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Dietriech G. Bengen
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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 656 Documents
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Sedimentation Rate Analysis in Public Port, Lhokseumawe City Yudho Andika; Erniati; Imanullah; Hafli, T. Mudi; Hasibuan, Rani Adinda Melani; Harahap, Usnia Puada; Febriza, Fira; Putra, M. Afif Tri; Syakura, Abdan
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 17 No. 1 (2025): 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.v17i1.58724

Abstract

Sedimentation is the process of deposition of material from rocks that is transported by the movement of water and wind. Sedimentation that takes place continuously causes siltation in water areas. If shallowing occurs in the port area, it will have an impact on the decline in port functions and even threaten the security of sea transportation routes. The purpose of this study was to analyze the rate of sedimentation in the General Port of Lhokseumawe City which includes sediment characteristics and oceanographic parameters that affect the sedimentation process. This study used a survey method with purposive sampling at 4 observation stations for 7 days. The highest sedimentation rate was found at Station 4 which was 6,22 mg/cm2/day and the lowest at Station 2 which was 3,65 mg/cm2/day. The dominant sediment grain size in the General Port of Lhokseumawe City is very fine sand type with a value of 38,04%. PCA analysis of very fine sand type sediments deposited the most. The highest current velocity at station 2 with a value of 0.10 m/s while the highest tide on the first day was 320 cm in height. The current speed has an inversely correlation to the sedimentation rate with a value of 81,52%.
Heavy Metal Absorption in Lasolo Bay using a Composite of Cashew-Based Activated Charcoal and Iron Sand, Southeast Sulawesi, Indonesia Eso, Rosliana; Irawati; Bahdat; Asmadin; Arman; Alfat, Syahdin; Hasan, Erzam S
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 17 No. 2 (2025): 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.v17i2.63332

Abstract

Penelitian ini menggunakan komposit karbon aktif dari cangkang mete dan ekstrak pasir besi untuk mengurangi kadar logam berat (Cu, Ni, Zn, Pb, dan Cd) dalam air laut yang tercemar di teluk Lasolo Provinsi Sulawesi Tenggara. Ukuran butir komposit divariasikan menjadi 60 mesh, 100 mesh, dan 200 mesh dengan rasio arang aktif terhadap pasir besi sebesar 2:3 untuk memperoleh daya serap yang optimal. Komposit kemudian dipadatkan menjadi pelet dengan tekanan pemadatan masing-masing sebesar 42,2 Pa, 84,8 Pa, dan 141,5 Pa guna mencapai kekuatan tekan optimum dari komposit. Konsentrasi unsur logam berat diukur menggunakan Spektrofotometer Serapan Atom (AAS). Tekanan pemadatan optimal pada komposit ditemukan pada 141,5 Pa, dengan efisiensi penyerapan sebesar 61% untuk Zn, 96% untuk Pb, 48% untuk Cd, 90% untuk Cu, dan 94% untuk Ni. Berdasarkan hasil penelitian, penyerapan tertinggi diperoleh pada komposit dengan ukuran butir 200 mesh, dengan efisiensi penyerapan sebesar 62,21% untuk Zn, 96,87% untuk Pb, 48,14% untuk Cd, 90,98% untuk Cu, dan 94,15% untuk Ni. Semakin besar tekanan pemadatan yang diberikan pada komposit, semakin tinggi persentase penyerapan pelet komposit. Sebaliknya, semakin halus ukuran butir komposit, semakin besar daya serapnya.
SIMULASI PERTUMBUHAN TERUMBU KARANG (Porites lutea) DENGAN METODE LOGIKA FUZZY DI PULAU TUNDA PROVINSI BANTEN Koropitan, Alan Frendy; Zamani, Neviaty P; Idris, Muhamad Kemal
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 17 No. 2 (2025): 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.v17i2.63475

Abstract

Corals grow annually at varying rates, influenced by environmental conditions. As key indicators of marine ecosystem health, studying coral growth is essential for predicting the impacts of environmental change. While previous research has explored coral growth extensively, most studies focus on existing conditions and the descriptive influence of environmental parameters. In fact, coral growth time-series data offer potential for deeper analysis, particularly in identifying dominant periodicities and enabling long-term projections. This study aims to develop an annual coral growth model using fuzzy logic approach. The Indian Ocean Dipole (IOD) is identified as a significant factor influencing the growth of Porites lutea in Tunda Island. Variations in sea surface temperature during IOD events notably affect coral growth, with positive IOD phases (IOD+) generally enhancing it. Analysis shows that the annual growth rings of Porites lutea in the northern station of Tunda Island, which borders open waters respond more slowly to SST fluctuations compared to the southern station, which is more sheltered. Fuzzy simulation results suggest that corals may be able to adapt to climate change. By the year 2085, coral growth is projected to recover from -0.75 cm to 0.1 cm by 2100. Based on SST projections from 1900 to 2100, SST anomalies are expected to continue increasing, reaching +0.45 °C.
Analysis of Water Suitability for Ecotourism Development on Several Beaches in Morella Village, Central Maluku Regency, Maluku Province Leiwakabessy, Fredy; Kubangun, Muhammad Tarmizi; Pattiasina, Eifan Boyke
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 17 No. 2 (2025): 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.v17i2.63710

