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All Journal Asian Journal of Aquatic Sciences Journal of Rural and Urban Community Empowerment
Sefni Hendris
Fakultas Perikanan Dan Kelautan, Universitas Riau
Agriculture, Biological Sciences & Forestry Humanities Earth & Planetary Sciences Education Energy Environmental Science

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ASSESSMENT OF WATER QUALITY BASED ON NITRATE, PHOSPHATE, AND AMMONIA CONCENTRATIONS IN BURUK BAKUL VILLAGE, BENGKALIS, RIAU Hendris, Sefni; Yoswaty, Dessy; Nurrachmi, Irvina; Azuga, Nabila Afifah; Kambaren, Bella Billiant J Ananta; Putri, Rianti; Purbata, Ardi Gustri
Asian Journal of Aquatic Sciences Vol. 8 No. 3 (2025): December
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.8.3.391-397

Abstract

Coastal ecosystems are highly sensitive to nutrient enrichment, particularly from land-based activities and aquaculture effluents, which contribute to water quality degradation. This study evaluated the concentrations of nitrate, ammonia, and phosphate in the coastal waters of Buruk Bakul Village, Bengkalis, Riau Province, Indonesia. Water samples were collected from four representative stations in August 2025: a river estuary, a shrimp pond, a mangrove rehabilitation site, and a natural mangrove forest. The analysis was conducted using spectrophotometric methods in accordance with the Indonesian National Standards (SNI). Results indicated that nitrate concentrations ranged from 0.0822 to 0.1932 mg/L, ammonia from 0.5705 to 1.7338 mg/L, and phosphate from 0.0845 to 0.299 mg/L. All parameters exceeded the seawater quality standards for marine biota established by the Decree of the Minister of Environment No. 51/2004, indicating a significant anthropogenic influence. The river estuary recorded the highest nitrate and phosphate levels, reflecting inputs from land runoff and domestic waste, while ammonia peaked in the shrimp pond due to aquaculture discharge. Nutrient levels in mangrove-associated stations were lower but still above the threshold, indicating that mangrove ecosystems provide some capacity to retain and transform nutrients, although insufficient for full remediation. Elevated nutrient concentrations pose ecological risks, such as eutrophication and algal blooms, which may disrupt biodiversity and fisheries productivity. This study emphasizes the urgency of improving aquaculture waste management, reducing land-derived nutrient loading, and strengthening mangrove conservation and rehabilitation as integrated strategies to sustain coastal ecosystem health in Buruk Bakul and similar regions. These findings provide a baseline for nutrient management and coastal rehabilitation strategies in western Indonesian waters
ASSESSMENT OF WATER QUALITY BASED ON NITRATE, PHOSPHATE, AND AMMONIA CONCENTRATIONS IN BURUK BAKUL VILLAGE, BENGKALIS, RIAU Hendris, Sefni; Yoswaty, Dessy; Nurrachmi, Irvina; Azuga, Nabila Afifah; Kambaren, Bella Billiant J Ananta; Putri, Rianti; Purbata, Ardi Gustri
Asian Journal of Aquatic Sciences Vol. 8 No. 3 (2025): December
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.8.3.391-397

