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Distribusi Klorofil-A Menggunakan Citra Satelit Landsat 8 Di Muara Sungai Banyuasin, Sumatera Selatan Isnaini, Isnaini; Diansyah, Gusti; Ulqodry, Tengku Zia; Surbakti, Heron; Arsyei, Laksamana Fachryzal; Aryawati, Riris
Buletin Oseanografi Marina Vol 13, No 3 (2024): Buletin Oseanografi Marina
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/buloma.v13i3.61216

Perairan Muara Sungai Banyuasin merupakan daerah yang sangat dinamis dan biasa dimanfaatkan untuk aktivitas masyarakat sekitar, sehingga mempengaruhi perubahan kondisi perairan. Klorofil-a merupakan salah satu parameter produktivitas primer yang dapat mengetahui kualitas perairan. Teknologi penginderaan jauh dapat mempermudah dalam mendapatkan distribusi dan konsentrasi klorofil-a di perairan. Tujuan penelitian ini untuk menguji akurasi citra Landsat-8 yang sesuai dalam mengekstraksi konsentrasi klorofil-a di perairan Muara Sungai Banyuasin menggunakan algoritma Wibowo et al. (1994) dan Pentury (1997), mengetahui pola sebaran secara spasial klorofil-a pada data lapangan dan data citra di Muara Sungai Banyuasin, serta menganalisis distribusi klorofil-a pada tiap musim tahun 2022 di Muara Sungai Banyuasin. Penelitian ini telah dilaksanakan pada bulan Oktober – November 2022. Hasil penelitian ini menunjukkan uji validasi antara kedua algoritma didapatkan algortima Wibowo et al. (1994) dari persamaan regresi linear (y = 1,4691x - 1,2669) yang lebih sesuai dengan R2 0,918 dan RMSE terendah yaitu 0,0924. Pola sebaran konsentrasi klorofil-a di Muara Sungai Banyuasin antara data lapangan dengan data citra menunjukkan nilai yang tidak jauh berbeda, dengan nilai pada insitu berkisar 2,22–3,35 mg/m3 sedangkan data citra 1,68–3,79 mg/m3. Rata-rata konsentrasi pada musim barat, peralihan I, timur, dan peralihan II pada tahun 2022 sebesar 2,41–3,71 mg/m3. The Banyuasin River Estuary are very dynamic area and usually used for the activities of the surrounding community, thereby affecting changes in water conditions. Chlorophyll-a is one of the primary productivity parameters that can determine water quality. Remote sensing technology can make it easier to get the distribution and concentration of chlorophyll-a in waters. The purpose of this study was to test the accuracy of Landsat-8 imagery that is suitable for extracting chlorophyll-a concentrations in the Banyuasin River Estuary waters using the Wibowo et al. algorithm. (1994) and Pentury (1997), determined the spatial distribution pattern of chlorophyll-a in field data and image data in the Banyuasin River Estuary, and analyzed the distribution of chlorophyll-a in each season in 2022 in the Banyuasin River Estuary. This research was held in October to November 2022. The results of this study showed that the validation test between the two algorithms was obtained by the Wibowo et al. (1994) from the linear regression equation (y = 1,4691x-1,2669) which is more suitable with the R2 of 0.918 and the lowest RMSE of 0,0924. The distribution pattern of chlorophyll-a concentrations in the Banyuasin River Estuary between field data and image data shows values that are not much different, with insitu values ranging from 2.22–3.35 mg/m3 while image data is 1,68–3,79 mg/m3 . The average concentration in the west season, transition I, east, and transition II in 2022 is 2,41–3,71 mg/m3.

