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Journal : Jurnal Segara

MOLECULAR IDENTIFICATION OF Charybdis affinis: A NEW RECORD OF SMOOTH-SHELLED SWIMMING CRAB FROM INDONESIAN WATERS Zainuddin, Muhammad; Saputro, Suradi Wijaya; Sabdaningsih, Aninditia; Mudzakir, Abdul Kohar
Jurnal Segara Vol 20, No 2 (2025): December
Publisher : Politeknik Kelautan dan Perikanan Dumai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/segara.v20i2.20714

Abstract

This study aims to confirm the species identity of Charybdis affinis from the coastal waters of Tuban, Indonesia, using integrated morphological and molecular approaches. Specimens were examined based on morphological characteristics including carapace shape, anterolateral teeth arrangement, cheliped spination, and dorsal setation. Morphometric analysis showed carapace width ranging from 4.09–4.40 cm and length from 2.68–2.99 cm. Molecular identification was conducted using the mitochondrial cytochrome c oxidase subunit I (COI) gene. PCR amplification produced a 638 bp DNA fragment. BLAST analysis revealed 99.06% sequence identity with Charybdis affinis in GenBank with 100% query coverage, and the obtained sequence has been deposited in GenBank under accession number PV699569.1. Phylogenetic reconstruction using the Neighbor-Joining method showed that the samples clustered within the C. affinis clade and were clearly separated from closely related species. These findings confirm the first molecular record of C. affinis in Indonesian waters and demonstrate strong agreement between morphological and genetic characteristics. This study provides essential baseline information for biodiversity assessment and sustainable management of portunid crab resources.
Co-Authors - Asriyanto - Pramonowibowo - Sardiyatmo Abdul Rosyad Abdul Rosyid Adhiatma Mario Sipahutar Adhyaksa Dault Adlina, Karisma Safira Agnes Puspitasari Sudarmo Agnes Puspitasari Sudarmo Agus Hartoko Agus Santoso Agus Suherman Agustakristi, Ribka Elda Aisah Aisah Aldise Kresna Dewi Tutianvia Aliyah, Siti Himamul Aninditia Sabdaningsih Ardianti, Desi Dwi Arif Rahman Aristi Dian Purnama Fitri Ashad, Haendra Kusuma Putra Atid, Afaf Munirohq Azis Nur Bambang Bambang A Wibowo Bambang Argo Wibowo Bayu Putra Nur Wijaksono Bunasor Sanim Dersi Herka Mayu Desi Dwi Ardiati Dian Ayunita N N D Dian Ayunita NN Dewi, Dian Ayunita NN Dian Ayunita Nugraheni Nurmala Dewi Dian Ayunita Nugraheni Nurmala Dewi Dian Wijayanto Dyah Rahayu Ningtyas Edwi Ria Agustina EDY H.P. MELMAMBESSY Faik Kurohman Fitriani Fitriani Fransius Try Syahputra Siahaan, Fransius Try Syahputra Haendra Kusuma Putra Ashad Haendra Kusuma Putra Ashad Haeruddin Haeruddin Hakimul Bahri, Aushov Dzaky Hendrik Anggi Setyawan Herna Octivia Damayanti Hernuryadin, Yayan Herry Boesono Herry Boesono Husnul Yaqin Harahap, Husnul Yaqin Hutama, Darmadi Pergala Ika Istikasari, Ika Imam Triarso Indradi Setiyanto Indradi Setiyanto Indradi Setiyanto Indradi Setyanto Jaya, Sutrisman Amei Juniko, Nidia Karimah, Siti Rohmatul Kukuh Prakoso, Kukuh Kurniawan Kurniawan Lusy Maulia Juliani Manik, Dessyanti Melina Antika Merdiana, Shervinda Eky Merida Tri Juliastuti, Merida Tri Miftahurrahmi, Miftahurrahmi Muhammad Rizqi Saputra Muhammad Zainuddin Mulyono S. Baskoro Mustofa, Nova Rodhiyana Nadya Damayanti Utami Nugraha Permana, Nugraha Nugroho, Kun Budi Nurhayati, Eka Siwi Okta Tri Nurhayatin, Okta Tri Padmi Areta Pamuji, Lestiana Dwi Pangastuti, Wahyu Novia Pramonowibowo Pramonowibowo Pramudya, Ega Anatya Furi Putri Rizki Febriani Rahayu Septia Ningsih Rahmad Dharmawan Rengganis, Aninda Reza Kukuh Febrianto Rifa, Muhamad Rinda Noviyanti, Rinda Rizki Wahyuni Batubara Rochmat, Rochmat Rosanti, Dwike Primadita Safa'ah, Kurniyati Saputra, Muhammad Rizqi Saputro, Suradi Wijaya Sardiyatmo Sardiyatmo Sardiyatmo Sardiyatmo Sella Nazda, Sella Selvi Marcellia Setyanto, Indradi Setyawan, Hendrik Anggi Shiffa Febyarandika Shalichaty Siti Annisa Dwi Setiani Nurfadillah Siti Himamul Aliyah Soepanto Soemokaryo Solely Ermin Dwi Listiana Sri Lestari SRI LESTARI Sudarmo, Agnes Puspitasari Sugeng H. Wisudo Sugiarto S Sulistyani Dyah Pramitasari Suradi Wijaya Saputra Suryanti Taniasari, Nungky Taufik Yulianto Tiffany, Annas Erina Trisnani Dwi Hapsari Tutianvia, Aldise Kresna Dewi Utami, Nadya Damayanti Wardini, Tuty Maria Werdani, Riandhita Eri Yusrin, Fildah Latifi