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Jurnal Ilmu dan Teknologi Kelautan Tropis
Published by Institut Pertanian Bogor
ISSN : 20879423     EISSN : 2620309X     DOI : https://doi.org/10.29244/jitkt
Core Subject : Science,
Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Library & Information Science
Aims and Scope Journal of Tropical Marine Science and Technology (Jurnal Ilmu dan Teknologi Kelautan Tropis) is a scientific journal in the field of tropical marine science and technology. We have a aims and scope to focus in publishing a good quality scientific articles for dissemination of research results in the field of marine science and technology. Aims As an media of information and dissemination of research results in the field of marine science and technology, especially in the waters of Indonesia and Southeast Asia region, Could actively and continuously disseminate the best research results to various stakeholders, and; This Journal of Tropical Marine Science and Technology can improve the quality of research results and benefit stakeholders. Scope The article, published in this Journal of Tropical Marine Science and Technology covers a wide range of research topics in the field of: marine biology, marine ecology, biological oceanography, chemical oceanography, physical oceanography, dynamical oceanography, coral reef ecology, marine acoustic, marine remote sensing, marine geographical information system, marine microbiology, marine polution, marine aquaculture, post-harvest fisheries technology, integrated coastal management (ICM) marine biotechnology, air-sea interaction, ocean engineering,
Arjuna Subject : Umum - Umum
Articles 658 Documents
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ANALISIS KETERPAPARAN EKOSISTEM TERUMBU KARANG AKIBAT AKTIVITAS PARIWISATA DI PULAU MENJANGAN TAMAN NASIONAL BALI BARAT Mutia Ismi Febrianti; Frida Purwanti; Agus Hartoko
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 10 No. 1 (2018): Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (523.418 KB) | DOI: 10.29244/jitkt.v10i1.19236

Abstract

Pulau Menjangan merupakan bagian dari wilayah Taman Nasional Bali Barat (TNBB), secara fisik termasuk pulau yang unik karena memiliki luas hanya 175 Ha, tidak berpenduduk dan memiliki sebaran terumbu karang yang merata di sekeliling pulau. Aktivitas pariwisata merupakan aktivitas utama yang dilakukan di pulau ini. Terpaparnya ekosistem terumbu karang oleh aktivitas pariwisata secara berlebih tanpa adanya batasan akan mengganggu ekosistem terumbu karang di suatu wilayah. Tujuan penelitian untuk mengetahui beberapa unsur serta nilai terpaparnya ekosistem terumbu karang oleh aktivitas wisata serta unsur alamiah yang menjadi ancaman kerusakan terumbu karang. Penelitian ini difokuskan pada 4 titik lokasi snorkeling menggunakan pendekatan teori kerentanan (vulnerability) dengan parameter keterpaparan yaitu jumlah pengunjung, kepadatan Acanthaster planci, tinggi gelombang, kedalaman, pH, suhu, tipe substrat perairan serta pasang surut. Hasil penelitian menunjukkan bahwa wilayah perairan Pulau Menjangan berpotensi keterpaparan dari berbagai unsur, yaitu unsur alami dan unsur lain seperti aktivitas pariwisata. Nilai keterpaparan yang didapat dari wilayah perairan Pulau Menjangan TNBB adalah 1,5 yang termasuk dalam tingkat keterpaparan rendah.
GROWTH AND PROTEIN CONTENT OF Ulva prolifera MAINTAINED AT DIFFERENT FLOW RATES IN INTEGRATED AQUACULTURE SYSTEM Wastu Ayu Diamahesa; Toshiro Masumoto; Dedi Jusadi; Mia Setiawati
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 9 No. 2 (2017): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (761.96 KB) | DOI: 10.29244/jitkt.v9i2.19257

Abstract

Efforts to reduce the impact of waste improvement on degradation of water quality can be transferred by utilization of inorganic waste as a source of seaweed nutrition. This study aimed to determine the growth and protein content of Ulva prolifera maintained at different flow rates in integrated aquaculture system. 9 Yellowtail stocked with 5.095 g with an average weight of 566.11±81.51 g were kept in 540 L tank for 24 days, by water flowing at the rate of 10 L min-1. Water from the fish tank was distributed into the sediment tank and go to 6 Ulva tanks with the flow rate of 0.5, 1.0 and 1.5 L min-1. Test parameters measured were growth performance of Yellowtail, biomass of Ulva prolifera, protein content of Ulva prolifera, and total ammonia nitrogen. The measurement results showed that the biomass of fish increased to 5.408 g, then biomass of Ulva increased to 42 g, 156 g and 155 g for flow rate of 0.5 L, 1 L and 1.5 L min-1, respectively. The protein content of Ulva for all the treatments was the same (P> 0.05). A total of ammonia in the tank outlet of Ulva (0.0202 - 0.1137 mg N L-1) were smaller than those were in the inlet (0.0286 - 0.1394 mg N L-1).
PERKEMBANGAN AKTIVITAS ENZIM PENCERNAAN LARVA RAJUNGAN Portunus pelagicus Andi Nikhlani; Komsanah Sukarti
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 9 No. 2 (2017): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (379.228 KB) | DOI: 10.29244/jitkt.v9i2.19280

