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[REPRODUCTION BIOLOGY EASTERN LITTLE TUNA Euthynnus affinis IN THE SUNDA STRAIT ]]>
<![CDATA[Vera Ardelia]]>;
<![CDATA[Yon Vitner]]>;
<![CDATA[Mennofatria Boer]]>
<![CDATA[ Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 8 No. 2 (2016): Elektronik 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.v8i2.15835
<![CDATA[Eastern little tuna is small pelagic fish that has high economic value. Fishing effort of the eastern little tuna for the last eight years have also exceeded the optimum level. To ensure the sustainability of the pelagic fish resources, it is necessary to perform the management efforts. This study was to observe reproductive Biology of the eastern little tuna, as one of the necessary information in the management of fishery resources. Fish -samples were collected from the catch of local fishermen in April-August 2015. Based on T test (α = 0,05), the eastern little tuna males and females showed positive allometric growth patterns. Average size of the first time caught fish for the female (308,37 mm) and male (280,63 mm) was smaller than that observed in those first time maturity gonads (ranging 407-408 mm for female and 438-440 mm for male). The eastern little tuna spawn gradually or partially (partial spawner), and have high reproductive potential with fecundity ranged 17.814-560.792 eggs (average fecundity: 109.807) in fish of 285-630 mm body length. The gonad maturity level of the eastern Little Tuna is dominated by Gonad maturity level I and II,(immature). The value of gonad maturity for the female level is about 0,0769-0,6879 and the male is 0,1913-0,3000.]]>
<![CDATA[REPRODUCTION BIOLOGY OF GOLDBAND GOATFISH Upeneus moluccensis Bleeker, 1855 IN SUNDA STRAIT ]]>
<![CDATA[Herman Sarumaha]]>;
<![CDATA[Rahmat Kurnia]]>;
<![CDATA[Isdradjad Setyobudiandi]]>
<![CDATA[ Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 8 No. 2 (2016): Elektronik 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.v8i2.15836
<![CDATA[This research was to analyze the reproduction biology of the goldband goatfish in the Sunda Strait as a reference for appropriate and sustainable management. Sampling was collected from April to August 2015. The samples from Sunda Strait were obtained from the fisherman yielded in the Coastal Fishing Port Labuan, Pandeglang, Banten Province. The sample was analyzed in Fisheries Biology Laboratory, Aquatic Resources Management Department, Fisheries and Marine Science Faculty, Bogor Agricultural University. Fish samples were measured, weighed and dissected, then morphologically observed for the reproductive organs. Samples obtained during the research were 811 specimen with the total length of 82-219 mm. Sex ratio among females and males were 1.5:1. The size at first maturity of females and males were 124 mm and 120 mm, respectively. Females were dominated by gonad maturity stage III and I, while for males dominated by gonad maturity stage I and II. Based on the composition of the TKG and IKG values each month, spawning season of the goldband goatfish in the Sunda Strait occurred in April and August. Fecundity obtained ranged 955-59.356 eggs with partial spawning type.]]>
<![CDATA[RESPONSIBLE FISHERIES MANAGEMENT OF MINI PURSE SEINE IN THE LAMPUNG BAY AREA ]]>
<![CDATA[Yulia Estmirar Tanjov]]>;
<![CDATA[Roza Yusfiandayani]]>;
<![CDATA[. Mustaruddin]]>
<![CDATA[ Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 8 No. 2 (2016): Elektronik 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.v8i2.15837
<![CDATA[Lempasing is a Coastal Fishing Port (CFP) which located in Bandar Lampung. It is one of the centers of fisheries activities in the city. One of the fishing gear which operated by most of fishermen in Lempasing is mini purse seine. Mini purse seine fishing activities in the Lampung Bay Area and Lempasing CFP is not in accordance with the conditions of the surrounding waters area. The research was conducted in the Lampung Bay Area and Lempasing CFP, Lampung. This study aims to: 1) determine the status of fisheries resources utilization, 2) to describe the dominant fish caught by mini purse seine. Analysis methods were used