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Risk assessment of invasive species freshwater crayfish (Cherax quadricarinatus) in Lake Laut Tawar, Aceh Kasturi Ramdayani; Ali Mashar; Mohammad Mukhlis Kamal; Iwan Hasri
Depik Vol 14, No 2 (2025): JUNE 2025
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

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Abstract

This study aims to assess the distribution of Cherax quadricarinatus based on depth and evaluate its invasiveness using a risk assessment in Lake Laut Tawar, Central Aceh. The study was conducted at five stations representing various lake activities: Station 1 (One-One), Station 2 (Bewang), Station 3 (Gegarang), Station 4 (Mendale), and Station 5 (Dedalu). The methodology involved direct observation in the field followed by laboratory analysis. The results showed that 284 individuals were caught, consisting of 138 females and 146 males, with carapace lengths ranging from 20 to 76 mm. No consistent distribution of male and female carapace lengths was observed across all stations. The abundance of Cherax quadricarinatus in Lake Laut Tawar was classified as very abundant (20%) at One-One and Bewang stations, both at a depth of 5 meters. In conclusion, Cherax quadricarinatus significantly dominates the lake ecosystem, as indicated by its relative abundance at different depths across the study sites. This species also shows a high potential for invasion in freshwater lakes, highlighting the need for effective management strategies.Keywords:Cherax quadricarinatusInvasive spesiesLake Laut Tawar, Aceh
Co-Authors . Zairion Achmad Fahrudin Achmad Fahrudin Achmad Fahrudin Achmad Fahrudin Achmad Fahrudin Agoes Mardiono Jacoeb Agus Alim Hakim Agus Atmadipoera Agus Oman Sudrajat Ahmad, Aditiyawan Ali Mashar Ali Suman Ali Suman Ali Suman Aliati Iswantari Apriana Vinasyiam Ariane Koch-Larrouy Arif Miftahul Aziz, Arif Miftahul Arif Wibowo Arif Wibowo Ario Damar Arlita, Kriswidya Ayesha Hafizh Ayu, Inna Puspa Beatrix M. Rehatta Beginer Subhan Booth, Hollie Bosman, Ofan Cahyanti, Wahyulia Dade Jubaedah Dade Jubaedah Darmawan, Aldo Dawi, Mario Raja Sani Deni Irawan, Deni Deni Radona, Deni Dewi SLKT Dewi, Nina Nurmalia Dwi Yuni Wulandari Efin Muttaqin Eko Prianto, Eko Elok Faiqoh Enan M Adiwilaga Endah Sri Rahayu Endang Juniardi Endi Setiadi Kartamihardja Endi Setiadi Kartamihardja Fera Permata Putri, Fera Permata Forcep Rio Indaryanto G Yulianto Gadis Sri Haryani Gadis Sri Haryani Gatot Yulianto Gilang Rusrita Aida Grin Tommy Panggabean Harahap, Wini Aafini J Haris Setiawan Helmy Akbar Hendrik Sombo Hollie Booth I Nyoman Suyasa Iis Diatin Iman Wahyudin Ipambonj, Lisa Irin Iriana Kusmini, Irin Iriana Ismudi Muchsin Ismudi Muchsin Ismudi Muchsin Iwan Hasri Jabbar, Meuthia Aula Jifi Abu Ammar Jojo Subagja Kadarwan Soewardi Kasturi Ramdayani Kiagus Abdul Azis Kristanto, Anang Hari Kurniawan Kurniawan La Ode Syahlan S Sagala Larasati, Aulia Nur Larashati, Sekar Luky Adrianto Luky Adrianto Ma'mun Ansori Mala Nurilmala Mana, Ralph Mennofatria Boer Mia Setiawati Mirza Dikari Kusrini Mohamad Jakaria Muhammad Arif Nasution Muhammad Nizar Muhammad Nizar Muhammad Nizar Nabillah, Firja Hasanah NEVIATY PUTRI ZAMANI Niken Tunjung Murti Pratiwi Nugroho, Dwiyoga Nurasiah Riza Nurlisa Alias Butet Nurseptiani, Sifa Okta Simon Oktavia, Nia Otong Zenal Arifin Prakoso, Vitas Atmadi Pratiwi, Niken TM. Prihatiningsih Prihatiningsih Radityani, Fitri Afina Rahmat Kurnia Ramdayani, Kasturi Ridwan Affandi Ridwan Affandi RIDWAN AFFANDI Rika Astuti Risa Tiuria Rizsa Mustika Pertiwi Robin Robin, Robin Rohmah, Lailia Nur Ronny I. Wahju Rudhy Gustiano Rumagia, Faizal Sagala, La Ode Syahlan S Sakina, Edna Samir, Octavianto Sayaza, Mas Davino Shinta Pardede Sifa Nurseptiani Sigid Hariyadi Sigid Hariyadi Singgih Afifa Putra Siti Rahmawati Stuart J Campbell Sukmaraharja Tarigan Sulistiono Sulistiono Sulistiono Supriyadi, Adi Spy Surjanto, Didiek Syamsiar, Syamsiar Syarifah Nurdawaty T Tarsidin Taryono Taryono, Taryono Tatag Budiardi Thomas Hidayat Tjahjo Tri Hartono Trie, Triyanto Triyanto Triyanto Triyanto Triyanto Triyanto, Triyanto Utama, Darma Wahidin, Nurhalis Widoretno, Mey Ristanti Wildan, Dudi Muhammad Y. Rahmah Yanti Sinaga Yulia Fitrianingsih Yunizar Ernawati Yunizar Ernawati Yusli Wardiatno Yuspita, Ni Luh Eta