skip to main content

Population Genetics and Phylogeography of Bigeye Tuna in Moluccas Seas, Indonesia

1Marine Science Departement. Faculty of Marine Science and Fisheries, Khairun University, Indonesia

2Aquaculture Departement, Faculty of Marine Science and Fisheries, Khairun University, Indonesia

Received: 17 Oct 2017; Published: 4 Jan 2019.

Citation Format:

The bigeye tuna (Thunnus obesus) is a migratory fish which can be found in the Atlantic, Indian and Pacific oceans. This fish has a commercial value and has been exploited worldwide including in Indonesia. The exploitation might affect the genetic diversity and population structure. The fact that the population stock resource is abundant and following fishing activities are increasing, study on population genetic and phylogeography canbe used as information to determine the status of the fish population based on genetic data. The study was conducted to investigate population genetic, and phylogeography of bigeye tuna in the North Moluccas and South Mollucas Seas, Indonesia. A total of 60 tissue bigeye tuna samples were collected from two study sites. The samples were amplified using mitochondrial DNA control region. Within population genetic diversity was revealed of 0.985 and 1.00 in North Moluccas and in south Moluccas, respectively, while between populations was 0.989. The genetic distance within population of North Moluccas (0.029) and South Mollucas (0.24) was very low, and all population was 0.027. The genetic distance between population of North Mollucas and South Mollucas was 0.025, South Mollucas and all population was 0.023, and all population with Norht Mollucas was 0.027. The genetic distance of North Mollucas and Pacific Ocean was 0.029, South Mollucas and Pacific Ocean was 0.023, North Mollucas, South Mollucas and Indian Ocean was 0.32. The Fst value between populations (0.990) showed that the two populations were not genetically different. A similar result showed from the phylogenetic trees analysis which individual of bigeye tuna was randomly clustred between North Moluccas and South Mollucas population, indicating that they were genetically close and from the same population. The population bigeye tuna from the North Mollucas and the South Mollucas exhibits no apparent phylogeographic distribution.

Fulltext View|Download
Keywords: Thunnus obesus; phylogeography; haplotype; fixation index

Article Metrics:

Last update:

  1. Genetic diversity and population structure of Kawakawa Euthynnus affinis (Cantor, 1849) in Malaysia and its surrounding waters inferred by mitochondrial DNA cytochrome oxidase I and cytochrome b genes

    Khaled Binashikhbubkr, F. Al-Misned, Darlina Md. Naim. Journal of King Saud University - Science, 36 (6), 2024. doi: 10.1016/j.jksus.2024.103193

    NURUL AZLIANA MOHD YASIN, NOORHANI SYAHIDA KASIM, TUN NURUL AIMI MAT JAAFAR, RUMEAIDA MAT PIAH, WAHIDAH MOHD ARSHAAD, SITI AZIZAH MOHD NOR, AHASAN HABIB, MIN PAU TAN . Universiti Malaysia Terengganu Journal of Undergraduate Research, 2 (2), 2020. doi: 10.46754/umtjur.v2i2.146
  3. Mitochondrial marker implies fishery separate management units for spotted sardinella, Amblygaster sirm (Walbaum, 1792) populations in the South China Sea and the Andaman Sea

    Noorul Azliana Jamaludin, Jamsari Amirul Firdaus Jamaluddin, Masazurah A. Rahim, Noor Adelyna Mohammed Akib, Sahat Ratmuangkhwang, Wahidah Mohd Arshaad, Siti Azizah Mohd Nor. PeerJ, 10 , 2022. doi: 10.7717/peerj.13706

Last update: 2024-05-20 05:12:54

  1. Dna barcode and phylogenetics of green humphead parrotfish (Bolbometopon muricatum) in north maluku waters

    Achmad M.J.. AACL Bioflux, 13 (5), 2020.