Konsentrasi Klorofil-a di Muara Upang Sumatera Selatan Riris Aryawati; Gusti Diansyah; Melki Melki; Tengku Zia Ulqodry; Isnaini Isnaini; Heron Surbakti
Indonesian Journal of Oceanography Vol 6, No 3 (2024): Indonesian Journal of Oceanography
Publisher : University of Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijoce.v6i3.24295

Muara Sungai Upang merupakan salah satu muara yang terletak di pesisir Sumatera Selatan. Muara sungai banyak menerima masukan bahan organik dari lingkungan di sekitarnya. Penelitian ini bertujuan untuk menganalisis konsentrasi klorofil-a yang dapat digunakan untuk mengetahui status kesuburan di Perairan Muara Sungai Upang. Penelitian ini dilaksanakan pada bulan Februari dan Agustus 2020. Pengambilan sampel air dan pengukuran parameter ditentukan secara purposive sampling method. Analisis klorofil-a dilakukan dengan metode spektrofotometri. Konsentrasi klorofil-a dan parameter lingkungan perairan ditampilkan dalam bentuk tabel dan grafik. Data konsentrasi klorofil-a selanjutnya dianalisis untuk melihat kesuburan perairannya. Hasil penelitian menunjukkan bahwa konsentrasi klorofil-a di perairan Muara Sungai Upang tergolong oligotrofik dengan rata-rata 1,04 mg/m3 pada bulan Februari dan tergolong mesotrofik dengan rata-rata 6,63 mg/m3 pada bulan Agustus. Konsentrasi klorofil-a di perairan Muara Sungai Upang cenderung tinggi pada daerah bagian muara menuju perairan laut dan lebih rendah di daerah sungai.

Toksisitas Ekstrak Daun mangrove Rhizophora stylosa dari Pulau Maspari Sumatera Selatan Muhtadi, Muhtadi; Ulqodry, Tengku Zia; Rozirwan, Rozirwan; Sarno, Sarno; Aryawati, Riris
Journal of Tropical Marine Science Vol 8 No 1 (2025): Journal of Tropical Marine Science (on going)
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jour.trop.mar.sci.v8i1.5679

The leaves of R. stylosa are a potential source of bioactive compounds for health and pharmacology. The composition of bioactive compounds in the leaves can be influenced by the ecological conditions and geographical location of this small island. This study aims to evaluate the toxicity and composition of bioactive compounds that are toxic in mangrove leaf extracts of R. stylosa from Maspari Island in coastal South Sumatra. A total of 1 kg of R. stylosa leaf samples were taken from Maspari Island then washed thoroughly to remove dirt, cut into small pieces, and dried in the sun using the indirect sunlight method covered with black cloth. The dried leaf samples were then pulverized into powder, and as much as 100 grams of fine powder was macerated with 96% ethanol solvent in a ratio of 1:10 (b/v). The maceration process was carried out for 1 x 24 hours, then the maceration solution was filtered and evaporated using a rotary evaporator at 60°C to become a concentrated extract. Toxicity tests were carried out using the Brine Shrimp Lethality Test (BSLT) method, while the identification of toxic bioactive compounds was carried out through phytochemical tests, total phenol tests, and GC-MS analysis. The test results showed that the LC50 value of R. stylosa leaf extract was 393 mg/mL (moderately toxic). The total phenol content was 442.82 (gGA/g), and the bioactive compounds identified included alkaloids, flavonoids, saponins, terpenoids, and acids such as Hexadecanoic acid, methyl ester, and trans-13-Octadecenoic acid, methyl ester.

Pengaruh Metode Filtrasi Terhadap Peningkatan Kualitas Fisik Air Muara Sungsang, Banyuasin Meiyerani, Jeni; Melki, Melki; Widjajanti, Hary; Rozirwan, Rozirwan; Aryawati, Riris
Journal of Tropical Marine Science Vol 8 No 1 (2025): Journal of Tropical Marine Science (on going)
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jour.trop.mar.sci.v8i1.5680

