Jurnal Ilmu dan Teknologi Kelautan Tropis
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,
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<![CDATA[ASPEK BIOLOGI HASIL TANGKAPAN PANCING ULUR PADA RUMPON PORTABLE ]]>
<![CDATA[Mulyono S Baskoro]]>;
<![CDATA[Roza Yusfiandayani]]>;
<![CDATA[Sutia Yuningsih]]>
<![CDATA[ Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 11 No. 2 (2019): Jurnal Ilmu dan Teknologi Kelautan Tropis ]]>
Publisher : <![CDATA[Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University ]]>
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DOI: 10.29244/jitkt.v11i2.19577
<![CDATA[Rumpon portable merupakan rumpon yang tidak diletakkan secara tetap di perairan, tetapi diletakkan pada saat akan melakukan kegiatan penangkapan ikan. Tujuan dari penelitian ini adalah mengidentifikasi tingkat kematangan gonad, menganalisis hubungan isi perut hasil tangkapan dengan kelimpahan plankton yang tertarik pada rumpon portable, menganalisis indeks keanekaragaman, keseragaman, dan dominan plankton yang terdapat pada isi perut ikan dengan plankton yang terdapat pada perairan, menganalisis trofik level jenis ikan di sekitar rumpon portable. Metode penelitian dilakukan dengan cara experimental fishing dan uji laboratorium. Analisis data yang digunakan dalam penelitian ini yaitu analisis tingkat kematangan gonad, stomach content analysis, indeks keanekaragaman, indeks keseragaman dan indeks dominansi, serta analisis trofik level. Total hasil tangkapan ikan sebanyak 165 ekor didominasi oleh jenis ikan kembung dan ikan tongkol. Ikan-ikan lainnya yang tertangkap yaitu jenis ikan todak, barakuda dan selar kuning. Hasil analisis menunjukkan bahwa hasil tangkapan didominasi oleh ikan dengan TKG II sebanyak 53%, dan disusul ikan dengan TKG I sebanyak 38% dari total hasil tangkapan. Ikan-ikan yang tertangkap pada penelitian ini terdiri dari ikan pemakan plankton atau plankton feeders dan ikan karnivora. Organisme yang ditemukan dalam isi perut ikan yaitu ikan kecil, cumi-cumi, fitoplankton yang terdiri dari 7 genus, serta beberapa genus dari zooplankton. Hasil tangkapan ikan terbanyak ditangkap pada pengamatan hari ke-2 dengan jumlah tangkapan sebanyak 34 ekor.]]>
<![CDATA[DIVERSITAS EKHINODERMATA (ASTEROIDEA, ECHINOIDEA DAN HOLOTHUROIDEA) DI PERAIRAN PULAU OSI, SERAM BARAT-MALUKU TENGAH ]]>
<![CDATA[Eddy Yusron]]>;
<![CDATA[Edward]]>
<![CDATA[ Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 11 No. 2 (2019): Jurnal Ilmu dan Teknologi Kelautan Tropis ]]>
Publisher : <![CDATA[Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University ]]>
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DOI: 10.29244/jitkt.v11i2.20109
<![CDATA[Study of diversity Echinoderms (Asteroidea, Echinoidea and Holothuroidea) at the beach area of Osi Island, Central Maluku. Observation on echinoderms diversity was carried out at the coastal areas in July 2012. The purpose of this study is to get information about the cummunity structure of the echinoderm in the Osi Islands coastal areas, Maluku Tengah. Sampling was conducted by using quadrate transect of 1 m x 1 m. The results of this study showed that there were 16 species of echinoderms, belongs to four species of Asteroidea, five species of Echinoidea and seven species of Holothuroidea. The Holothuroidea were commonly found in the seagrass zone. Based on the data from the three sampling tations, Holothuroidea has the highest density among the other observed biota. The quantitative analysis revealed that the highest diversity and evenness indexes of faunal assemblage was found at tation two (H = 1.117; J = 0.974), while the highest species richness was represented by the Echinoderms from tation one (D = 0.079). Generally, all biota found in this study (14 species) prefer seagrass as microhabitat, nine species occupy sandy areas and eight species inhabit seaweed.]]>
