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A Study on bivalves in Yeongil Bay of Gyeongsangbuk-Do Province, Korea
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  • Journal title : The Korean Journal of Malacology
  • Volume 28, Issue 2,  2012, pp.101-108
  • Publisher : The Malacological Society of Korea
  • DOI : 10.9710/kjm.2012.28.2.101
 Title & Authors
A Study on bivalves in Yeongil Bay of Gyeongsangbuk-Do Province, Korea
Cha, Byung-Yul; Lee, Chae-Sung; Moon, Tae-Seok; Park, Mi-Seon;
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Bivalves collected by a dredge in Yeongil Bay of Gyeongsangbuk-Do Province, Korea in May, 2010 and August, 2010 were 2 species including Dostinorbis japonicus and Scapharca broughtonii. The total abundance of bivalves were 1,703 inds. and 140.9 kg. Among them, the abundance of D. japonicus were 1,198 inds. and 76.1 kg. And the abundance of S. broughtonii were 505 inds. and 64.8 kg. The shell length by bivalves species were 25.76-67.88 mm (mean, 58.08 mm) in D. japonicus and 46.82-113.74 mm (mean, 76.86 mm) in S. broughtonii consisting mainly of recruitment group. By regional abundance comparison, the bivalves abundance collected in the outside harbor was 1,332 inds. and 105.4 kg, which was much more than that of the inside harbor indicating 371 inds. and 35.5 kg. In terms of size, the bivalves collected in the outside harbor were 49.49-67.88 mm (mean, 58.47 mm) in D. japonicus and 48.21-113.74 mm (mean, 77.48 mm) in S. broughtonii, which were larger than those of the inside harbor. The yearly biomass of the main commercial target species, S. broughtonii by swept area method (SAM) was estimated up to 242.1 tons. However, considering the regional differences of bivalves between the inside harbor and the outside harbor by abundance and size comparison, it might have been overfished to bivalves in the inside harbor.
Bivalves;Yeongil Bay;Species;Abundance;Biomass;
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