Abstract

Keberlanjutan produksi larva rajungan Portunus pelagicus telah dilakukan, namun sintasan yang diperoleh belum stabil. Aktivitas pencernaan diketahui sangat terkait dengan jenis pakan yang dikonsumsi larva sehingga berdampak terhadap pertumbuhan dan sintasannya. Enzim amilase, lipase, pepsin dan tripsin merupakan indikator biologis yang dapat menunjukkan kesesuaian jenis pakan yang dikonsumsi larva melalui kemampuannya untuk mencerna. Tujuan penelitian ini adalah untuk mengetahui aktivitas enzim pencernaan pada larva rajungan. Data aktivitas enzim pencernaan yang diperoleh disajikan dalam bentuk grafik dan dianalisa secara deskriptif. Berdasarkan hasil penelitian, aktivitas enzim amilase, lipase dan tripsin mulai terdeteksi pada larva umur satu hari. Pola aktifitas enzim amilase menunjukkan peningkatan sejak larva berumur satu hari hingga hari ketujuhbelas kemudian cenderung menurun sampai akhir penelitian. Aktivitas enzim tripsin tinggi pada hari kesatu, tapi cenderung menurun pada hari ketiga dan kelima, dan meningkat lagi pada hari ketujuh sampai hari terakhir penelitian. Aktivitas amilase dan tripsin tertinggi selama periode waktu tersebut terjadi pada larva umur sebelas hari, sedangkan aktivitas enzim lipase cenderung stabil dari awal sampai akhir penelitian. Aplikasi budidaya, pemberian pakan buatan dengan kandungan karbohidrat, protein dan lemak tinggi sebaiknya dilakukan saat larva berumur sebelas hari.
PENGAMATAN AWAL KONSENTRASI SENYAWA POLISIKLIK AROMATIK HIDROKARBON (PAH) DALAM SEDIMEN DI PERAIRAN DELTA MAHAKAM, KALIMANTAN TIMUR Edward, .
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 9 No. 2 (2017): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jitkt.v9i2.19282

Abstract

Polisiklik aromatik hidrokarbon adalah polutan lingkungan yang dijumpai dimana-mana yang dihasilkan terutama selama pembakaran yang tidak sempurna dari bahan-bahan organik. Beberapa PAH bersifat toksik, mutagenik dan atau karsinogenik. Tujuan penelitian ini adalah untuk mengetahui kadar dan jenis senyawa PAH dalam kaitannya dengan perlindungan biota perairan. Penelitian ini dilakukan pada bulan April 2016 di delta Sungai Mahakam. Contoh sedimen diambil dengan menggunakan alat pengambil contoh sedimen (Grab sampler) pada 3 Stasiun penelitian yakni Sungai Purun (St 1), Pulau Tunu (St 2) dan Pulau Segara (St 3). Kadar dan jenis senyawa PAH ditentukan dengan menggunakan Gas Chromatography-Mass Spectrometry (GC-MS). Hasilnya menunjukkan kadar PAH dalam sedimen di ketiga stasiun tersebut relatif rendah dan masih sesuai dengan nilai ambang batas aman untuk kehidupan biota perairan. Jenis PAH di perairan ini didominasi oleh PAH dengan berat molekul rendah. Sumber kontaminan PAH dalam sedimen berasal dari aktivitas perkapalan dan permukiman.
IDENTIFIKASI JENIS PADA KEJADIAN CETACEA TERDAMPAR DI INDONESIA DENGAN TEKNIK MOLEKULER Ni Luh Astria Yusmalinda; Aji Wahyu Anggoro; Dio Maulid Suhendro; I Made Jaya Ratha; Dwi Suprapti; Danielle Kreb; Ni Kadek Dita Cahyani
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 9 No. 2 (2017): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (975.38 KB) | DOI: 10.29244/jitkt.v9i2.19283

