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All Journal ILMU KELAUTAN: Indonesian Journal of Marine Sciences Jurnal Kelautan Tropis Jurnal Abdi Insani Jurnal Aplikasi dan Inovasi Iptek (JASINTEK) Journal of Fisheries & Marine
Kholilah, Nenik
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Utilization of COI Marker for Species Identification and Population Delineation of White Shrimp in the Demak Waters, Indonesia Karosekali, Jasiel Junior; Kholilah, Nenik; Syam, Almay Atsiil Harits; Subagiyo, Subagiyo; Wijayanti, Diah Permata; Bachtiar, Muggi
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 31, No 1 (2026): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ik.ijms.31.1.37-48

Abstract

White shrimp is one of the largest artisanal capture fisheries commodities in Demak. The utilization of these shrimps often overlooks their species category as they are mostly white in appearance. Growing trend of shrimp fishing may affect shrimp management due to population declination to the genetic level since the genetic data are insufficient. Hence, we aim to identify and study the genetic diversity of white shrimp caught in Demak Waters to provide an overview as a reference for fishery improvement project. A random purposive sampling method was used to collect a total of 90 white shrimp specimens from four fishing grounds (Babalan, Gojoyo, Menco, and Seklenting) in the Demak Waters. Specimens were extracted using Chelex 10%, amplified using PCR, and sequenced by the Sanger method based on the mtDNA COI gene. This research revealed the presence of five species of white shrimp: Penaeus merguiensis, Fenneropenaeus penicillatus, Penaeus vannamei, Metapenaeus brevicornis, and Metapenaeus ensis. The genetic diversity studies were continued using the Penaeus merguiensis species only. The results showed 17 haplotypes with a genetic diversity (Hd) of 0.6936 and a nucleotide diversity of 0.00108, which express moderate genetic diversity. Population analysis using Analysis of Molecular Variance (AMOVA) indicated a non-significant difference between the four study populations (panmictic population) with an FST value of 0.00756 (P-value < 0.05). Based on these results, an adequate management of stock is important. For instance, an open-closed season is needed in order to sustain and reduce capture pressure on the white shrimp population in Demak waters.
Co-Authors Abd Saddam Mujib Agus Trianto Ambariyanto , Ashari, Rowi Bachtiar, Muggi Chandrika Eka Larasati, Chandrika Eka Christina Retna Handayani Diah Permata Wijayanti Eka Maya Kurniasih, Eka Maya Eko Hardianto Fitriani, Syawalina Galank Fad&#039;qul Janarkho Gigentika, Soraya Ginzel, Fanny Iriany Ita Widowati Jamal Basmal, Jamal Janarkho, Galank Fad’qul Karosekali, Jasiel Junior Kurniatami, Gabriella Tarida Lumbessy, Salnida Yuniarti Marita Ika Joesidawati Martanina, Martanina Murdin, Lalu Ferdi Alfarisi Nanda Diniarti Ni Kadek Dita Cahyani Ni Kadek Dita Cahyani, Ni Kadek Dita Nining Nursalim Norma Afiati Norma Afiati Nunik Cokrowati Nurliah Buhari Nursalim, Nining Paryono Rahman, Ibadur Retno Hartati Retno Hartati Rhojim Wahyudi Rusmin Nuryadin Sadikin Amir Sakina, Sholihati Lathifa Sapto P Putro Saptono Waspodo Sitti Hilyana Subagiyo Subagiyo Subagiyo Subagiyo Subagiyo Subagiyo Subagiyo Subagiyo SUWARTI Syam, Almay Atsiil Harits Wibowo, Marandi Eko Wora, Umbu Domu Yasir