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Genetic structure and diversity of the red big eye Priacanthus macracanthus in the northwestern Pacific Ocean

Year: 2025

Type: article

Abstract: Understanding genetic diversity and population structure is essential for effective fisheries management. This study examined the population genetic structure, diversity, and demography of the red big eye Priacanthus macracanthus, a commercially crucial species in the western Pacific and eastern Indian Oceans, by using mitochondrial DNA cytochrome b (cytb) gene sequences (1,141 bp). A total of 206 samples were collected from 9 locations, and 101 haplotypes were obtained. Analysis revealed that (1) all haplotypes clustered into two sympatric haplogroups; (2) although the genetic distance between these haplogroups was small, nucleotide substitution patterns indicated distinct evolutionary histories; (3) migration and haplogroup distribution patterns suggested that the two haplogroups may have originated from different sources, eastern Indian Ocean and the western Pacific Ocean; and (4) recent population declines and low nucleotide diversity indicated a need for targeted management strategies. These findings provide valuable insights that can guide fisheries management and future research on the conservation of P. macracanthus populations.

Source: Marine Biodiversity

DOI: 10.1007/s12526-025-01529-w

Authors: Sheng-Tai Hsiao, Yu-Min Ju, Kui-Ching Hsu, Po-Hsun Kuo

Institutions: National Sun Yat-sen University, National Museum of Marine Biology and Aquarium, National Taiwan University of Science and Technology

Language: English

Topic: Genetic diversity and population structure

Subfield: Genetics

Field: Biochemistry, Genetics and Molecular Biology

Domain: Life Sciences

SDG: Life below water

Open Access status: hybrid

Estimated APC paid: $3,890