Water quality in the form of turbidity, colour, odour, taste and suspended residue are significant issues in Sungsang Banyuasin. The filter utilizes a filtration method to remove solid particles and contaminants. The research site consists of Sungsang, Sungsang II, and Sungsang III areas. The purpose of this study was to determine the water quality in the form of colour, taste, odour, turbidity, suspended residue, and salinity, as well as the ability of the filter to overcome water quality. Filtration consists of sedimentation, filter membranes, and filter media consisting of zeolite, silica, anthracite, ferrolite, activated carbon, and bioring. Water quality measurements used organoleptic to determine odour and taste, handrefractometer to measure salinity, direct reading to measure suspended residue, and spectrophotometry to measure colour and turbidity. The breech water was odourless and tasteless, and the suspended residue value ranged from 17-19 mg/L below the quality standard of 50 mg/L. Colour and turbidity values are greater than 50 on their respective scales and salinity values range from 11-13 ppt. The filtration process successfully reduced the values of suspended residue, colour, turbidity, and salinity.

Diseminasi Budidaya Biota Laut sebagai Upaya Peningkatan Pendapatan Masyarakat di Kabupaten Banyuasin, Sumatera Selatan Aryawati, Riris; Ulqodri, Tengku Zia; Hendri, Muhammad; Purwiyanto, Anna Ida Sunaryo
Agrokreatif: Jurnal Ilmiah Pengabdian kepada Masyarakat Vol. 11 No. 1 (2025): Agrokreatif Jurnal Ilmiah Pengabdian kepada Masyarakat
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/agrokreatif.11.1.70-81

This community service activity was designed to address the economic challenges faced by fishermen in Sungsang II Village, Banyuasin II Regency, South Sumatra Province. Fishermen are often disrupted by weather conditions, such as the west monsoon or rainy season, which limit fishing activities and negatively impact their income. This program involved 48 fishermen and two partners, intending to increase the knowledge and creativity of the participants regarding alternative fisheries. The presentation covered aquaculture knowledge and the various organisms involved in it. In-depth explanations were also provided on silvofishery and aquaponics methods as alternatives to enhance income. Additionally, this activity highlighted potential local organisms that could serve as cultivation species. The program was carried out in several stages: preparation, implementation, monitoring, and evaluation. The evaluation was conducted to assess the success of the dissemination based on participants’ enthusiasm and the increase in knowledge gained. The results indicated that the program successfully achieved its intended objectives, evidenced by the participants' enthusiasm and a 45% increase in their understanding. However, the skepticism of some participants and limited capital for cultivation posed challenges to the dissemination process. The community's interest in and understanding of the introduced cultivation methods form the basis for the future, particularly focusing on silvofishery and aquaponics techniques. Recommendations for applying these cultivation methods will be formulated as follow-up steps to ensure the sustainability and positive impact of this initiative. Through this approach, it is hoped that the community can attain greater economic stability and enhanced environmental sustainability.

Carbon Stock and Potential for Carbon Absorption by Mangrove Forests on Maspari Island: The Outermost Small Island in South Sumatra Ulqodry, Tengku Zia; Raihan, Muhammad; Muhtadi; Sarno; Hendri, Muhammad; Rezi Apri; Putri, Wike Ayu Eka; Aryawati, Riris
Jurnal Sylva Lestari Vol. 13 No. 2 (2025): May
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v13i2.1095

