Claim Missing Document
Check
Articles

Found 15 Documents
Search

The water quality and biological indicators of estuarine and marine waters affected by shrimp farming effluents in Bireuen Regency, Aceh Izwar, Akmal; Fauza, Saniar; Muktitama, Asih Makarti; Nugrahawati, Anis; Azhar, Rossy; Putra, Dani Pratama; Hakim, Syahirman; Musarady, Yoga
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica, Vol. 12: No. 3 (December, 2025)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v12i3.24729

Abstract

Intensive whiteleg shrimp farming has the potential to degrade water quality through the accumulation of organic matter and nutrients in coastal ecosystems. This study aimed to evaluate differences in water quality between estuarine and marine waters in Bireuen Regency, Aceh, and to associate them with plankton and bacteria as ecological indicators. The research was conducted from July to August 2025 at three estuarine and three marine stations, analyzing physical, chemical, and biological parameters. Results showed that estuarine waters had higher TSS (9–16 mg/L), NH₃ (0.80 mg/L), BOD (4.6–7.1 mg/L), and COD (32–33 mg/L) than marine waters, associated with the presence of Nitzschia spp., Ceratium hirundinella, Brachionus rotundiformis, Aeromonas hydrophila, and Vibrio parahaemolyticus. In marine waters, although DO and salinity were more stable, eutrophication indicators included Noctiluca spp., copepods (Acartia, Oithona), V. alginolyticus, and Photobacterium damselae. These findings indicate that estuaries act as pollution hotspots while marine waters are also affected, emphasizing the need for ecosystem-based management of shrimp aquaculture effluents. Keywords: Estuary; Marine Waters; Plankton; Vibrio spp; Water Quality; Whiteleg Shrimp
Physicochemical and microbiota characterization of Paya Nie Ecotourism Reservoir for optimizing sustainable fisheries cultivation Dani Pratama Putra; Azhar, Rossy; Izwar, Akmal; Setianingsih, Putri Ayu
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica, Vol. 12: No. 3 (December, 2025)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v12i3.25009

Abstract

This study aims to analyze the physicochemical characteristics and microbiota communities in the Paya Nie Ecotourism Reservoir as a basis for water quality management for sustainable fisheries cultivation. Sampling was conducted at ten points representing the western, central, and eastern parts of the reservoir. Parameters measured included temperature, clarity, turbidity, pH, salinity, dissolved oxygen (DO), ammonia, phosphate, nitrate, COD, BOD, plankton density, and Escherichia coli. The results showed that most parameters were still in accordance with quality standards (PP No. 22 of 2021), especially pH (7.03–7.97), ammonia (0.001–0.028 mg/L), phosphate (2.6–3.9 mg/L), and nitrate (0.02–2.0 mg/L). However, DO levels at several stations were low (1.67–3.33 mg/L), while COD (500–926 mg/L) and BOD (1.00–2.47 mg/L) exceeded the threshold, indicating a high organic pollution load. The highest E. coli value was recorded at Station X (744.33 CFU/100 ml), indicating contamination from domestic activities. The dominant plankton species were Euglena sp. and Eudorina sp., indicating the waters are classified as productive but potentially eutrophic. The results of this study emphasize the need for waste management, cage density regulation, and routine water quality monitoring to maintain ecosystem balance and support the sustainability of fish farming in the Paya Nie Reservoir. Keywords: Microbiota; Paya Nie Reservoir; Physicochemistry; Sustainable Fisheries; Water Quality
The content of Pb and Cd in sediment and oysters in the mangrove area of Kuala Ceurape Bireuen and Udeung Village Pidie Jaya Azhar, Rossy; Husna, Asmaul; Izwar, Akmal; Nugrahawati, Anis; Putra, Dani Pratama; Kamal, Mustafa
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica, Vol. 12: No. 3 (December, 2025)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v12i3.25112