<![CDATA[ISOLASI DAN PENAPISAN BAKTERI PENGHASIL ENZIM PROTEASE, SELULASE, DAN AMILASE DARI SEDIMEN DAN SALURAN PENCERNAAN TERIPANG HITAM Holothuria atra ]]>
<![CDATA[Dien Arista Anggorowati]]>;
<![CDATA[Hendra Munandar]]>;
<![CDATA[Lisa Fajar Indriana]]>
<![CDATA[ Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 11 No. 2 (2019): Jurnal Ilmu dan Teknologi Kelautan Tropis ]]>
Publisher : <![CDATA[Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University ]]>
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DOI: 10.29244/jitkt.v11i2.21353
<![CDATA[Sea cucumber Holothuria atra has potential value as raw material for pharmacy industry that has been cultivated in Research Development Division for Marine Bio Industry – Indonesian Institute of Sciences (LIPI) since 2016. Disease infections and decreased survival rate are one of the obstacles in in this type of sea cucumber cultivation activities especially during broodstock management. One effort to overcome this is the use of probiotic bacteria. This research aims to isolate and select bacteria that produce protease, cellulase, and amylase enzymes as candidates for probiotic bacteria in the sediment and digestive tract of sea cucumber H. atra. The growth of bacteria from sediments and digestive tract on selective media which added cellulose, starch, and casein substrates was carried out to see the potential of bacteria capable of producing cellulase, amylase, and protease enzymes through the hydrolysis process. The two bacterial isolates that had the highest cellulase and amylase enzyme activity were obtained, namely SSe9 isolates with Hydrolysis Capacity 7 mm index and SAm6 isolates with hydrolysis index Capacity 6.6 mm. These results indicate that the two bacterial isolates have the potential to be further developed into probiotic bacteria.]]>
<![CDATA[UJI AKURASI PEMBACAAN MOTIWALI TERHADAP JARAK TRANSDUSER DENGAN DENSITAS PERMUKAAN MEDIUM YANG BERBEDA ]]>
<![CDATA[Jefry Bemba]]>;
<![CDATA[Nurhalis Wahidin]]>
<![CDATA[ Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 11 No. 2 (2019): Jurnal Ilmu dan Teknologi Kelautan Tropis ]]>
Publisher : <![CDATA[Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University ]]>
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DOI: 10.29244/jitkt.v11i2.21662
<![CDATA[MOTIWALI is a tidal measuring instrument that uses sound wave. This study aims to identify the limiting factor and accuracy of MOTIWALI to measuring transducer with the surface medium. The sound propagation was affected by temperature and medium density condition as the reflected plane. Reading test were conducted with three different medium density groups (salt water, fresh water, estuary) as well as transducer high treatment (5 treatments). Suitability of distance reading by the tranducer and recording interval was analyzed using ANOVA dan principle component analysis (PCA). The result showed that instrument did not give the difference of distance reading to the surface of medium, but different densities to data recording intervals with the time set in confiq.sys. MOTIWALI effective work at a distance of 150cm from the medium surface and fixing the recording time was added for 1 minute.]]>
<![CDATA[ASOSIASI IKAN KARANG PADA ATRAKTOR CUMI-CUMI BERBAHAN PIPA PVC ]]>
