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Distribution of chlorophyll-a concentrations in Ombai Strait Waters using aqua-modis satellite image data Situmorang, Raymundus Putra; Gustasya, Yosy; Alamsah, Safingi; Afrisal, Muhammad; Supriyadi, Supriyadi; Sitanggang, Wanri; Ismail, Masrurah; Pramudya, Herning; Fernando, Gillang
AGRICOLA Vol 14 No 1 (2024): AGRICOLA
Publisher : Universitas Musamus, Merauke, Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35724/ag.v14i1.5924

Abstract

Chlorophyll-a in waters is one of the important factors that determines the primary productivity/fertility of waters. Chlorophyll-a measurements can be carried out in two ways, namely conventionally by direct measurements in the field and modernly by using remote sensing technology. The aim of this research is to determine variations in the distribution of chlorophyll-a in the waters of the Ombai Strait. The data used in this research is monthly level 3 climatology data from 2003–2022 from the Aqua-MODIS (Moderate-Resolution Imaging Spectroradiometer) satellite using a remote sensing and geographic information system approach. The results of this research were that the highest chlorophyll-a concentration was found in coastal areas and the lowest concentration was found in offshore waters. According to the monthly distribution of chlorophyll-a, the highest concentration was recorded in July with values ranging from 0.251-10.486 mg/m3 with an average of 0.566 mg/m3 and the lowest concentration was recorded in November with values ranging from 0.158-2.151 with an average of 0.427 mg/m3.
Sardine (Sardinella sp.) Quality Based on Organoleptic Tests in Atapupu Waters, Belu Regency, East Nusa Tenggara Ismail, Masrurah; Afrisal, Muhammad; Costa Soares, Daniel Candido Da Costa Soares; Harryes, Regil Kentaurus; Gustasya, Yosy
Jurnal IPTEKS Pemanfaatan Sumberdaya Perikanan Vol. 10 No. 1 (2023)
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/jipsp.v10i1.25125

Abstract

One of the fish handling techniques needed to maintain fish freshness is the cold chain application. Cold chain system is very important to be applied in the post-catch handling process to extend the fish rigor mortis phase. Fishermen and fishmongers are people who play an important role in maintaining fish freshness. The purpose of this study was to determine the fresh sardine organoleptic quality after catching until reaching consumers or initial selling. The method used is a survey method through on board direct fish handling activity observation conducted by fishermen and fishmongers at selling locations, as well as fish organoleptic tests using score sheets for fresh fish with observations based on transit time starting from fishing vessel after catching, collectors, fishmongers to the first consumers. Organoleptic quality measurement of sardine taken from fishmongers in Atapupu waters showed that sardine quality fitted for consumption with an organoleptic value of >7.
Peluang Emas dari Kolam Ikan Nila di Kelompok St. Petrus Lahurus Desa Fatuloti Kecamatan Lasiolat Andiewati, Suci; Siagian, Gian Asnawi; Gustasya, Yosy; Anwar, Syaeful; Nomleni, Aryok; Turnip, Gilbert; Soares, Daniel Candido Da Costa; Harryes, Regil Kentaurus; Liubana, Debora Victoria
Mestaka: Jurnal Pengabdian Kepada Masyarakat Vol. 4 No. 6 (2025): Desember 2025
Publisher : Pakis Journal Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58184/mestaka.v4i6.895

