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Journal : ILMU KELAUTAN: Indonesian Journal of Marine Sciences

Heavy Metal Contamination on Vannamei Shrimp Aquaculture in North Coast of Central Java Apresia, Fadil; Ambariyanto, Ambariyanto; Yulianto, Bambang; Payus, Carolyn Melissa
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 28, No 3 (2023): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ik.ijms.28.3.241-250

Abstract

The North Coast of Central Java receives consignments of waste containing heavy metal contamination from several sources, resulting in a decrease in water quality on the coast. Heavy metal contamination in water sources, such as Pb, Cd, and Cr that will be used in shrimp farming. The impact of Pb, Cd, and Cr can have several adverse effects, such as health risk, ecological imbalance, reduce shrimp growth and productivity, environment pollution. The research was conducted to analyze heavy metal contamination levels in ponds and vannamei shrimp yields on the northern coast of Central Java. The method involved collecting shrimp, water, and sediment samples at nine different locations (Dampyak; Suradadi; Kedongkelor; Danasari; Nyamplungsari; Pesantren; Depok; Wonokerto; Degayu). Heavy metal data were analyzed with SPSS. The mean lead concentrations were 0.52+0.19 mg.kg-1 in sediment, 0.66+0.11 mg.kg-1 in water, and 0.86+0.18 mg.kg-1 in shrimp. Cadmium levels were measured in soil (0.028+0.03 mg.kg-1), water (0.027+0.021 mg.kg-1), and shrimp (0.011+0.004 mg.kg-1). The mean chromium concentrations were 0.51+0.25 mg.kg-1 in sediment, 0.93+0.40 mg.kg-1 in water, and 0.95+0.11 mg.kg-1 in shrimp. Based on the calculation of the average BAF x > 1.0, vannamei shrimp on the northern coast of Central Java have the capability of becoming bioaccumulation and bioindicators. The consumption of vannamei shrimp for 70 years has a lifetime risk of developing cancer due to the LCR value of x > 10-6 on the northern coast of Central Java.
DNA Barcoding of Anchovy in Tuban Regency as Database of Indonesian Marine Genetic Diversity Joesidawati, Marita Ika; Nursalim, Nining; Kholilah, Nenik; Kurniasih, Eka Maya; Cahyani, Ni Kadek Dita; Ambariyanto, Ambariyanto
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 28, No 4 (2023): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ik.ijms.28.4.383-391

Abstract

Anchovy is the main catch and the primary consumption of coastal communities in Indonesia, and its production shows an increase of more than 10% in 2021. Tuban district, in East Java, Indonesia is part of the WPP 712 (Wilayah Pengelolaan Perikanan or Fisheries Management Area) and highly produces anchovies’ fisheries. Anchovy has a small size, making it difficult to identify morphologically. This study aimed to genetically identify anchovy samples obtained from North Java (Tuban) waters. Molecular identification was conducted by utilizing Cytochrome Oxidase Subunit I (COI) gene using jg-HCO and jg-LCO primers. This study observed 12 individual samples with 623 base pair sequence length. Five species were obtained, namely four species of anchovies (Encrasicholina heteroloba, Encrasicholina punctifer, Stolephorus waitei, and Stolephorus insularis) and one species of sardines (Dussumieria elopsoides) with 99.84-100% similarity to NCBI sequences data. Anchovies typically have a streamlined body with a slightly compressed shape. Anchovies have cycloid scales, which are smooth-edged and relatively small, ranging from a few centimeters to around 20 centimeters in length. Some of the genus from the Anchovy group are Encrasicholina and Stolephorus. The phylogenetic tree reconstruction leads into four clades with a genetic distance between clades of 17,9-24,5 %. This research provides methods and data on the genetic diversity of anchovies taxa caught in Tuban, East Java. The findings are expected to support promoting new standards for healthier and more sustainable anchovy stocks in the country. Overall, this study contributes to providing valuable insights for fisheries management and conservation efforts in Indonesia.