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All Journal Jurnal Ilmu dan Teknologi Kelautan Tropis ILMU KELAUTAN: Indonesian Journal of Marine Sciences KAPAL Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Jurnal Sumberdaya Akuatik Indopasifik JFMR (Journal of Fisheries and Marine Research) Omni-Akuatika Jurnal Penelitian Pendidikan IPA (JPPIPA) TRITON : Jurnal Manajemen Sumberdaya Perairan Grouper: Jurnal Ilmiah Perikanan Jurnal Inovasi Penelitian Nekton Biofaal Journal Phydagogic : Jurnal Fisika dan Pembelajarannya Pakem : Jurnal Pengabdian Kepada Masyarakat Pattimura Proceeding : Conference of Science and Technology Mestaka: Jurnal Pengabdian Kepada Masyarakat Jurnal Laut Pulau Aspirasi : Publikasi Hasil Pengabdian dan Kegiatan Masyarakat Journal of Coastal and Deep Sea Balobe: Jurnal Pengabdian Masyarakat Jurnal Meteorologi dan Geofisika Jurnal Perikanan
Simon Tubalawony
Univeritas Pattimura
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The Seasonal Variations of the Thermocline in the Banda Sea and its Water Mass Characteristics Simon Tubalawony; Ronald D. Hukubun; Degen E. Kalay
Jurnal Penelitian Pendidikan IPA Vol 10 No SpecialIssue (2024): Science Education, Ecotourism, Health Science
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10iSpecialIssue.9071

Abstract

This research was conducted to examine the seasonal variations in the Banda Sea's thermocline layer and its water mass characteristics. The research was conducted by analyzing Argo Float data. The data consists of six observation stations in West Season and Transitional Season II, and four stations in Transition Season I and East Season The thermocline layer thickness was identified based on the depth where the temperature decreased ≥ 0.05oC/m. The thermocline layer's distribution of depth and thickness and the distribution of temperature and salinity seasonally in the thermocline layer were analyzed with Microsoft Excel 2010. The analysis results showed that East Season and Transition Season II have a shallower upper boundary depth of the thermocline layer, a deeper lower boundary of the thermocline layer, and the thermocline layer is thicker when compared to the West Season and Transition Season I. The average temperature distribution is higher and the average salinity is lower in the West Season and Transition Season I. The mean rate of change in salinity and temperature in the thermocline layer seasonally ranged from 0.002-0.004 PSU/m and 0.06-0.08oC/m. The thermocline layer's stratification is stronger in the West Season and Transition Season I.
the CORRELATION BETWEEN SEA SURFACE TEMPERATURE AND CONVECTIVE CLOUDS IN AMBON ISLANDS Pasaribu, Puput Mustika; Tubalawony, Simon; Masrikat, Julius Anthon Nicolas
Jurnal Meteorologi dan Geofisika Vol. 26 No. 2 (2025)
Publisher : Pusat Penelitian dan Pengembangan BMKG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31172/jmg.v26i2.1085

Abstract

Sea surface temperature (SST) plays a key role in modulating tropical convection, yet its influence on the vertical structure of convective clouds in island-based, anti-monsoonal regions remains poorly quantified. This study examines the relationship between SST variability and convective cloud characteristics over the coastal waters of Ambon Island during 2023. Daily SST data were obtained from ERA5 reanalysis, while convective parameters Convective Condensation Level (CCL) and Equilibrium Level (EL) were derived from twice-daily radiosonde observations. Owing to non-normal distributions and serial autocorrelation, Spearman rank correlation was applied with effective sample size (ESS) correction and bootstrap confidence intervals. Results show that SST exhibits a pronounced seasonal cycle primarily governed by monsoonal forcing. SST displays a moderate positive correlation with CCL (ρ = 0.532-0.580) and a consistently strong correlation with EL across all stations (ρ = 0.770-0.778; p_adj < 0.001), indicating a stronger SST control on convective depth than on cloud-base height. Although large-scale climate modes (ENSO, IOD, and MJO) contribute to short-term variability, seasonal monsoonal forcing remains the dominant modulator of SST-convection coupling. These findings represent robust statistical associations and highlight the importance of ocean-atmosphere coupling in regulating convective cloud structure in tropical maritime island environments.
Tropical cyclone Lili in the Banda Sea, Indonesia: formation, development, and oceanic interaction Moksen Siwasiwan; Simon Tubalawony; Yunia Anganetjie Noya
Nekton Vol 5 No 1 (2025): Nekton
Publisher : Politeknik Negeri Sambas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47767/nekton.v5i1.919