in this study namely: 1) Fishing Power Index (FPI), Catch Per Unit Effort (CPUE), and Maximum Sustainable Yield (MSY) to determine the status of fisheries resource utilization. The dominant small pelagic fishes caught were scad fish Selaroides sp., mackerel fish Rastrelliger sp., longnose trevally fish Carangoides chrysophrys. The result showed that Fox model was the best fits models with estimated maximum sustainable yield of 15.5 ton and fishing effort of 992 trip/year for mini purse seine. The longnose trevally fish in lampung bay area in do not exceeded the optimal catch fish condition can be used to sustainably. In these condition is necessary to wisely manage and setting the catches to not exceed the allowable catch of the small pelagic fish, so the stock of small pelagic fish in the Lampung Bay Area can be used sustainably.]]>
<![CDATA[COMPOSITION AND ANTIBACTERIAL ACTIVITIES OF MARINE SPONGES FROM DIFFERENT SEAGRASS ECOSYSTEMS IN KEPULAUAN SERIBU WATERS, JAKARTA ]]>
<![CDATA[Meutia Samira Ismet]]>;
<![CDATA[Dietriech G. Bengen]]>;
<![CDATA[Ocky Karna Radjasa]]>;
<![CDATA[Mujizat Kawaroe]]>
<![CDATA[ Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 8 No. 2 (2016): Elektronik 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.v8i2.15838
<![CDATA[A seagrass ecosystem has high productivity that supports many species of associated invertebrates, including sponges. However, seagrass beds with different habitat condition, including seagrass species composition and architectural morphotypes could affect the associative sponge in the ecosystem. This study is aimed to find out about sponge species composition in different seagrass beds. The observation was conducted in two seagrass ecosystems at the east (site 1) and at the southeast (site 2) of Pramuka Island, Kepulauan Seribu, near Jakarta Bay, Indonesia. The Belt Transect was used to assess the density of sponges on the seagrass ecosystem, which was placed parallel to the coastline. The sponges species has higher number at the east than the southeast, with both sites was dominated by Spirastrella sp. and Agelas conifera. Correspondence Analysis (CA) results showed that sponges community has close interaction with seagrass abundance especially Cymodocea rotundata and Enhalus acoroides and architectural characteristic (patchily or continues meadows). Antibacterial assay of sponges tissue showed that only 7 sponge species has activity against targeting bacteria. The CA results also showed that sponge antibacterial activity was not correlated with seagrass species, with low bactericide and bacteriastatic activities. The implication of this result showed that sponges community can grow up at seagrass ecosystem eventhough their potential secondary metabolite activities is very low probably due to lack of stimulus mechanisms in the environment. ]]>
<![CDATA[UTILIZATION OF MARINE FUNGAL Nodulisporium sp. KT29 METABOLITES TO IMPROVE THE PRODUCTION PERFORMANCE OF MARINE CULTURE OF WHITE SHRIMP ]]>
<![CDATA[Fazril Saputra]]>;
<![CDATA[Dinamella Wahjuningrum]]>;
<![CDATA[Kustiariyah Tarman]]>;
<![CDATA[Irzal Effendi]]>
<![CDATA[ Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 8 No. 2 (2016): Elektronik 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.v8i2.15839
<![CDATA[This study aimed to determine the best dose of administration of marine fungal Nodulisporium sp. KT29 metabolites to improve the production performance of marine culture of white shrimp. The experimental animals used were white shrimp Litopenaeus vannamei post larvae 12, which were reared in the sea using floating net cages with a stocking density of 700 post larvae/net. Experimental design used was a completely randomized design consisting of 3 treatments with 3 replications; control without the administration of Nodulisporium sp. KT29 metabolites, dietary of feed containing Nodulisporium sp. KT29 metabolites at doses of 20 mL/kg of feed and 40 mL/kg of feed. The results showed that survival rate, absolute length growth, weight gain, daily growth rate and feed conversion ratio in treatment groups were better than the control (P<0.05). The administration of marine fungal Nodulisporium sp. KT29 metabolites at a dose of 20 mL/kg of feed could improve the production performance of white shrimp cultivated in the sea with survival rate, daily growth rate and feed conversion ratio: 66.61±6.94%, 20.18±0.39 %/day and 3.20±0.22, respectively.]]>
