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Growth Analysis and Identification of Viral Diseases (WSSV, IHHNV, IMNV) and AHPND in White Shrimp (Litopenaeus vannamei) Cultivation using Millennial Shrimp Farming (MSF) System Zulkisam Pramudia; Abd Rahem Faqih; Agus Fery Setiawan; M. Amenan; Andi Kurniawan
Indonesian Journal of Environment and Sustainable Development Vol. 13 No. 2 (2022): Jurnal Pembangunan dan Alam Lestari
Publisher : Postgraduate School Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpal.2022.013.02.04

Abstract

The aquaculture sector continues to be developed to support sustainable development in Indonesia. One of the efforts made to develop sustainable aquaculture in the fisheries sector is the application of sustainable technological innovations to increase aquaculture productivity. The Millennial Shrimp Farming (MSF) system for white shrimp cultivation has developed to achieve increased production that can be carried out on limited land and relatively small business capital. However, although the MSF system has been widely carried out, studies reporting on monitoring shrimp growth and viral diseases in the MSF system in Indonesia have not been widely reported. This study aims to monitor the growth of white shrimp and the presence of viral diseases during white shrimp culture using the MSF system in Indonesia. This study was conducted in 3 MSF ponds by calculating growth and identifying viral diseases, namely White Spot Syndrome Virus (WSSV), Infectious Hypodermal and Hematopoietic Necrosis Virus (IHHNV), Infectious Myo Necrosis Virus (IMNV), and Acute hepatopancreatic necrosis disease (AHPND) with using the Polymerase Chain Reaction (PCR) method. Based on the results, the growth parameters observed on the Day of Culture (DOC) 30, 37, 44, 51, 58, 65, and 72 in the three ponds had an average weight above the standard weight compared to the Indonesian Nasional Standard (SNI 01-7246-2016) regarding the production of white shrimp in ponds with intensive technology. Meanwhile, the results of identifying viral diseases (WSSV, IHHNV, IMNV) and AHPND on DOC 1, 7, 42, 66, and 72 all showed negative results. The results above indicate that the cultivation of white shrimp with the MSF method showed optimum results for growth parameters, and no viral disease was identified during cultivation. Keywords: Litopenaeus vannamei, MSF, Virus, WSSV, IHHNV, IMNV, and AHPND
Binary Biosorption of Cu(II) and Cr(VI) by Sawdust Salamah Lutfi Ni’matus; Pinem Yoga Dinarta; Andi Kurniawan
Indonesian Journal of Environment and Sustainable Development Vol. 13 No. 2 (2022): Jurnal Pembangunan dan Alam Lestari
Publisher : Postgraduate School Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpal.2022.013.02.03

Abstract

Water pollution is one of many significant environmental problems. One of the sources of pollutants that become a problem in the aquatic environment is the heavy metals Cu(II) and Cr(VI), whose presence can harm living things, including humans. Therefore, a technology is needed to overcome Cu(II) and Cr(VI) pollution. Biosorption is one of the technologies offered to overcome these problems with several advantages, namely cost-effectiveness and environmentally friendly. This study investigated the biosorption of Cu(II) and Cr(VI) using sawdust. The use of sawdust was chosen because it is easy to find and the price is affordable. This study's results indicate that sawdust can adsorb Cu(II) and Cr(VI). The optimum contact time for biosorption in this study was 5 minutes. The biosorption characteristics shown in this study matched the Langmuir adsorption model. This study shows that the biosorption of Cu(II) and Cr(VI) by sawdust occurs through physicochemical reactions, ion exchange, and electrostatic interactions. Therefore, sawdust is one of the promising biosorption agents to overcome pollution in aquatic ecosystems, especially pollution caused by Cu(II) and Cr(VI). Keywords: biosorption, aquatic ecology, cu(ii), cr(vi), sawdust, water pollution