Abstract

The Banda Sea serves as Indonesia's central region of water mass circulation and receives water flows from the Pacific Ocean, Indian Ocean, and South China Sea. This unique position facilitates significant interactions between the atmosphere and the ocean. This study aims to assess the dynamic factors supporting tropical cyclone Lili's growth in the Banda Sea. This study uses data from the Climate Data Store (CDS) and Marine Copernicus for May 4-12, 2019. The results show atmospheric dynamics, including the presence of low-pressure zones, high air humidity, and other meteorological factors that support the formation and movement of cyclones. During the study period, oceanographic conditions showed varying wind directions from various sources, hindering the wave formation process. Current patterns were observed moving from Australia through Tanimbar waters towards the Banda, Seram, and Timor Seas. In addition, eddy formation was found in Wetar waters, with downwelling processes occurring in the Banda Sea, while upwelling was detected in eastern Seram waters.
Seasonal Variability of Wind, Surface Current and Sea Surface Temperature in the Eastern Seram Waters During the 2015 Super El Nino Cipta Utama; Simon Tubalawony; Harold Joppie Davido Waas; Ronald Darlly Hukubun; Marlin Chrisye Wattimena
Nekton Vol 5 No 2 (2025): Nekton
Publisher : Politeknik Negeri Sambas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47767/nekton.v5i2.1062

Abstract

The eastern Seram waters are influenced by both the Seram Sea and the Banda Sea. This study aimed to examine variations in wind, surface currents, and sea surface temperature (SST) during 2015, coinciding with the super El Niño event. Data were obtained from the Group for High Resolution Sea Surface Temperature (GHRSST) and the Copernicus Marine Environment Monitoring Service (CMEMS). The results indicated that the monthly average wind speed in this area ranged from 0.01 to 8.98 m/s, with the lowest speed in November and the highest from January and June to September. Surface currents also exhibited seasonal variability, flowing from the Seram Sea to the Banda Sea during the west season (December–January) and reversing eastward in February. During the east season, Banda Sea water masses were supplied by Seram Sea water. Sea surface temperature decreased notably from June to August, with the lowest temperature recorded in August due to upwelling in the Banda and Arafura Seas. Surface currents formed eddies with warm water centers in the northern part of eastern Seram waters, and cold water centers (25,4 °C) were also observed. The convergence of these two water masses with distinct characteristics generated thermal fronts with temperature differences, resulting in strong temperature gradients from August to October as a consequence of upwelling and cooling induced by the intense El Niño at the end of 2015.
Analysis of Sea Surface Temperature and Chlorophyll-A and Its Relationship with Catch Results Flying Fish Eggs in the Waters of the Kei Islands Alex S. W Retraubun; Simon Tubalawony; Julius A. N. Masrikat; Ronald Darlly Hukubun
Jurnal Penelitian Pendidikan IPA Vol 9 No 12 (2023): December
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i12.6240

