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All Journal Jurnal Ekologi, Masyarakat dan Sains Journal of Coastal and Ocean Sciences Indonesian Journal of Oceanography Dedication : Jurnal Pengabdian Masyarakat Jurnal Kelautan dan Perikanan Indonesia
Sari, Ratna Juita
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Earth & Planetary Sciences Environmental Science Immunology & microbiology Physics Social Sciences Veterinary Other

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Distribution of Sea Surface Temperature and Salinity in the Karimata Strait Yuliardi, Amir Yarkhasy; Firdaus, Randi; Heltria, Septy; Prayogo, Luhur Moekti; Nugroho, Agung Tri; Rahmalia, Diah Ayu; Sari, Ratna Juita
Journal of Coastal and Ocean Sciences Vol. 6 No. 1 (2025): January
Publisher : Department of Marine Science, Faculty of Fisheries and Marine Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jocos.6.1.10-15

Abstract

The Karimata Strait possesses unique characteristics influenced by its geographical location and the local, regional, and global impacts on its physical, biological, and chemical parameters, contributing to its potential as a significant fishing ground. This study aims to observe and analyze the physical oceanographic parameters, including temperature, salinity, and sea surface currents, within the Karimata Strait. The dataset comprises monthly averaged data, resulting in a single representative value for each month. Key physical parameters examined include temperature, salinity, and the horizontal (u) and vertical (v) current components. The patterns of sea surface temperature (SST) and salinity distribution in the Karimata Strait exhibit significant variations between the west and east monsoons. During the west monsoon season, the South China Sea influenced the region with lower SST and higher salinity than the Java Sea. In contrast, the east monsoon demonstrates an inverse pattern with warmer, fresher waters from the Java Sea moving towards the strait. Additionally, the horizontal distribution of these parameters highlights the critical role of sea currents in dispersing physical oceanographic characteristics within the region. These findings underscore the dynamic nature of the Karimata Strait's oceanography, influenced by seasonal monsoon shifts, water masses from adjacent seas, and freshwater inputs from rivers, crucial for understanding the broader Indonesian Throughflow (ITF) system and its implications for regional climate and marine ecosystems.
Analisis Variasi Musiman Suhu, Salinitas, dan Arus Permukaan di Perairan Madura Yuliardi, Amir Yarkhasy; Rachman, Herlambang Aulia; Sari, Ratna Juita; Rahmalia, Diah Ayu; Nugroho, Agung Tri; Prayogo, Luhur Moekti
Indonesian Journal of Oceanography Vol 6, No 4 (2024): Indonesian Journal of Oceanography
Publisher : University of Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijoce.v6i4.24477

Abstract

Perairan sekitar Pulau Madura mencakup Laut Jawa di utara dan perairan selatan yang berbatasan dengan Pulau Jawa merupakan wilayah dengan dinamika oseanografis kompleks. Penelitian ini bertujuan untuk menganalisis variasi musiman Sea Surface Temperature (SST), Sea Surface Salinity (SSS), dan arus permukaan dan mengidentifikasi pengaruh monsun dan debit sungai terhadap kondisi oseanografis selama periode 2 tahun (2019-2020). Data debit sungai diperoleh dari Seasonal Reforecasts of River Discharge dari Global Flood Awareness System, sementara data parameter fisis laut diperoleh dari Global Ocean Physics Reanalysis. Hasil penelitian menunjukkan bahwa daerah pesisir yang berbatasan dengan Laut Jawa dan perairan di selatan Pulau Madura dipengaruhi secara signifikan oleh debit sungai dan siklus musiman monsun. Debit sungai yang tinggi selama musim hujan menyebabkan penurunan salinitas di perairan khususnya di selatan Madura. SST meningkat pada musim barat dan menurun pada musim timur. Perairan selatan Madura cenderung lebih stabil dengan pola arus yang dipengaruhi oleh kondisi geografis yang lebih tertutup. Pola arus di Laut Jawa berbalik arah setiap musim, sedangkan arus di selatan Madura cenderung konstan sepanjang tahun. Penelitian ini mengungkap perbedaan dinamika oseanografis antara perairan utara dan selatan Pulau Madura, serta pentingnya interaksi antara monsun dan debit sungai dalam membentuk kondisi lingkungan laut di wilayah ini.
Distribution of Sea Surface Temperature and Salinity in the Karimata Strait Yuliardi, Amir Yarkhasy; Firdaus, Randi; Heltria, Septy; Prayogo, Luhur Moekti; Nugroho, Agung Tri; Rahmalia, Diah Ayu; Sari, Ratna Juita
Journal of Coastal and Ocean Sciences Vol. 6 No. 1 (2025): January 2025
Publisher : Department of Marine Science, Faculty of Fisheries and Marine Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jocos.6.01.10-15