Maspari Island is the only small outermost island located in the southern part of Bangka Strait, included in the coastal area of Ogan Komering Ilir Regency, South Sumatra. The island harbors a mangrove ecosystem that is believed to play a significant role in climate change mitigation through carbon storage. This study aims to identify mangrove species and measure carbon stock estimates in upper-stand biomass, lower-stand/root biomass, and sediment. Identification of mangrove species using a vegetation analysis approach. Transect plots measuring 10 m × 10 m were parallel to the coastline at 6 observation station points. The diameter of vegetation at the tree and sapling levels was measured at a height of 1.3 m from the ground surface. Carbon stock estimates were calculated using allometric equations and sediment carbon analysis methods. The results identified seven mangrove species: Avicennia marina, Bruguiera sexangula, Ceriops tagal, Excoecaria agallocha, Rhizophora apiculata, Rhizophora stylosa, and Sonneratia alba. Estimated carbon stocks of mangrove stands at all stations reached 3,443.42 tC/ha, with an average of 573.90 tC/ha, while carbon stocks in roots amounted to 862.96 tC/ha, with an average of 143.83 tC/ha. The total estimated carbon stock of mangrove sediment at all stations was 240.71 tC/ha, with an average of 40.12 MgC/ha. Sonneratia alba provided the highest carbon absorption, reaching 3,059 tC/ha for the upper stand and 697.80 tC/ha for the lower stand. Considering the contribution of the carbon storage potential in Maspari Island, this study suggests extending the investigation of the mangrove carbon fixation in other small islands in Indonesia, especially for the S. alba species. Keywords: carbon stock, mangrove, Maspari Island, sediment, carbon stock, Sonneratia alba

Copper and Lead Contamination in Sediment and Benthic Ecosystems of Sembilang National Park’s Coastal Region, South Sumatra Rozirwan; Ananta, Dio Alif; Khotimah, Nadila Nur; Putri, Wike Ayu Eka; Fauziyah; Dianysah, Gusti; Siregar, Yusni Ikhwan; Ramses; Isnaini; Melki; Aryawati, Riris; Agustriani, Fitri; Nugroho, Redho Yoga
Science and Technology Indonesia Vol. 10 No. 3 (2025): July
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2025.10.3.866-876

Littoral zone often face environmental pressure due to anthropogenic activities, which can impact the quality of their ecosystem. This study analyzes the concentrations of copper (Cu) and lead (Pb) in sediments and benthic (Anadara granosa and Cerithidea cingulata). Sampling procedures were implemented during September 2022 across the aquatic habitats of Sembilang National Park, in South Sumatra Province, using the purposive sampling method. Sediment grain size and substrate type were analyzed using Shepard’s triangle. Metal detection using a spectrophotometric method based on atomic absorption. The results showed that the sediment fraction mostly consisted of clay, ranging from 92.03% to 94%. Cu concentrations in the sediment ranged from 5.01±0.017 to 5.71±0 mg/kg, while Pb concentrations ranged from 10.5±0.195 to 11.51±0.395 mg/kg. In the benthic, Cu concentrations ranged from 0.0037±0.00005773 to 0.0147±0.00000346 mg/kg, and Pb concentrations ranged from 0.0001±0.000227 to 0.005±0 mg/kg. According to the statistical evaluation testing via independent sample t-test showed that heavy metals differed significantly (p <0.05) between sediment and benthic compartments. These results show that the environmental quality in Sembilang National Park is still comparatively well maintained and within current quality requirements, despite certain activities that have the potential to pollute the environment. To guarantee the long-term viability of this area, it is advised that environmental quality be frequently monitored as a mitigation action.

Utilization of Google Earth Engine and DSAS to Monitor Coastal Change in the Banyuasin Estuary Surbakti, Heron; Salsabilah, Raisyah; Aryawati, Riris; Isnaini; Sitepu, Robinson
Jurnal Penelitian Pendidikan IPA Vol 11 No 6 (2025): June
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i6.10922

This study examines shoreline dynamics in the Banyuasin Estuary, South Sumatra, Indonesia, by integrating multi-decadal satellite imagery (1989-2019) with field-based sedimentation measurements. The research employs Google Earth Engine (GEE) for satellite data processing, FES 2014 tidal corrections to address tidal variations, and the Digital Shoreline Analysis System (DSAS) for precise shoreline change analysis. The primary objective is to comprehensively understand coastline shifts and sediment deposition in stabilising coastal zones. The findings reveal significant shoreline accretion, with net accretion of 2,012 hectares and prominent shoreline advancements at Anakan Island (2,012.33 meters, 118.98 meters/year), while regions such as Sembilang National Park and southern Payung Island exhibited notable erosion (322.71 meters, 10.8 meters/year). The Banyuasin River estuary shifted from notable to extreme accretion phases, contrasting with the more stable shoreline dynamics in the Musi River estuary, where accretion remained stable to intense. The integrated methodology, combining GEE, tidal corrections, and DSAS, offers an innovative approach to monitoring shoreline changes. These findings provide valuable insights for developing sustainable coastal management strategies, particularly in areas facing the dual challenges of climate change and human-induced pressures.