Abstract

Kasus Cetacea atau Paus dan Lumba-lumba terdampar di Indonesia sejak berapa tahun terakhir ini semakin sering terungkap dan ditangani oleh banyak pihak. Data dari Whale Stranding Indonesia (WSI) mencatat 40 kasus Cetacea terdampar di berbagai tempat di Indonesia selama tahun 2016 hingga bulan Februari 2017. Salah satu kendala bagi para penyelamat di lapangan adalah sulitnya mengidentifikasi jenis secara morfologi karena pada beberapa kasus, individu yang terdampar tidak dalam kondisi utuh. WSI mencatat lebih dari 21% jenis pada kejadian Cetacea terdampar di Indonesia, tidak teridentifikasi. Penelitian ini bertujuan memperkenalkan pendekatan genetika molekuler dalam mengidentifikasi jenis pada Cetacea terdampar. Gen Control Region dari DNA mitokondria diamplifikasi dengan menggunakan metode Polymerase Chain Reaction (PCR). Data sekuen dibandingkan dengan data di genebank dan dilihat persentase kesamaannya. Penelitian ini menggunakan 36 sampel individu dan 26 diantaranya teramplifikasi dengan panjang basa berkisar antara 445-490 bp (base pair). Metode molekuler berhasil mengidentifikasi 15 spesies dan 13 genus Cetacea yang diambil dari beberapa tempat di Indonesia. Studi ini menunjukkan bahwa teknik genetika molekuler dapat dijadikan metode untuk mengidentifikasi jenis dari Cetacea, terutama mamalia terdampar yang sulit untuk diidentifikasi secara morfologi. Data molekuler yang dihasilkan dapat melengkapi database yang ada di Indonesia serta menjadi penunjang bagi penelitian tentang keragaman genetik dan hubungan antar populasi mamalia akuatik di Indonesia.
SUITABILITY OF LOCATION FOR RESTOCKING CLAMS TRIDACNIDAE IN THE SPERMONDE ARCHIPELAGO . Susiana; Andi Niartiningsih; Muh. Anshar Amran; . Rochmady
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 9 No. 2 (2017): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (617.412 KB) | DOI: 10.29244/jitkt.v9i2.19284

Abstract

Efforts to protect giant clams from extinction one of them through conservation, which set a region as a restocking area. The research aimed to analyze the suitability environments with the density giant clams in the aquatic. The research conducted in September 2013-January 2014. The research site was determined by purposive sampling of middle inner zone = MIZ, middle outer zone = MOZ, and outer zone = OZ in the aquatic of Spermonde Archipelago. The research conducted was using observation method of biology, physics, and chemistry parameters of aquatic at mintakat reef flats, reef slope and reef base. Data analysis of location suitability of restocking giant clams using WSM method (and correlation analysis of giant clams density with water quality, then integrated with ALOS Avnir-2 image. The result research shows the density giant clams influenced by the physical environment parameters, mainly salinity, brightness and depth. The suitability location of restocking giant clams for class Very suitable in P. Langkadea and P. Pala (MOZ), P. Cangke (OZ), P. Tambakulu and P. Kondongbali (OZ) on mintakat reef flats. Class Very suitability on reef slope in P. Kondongbali and P. Kapoposang (OZ). Class accordance with the reef flats, there are P. Podang Podang Lompo (MOZ), P. Sarappo Keke (OZ) and P. Kapoposang (OZ). Class Appropriate to reef slope mintakat in P. Langkadea (MOZ) and P. Sarappo Keke (OZ). Determination of giant clams restocking area in nature needs considers the location suitability, primarily the quality of aquatic physics.  Keywords: conservation, clam, weight sum model, ALOS Avnir-2 image
LAND CHANGES AND MANAGEMENT STRATEGIES OF MANGROVE IN SAWO DISTRICT, NORTH NIAS REGENCY, NORTH SUMATERA PROVINCE Septinus Mendrofa; Rahmat Kurnia; Niken T.M. Pratiwi
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 9 No. 2 (2017): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (591.718 KB) | DOI: 10.29244/jitkt.v9i2.19286

Abstract

One of the resources that has potential to utilization is a mangrove ecosystem. The aim of this study was to analyze the changes in the area of mangroves, analyze the causes of destruction of mangroves, and formulate strategies for sustainability management of mangroves in Sawo District. The changes in the area of mangroves was identified from  imagery and analyzed by ArcGis 10.2.2. The causes of mangrove destruction was analyzed from the data collected from the stakeholders in Sawo District that related to management of mangroves in district level, regency level, and province. The data was analyzed by Analytical Hierarchy Process (AHP) to formulate the strategies for sustainability management of mangroves. The result of landsat imagery showed that, mangrove area has decreased about 17,405 ha within a decade. Mangrove destruction was caused by human activities, such as logging and conversion of mangrove land into agriculture. The main strategy for sustainability management of mangroves was community’s empowerment, then followed by others alternatives. Keywords: AHP, coastal, destruction, ecosystem, landsat
THE BODY OF LOBSTER CATCHES IN PALABUHANRATU THAN THE APPLICABLE REGULATORY Liya Tri Khikmawati; Sulaeman Martasuganda; M. Fedi A. Sondita
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 9 No. 2 (2017): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (959.967 KB) | DOI: 10.29244/jitkt.v9i2.19287