Abstract

The Karimata Strait possesses unique characteristics influenced by its geographical location and the local, regional, and global impacts on its physical, biological, and chemical parameters, contributing to its potential as a significant fishing ground. This study aims to observe and analyze the physical oceanographic parameters, including temperature, salinity, and sea surface currents, within the Karimata Strait. The dataset comprises monthly averaged data, resulting in a single representative value for each month. Key physical parameters examined include temperature, salinity, and the horizontal (u) and vertical (v) current components. The patterns of sea surface temperature (SST) and salinity distribution in the Karimata Strait exhibit significant variations between the west and east monsoons. During the west monsoon season, the South China Sea influenced the region with lower SST and higher salinity than the Java Sea. In contrast, the east monsoon demonstrates an inverse pattern with warmer, fresher waters from the Java Sea moving towards the strait. Additionally, the horizontal distribution of these parameters highlights the critical role of sea currents in dispersing physical oceanographic characteristics within the region. These findings underscore the dynamic nature of the Karimata Strait's oceanography, influenced by seasonal monsoon shifts, water masses from adjacent seas, and freshwater inputs from rivers, crucial for understanding the broader Indonesian Throughflow (ITF) system and its implications for regional climate and marine ecosystems
Variasi Musiman Spasial-Vertikal Suhu dan Salinitas di Teluk Tomini dan Laut Banggai Yuliardi, Amir Yarkhasy; Napitupulu, Gandhi; Prayogo, Luhur Moekti; Rahmalia, Diah Ayu; Sari, Ratna Juita; Nugroho, Agung Tri
Jurnal Kelautan dan Perikanan Indonesia Vol 5, No 2: Agustus (2025)
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jkpi.v5i2.47474

Abstract

Teluk Tomini merupakan salah satu wilayah semi-tertutup di Indonesia yang memiliki karakteristik oseanografi kompleks akibat pengaruh sirkulasi regional dan faktor musiman. Penelitian ini bertujuan untuk menganalisis variasi musiman, spasial, dan vertikal suhu serta salinitas di Teluk Tomini sepanjang tahun 2020 dengan menggunakan data reanalisis oseanografi dari produk Copernicus Marine Environment Monitoring Service (CMEMS) yang memiliki resolusi spasial 0,083 dan 50 lapisan vertikal. Analisis dilakukan terhadap distribusi suhu dan salinitas permukaan, penampang vertikal sepanjang lintang 0 antara 120125BT, serta profil vertikal pada tiga titik pengamatan (121BT, 123BT, dan 125BT). Hasil menunjukkan bahwa suhu permukaan laut (SPL) mencapai nilai maksimum 30C pada musim peralihan I, dan minimum 28C pada musim timur. Distribusi salinitas memperlihatkan gradasi secara zonal, dengan nilai yang lebih tinggi di bagian timur (34,5 PSU) akibat intrusi massa air asin dari Laut Banda dan Laut Maluku. Secara vertikal, terdapat stratifikasi termohalin yang mencolok hingga kedalaman 100 m, dengan kolom air yang lebih homogen di wilayah timur. Arus permukaan memainkan peran penting dalam membentuk distribusi spasial parameter-parameter tersebut. Penelitian ini menegaskan pentingnya pengaruh dinamika musiman dan intrusi regional terhadap struktur termohalin di Teluk Tomini. Temuan ini memberikan dasar penting bagi pemahaman lebih lanjut mengenai proses oseanografi fisis serta implikasinya terhadap ekosistem laut dan perencanaan pengelolaan sumber daya perikanan di wilayah ini.
Pemberdayaan Kelompok Wanita Tani melalui Teknologi Budikdamber Berbasis Pakan Alternatif Dedak untuk Meningkatkan Ketahanan Pangan Keluarga Pujiyanto , M. Aris; Sari, Ratna Juita; Setyorini, Fitri Adi; herlani, tanti; hidayah, intan nur
Dedication : Jurnal Pengabdian Masyarakat Vol 9 No 2 (2025)
Publisher : LPPM Universitas PGRI Argopuro Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31537/dedication.v9i2.2583