<![CDATA[TOGO PERFOMANCE IN RIVER AND PONDS AT CEMARA LABAT VILLAGE, CENTRAL KALIMANTAN ]]>
<![CDATA[Febrina Berlianti]]>;
<![CDATA[Roza Yusfiandayani]]>;
<![CDATA[M. Fedi A. Sondita]]>;
<![CDATA[Bambang Murdiyanto]]>
<![CDATA[ Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 8 No. 2 (2016): Elektronik 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.v8i2.15840
<![CDATA[Togo is a passive gear and classified as a trap and guiding barrier. Togo fishery in Cemara Labat village covers fishing activities in river and ponds. Penaeus indicus fishing in ponds are considered more profitable because catches obtained were greater thanboth in term of abundance and biomass. This study aims to identify fishing unit, compare the productivity and analyze differences in the number and size of catches of togo in river and ponds. The research used case study, survey and interview techniques to collect data on the performance of the fishing gear, productivity, the number and size of catches were analyzed using technical analysis, productivity trip and unpaired comparisson t-test. Results showed fishing unit of togo in river consists of fishing gear and boat, while the components on the fishing unit of togo in ponds consisting of fishing gear, ponds and hut. The t -test showed that it differed in abundance and biomass of shrimp on the different togo (p<0.05). The average size in river was 7879 cm with average catch was 10.60 kg while catches per trip was 31.47 kg trip-1 less than togo in ponds which reached 53.45 kg trip-1 with an average number and size where each 31.47 kg and 10.07 cm.]]>
<![CDATA[Cu AND Pb CONCENTRATIONS IN WATER COLUMN AND PLANKTON OF DOWNSTREAM SECTION OF THE MUSI RIVER ]]>
<![CDATA[Wike Ayu Eka Putri]]>;
<![CDATA[Anna Ida Sunaryo Purwiyanto]]>
<![CDATA[ Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 8 No. 2 (2016): Elektronik 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.v8i2.15841
<![CDATA[A wide range of the Musi river usage such as agricultural, forestry, industry, residential, fishing and transport activities has created a heavy metal pollution isues. This research aims to know the concentration of Cu and Pb in the water column (suspended and dissolved) and also on planktons found at downstream of Musi River. Water and plankton sampling was carried out in January and May 2015 across five research stations. Cu and Pb in water and plankton samples were analyzed using the USEPA 30050B method determined by using AAS SpektrAA plus variant with air mixure flame – acetylene. The average concentration of dissolved Cu and Pb were varied from 0.003-0.005 mgL-1and 0.002-0.004 mgL-1, respectively. A higher value was observed during the suspended phase which came to around 8.60-31.79 mgKg-1 for Cu dan 21.23-61.5 mgKg-1 for Pb. Furthermore, Cu and Pb concentration in plankton were varied from 1.046-2.430 mgKg-1 and 0.673-1.283 mgKg-1, respectively.]]>
<![CDATA[CORAL REEF ECOSYSTEM MANAGEMENT IN AREA OF EASTERN COASTAL WATER CONSERVATION WEH ISLAND SABANG ]]>
<![CDATA[Nurul Najmi]]>;
<![CDATA[Mennofatria Boer]]>;
<![CDATA[Fredinan Yulianda]]>
<![CDATA[ Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 8 No. 2 (2016): Elektronik 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.v8i2.15842
<![CDATA[Coral reef ecosystem is important for coastal resources.Damage of Coral reefs resulted in de-gradation of population and fishes reef diversity. The East coast ofWeh Island in Sabang designated as conversation area that has aim to keep coral reefs from destructive utilization activites.The purpose of this study was to know the status of coral reefecosystemsmanagement in marine protected areaEast CoastWeh Island, Sabang and to analyze theattributessensitivelyfromthedimension ofecological,socio-economicand institutional sector.The methodthat used toknow the statusof the sustainablemanagementis RAPFISHanalysis.Dimensions oftheecologycan be known by measuring the coral growth used thePointInterceptTransect,reef fishabundanceusedUnderwaterVisualCensusFishmethod.Socio-economicand institutionaldimensionswill be collected through Focus Group Discussion(FGD) and help by questionnaires.Management status of coral reef ecosystems in the region of the East coast Weh islandmultidimensionallyindicatesthat it was quitesustainable.The most sensitiveattributeofthe managementisthe growth ofsaplings ofcorals,reef fishabundance,conflicts betweenfishermen,the public perceptionagainstthe abundance of fish, the role of the community, and the fishingmanagements.]]>