Abstract

Coastal ecosystems are highly sensitive to nutrient enrichment, particularly from land-based activities and aquaculture effluents, which contribute to water quality degradation. This study evaluated the concentrations of nitrate, ammonia, and phosphate in the coastal waters of Buruk Bakul Village, Bengkalis, Riau Province, Indonesia. Water samples were collected from four representative stations in August 2025: a river estuary, a shrimp pond, a mangrove rehabilitation site, and a natural mangrove forest. The analysis was conducted using spectrophotometric methods in accordance with the Indonesian National Standards (SNI). Results indicated that nitrate concentrations ranged from 0.0822 to 0.1932 mg/L, ammonia from 0.5705 to 1.7338 mg/L, and phosphate from 0.0845 to 0.299 mg/L. All parameters exceeded the seawater quality standards for marine biota established by the Decree of the Minister of Environment No. 51/2004, indicating a significant anthropogenic influence. The river estuary recorded the highest nitrate and phosphate levels, reflecting inputs from land runoff and domestic waste, while ammonia peaked in the shrimp pond due to aquaculture discharge. Nutrient levels in mangrove-associated stations were lower but still above the threshold, indicating that mangrove ecosystems provide some capacity to retain and transform nutrients, although insufficient for full remediation. Elevated nutrient concentrations pose ecological risks, such as eutrophication and algal blooms, which may disrupt biodiversity and fisheries productivity. This study emphasizes the urgency of improving aquaculture waste management, reducing land-derived nutrient loading, and strengthening mangrove conservation and rehabilitation as integrated strategies to sustain coastal ecosystem health in Buruk Bakul and similar regions. These findings provide a baseline for nutrient management and coastal rehabilitation strategies in western Indonesian waters
Pemberdayaan Ibu-Ibu PKK RW 12 Kel. Tangkerang Labuai, Kec. Bukit Raya, Pekanbaru Melalui Inovasi Pengolahan Kerupuk Nasi dengan Penambahan Udang Rebon (Mysis rrelicta) sebagai Upaya Peningkatan Ekonomi Rumah Tangga Irvina Nurrachmi; Bintal Amin; Nursyirwani Nursyirwani; Ummi Mardhiah Batubara; Sefni Hendris; Ilham Ilahi; Nabila Afifah Azuga
Journal of Rural and Urban Community Empowerment Vol. 7 No. 2 (2026): April
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jruce.7.2.101-107

Abstract

Kegiatan pengabdian masyarakat ini bertujuan untuk meningkatkan keterampilan dan pemberdayaan ekonomi ibu-ibu PKK RW 12 Kelurahan Tangkerang Labuai, Kecamatan Bukit Raya, Kota Pekanbaru, melalui pelatihan pembuatan kerupuk nasi berbahan dasar nasi sisa yang diperkaya dengan udang rebon (Mysis relicta). Permasalahan utama yang dihadapi masyarakat adalah tingginya volume limbah organik rumah tangga, khususnya nasi sisa yang belum dimanfaatkan secara optimal. Melalui pelatihan ini, limbah nasi diolah menjadi produk pangan bernilai jual tinggi dan bergizi, sejalan dengan prinsip blue economy dan ekonomi sirkular. Metode kegiatan meliputi tahap persiapan, pelaksanaan pelatihan, dan evaluasi hasil. Peserta diberikan materi tentang pengelolaan limbah pangan, teknik pengolahan adonan, pengeringan, pengemasan, serta strategi pemasaran sederhana. Hasil kegiatan menunjukkan peningkatan signifikan dalam pengetahuan dan keterampilan peserta mengenai pengolahan limbah rumah tangga menjadi produk olahan bernilai ekonomi. Produk kerupuk nasi udang rebon yang dihasilkan memiliki cita rasa gurih, tekstur renyah, serta kandungan gizi yang lebih tinggi karena penambahan protein hewani dari udang rebon. Program ini tidak hanya memberikan dampak ekonomi berupa peluang usaha baru bagi ibu-ibu PKK, tetapi juga berkontribusi terhadap pengurangan limbah organik dan peningkatan kesadaran lingkungan. Kegiatan ini diharapkan dapat menjadi model pemberdayaan ekonomi berbasis komunitas yang berkelanjutan dan dapat direplikasi di wilayah lain dengan dukungan lintas sektor antara masyarakat, perguruan tinggi, dan pemerintah daerah
Co-Authors Ardi Gustri Purbata Batubara, Ummi Mardhiah Bintal Amin Dessy Yoswaty Ilham Ilahi Irvina Nurachmi Irvina Nurrachmi Kambaren, Bella Billiant J Ananta Nabila Afifah Azuga Nursyirwani Nursyirwani Putri, Rianti