Abstract

Program pengabdian kepada masyarakat ini dilaksanakan sebagai wujud komitmen Tri Dharma Perguruan Tinggi dalam mendukung ketahanan pangan keluarga melalui penerapan teknologi Budidaya Ikan dalam Ember (Budikdamber) berbasis pakan alternatif dedak padi pada Kelompok Wanita Tani (KWT) Kusuma Tani di Desa Sikanco, Kecamatan Nusawungu. Latar belakang program berangkat dari tingginya biaya pakan ikan yang mencapai lebih dari separuh biaya produksi serta kurangnya pemanfaatan limbah dedak padi sebagai sumber daya lokal. Tujuan kegiatan ini adalah memberdayakan KWT agar mampu mengelola budidaya ikan skala rumah tangga dengan biaya lebih efisien sekaligus meningkatkan kemandirian pangan keluarga. Metode pelaksanaan meliputi sosialisasi, pelatihan, penerapan teknologi, pendampingan intensif, serta evaluasi secara partisipatif. Hasil pelaksanaan menunjukkan peningkatan keterampilan anggota KWT dalam merakit sistem Budikdamber, memproduksi pakan dedak terfermentasi, dan mengurangi ketergantungan pada pakan komersial.
Sea Surface Temperature Trends (1993–2022) at the Central–West Java Border: Climate Change Indicator Hartono, Sugeng; Prayogo, Luhur Moekti; Nugroho, Agung Tri; Rahmalia, Diah Ayu; Sari, Ratna Juita; Yuliardi, Amir
Jurnal Ekologi, Masyarakat dan Sains Vol 6 No 2 (2025): Jul-Des 2025
Publisher : ECOTAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55448/j94d1w11

Abstract

This study analyzes the variability of sea surface temperature (SST) in the coastal waters of Cilacap and Pangandaran, South Java Sea, during the 1993–2022 period using satellite data from Marine Copernicus. The analysis covers long-term trends, interannual fluctuations, and seasonal patterns related to regional oceanographic dynamics such as ENSO and seasonal upwelling. The results show a warming trend of SST at 0.06 ± 0.02 °C per decade, indicating the influence of regional climate change. Interannual variability highlights significant cooling in 1997 (La Niña) and extreme warming in 1998 and 2010 (El Niño). Seasonal patterns reveal the highest SST from March to May during the west monsoon, and the lowest SST in August–September due to upwelling. Upwelling plays an important role in regulating sea temperatures and supporting biological productivity. These findings underscore the importance of SST monitoring for climate-adaptive marine resource management in the southern coastal region of Java.
Co-Authors Amir Yarkhasy Yuliardi Firdaus, Randi herlani, tanti Hidayah, Intan Nur Luhur Moekti Prayogo Napitupulu, Gandhi Nugroho, Agung Tri Pujiyanto , M. Aris Rachman, Herlambang Aulia Rahmalia, Diah Ayu Septy Heltria Setyorini, Fitri Adi SUGENG HARTONO, SUGENG