Abstract

Lobster is one of the commodities that Indonesia export fisheries worth selling high. The value of selling lobster is affected by type, size, and condition or completeness of her body. Palabuhanratu is one of the centers of the lobster fishery in the South of West Java. Research on condition of fishing lobster in Palabuhanratu was done in April through November 2016 include the type, gender, number, and size (carapace length and weight) and its relationship with regulatory. Observation and measurement of the collecting is done in the lobster that come for each/sold to the warehouse by fisherman and follows directly the activities of catching lobsters. The data already obtained tabulated and analyzed. The results showed that types of lobsters captured fisherman Palabuhanratu are Panulirus ornatus, Panulirus penicillatus, Panulirus versicolor and Panulirus homarus. The majority of lobsters are caught is a kind of lobster P. homarus and P. ornatus and then followed P. penicillatus and P. versicolor. The number of the male for P. homarus, P. versicolor and P. ornatus more than females while the females of P. penicillatus more than males. The majority of the lobster weights less than 300 grams and carapace length less than 8 cm. The body condition of fishing lobster in Palabuhanratu based on the lobster fishery regulations that exist for all types of lobsters is  a majority yet decent catch. Keywords: type, lobster, Palabuhanratu, size
SELECTION OF KURAU FISHING TECHNOLOGY UNITS Eleutheronema tetradactylum WHICH COMPETITIVE AND SUSTAINABLE Muhammad Natsir Kholis; Ronny I Wahju; . Mustaruddin
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 9 No. 2 (2017): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (829.632 KB) | DOI: 10.29244/jitkt.v9i2.19288

Abstract

Environmentally friendly fishing technology unit is needed in sustainable fisheries management. The purpose of this study was to determine the fishing technology unit of kurau competitive and sustainable. Data collection was carried out from July to September 2016 in the Coastal Pambang of Bengkalis District of Riau Province, by using the survey method. The analytical data method used is scoring the biological, technical and socioeconomic aspects the fishing technology unit of kurau. Results of research show that combined analysis of biological, technical and socioeconomic aspects have the value of the VA fishing line function (2.48) is higher than the other three fishing gear. Thus, the fishing line is a selected fishing technology unit of kurau competitive and sustainable in the Coastal Pambang Bengkalis District. Keywords: competitive,coastal pambang, fishing technology, kurau fish,sustainable fishing
CHARACTERISTICS AND VARIABILITY OF THE FLORES ITF AND ITS COHERENCE WITH THE SOUTH JAVA COASTAL CURRENT Agus S. Atmadipoera; Paradita Hasanah
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 9 No. 2 (2017): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2487.309 KB) | DOI: 10.29244/jitkt.v9i2.19289

Abstract

Characteristics and transport variability of the Indonesian Throughflow (ITF) in the western Flores Sea (FS) and its coherency with the South Java Coastal Current (SJCC) fluctuation are investigated using validated ocean general circulation model output (2008-2014) from the INDESO configuration.  The results show that near-surface circulation in the study area is characterized by two distinct regimes:  strong southwestward ITF flow and quasi-transient anti-cyclonic eddies. Vertical dimension of ITF crossing 7.5°S is about 112 km width, 250 m depth, and high velocity core at thermocline >0.3 m/s.  Transport volume estimates along this latitude is -4.95 Sv (southward).  Bifurcation of ITF flow appears north offshore Lombok Island where -2.92 Sv flowing into Lombok Strait and the rest flowing eastward into FS. Meanwhile, vertical dimension of SJCC crossing 114°E is about 89 km width, 120 m depth, and high velocity core at sub-surface >0.35 m/s. Mean transport of SJCC is +2.65 Sv. Coherency between Flores ITF and SJCC transport variability on intra-seasonal scales is significantly high, e.g., on 30 day period (coher=0.92) and phase-lags of 0.6-day with SJCC leading to Flores ITF. This result confirmed previous studies, related to intrusion of coastally trapped Kelvin waves into Flores Sea via Lombok Strait. Keywords: Indonesian Throughflow, western Flores Sea, South Java Coastal Current

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