<![CDATA[Danu Sudrajat]]>;
<![CDATA[Mulyono S. Baskoro]]>;
<![CDATA[Zulkarnain]]>;
<![CDATA[Roza Yusfiandayani]]>
<![CDATA[ Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 11 No. 2 (2019): Jurnal Ilmu dan Teknologi Kelautan Tropis ]]>
Publisher : <![CDATA[Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University ]]>
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DOI: 10.29244/jitkt.v11i2.21738
<![CDATA[Atraktor cumi-cumi berbahan pipa PVC terbukti sangat efektif sebagai sarana menempelnya telur cumi-cumi, dan sebagai artificial reef yang menjadi daerah baru bagi tempat ikan, karang lunak dan makroalga sehingga menjadi suatu ekosistem baru di suatu perairan. Tujuan penelitian ini adalah untuk mengetahui jumlah ikan yang berasosiasi dengan atraktor cumi-cumi serta mengetahui tipe atraktor yang memiliki kinerja yang paling baik. Penelitian ini menggunakan 2 buah tipe atraktor yaitu Tipe 1 (T1), dan Tipe 2 (T2). Metode pengumpulan data ikan yang berasosiasi dengan atraktor cumi-cumi menggunakan metode sensus dengan menggunakan televisi sirkuit tertutup (CCTV) bawah air “SENU”. Individu yang diamati adalah yang berada di dalam dan di sekitar atraktor cumi-cumi dalam setiap jamnya, dengan jarak terluar yang diamati dari atraktor cumi-cumi sekitar 50 cm. Rata-rata ikan yang berasosiasi setiap jamnya dengan atraktor cumi-cumi T1 sebanyak 298 individu dan atraktor cumi-cumi T2 sebanyak 281 individu dari 67 spesies dari 25 Famili. Kelompok ikan target (target species) yang memiliki nilai persentase terbesar yang berasosiasi dengan atraktor cumi-cumi, dan kelompok ikan indikator (incdicator species) memiliki nilai persentase yang cukup besar pada atraktor T1 dibandingkan dengan atraktor T2.]]>
<![CDATA[POLA SPASIAL DAN TEMPORAL DAERAH PENANGKAPAN IKAN PELAGIS MENGGUNAKAN DATA OSEANOGRAFI DI PERAIRAN SUMATERA BARAT ]]>
<![CDATA[Mutiara Alkayakni Harahap]]>;
<![CDATA[Vincentius Paulus Siregar]]>;
<![CDATA[Syamsul Bahri Agus]]>
<![CDATA[ Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 11 No. 2 (2019): Jurnal Ilmu dan Teknologi Kelautan Tropis ]]>
Publisher : <![CDATA[Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University ]]>
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DOI: 10.29244/jitkt.v11i2.22590
<![CDATA[The West Sumatera waters is one of the waters that has a huge potential for fish resources. Many fishing activities carried out near the coast, and fishing gear used in West Sumatra waters is a Bagan. This study aims to determine the relationships between sea surface temperature and Chl-a concentration with pelagic fish catches in West Sumatera waters. The data used were SST and Chl-a in the periode of 2014 – 2016. The variability of SST and Chl-a data was analyzed using Empirical Orthogonal Function (EOF) method. This study shows that the EOF SPL mode indicates that the overall value of SPL range is above the average (positive anomaly) with a total variance of 81.24%, while the Chl-a shows that the overall value of variability is at an average (negative anomaly) variance of 70.23%. The results of cross-correlation between SPL and pelagic fish have a lag time of 2.2 months, meaning that pelagic fish predates SST and predominantly occurs in a 6-month period. The relationship between Chl-a and pelagic fish was dominant in the 0.5 year period which showed a gap between Chl-a and pelagic fish catches with a lag time of 22 days.]]>
<![CDATA[SUHU TERBAIK UNTUK MENINGKATKAN PERTUMBUHAN DAN KELANGSUNGAN HIDUP BENIH KEPITING BAKAU Scylla serrata DI SISTEM RESIRKULASI ]]>