Abstract

Maluku is known as an archipelago and most of its territory is coastal and marine. Coastal areas play an important role in economic activities, such as tourism. The attractive and touristic value of coastal areas must be managed and developed for sustainable welfare through marine tourism. The Lubang Buaya Beach tourist attraction located in Morella Village, Leihitu District, Central Maluku Regency has several advantages including an easily accessible location, the beauty of the blue-black sea water, various coral reefs with various colors and shapes (both soft and hard), and various colorful fish that adorn the sea of ​​Lubang Buaya Beach. In addition, one of the areas that has the potential to become an ecotourism destination in Maluku is Moki Beach located in Morella Village, the beach is very supportive for marine tourism locations because it has an exotic beach and a sea that contains a lot of biodiversity. In an aquatic environment, the levels of essential nutrients generally fluctuate greatly because they are influenced by various complex factors such as intake by biological processes, adsorption, release and sedimentation by suspended particles, input from land (allogenic elements) and the influence of the hydrodynamic conditions of the waters themselves. Analysis of the chemical characteristics of essential nutrients in the waters of Lubang Buaya Beach and Moki Beach will provide an overview of the suitability of the waters for ecotourism development. Indirectly related to the productivity and carrying capacity of the waters concerned, which are tourist areas in Maluku Province.
Long-Term Monitoring of Mangrove Resilience in the Sundarbans after Cyclone Sidr and Aila using Landsat-Derived Vegetation Indices Rahman, Md. Saifur; Rahman, Md. Mostafizur; Rahman, Syed Hafizur
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 17 No. 2 (2025): 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.v17i2.64452

Abstract

The present work aims at assessing vegetation patterns and of the recovery process over the long term (2006 to 2025) in the Sundarbans mangroves based on the NDVI and SAVI. Landsat 5 TM and Landsat 8 OLI surface reflectance images were processed in Google Earth Engine to derive seasonal composites for the dry season (December–February). A supervised classification method was used to delineate five land-cover classes, namely water bodies, bare soil, sparse, intermediate, and dense vegetation. Accuracy assessment was carried out by visual interpretation of the sample points by using Google Earth Pro where overall accuracy was in the 88–93% over the entire study period. In 2006, dense vegetation was the most dominant (~68%) and sparse and intermediate other categories had low frequency and water bodies covered 21% of plots. For post-Sidr in 2008, nearly all plants showed more severe damage (76-79%). Post-Aila (2010) data suggested continuous intermediate (46%) and sparse (25%) vegetation cover but with negligible closed canopy. During 2015, the dense vegetation recovered to 60%, and dynamic changes among dense, intermediate, and sparse vegetation areas emerged, and the area of dense vegetation was up to 67% in 2025 indicating that the long-term restoration exhibits space heterogeneity. NDVI was effective for monitoring the overall trend of large scale canopy, while SAVI was able to capture very small scale regeneration and understory growth. The findings show the impressive resilience of the Sundarbans and the significance of such key ecological processes as canopy recovery and succession, and the need for more adaptive management to improve mangrove resilience in cyclone-prone coastal areas.
Seagrass Restoration Review: Spatial Analysis of Potential Habitats, Innovative Restoration Methods, and Predictive Modeling for Monitoring Tika, Nurhasanah; Fauziah, Yasmin; Nurfata, Azzahra Shinta Bilqis; Koesratmoko, Eko; Patria, Mufti Petala; Silaban, Denny Riama
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 17 No. 2 (2025): 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.v17i2.64544

Abstract

  Seagrass ecosystems are vital for maintaining marine ecological balance, supporting the blue carbon cycle, offering habitat for marine organisms, and safeguarding coastal areas against erosion. Nevertheless, seagrass ecosystems worldwide are declining substantially due to human activities and climate change. This trend is also evident in Indonesia, where approximately 7% of seagrass coverage is lost annually. This research examines existing literature on seagrass restoration by focusing on three key approaches: spatial assessment of suitable habitats, advancements in physical restoration techniques, and the creation of predictive models for evaluating restoration outcomes. The goal is to offer comprehensive insights into the challenges and prospects for improving management and establishing more effective and sustainable restoration strategies in coastal environments. A Systematic Literature Review (SLR) combined with bibliometric analysis was conducted on 177 publications from the Scopus database spanning 2019 to 2024 to identify research trends, technological advancements, and existing challenges in seagrass restoration. The research emphasizes the necessity of a holistic approach to seagrass restoration, incorporating spatial analysis, developing flexible restoration techniques, and implementing predictive modeling and statistical assessments to enhance long-term planning and monitoring efforts. The case study in Jepara demonstrates the effectiveness of participatory approaches at the local scale, despite limitations in technology and long-term monitoring. Integrating spatial and digital technologies, strengthening local capacity, international collaboration, and multidisciplinary integration are key to improving the effectiveness and sustainability of seagrass restoration, while strengthening its contribution to coastal resilience and climate change mitigation.

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