Abstract. Talakua M, Suadi, Djumanto, Setyobudi E. 2022. Record of Hemiramphus lutkei Valenciennes, 1847 from Seram Sea, Maluku, Indonesia with its molecular characterization. Biodiversitas 23: 1560-1566. Hemiramphus sp. is a fish species widely distributed throughout the world. However, the area distribution of each species differs between regions. Hemiramphus archipelagicus could be found in Seram Sea, Maluku and Ekas Bay, Lombok, Hemiramphus sp. from North Maluku Sea, and H. brasiliensis from the North Minahasa Sulawesi. The identification of Hemiramphus in Indonesia uses mainly the morphological approach. This study aims to determine the morphometric and meristic character and identify the halfbeak collected from the Seram Sea, Maluku, using a molecular approach. A total of 214 fish samples were used to determine the morphometric and meristic characters of halfbeak, following the measurement method that has been developed previously. All samples of halfbeak showed similar morphological characteristics. Identification by direct sequencing of the cytochrome c oxidase subunit I (COI) gene was conducted from selected samples. The halfbeak caught in the Seram Sea had an elongated flat body shape, the dorsal part of the body is blue-green, the tip of the lower beak is sharp, enlarged towards the base in the oral cavity; the lower beak is reddish-orange and longer than the upper beak. The fin formula of halfbeak from the Seram Sea is D.13-15, P.9-12, V.5-6, A.9-12, C.7/8, and the number of scales at the lateral line is 52-58. Based on molecular identification, the halfbeak species from the Seram Sea was confirmed as Hemiramphus lutkei with a genetic distance of 0.0055 compared to H. lutkei from India, and a genetic distance of 0.0540 with H. balao.
ABSTRAKKatang balanga (Scylla serrata) hidup pada dua kawasan mangrove di desa Leksula yaitu Teslatu-Tanjung Kabat dan Kamite Salehen. Pemerintah Desa Leksula menerapkan sasi katang balanga pada kawasan mangrove Teslatu-Tanjung Kabat. Sasi katang balanga adalah larangan menangkap katang balanga pada waktu tertentu dan cara untuk menghindari penangkapan katang balanga diluar waktu yang ditentukan. Penelitian ini bertujuan membandingkan populasi katang balanga di kawasan mangrove Teslatu-Tanjung Kabat dan Kamite Salehen dan mengetahui dampak sasi katang balanga bagi kehidupan katang balanga di Desa Leksula. Pengamatan katang balanga dan pencacahan individu per kelamin dilakukan menggunakan alat tangkap bubu, pada periode bulan terang dan gelap. Kelimpahan dan estimasi hasil penangkapan katang balanga dibandingkan menggunakan uji-t. Penerapan sasi katang balanga di kawasan mangrove Teslatu-Tanjung Kabat memberikan hasil tangkapan lebih baik. Namun demikian, perlu dilengkapi dengan sejumlah aturan untuk keberlanjutan populasi katang balanga.Kata kunci: Berkelanjutan; Desa Leksula; Katang balanga; Sasi,Scylla serrata ABSTRACTKatang Balanga or mud crabs (Scylla serrata) live in two mangrove areas in Leksula, Teslatu-Tanjung Kabat and Kamite Salehen. Local authority in Leksula applies Sasi Katang Balanga to the Teslatu-Tanjung Kabat mangrove area. This research aims to compare the population of mud crabs in Teslatu-Tanjung Kabat and Kamite Salehen mangrove area and to know the impact of sasi on mud crabs population in Leksula. The observation of mud crabs and the enumeration of the sex of each individual was carried out by using guiding barriers or traps in the full and the new moon. The estimation of mud crabs capture results were compared using t-tests. The use of sasi in the Teslatu-Tanjung Kabat mangrove area shows a better catch results. However, it still needs to be equipped with regulations for the sustainability of mud crabs population.Keywords: Sustainability; Leksula; Katang balanga; Sasi; Scylla serrata
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.