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1 May 2008 Population Structure in the Sword Prawn (Parapenaeopsis hardwickii) from the East China Sea and Taiwan Strait Inferred from Intron Sequences
Tzong-Der Tzeng, Ta-Jen Chu, Daryi Wang, Hsien-Lu Haung, Shean-Ya Yeh
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Abstract

Sequence analyses on the intron from the elongation factor-1α gene were conducted to examine the population structure of sword prawn (Parapenaeopsis hardwickii) in the East China Sea and Taiwan Strait. Five samples including 207 individuals were separately collected from the north of East China Sea (NECS) and waters off Tamsui, Taichung, Putai, and Cheding, and 102 alleles were identified. Despite no phylogeographic structure in alleles, pairwise FST values and analysis of molecular variance (AMOVA) showed significant genetic difference between the NECS and the other four samples. The UPGMA tree of five samples showed two distinct clusters; one included the NECS sample; the other included the rest of samples. The results suggest that two populations exist in the East China Sea and Taiwan Strait. To ensure resource sustainability and maintenance, the sword prawn in the Taiwan Strait and the north of the East China Sea should be treated as two separate populations and then be separately managed in future. Both Tajima's D and Fu and Li's D statistics and analysis of mismatch distribution for overall alleles suggested that sword prawn in studied area had experienced population expansion.

Tzong-Der Tzeng, Ta-Jen Chu, Daryi Wang, Hsien-Lu Haung, and Shean-Ya Yeh "Population Structure in the Sword Prawn (Parapenaeopsis hardwickii) from the East China Sea and Taiwan Strait Inferred from Intron Sequences," Journal of Crustacean Biology 28(2), 234-239, (1 May 2008). https://doi.org/10.1651/0278-0372(2008)028[0234:PSITSP]2.0.CO;2
Received: 14 April 2007; Accepted: 17 August 2007; Published: 1 May 2008
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KEYWORDS
East China Sea
Elongation factor-1α gene
Parapenaeopsis hardwickii
population structure
Taiwan Strait
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