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Journal : Jurnal Sumberdaya Akuatik Indopasifik

Mikroplastik dalam Kerang Darah (Anadara granosa) pada Ukuran yang Berbeda di Perairan Kwanyar Kabupaten Bangkalan Madura Nesi Wahyu Listiani; Insafitri Insafitri; Wahyu Andy Nugraha
Jurnal Sumberdaya Akuatik Indopasifik Vol 5 No 2 (2021): Mei
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46252/jsai-fpik-unipa.2021.Vol.5.No.2.156

Abstract

Microplastic is plastic waste that has a small size of less than 5 mm. Microplastic itself has a dangerous impact due to the nature of plastic which is difficult to decompose. The purpose of this study is to determine the shape, average number and highest weight, total amount, type of microplastic polymer and comparison between sizes of Anadara granosa in locations near mangroves, river estuaries and settlements in the waters of Kwanyar Bangkalan, Madura. Microplastic analysis of Anadara granosa samples was carried out using a 10% KOH solution as much as 3x the weight of the sample. Identification of microplastics in all samples to determine their shape using a stereo microscope, followed by counting the number and weight. The predominant form of microplastic is fiber. The highest average number of microplastics in Anadara granosa was found at location near the mangrove ecosystem, namely 23.9 particles / individual at <3 cm in size and 26.8 particles / individual for shells >3 cm in size. There was a significant difference in the number of microplastics at different sizes of shells. The types of red, black and blue fiber polymers are Poly (Ethylene Terephthalate), blue film is Polypropylene and blue fragment is Poly(Ethylene Terephthalate).
DNA Barcoding dan Filogeni Molekukuler Belangkas Tachypleus (Horseshoe crab) dari Pulau Madura, Jawa Timur, Indonesia Rafsanjani, Deni; Nugraha, Wahyu Andy; Insafitri, Insafitri
Jurnal Sumberdaya Akuatik Indopasifik Vol 8 No 3 (2024): Agustus
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46252/jsai-fpik-unipa.2024.Vol.8.No.3.395

Abstract

Horseshoe crab is a marine animal that is often found in Madura waters. Horseshoe crab is Indonesia's marine biodiversity that has not been widely exploited. This aquatic animal is also called a living fossil, which means it has been alive since ancient times. Information regarding the genetic and phylogenetic structure of Horseshoe crab in the Madura area is still rarely known. Therefore, it is necessary to study to reveal the type of Horseshoe crab using the DNA barcoding method and molecular phylogeny. This research uses COI as a molecular marker, using the PCR method. With DNA barcoding, it only requires very few/small specimens but is able to document the diversity of taxonomic groups that are not yet known or come from areas that have never been identified, and is able to reveal new variations/new diversity in species that were previously classified as only one species. The results showed that the Tachypleus samples were 100% close to Tachypleus gigas. The phylogenetic results of samples from the island of Madura are in the same group as Tachypleus gigas from other locations.