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All Journal JURNAL SAINS DAN TEKNOLOGI PERIKANAN (JIKAN) Jurnal Pepadu
Zaenal Abidin
Program Studi Budidaya Perairan, Universitas Mataram
Religion Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Economics, Econometrics & Finance Engineering Environmental Science Social Sciences

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Analysis of Heavy Metal Pb in Blood Cockle in Lembar Waters, West Lombok Thoy Batun Citra Rahmadani; Zaenal Abidin; Wastu Ayu Diamahesa; Damai Diniariwisan; Alis Mukhlis
Jurnal Sains dan Teknologi Perikanan Vol 6 No 1 (2026): APRIL
Publisher : Fisheries Science Study Program, Faculty of Science and Technology, Muhammadiyah University of Sidenreng Rappang.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55678/jikan.v6i1.2700

Abstract

Heavy metal present in marine water can affect aquatic organisms, particularly bivalves that function as filter feeders and therefore have a high potential to accumulate heavy metals in their bodies. Blood cockle (Anadara granosa) is one of the marine organisms commonly found in the waters of West Lombok, especially in the Lembar area, which is influenced by port activities and coastal community activities. This study aimed to analyze the concentration of lead (Pb) in blood cockles and sediments in the waters around Lembar, West Lombok, and to determine the safe consumption limit of cockles for the community. Samples of blood cockles and sediments were collected from three observation stations in Lembar waters. Each sample was collected in triplicate as replicates. The Pb concentration was analyzed using Atomic Absorption Spectrophotometry (AAS) methods and the results were compared with applicable quality standards. The results showed that the Pb concentration in blood cockles ranged from 0.043–0.051 mg/kg with an average value of 0.047 mg/kg. These values are below the maximum limit set by the government, which is 0.1 mg/kg. Meanwhile, Pb concentrations in sediments ranged from 0.887–1.32 mg/kg and were still below the sediment quality standard of 25 mg/kg. The calculation of the safe consumption limit indicated that the Maximum Tolerable Intake (MTI) of blood cockles ranged from 29-35 kg/week for adults with an average body weight of 60 kg, indicating that blood cockles from the Lembar waters are still safe for consumption.
PEMANFAATAN LIMBAH KULIT UDANG VANNAMEI MENJADI PUPUK ORGANIK CAIR SEBAGAI UPAYA PENGELOLAAN LIMBAH TAMBAK DI DESA LABUHAN LOMBOK Hidayat Hidayat; Rizky Ananda; Manda Eka; Kurniawan Kurniawan; Alwi Saputra; Yuliana Asri; Awan Darmawan; Zaenal Abidin
Jurnal Pepadu Vol 7 No 2 (2026): Jurnal Pepadu
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/pepadu.v7i2.11020

Abstract

Whiteleg shrimp farming in Labuhan Lombok Village, Pringgabaya District, East Lombok Regency, contributes significantly to the local economy but also generates shrimp shell waste that has not been optimally utilized. The accumulation of this waste may cause environmental problems, particularly unpleasant odours and an increased fly population around pond areas. This community service program aimed to utilize whiteleg shrimp shell waste as liquid organic fertilizer (LOF) while improving community knowledge of sustainable aquaculture waste management. The program involved field observation, coordination with pond owners, preparation of tools and materials, LOF production, education, and program evaluation. The fertilizer was produced using 500 g of shrimp shell waste, 100 mL of EM4 Agriculture, 100 mL of molasses, and 5 L of rice-washing water, followed by fermentation for 10–15 days. Educational activities were delivered to 10 pond workers through presentations, demonstrations of LOF production, and discussions. Evaluation was conducted using pre-tests and post-tests, product quality observations, participant participation levels, and program sustainability potential. The results showed that the LOF was successfully produced with a yellowish-brown colour, a characteristic fermentation aroma, and no foul odour. The educational activity improved participants’ understanding of shrimp shell waste management, as reflected in the post-activity evaluation results and active participation during the program. The application of LOF to chili plants also showed improved growth responses, indicated by broader leaves, stronger stems, and healthier plant appearance. This program demonstrates that converting whiteleg shrimp shell waste into liquid organic fertilizer is an environmentally friendly and value-added alternative for aquaculture waste management that may support sustainable agriculture in Labuhan Lombok Village.
Co-Authors Alwi Saputra Awan Darmawan Damai Diniariwisan Diamahesa, Wastu Ayu Hidayat Hidayat Kurniawan Kurniawan Manda Eka Rizky Ananda Thoy Batun Citra Rahmadani Yuliana Asri