Abstract

The Kei Islands water area is quite productive in fisheries management. Environmental characteristics and oceanographic factors in a body of water will determine the potential of fisheries resources in a water body, and influence fish movement patterns and the formation of fishing areas for flying fish eggs. This research aims to examine the distribution of sea surface temperature and chlorophyll-a concentrations and analyze the relationship between sea surface temperature and chlorophyll-a concentrations with catches of flying fish eggs. The research focused on the waters of the Kei Islands, Southeast Maluku, which is an area for catching flying fish eggs. The research data was studied in the period December 2014 – November 2017. SPL and Chlorophyll-a data were downloaded from Citra MODIS-Aqua, while data on flying fish egg production was obtained from PPN Tual. The research results show that the monthly average SST distribution is between 25.03-30.42ºC, and the monthly average of chlorophyll-a varies quite widely with a range of 0.05-3.09 mg/m3. The number of flying fish egg production fluctuates every year with a production range of 36.28-81.905 kg. The peak of catching flying fish eggs occurs in June-September (eastern season and transition season II). The results of the analysis show that the correlation between SST and chlorophyll-a variables has a very dominant influence on the abundance of flying fish eggs.
Characteristics of Monsoon Current Patterns in Maluku Waters in the ENSO Period Yusran Abdul Gani Tuatoy; Simon Tubalawony; Ronald Darlly Hukubun
Nekton Vol 6 No 1 (2026): Nekton
Publisher : Politeknik Negeri Sambas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47767/nekton.v6i1.1079

Abstract

The hydrodynamic conditions of the Maluku waters are highly dynamic and are generally influenced by several oceanographic factors, including current patterns that are also affected by variations in monsoonal winds. At present, global climate change associated with the El Niño–Southern Oscillation (ENSO) phenomenon is suspected to have altered wind and current patterns. This study aims to examine the variations in monsoonal wind patterns and monsoonal current patterns during ENSO events in the Maluku waters, including the Seram Sea, Banda Sea, and Arafura Sea. Monthly averaged wind and current data were obtained from the Copernicus database, while ENSO index data were acquired from the National Oceanic and Atmospheric Administration (NOAA) database. The results indicate that the average maximum wind speed during the West Monsoon reaches 6.1 m/s with a southeastward direction, whereas during the East Monsoon it reaches 9.2 m/s with a northwestward direction. Based on the direction of movement, the prevailing winds are characterized as monsoonal winds. The average maximum current velocity during the West Monsoon reaches 0.8 m/s with an eastward direction, while during the East Monsoon it reaches 1.4 m/s with a dominant westward movement. The dominant direction of current movement generally follows the direction of the monsoonal winds. The influence of ENSO indicates that the average wind speed and spatial distribution of winds increase during El Niño events, whereas the average current velocity and spatial distribution of currents increase during La Niña events.
IMPLEMENTASI RUMPON RAMAH LINGKUNGAN (BIODEGRADABLE FAD) SEBAGAI SOLUSI EKOLOGIS PADA PERIKANAN TUNA Haruna Haruna; Simon Tubalawony; Agustinus Tupamahu; Kedswin Gerson Hehanussa
PAKEM: Jurnal Pengabdian Kepada Masyarakat Vol 6 No 2 (2026): Pakem : Jurnal Pengabdian Kepada Masyarakat
Publisher : Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/pakem.6.2.176-185

Abstract

Tanjung Air Panas Hamlet, Tulehu Village, is one of the traditional tuna fisheries centers using hand line fishing gear located on the eastern coast of Ambon Island. In fishing practices, local fishers utilize conventional fish aggregating devices (FADs), which are mostly made of synthetic materials such as plastic and nylon nets. The use of these materials has the potential to contribute to marine pollution and is less supportive of sustainable marine ecosystem management. This community service activity aimed to introduce and implement environmentally friendly fish aggregating devices (biodegradable FADs) made from locally available natural materials such as bamboo, coconut leaves, and rattan. The implementation methods included socialization, training on FAD construction, technical assistance, and evaluation using a Likert-scale questionnaire to assess fishers’ level of understanding, technical skills, and attitudes toward the introduced technology. The activity involved two groups of tuna hand line fishers with a total of 25 participants who took part in the entire program. The evaluation results showed that the average scores of the indicators ranged from 4.1 to 4.8 (good to very good category). Fishers’ understanding of the concept of environmentally friendly FADs obtained an average score of 4.6, technical skills in assembling and installing FADs ranged from 4.2 to 4.3, and fishers’ willingness to shift from synthetic-material FADs to natural-material FADs obtained a score of 4.7. These results indicate a positive response from fishers toward the implementation of environmentally friendly FADs, particularly in terms of knowledge, technical skills, and ecological commitment. The application of biodegradable FADs has the potential to serve as an environmentally friendly fishing technology alternative and support sustainable tuna fisheries management in Tulehu waters.
Spatial Distribution of Nutrient in The Waters of Haruku Strait, Central Maluku Regency, Maluku Province Simon Tubalawony; Elvira D Sopalauw; Frederika S Pello
Grouper Vol. 15 No. 1 (2024): Grouper : Jurnal Ilmiah Perikanan
Publisher : Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/grouper.v15i1.225