<![CDATA[Yuni Puji Hastuti]]>;
<![CDATA[Ridwan Affandi]]>;
<![CDATA[Radhita Millaty]]>;
<![CDATA[Wildan Nurussalam]]>;
<![CDATA[Siska Tridesianti]]>
<![CDATA[ Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 11 No. 2 (2019): Jurnal Ilmu dan Teknologi Kelautan Tropis ]]>
Publisher : <![CDATA[Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University ]]>
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DOI: 10.29244/jitkt.v11i2.22727
<![CDATA[One of the abiotic factors that affects the growth and the survival of mud crabs is temperature. The optimum temperature media will result in increasing of growth rate and survival rate on mud crabs Scylla serrata because it is related to the metabolism process. This study aimed to examine the effect of temperature on the survival rate (SR) and spesific growth rate (SGR) of mud crab through the reaction of physiological condition. This study consisted of the treatments with the temperature of 25 °C (A), the temperature of 27 °C (B), the temperature of 29 °C (C), dan the temperature of 31 °C (D). Based on the research result obtained 29 °C is the best temperature for the maintenance of mud crab with recirculation system, this can be seen from the result of feed conversion ratio, specific growth and survival of mud crab that have the best than other treatments.]]>
<![CDATA[PERUBAHAN KIMIA, MIKROBIOLOGIS DAN KARAKTERISTIK GEN HDC PENGKODE HISTIDIN DEKARBOKSILASE PADA IKAN TONGKOL ABU-ABU Thunnus tonggol SELAMA PENYIMPANAN SUHU DINGIN ]]>
<![CDATA[Mala Nurilmala]]>;
<![CDATA[Asadatun Abdullah]]>;
<![CDATA[Vicentius Marco Matutina]]>;
<![CDATA[Nurjanah]]>;
<![CDATA[Roza Yusfiandayani]]>;
<![CDATA[M. Fedi A. Sondita]]>;
<![CDATA[Hanifah Husein Hizbullah]]>
<![CDATA[ Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 11 No. 2 (2019): Jurnal Ilmu dan Teknologi Kelautan Tropis ]]>
Publisher : <![CDATA[Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University ]]>
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DOI: 10.29244/jitkt.v11i2.23007
<![CDATA[Histamin merupakan senyawa amin biologis yang dapat terbentuk dari histidin bebas dalam daging ikan pada fase post rigor. Laju pertumbuhan histamin dapat diperlambat dengan cara menjaga mutu ikan menggunakan suhu dingin. Tujuan dari penelitian ini adalah menentukan lama waktu penyimpanan, perubahan kimia dan mikrobiologis ikan tongkol Thunnus tonggol serta waktu terdeteksinya gen hdc selama penyimpanan suhu 8±3°C. Rancangan penelitian yang digunakan adalah rancangan acak lengkap (RAL) dengan parameter perbedaan waktu penyimpanan ikan (1,2,3,4,5,6,7 hari) dan perbandingan es 1:1. Hasil penelitian menunjukkan ikan tongkol abu-abu mengalami kemunduran mutu selama 7 hari penyimpanan. Nilai organoleptik dan pH mengalami penurunan selama penyimpanan dan pada hari ketujuh ikan berada pada fase rigormortis. Nilai TVB dan TPC meningkat selama penyimpanan dan pada penyimpanan hari keenam sudah melewati batas aman untuk dikonsumsi. Kadar histamin pada hari ketujuh yaitu 1,96 ppm. DNA berhasil di-isolasi dan terdeteksi gen hdc, namun hasil amplifikasi belum efektif, sehingga diperlukan optimalisasi metode PCR. Profil protein yang terbentuk selama penyimpanan berdasarkan hasil SDS-PAGE mulai terpisah karena adanya aktivitas enzim katepsin.]]>
<![CDATA[ANALISIS KEANEKARAGAMAN BIOTA LAUT SEBAGAI DAYA TARIK WISATA UNDERWATER MACRO PHOTOGRAPHY (UMP) DI PERAIRAN TULAMBEN, BALI ]]>
<![CDATA[Zainul Arifin]]>;
<![CDATA[Fredinan Yulianda]]>;
<![CDATA[Zulhamsyah Imran]]>
<![CDATA[ Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 11 No. 2 (2019): Jurnal Ilmu dan Teknologi Kelautan Tropis ]]>