Toksisitas Ekstrak Daun mangrove Rhizophora stylosa dari Pulau Maspari Sumatera Selatan Muhtadi, Muhtadi; Ulqodry, Tengku Zia; Rozirwan, Rozirwan; Sarno, Sarno; Aryawati, Riris
Journal of Tropical Marine Science Vol 8 No 1 (2025): Journal of Tropical Marine Science (on going)
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jour.trop.mar.sci.v8i1.5679

The leaves of R. stylosa are a potential source of bioactive compounds for health and pharmacology. The composition of bioactive compounds in the leaves can be influenced by the ecological conditions and geographical location of this small island. This study aims to evaluate the toxicity and composition of bioactive compounds that are toxic in mangrove leaf extracts of R. stylosa from Maspari Island in coastal South Sumatra. A total of 1 kg of R. stylosa leaf samples were taken from Maspari Island then washed thoroughly to remove dirt, cut into small pieces, and dried in the sun using the indirect sunlight method covered with black cloth. The dried leaf samples were then pulverized into powder, and as much as 100 grams of fine powder was macerated with 96% ethanol solvent in a ratio of 1:10 (b/v). The maceration process was carried out for 1 x 24 hours, then the maceration solution was filtered and evaporated using a rotary evaporator at 60°C to become a concentrated extract. Toxicity tests were carried out using the Brine Shrimp Lethality Test (BSLT) method, while the identification of toxic bioactive compounds was carried out through phytochemical tests, total phenol tests, and GC-MS analysis. The test results showed that the LC50 value of R. stylosa leaf extract was 393 mg/mL (moderately toxic). The total phenol content was 442.82 (gGA/g), and the bioactive compounds identified included alkaloids, flavonoids, saponins, terpenoids, and acids such as Hexadecanoic acid, methyl ester, and trans-13-Octadecenoic acid, methyl ester.

Pengaruh Metode Filtrasi Terhadap Peningkatan Kualitas Fisik Air Muara Sungsang, Banyuasin Meiyerani, Jeni; Melki, Melki; Widjajanti, Hary; Rozirwan, Rozirwan; Aryawati, Riris
Journal of Tropical Marine Science Vol 8 No 1 (2025): Journal of Tropical Marine Science (on going)
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jour.trop.mar.sci.v8i1.5680

Water quality in the form of turbidity, colour, odour, taste and suspended residue are significant issues in Sungsang Banyuasin. The filter utilizes a filtration method to remove solid particles and contaminants. The research site consists of Sungsang, Sungsang II, and Sungsang III areas. The purpose of this study was to determine the water quality in the form of colour, taste, odour, turbidity, suspended residue, and salinity, as well as the ability of the filter to overcome water quality. Filtration consists of sedimentation, filter membranes, and filter media consisting of zeolite, silica, anthracite, ferrolite, activated carbon, and bioring. Water quality measurements used organoleptic to determine odour and taste, handrefractometer to measure salinity, direct reading to measure suspended residue, and spectrophotometry to measure colour and turbidity. The breech water was odourless and tasteless, and the suspended residue value ranged from 17-19 mg/L below the quality standard of 50 mg/L. Colour and turbidity values are greater than 50 on their respective scales and salinity values range from 11-13 ppt. The filtration process successfully reduced the values of suspended residue, colour, turbidity, and salinity.

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