Abstract

This study aimed to identify the concentration of heavy metals, lead (Pb) and cadmium (Cd), in sediments and oysters (Bivalvia), as well as to examine their relationship with mangrove ecosystem characteristics in Kuala Ceurape (Bireuen) and Udeung Village (Pidie Jaya). Heavy metal concentrations were analyzed using the Indonesian National Standard (SNI) methods, while mangrove species identification was conducted through field vegetation surveys. The results showed that Pb concentrations in sediments ranged from 3.67–15.29 mg/kg with an average of 7.38 mg/kg in Udeung and 8.65 mg/kg in Kuala Ceurape. Cd concentrations in sediments were higher, ranging from 4.69–11.95 mg/kg (average 7.38 mg/kg) in Udeung and 3.54–11.69 mg/kg (average 8.65 mg/kg) in Kuala Ceurape. In oysters, Pb concentrations were recorded at 4.36–9.53 mg/kg in Udeung and 2.16–6.71 mg/kg in Kuala Ceurape, while Cd showed greater accumulation, reaching 17.07–18.13 mg/kg (average 12.71 mg/kg) in Udeung and 1.96–11.21 mg/kg (average 5.16 mg/kg) in Kuala Ceurape. Compared to FAO/WHO and CCME standards, Pb levels in sediments remained below the threshold, but Pb and Cd in oysters and Cd in sediments exceeded safe limits. Vegetation identification indicated the dominance of Rhizophora apiculata, which plays an important role in heavy metal trapping. These findings suggest that mangrove ecosystems function as natural filters of heavy metals, yet bioaccumulation in edible biota such as oysters may pose potential health risks to coastal communities. Keywords: Bioaccumulation; Cd; Mangrove; Oyster; Pb; Sediment
Analisis distribusi ukuran butiran sedimen pada beberapa lahan mangrove di Aceh Besar Rossy Azhar
Arwana: Jurnal Ilmiah Program Studi Perairan Vol 4 No 2: November 2022
Publisher : Program Studi Akuakultur, Fakultas Pertanian, Universitas Almuslim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51179/jipsbp.v4i2.1636

Abstract

Distribusi sedimentasi dapat terjadi akibat erosi sungai dan alih fungsi lahan mangrove. Beberapa kawasan yang memiliki lahan mangrove adalah Gampong Neuhen, Lamreh, dan Beureneut. Ketiga lokasi ini memiliki aliran sungai yang akan membawa sedimen terperangkap pada lahan mangrove. Tujuan dari penelitian ini untuk mengetahui pola distribusi sedimen serta kerapatan mangrove dengan parameter grafikal. Penelitian ini menggunakan metode purposive sampling, untuk pengambilan data sedimen menggunakan metode coring dengan dua substasiun yaitu dekat laut dan dekat darat yang masing-masing memiliki tiga plot. Untuk pengambilan data mangrove menggunakan metode transek kuadrat. Berdasarkan hasil analisis distribusi ukuran butir sedimen diperoleh persentase berat sedimen dengan dua fraksi yaitu pasir dan lumpur. Pada kawasan dekat laut dinominasi oleh sedimen kasar (pasir), pada kawasan darat dinominasi sedimen halus (lumpur atau lanau) akibat semakin melemahnya arus. Kerapatan mangrove juga berpengaruh terhadap distribusi sedimen, semakin tinggi kerapatan mangrove semakin halus ukuran butir sedimen. Nilai Mz berkisar 1,76 hingga 2,79, nilai sorting berkisar antara mederate hingga extemely poor. Nilai Sk tergolong negatif skewed, nilai kurtosis berkisar antara 0,66 hingga 2,72. Kerapatan mangrove didominasi jenis Rhizophora sp.
Community Education and Training on Biochar Production for Climate Change Mitigation and Adaptation in Arabica Coffee Cultivation Anis Nugrahawati; Syahirman Hakim; Rossy Azhar; Dani Pratama Putra; Salman Salman
ABDISAINS Vol 2 No 2 (2026): JULI
Publisher : Fakultas Sains Dan Teknologi, Universitas Muhammadiyah Sidenreng Rappang

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This community service activity aims to improve the knowledge and skills of coffee farmers in utilizing biomass waste into biochar as an effort to mitigate and adapt to climate change. The activity was carried out at the Mekar Ayu Farmers Group, one of the Arabica coffee producing farmer groups in Central Aceh Regency with 25 members. The implementation method included socialization about the concept and benefits of biochar for soil and plants, training in making biochar using agricultural waste materials (coffee skins and sawdust), and mentoring in applying biochar to coffee fields. The results of the activity showed that participants understood the function of biochar in increasing soil fertility, improving soil structure, and increasing water absorption efficiency. In addition, farmers were able to produce biochar independently using simple, environmentally friendly technology. This activity contributed to increasing the capacity of farmers in dealing with the impacts of climate change and supporting sustainable coffee farming. Keywords: Biochar, Climate Change, Arabica Coffee, Farmer Empowerment