Publisher : <![CDATA[Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University ]]>
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DOI: 10.29244/jitkt.v11i2.23383
<![CDATA[Sumberdaya (biota laut) pada wisata selam dengan minat khusus Underwater Macro Photography (UMP) dimanfaatkan sebagai objek komoditi. Potensi sumberdaya untuk wisata selam UMP ini perlu digali sebagai daya tarik khusus dalam wisata selam terutama pada karakter lingkungan yang tidak memiliki ekosistem terumbu karang yang begitu rapat. Tujuan penelitian adalah menilai keragaman, frekuensi kemunculan spesies, dan keanekaragaman di Area Pencadangan Kawasan Konservasi Perairan Desa Tulamben untuk memunculkan potensi sumberdaya wisata UMP. Penelitian dilakukan pada bulan Maret- Agustus 2018 dan dilakukan pada 6 stasiun pengamatan di dua kedalaman menggunakan transek sabuk. Hasil dalam kajian menunjukkan keragaman jenis spesies UMP keseluruhan sebanyak 92 spesies dari 60 genus yang masuk dalam 7 kategori jenis biota laut. Lokasi keragaman genus tertinggi adalah Singkil dengan jumlah 20 genus. Frekuensi kemunculan biota tertinggi adalah pada kategori nudibranch, ikan dan udang. Keanekaragaman biota pada setiap site/120 m2 masuk dalam kategori sedang. Lokasi Coral Garden dari seluruh stasiun pengamatan memiliki nilai ragam kategori biota terendah akibat tingginya aktifitas penyelaman yang berdampak kepada kerusakan lingkungan dan mengganggu kehidupan biota pada lokasi ini.]]>
<![CDATA[DISTRIBUSI SPASIAL FLUKS KARBON DIOKSIDA DI PERAIRAN KARIMUNJAWA, INDONESIA ]]>
<![CDATA[Nurul Latifah]]>;
<![CDATA[Hadi Endrawati]]>;
<![CDATA[Sigit Febrianto]]>
<![CDATA[ Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 11 No. 2 (2019): Jurnal Ilmu dan Teknologi Kelautan Tropis ]]>
Publisher : <![CDATA[Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University ]]>
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DOI: 10.29244/jitkt.v11i2.23692
<![CDATA[Global warming phenomena occures as result of the increase of the amount of greenhouse gases in the atmosphere which is dominated by anthropogenic CO2 (carbon dioxide). These conditions cause climate change on the earth. Therefore, the absorption of carbon dioxide gas in the atmosphere is needed, one of which is through an ocean processes called blue carbon. The purpose of this study was to determine the potential of blue carbon absorption (fluxes CO2) in Karimunjawa waters. This research was conducted in the waters around Karimunjawa Island in May 2018. The research method used a survey method with a quantitative approach. Samples were taken at 15 observation stations of Karimunjawa Island using purposive sampling method. Analysis of carbonate system data by titrimetric method. The results showed that most of Karimunjawa waters (13 stations) functioned as source of CO2 with a range of CO2 flux values between 1.79 to 21.64 mmolCO2/m2/day where the flow of CO2 moved from the ocean to the atmosphere. While the other 2 stations function as sink of CO2 where the flow of CO2 moved from the atmosphere to the ocean with a range of CO2 fluxes of -3.69 to -4.41 mmolCO2/m2/day. The pattern of CO2 fluxes followed a pattern of ∆pCO2, DIC, total alkalinity, salinity, pH. The CO2 flux pattern follows the pattern of changes in ∆pCO2, DIC, total alkalinity, salinity and pH. The spatial distribution of potential blue carbon uptake (fluxes CO2) in Karimunajwa waters as a release of CO2 from the oceans into the atmosphere with a positive flux CO2 value.]]>
