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Mohammad Agung Nugraha
Program Studi Ilmu Kelautan, Fakultas Pertanian Perikanan dan Biologi, Universitas Bangka Belitung
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Environmental Science

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Potensi Eceng Gondok (Eichhornia crassipes) Sebagai Fitoremediator Limbah Cair Industri Tahu Skala Rumah Tangga Misleni Indah Purwati; Fika Dewi Pratiwi; Mohammad Agung Nugraha
Journal of Tropical Marine Science Vol 4 No 2 (2021): Journal of Tropical Marine Science
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (139.646 KB) | DOI: 10.33019/jour.trop.mar.sci.v4i2.2353

Abstract

The untreated liquid waste produced from the Tofu industry may pollute the water environment. Phytoremediation may be an alternative method to reduce the contaminant produced. For that reason, the study aimed to analyze the characteristic of tofu liquid waste and analyze the effectiveness of water hyacinth in improving tofu liquid waste quality (nitrate, pH, colour, odour) from the household-scale industry. This research used the 50 gram of water hyacinth for one litter of liquid waste in the experimental test of phytoremediation with three replication. The nitrate concentration, pH, colour and odour was analyzed before and after treatment (the day 5th, 10th and 15th). The result showed the initial characteristic of liquid waste was above the level 4 of water quality standard according to PP RI No.82 in the year 2001 (N 444 mg/l, pH 4,15, colour 1831 Pt-Co, with strong odour). The study proved that water hyacinth was potential to improve tofu liquid waste quality. Nitrate concentration decreases from initial value up to 94%, the value of pH became neutral in ranged of 7, and liquid waste became more transparent found with no strong odour after treatment. It concluded that water hyacinth has a high potential as phytoremediator. Further research should use the other design with other aquatic plant species to improve liquid waste of tofu in the household scale.
Kontaminasi Logam Berat Timbal (Pb) Dan Kadmium (Cd) Pada Sedimen Estuari Baturusa, Kota Pangkalpinang Maulinda Huzairiah; Mohammad Agung Nugraha; Aditya Pamungkas
Journal of Tropical Marine Science Vol 5 No 1 (2022): Journal of Tropical Marine Science
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (662.356 KB) | DOI: 10.33019/jour.trop.mar.sci.v5i1.2558

Abstract

The Baturusa River watershed has mining, fishing, industrial, and ship berthing activities. Activities carried out either directly or indirectly in the river can trigger the potential for pollution. Heavy metals are hazardous pollutants which, if present in large quantities, affect various aspects of the waters, both biologically and ecologically. The aim of this study was to determine the concentration of heavy metals Pb and Cd as well as the level of metal contamination of Pb and Cd (CF/ contamination factor, I-Geo/ Geoaccumulation Index) EF/ Enrichment factor) in the sediments of the Baturusa River Estuary, Pangkalpinang City. Heavy metals were analyzed by the AAS method. The concentration of Pb and Cd in the Baturusa River Estuary sediment has not exceeded the limit range based on the quality standards specified in the ISQG and PEL CCME 2002. The value of the heavy metal contamination factor (CF) of Pb found in the Baturusa Estuary sediment ranged from 0.00029–0.00042 ( CF
Penerapan blue economy dengan budidaya udang vaname (Litopenaeus vannamei) Sudirman Adibrata; Rahmad Lingga; Mohammad Agung Nugraha
Journal of Tropical Marine Science Vol 5 No 1 (2022): Journal of Tropical Marine Science
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (217.481 KB) | DOI: 10.33019/jour.trop.mar.sci.v5i1.2964

Abstract

This research was conducted from December 2021 to February 2022 in Balunijuk Village, Merawang District, Bangka Regency, Bangka Belitung Islands Province. The method used primary and secondary data which was analyzed with a qualitative descriptive approach to policy and vaname shrimp culture. The results showed that designing sustainable development must follow the vision, mission, goals, policies, strategies, programs, to the implementation of activities. One of the priority policies related to food and nutrition action plans or food security was by utilizing marine resources. Food security by utilizing resources from the sea was known as the blue economy concept. Sustainable marine development policies required political effectiveness for the benefit of communities and ecosystems. The application of the blue economy concept with vaname shrimp cultivation in biofloc tarpaulin ponds technically required the measurement of standard parameters such as dissolved oxygen (DO), ammonia (NH3), nitrite (NO2), nitrate (NO3), phosphate (PO4), TDS, brightness, depth, water temperature, salinity, and water pH. Water quality data showed that it could still be tolerated, did not exceed its carrying capacity, and was still in standard water conditions for aquaculture. The implementation of vaname shrimp cultivation in biofloc tarpaulin ponds could increase economic benefits in a sustainable manner, increase healthy products with environmentally friendly technological innovations using Probio_FmUBB probiotics, provide access to small-scale artisanal fisheries, and open market access.
Dampak Penambangan Timah di Laut Terhadap Ekosistem Terumbu Karang di Pulau Pemuja dan Malang Duyung, Kabupaten Bangka Barat, Provinsi Kepulauan Bangka Belitung Indra Ambalika Syari; Mohammad Agung Nugraha; Mu’alimah Hudatwi
Journal of Tropical Marine Science Vol 5 No 1 (2022): Journal of Tropical Marine Science
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (650.638 KB) | DOI: 10.33019/jour.trop.mar.sci.v5i1.2965

Abstract

The Province of the Bangka Belitung Islands has an ocean area of 79.9% which has the potential for fisheries and tourism as well as tin mining in the sea. This research was conducted in October 2020 in the coral reef ecosystem of Pemuja Island (near to the coastal) and Malang Duyung Coral (far to the coastal), West Bangka Regency. The method used is Line Intercept Transect (LIT). The results showed that the condition of the coral reefs on Pulau Pemuja was categorized as "damaged" with a live coral cover of 16.50% which was estimated to be due to the impact of tin mining in the sea, which was marked by a high mud cover (silt) of 48.698%. Coral Mortality Index (IMK) value of 0.75 which indicates the number of corals that died due to mud cover. The condition of coral reefs in Malang Duyung is in the "Good" category with live coral cover of 69.17%. Malang Duyung coral reefs are still affected by mining, which is indicated by the presence of a mud cover of 10.833% while the IM value of 0.15 also indicates that dead coral is still being found. The results showed that the composition of dead coral covered with is an impact of offshore tin mining. Mining locations near the coastal area have a greater impact than those far from the coastal.
Co-Authors Adibrata, Sudirman Fika Dewi Pratiwi Indra Ambalika Syari Maulinda Huzairiah Misleni Indah Purwati Mu’alimah Hudatwi Pamungkas, Aditya Rahmad Lingga