Abstract

Community Service Activities conducted by aquaculture, Faculty of Military Logistics Vocational, Republic Indonesia Defence University (RIDU) at the St. Petrus Lahurus, Fatuloti Village, Lasiolat District. This activity involved providing knowledge related to techniques, tilapia cultivation efforts, and opportunities for improving education in the fish cultivation sector to support food security. This activity involved the Belu Regency Animal Husbandry and Fisheries Service and the Tilapia Cultivation Group as a manifestation of the implementation of the Tri Dharma of Higher Education. This activity involved the distribution of feed, basic necessities, discussions on cultivation techniques, the presentation of certificates and activity documentation. The activity was interactive and received a positive response from all parties. Furthermore, this activity also provided insights into further education for young tilapia farmers who will continue their education at the Faculty of Military Logistics Vocational, RIDU. The conclusions of this activity emphasized the importance of collaboration between educational institutions, the government, and the community in optimizing local potential to improve economic and social welfare. Recommendations provided included program evaluation, increased collaboration, and further training to strengthen outcomes and ensure program sustainability. This activity increases tilapia productivity efficiently and environmentally friendly, while strengthening synergy between academia and the community for sustainable fisheries and local economic prosperity.
Identifikasi Keanekaragaman Spesies Ikan Laut di Kecamatan Kakuluk Mesak, Kabupaten Belu, Wilayah Perbatasan RI-RDTL Gustasya, Yosy; Ali Akbar, Muhammad Syaif; Kain, Maternus; Olla, Felycia Anggrainy; Situmorang, Raymundus Putra
Jurnal Pasir Laut Vol 10, No 1 (2026): Februari
Publisher : Master Program of Aquatic Resources Management, Department of Aquatic Resources, Undip

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jpl.2026.81347

Abstract

Indonesia memiliki keanekaragaman ikan yang sangat tinggi dengan jumlah sekitar 8.500 spesies ikan, atau 45% dari jumlah spesies ikan di dunia, identifikasi keanekaragaman jenis ikan penting dilakukan untuk mengetahui jenis dan jumlah ikan yang berada pada suatu daerah. Penelitian ini bertujuan untuk mengidentifikasi keanekaragaman jenis ikan di kecamatan Kakuluk Mesak daerah perbatasan RI-RDTL. Metode yang digunakan dalam penelitian ini adalah metode deskriptif bersifat wawancara dan observasi lapangan dengan subyek penelitian pedagang ikan di pasar. Dari hasil penelitian ditemukan 25 jenis ikan yang mewakili 8 ordo, 18 family, dan 22 genus dengan jumlah 1.290 ekor. Hasil analisis indeks keanekaragaman pada plot 1 yaitu pasar lakafehan memiliki tingkat keanekaragaman sedang sebesar (1,918625), indeks keanekaragaman pada plot 2 yaitu pasar atapupu memiliki tingkat keanekaragaman sedang sebesar (1,28572). Kesimpulan dari penelitian yang dilakukan yaitu keanekaragaman jenis ikan di Kecamatan Kakuluk Mesak daerah perbatasan RI-RDTL memiliki tingkat keanekaragaman sedang dengan nilai rata-rata keanekaragaman jenis ikan dengan seluruh jumlah spesies ikan yang ditemukan sebanyak 25 jenis yaitu (2,708058) yang termasuk dalam kategori sedang.
THE EFFECT OF SEA SURFACE TEMPERATURE ON SMALL PELAGIC FISH CATCHES IN WPP 573 MAULANA, GILANG; Situmorang, Raymundus Putra; Gustasya, Yosy
Jurnal Perikanan Unram Vol 16 No 1 (2026): JURNAL PERIKANAN
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jp.v16i1.1934

Abstract

Sea surface temperature (SST) is a key oceanographic parameter influencing the distribution and abundance of small pelagic fish in tropical waters. This study aims to analyze the effect of SST on small pelagic fish catches in Fisheries Management Area (FMA) 573. Catch data were obtained from the Fisheries Resource Center of Indonesia (FRCI) for the 2015–2021 period, while SST data were derived from Aqua MODIS satellite imagery with 4 km resolution, processed using Seadas 7.4 software. A simple linear regression was applied to examine the relationship between SST and fish catches. The results indicate a negative relationship, where each 1 °C increase in SST tends to reduce catches by approximately 35 thousand tons. The coefficient of determination (R²) of 0.531 shows that 53.1% of the catch variability is explained by SST, while the remaining is influenced by other factors such as primary productivity (chlorophyll-a), upwelling intensity, global climate phenomena (ENSO, IOD), and fishing pressure. These findings highlight SST as an important indicator for predicting fishing seasons in FMA 573 and emphasize the need to integrate satellite-based oceanographic data into Ecosystem-Based Fisheries Management (EBFM) to ensure sustainable fisheries in Indonesian tropical waters.