedimentasi sedang sebesar 8,46 dan sedimentasi rendah sebesar 1,29. Kesimpulannya adalah kondisi terumbu karang di perairan Teluk Kendari saat ini termasuk kategori buruk
Diversity and Condition Analysis of Coral Reef in Lahu Besar Island, Ringgung, Pesawaran District
Get PDFThe aims of this study is to determine the diversity and condition of coral reef ecosystems in the island of Lahu Besar, Ringgung. Some parameters were observed are percent cover and condition of coral reefs, composition and density of coral species, and water quality include salinity, temperature, clarity, waters current, pH, and sedimentation. The surface temperature at the time of observation average of 30-31 oC and salinity of sea water an average of 32 - 34 o/oo. The clarity in the study area is 5 meters. Distribution of reefs founded in the Lahu Besar bay to ± 10 m in depth. The substrate dominated by sand and dead coral. The Percent cover of live coral is about 10.5 to 52.9%. The other form of covered substrate consist of Enhalus acoides, Sargassum echinocarpum andHalimeda micronesica. The results showed that the density of the dominant species of coral stones at each station is about 0.1 to0.63 ind / m. The coral reef was dominated in Station I was kind of Acropora nobilis, Station II is Montipora florida, and Station III is Acropora nobilis and Acropora formosa. Diversity index values obtained at each station is about 0.80 to 1.68
FISH COMMUNITY IN SEAGRASS HABITAT AROUND SAWAPUDO WATERS, KONAWE DISTRICT, SOUTH-EAST SULAWESI
Get PDFPerairan Desa Sawapudo memiliki topografi pantai yang landai dengan dasar perairan yang potensial untuk lamun tumbuh dan berkembang secara luas. Tujuan penelitian untuk mengetahui komunitas ikan di lamun perairan Desa Sawapudo. Hasil penelitian dapat bermanfaat sebagai informasi penting dalam pengelolaan dan pemanfaatan ekosistem padang lamun. Penelitian dilaksanakan bulan Mei-Juli 2016 di perairan Desa Sawapudo Kecamatan Soropia menggunakan alat tangkap jaring. Pengambilan sampel ikan dilakukan sebanyak tiga kali dengan interval waktu 30 hari. Hasil yang diperoleh selama penelitian yaitu ikan yang tertangkap berjumlah 136 individu dimana terdapat 12 spesies. Jumlah kelimpahan ikan tertinggi ditemukan pada jenis ikan Geres oyena sebesar 0,53 ind/m2 dan terendah pada ikan Cheilio inermis yakni sebesar 0,07 ind/m2. Keanekaragaman jenis ikan dikategorikan tergolong sedang. Keseragaman ikan memiliki kemerataan jumlah individu untuk setiap jenis. Sementara dominansi ikan termasuk kategori rendah, dimana tidak terdapat spesies yang mendominansi spesies lainnya
THE STUDY OF BIOFLOC EFFECTIVENESS AS FEED ON TILAPIA (Oreochromis niloticus) AND SANGKURIANG CATFISH (Clarias gariepinus)
Get PDFBiofloc system is a technology in aquaculture which utilized waste mainly in form of anorganic nitrogen. The anorganic nitrogen will be converted into protein in the form of bacterial biomass by heterotrophic bacteria. The growth of heterotrophic bacteria is stimulated by the addition of a carbon source. This research aimed were to study the absolute growth, daily growth rate, specific growth rate and survival rate of tilapia and sangkuriang catfish which fed on biofloc. The research used Completely Randomized Design (CRD) which consisted of two treatments and four replication. The study lasted for 40 days, with the frequency of feeding biofloc was three times a day ie morning, afternoon and evening. Growth sampling was done every 10 days, observation of water quality every 8 days, and ammonia test was done at the beginning, middle and end of research. The results showed that tilapia which fed on biofloc have absolute growth, daily growth rate, specific growth rate, and survival rate better than those of sangkuriang catfish
Performance of Green Mussel (Perna viridis) in Monoculture and Polyculture System Within Sea Bass (Lates calcarifer )
Get PDFGreen mussel (Perna viridis) is oyster has high potential to be developed. A huge market demand is an important factor to optimized green mussel cultivation, there are to system that could be applied for cultivation green mussel is polyculture and monoculture. The purposed of this study is to determined growth performance of green mussel which culture in monoculture and polyculture system. Green mussel is culture in floating cage bath of monoculture and polyculture system. In polyculture system green mussel placed within seabass (Lates calcarifer). Growth performance of green mussel determined by comparizing growth in wide and body lenght using T-test to analyzed factor that assigned to growth performance used principle component analysis (PCA) to environment factor such as Total Amonia Nitrogen (TAN), Total Organic Matters (TOM), Total Suspended Solid (TSS) and phytoplankton both in polycultured and monocultured system. The result of this research was shown that growth in this significant shown from third place where sample collected at 0-100 in depth The results showed that this significant growth was shown from the third place where the samples were collected at 0-100 in depth and the second place where the samples were collected at 100-150 in depth. This is caused by availability of feed source such as TOM and phytoplankton thy driven by sea current. The significant value shown by growth in wide of mussel shell at 100-150 cm in depth