Abstract

Strait waters are influenced by tides, water masses and surrounding land. This study aims to analyze the spatial distribution of nutrients in the waters of the Haruku Strait, Central Maluku Regency, Maluku Province. The research method used is the survey method by taking water samples. Water samples were taken from 17 observation stations spread across the Haruku Strait at depths of 1 meter, 25 meters and 50 meters using the Niskin Bottle Water Sampler. Nitrate concentration analysis using the OPTIZEN Alfa equipment (Spectrophotometer UV-Vis) and the Brucine Sulfate method (SNI: 06-2480-1991) and phosphate concentration analysis using the Ammonium Molybdate method (APHA 10th ed. 5400-PD, 1998). The time of observation took place on July 23, 2022. The results showed that the average concentration of nitrate at a depth of 1 m was 1.146 ± 0.647 mg/L, a depth of 25 m was 1.148 ± 0.709 mg/L and a depth of 50 m was 1.136 ± 0.701 mg/L while the average concentration of phosphate at a depth of 1m was 0.051 ± 0.028 mg/L, a depth of 25 m was 0.053 ± 0.029 mg/L and at a depth of 50 m was 0.049 ± 0.020 mg/L. The waters of the Banda Sea, the Seram Strait and contributions from the rivers on the coast of Ambon Island play a role in the distribution of nutrients in the waters of the Haruku Strait.
Co-Authors Abdulah Basalamah Abrahamsz, James Agustinus Tupamahu Alex S. W Retraubun Ana Yeti Huwae Cipta Utama Damayanto, Moch. Zainuri Degen E Kalay Degen E. Kalay Degen E. Kalay Degen Erasmus Kalay Delly Dominggas Paulina Matruty Dion Dollan Awayal Edi Kusmanto Elvira D Sopalauw Erick Sipahelut Eva S. Ratuluhain Fahrul Rozy Fakaubun Fella Gaspersz Frederika S Pello Frederika S Pello Frijona Fabiola Lokollo Gainau, Johana J. L. Grimaldy Rooy Latumeten Harold J.D. Waas Haruna Haruna Hehanussa, Kedswin Gerson Hiariey, Johanis Hukubun, Wiwien Gaby Huwae, Ana Yeti Imanuel Villian Trayanta Soukotta Intan Buton Irma Kesaulya Julius A. N. Masrikat Junita Supusepa Kalay, Degen E. Krisye Pasanea Latumeten, Grimaldy R Makailipessy, Marvin Mario Marlin C Wattimena Marlin Chrisye Wattimena Masrikat , Julius AN Masrikat, Julius Anthon Nicolas Matheos D Sahuleka Moksen Siwasiwan Muhadjirin Muhadjirin Muthmainnah, Karisma R. Noya, Yunita A Noya, Yunita Anganetjie Noya, Yunita Angnetjie Pasaribu, Puput Mustika Ratuluhain, Eva S. Ratuluhain, Eva Susan Retraubun, Alex S W Richard Benny Luhulima Ronald Darlly Hukubun Siahainenia, Laura Sipahelut, Erick Steven Helmus Kakiailatu, Johannis Syaranamual, Lidya Kesya Syauta, Augastio B. Tuahatu, Juliana W. Uneputty, Brian Abraham Salmon Valentine Domaris Saleky Waas, Harold J.D Waas, Harold Joppie Davido Wana Paksi, Lalu Mantigi Wattimena, Marlin C. Yulian Yudha Dwi Pamungkas Yunia Anganetjie Noya Yunita A Noya Yunita A. Noya Yunita Angnetjie Noya Yusran Abdul Gani Tuatoy Zalfa Z Buamona