<![CDATA[POLA DISTRIBUSI DAN KELIMPAHAN POPULASI KELOMANG LAUT DI PANTAI SINDANGKERTA, KECAMATAN CIPATUJAH, KABUPATEN TASIKMALAYA ]]>
<![CDATA[Ari Permana]]>;
<![CDATA[Uus Toharudin]]>;
<![CDATA[. Suhara]]>
<![CDATA[ Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 10 No. 1 (2018): 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.v10i1.16334
<![CDATA[Penelitian ini telah dilakukan pada bulan April 2016. Penelitian ini bertujuan untuk mendapatkan informasi secara kuantitatif mengenai pola distribusi dan kelimpahan populasi kelomang laut. Metode penelitian yang digunakan adalah metode deskriptif dengan desain penelitian belt transect dan teknik pengambilan sampel hand sorting. Pengambilan sampel dilakukan pada Zona Litoral di 6 stasiun dengan 5 plot kuadrat tiap stasiun. Luas plot kuadrat yang dipakai berukuran 1 x 1 m. Data yang diambil adalah data kelomang laut dan data pendukung lingkungan. Analisis data meliputi pola distribusi dan kelimpahan populasi kelomang laut. Determinasi kelomang dilakukan di Laboratorium Pusat Penelitian LIPI Oseanografi Jakarta. Hasil determinasi diperoleh 50 individu kelomang laut yang terdiri dari satu suku dan 9 jenis, yaitu Aniculus erythraeus, Calcinus morgani, Calcinus laevimanus, Clibanarius corallinus, Clibanarius humilis, Clibanarius mergueinsis, Clibanarius striolatus, Clibanarius virescens, dan Dardanus megistos. Hasil penelitian menunjukkan bahwa kelimpahan populasi kelomang laut berkisar antara 1 ind/m2 – 2 ind/m2. Analisis kelimpahan secara umum menunjukkan tingkat kelimpahan yang rendah. Indeks Morisita menunjukkan pola distribusi kelomang laut di Pantai Sindangkerta termasuk kategori mengelompok (Id > 1) dan seragam (Id < 1).]]>
<![CDATA[PEMODELAN FISIK 3-D PADA FLOATING – TYPE BREAKWATER ]]>
<![CDATA[Harman Ajiwibowo]]>
<![CDATA[ Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 10 No. 1 (2018): 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.v10i1.16912
<![CDATA[BP Tangguh memiliki fasilitas pelabuhan di Teluk Bintuni, Papua Barat dengan kedalaman perairan 6 m hingga 9 m. Pada kasus ini direncanakan suatu breakwater terapung untuk melindungi aktivitas dan fasilitas pelabuhan. Pengujian model fisik 3-D dilakukan di kolam gelombang untuk menentukan efektivitas terhadap kondisi lingkungan perairan Teluk Bintuni dengan mengukur koefisien transmisi (KT). Kolam gelombang dilengkapi dengan piston pembangkit gelombang monokromatik, 4 wave gauge dan DAS (Data Acquisition System) 8 kanal. Data tinggi (H) dan periode gelombang (T) diperoleh dari rekaman sensor gelombang dan divalidasi dengan pengamatan pada peilschaal. Tinggi gelombang datang di depan breakwater (Hi) dan tinggi gelombang transmisi di belakang breakwater (Ht) diukur dan diproses untuk mendapatkan KT. Selanjutnya, hubungan antara KT dan bilangan tak berdimensi lainnya dianalisis. Hasil dari model fisik ini adalah breakwater terapung yang diajukan efektif untuk gelombang pendek dan menengah, dan tidak efektif untuk gelombang panjang. Selain itu, konfigurasi breakwater pada satu sisi bagian utara saja (konfigurasi 1) dipilih karena perbandingan dengan konfigurasi breakwater di dua sisi (utara dan barat, konfigurasi 2) dihasilkan gelombang transmisi yang tidak jauh berbeda. Bahkan konfigurasi 2 (breakwater di dua sisi) menghasilkan gelombang berdiri pada kolam pelabuhan dengan tinggi lebih dari tinggi gelombang datang. Pada gelombang pendek, breakwater terapung menghasilkan koefisien transmisi sebesar 0,5 hingga 0,7. Koefisien transmisi mengecil apabila gelombang datang dengan periode yang lebih kecil lagi.]]>
