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タイトル: | Unraveling fine-scale genetic structure in endangered hawksbill turtle (Eretmochelys imbricata) in Indonesia: implications for management strategies |
著者: | Sani, Lalu M. Iqbal Jamaludin Hadiko, Gunawan Herma, Ema Inoguchi, Emi Jensen, Michael P. Madden, Christine A. Nishizawa, Hideaki ![]() ![]() Maryani, Leni Farajallah, Achmad Subhan, Beginer Bengen, Dietriech G. Madduppa, Hawis |
著者名の別形: | 西澤, 秀明 |
キーワード: | conservation genetics Java Sea management units mtDNA population genetics mitochondrial DNA nesting colonies haplotype diversity |
発行日: | 2-Apr-2024 |
出版者: | Frontiers Media SA |
誌名: | Frontiers in Marine Science |
巻: | 11 |
論文番号: | 1358695 |
抄録: | Indonesia is an archipelagic country that provides important nesting and foraging habitats for the critically endangered hawksbill turtle (Eretmochelys imbricata). Although many studies have investigated this migratory species globally, there is a lack of information on the population structure and geographic boundary of this species in Indonesia. This study aims to investigate the genetic diversity and population structure of six nesting sites in the Java Sea region of Indonesia. The control region (d-loop) sequence (818 bp) was obtained from 152 individuals, resulting in 20 haplotypes. This study revealed 13 new haplotypes, 12 of which were rare and observed only in a single sampling location. Results showed that the Indonesian population shares haplotypes with rookeries from Peninsular Malaysia and Australia, as indicated by EiIP08 and EiIP49. The haplotype diversity (h) was highest at the more northern rookery sites (Segama Besar Island, Kimar Island, East Belitung, Penambun Island) (h: 0.6033 - 0.9167; 4 - 9 haplotypes) compared to the other two rookeries located in the Seribu Archipelago (Tidung Island and Harapan Island) (h: 0.3354 - 0.5965; 3 - 6 haplotypes). Furthermore, population structure analysis showed a pan-mixed population between Tidung Island and Harapan Island (FST: 0.003, P > 0.05) but significant population structure across all other rookery sites (F[ST]: 0.083 - 0.486, P < 0.05), resulting in five newly identified Management Units (MUs) in this area. This study showed the presence of a complex population structure with local haplotypes and narrow population boundaries for rookeries in relatively close proximity within the Java Sea, prompting local management and highlighting the need for more research on hawksbill turtle populations in Indonesia. |
著作権等: | © 2024 Sani, Jamaludin, Hadiko, Herma, Inoguchi, Jensen, Madden, Nishizawa, Maryani, Farajallah, Subhan, Bengen and Madduppa. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
URI: | http://hdl.handle.net/2433/287669 |
DOI(出版社版): | 10.3389/fmars.2024.1358695 |
出現コレクション: | 学術雑誌掲載論文等 |
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