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http://dx.doi.org/10.3796/KSFT.2012.48.4.428

Seasonal variation in species composition of catch by a coastal beam trawl in Jinhae Bay and Jinju Bay, Korea  

Song, Mi-Young (Inland Fisheries Research Institute, NFRDI)
Kim, Joo Il (Southeast Sea Fisheries Research Institute, NFRDI)
Kim, Sung Tae (Fisheries Resources Research Division, National Fisheries Research & Development Institute)
Lee, Jong Hee (Fisheries Resources Research Division, National Fisheries Research & Development Institute)
Lee, Jae Bong (Dokdo Fisheries Research Center, NFRDI)
Publication Information
Journal of the Korean Society of Fisheries and Ocean Technology / v.48, no.4, 2012 , pp. 428-444 More about this Journal
Abstract
The species composition and seasonal variation of fisheries resources in Jinhae bay and Jinju bay, were studied using shrimp beam trawl through a year of 2010. During the study period, a total of 117 species were collected in Jinhae bay. Species included were 63 species in Pisces and 24 in Crustacea. And a total of 106 species were collected in Jinju bay. Species included were 57 species in Pisces and 31 in Crustacea. The dominant species were Zoarces gilli, Crangon hakodatei and Oratosquilla oratoria in Jinhae bay, and Crangon hakodatei, Leiognathus nuchalis and Charybdis bimaculata in Jinju bay. The samples were mainly grouped according to the location and season on the SOM. Group 1 with sample sites in Jinju bay, was characterized by high values of Parapenaeopsis tenella, Leiognathus nuchalis and Hexagrammos otakii. Group 2 with sample sites in April, were dominant Crangon hakodatei and Luidia quinaria. The samples in Group 3 were high values of Charybdis bimaculata and Pleuronichthys cornutus. Group 4 with sample sites in Jinhae bay, was characterized by high densities of Zoarces gilli and Pholis fangi. The dominant species, Crangon hakodatei, were catched egg-bearing females until June. Zoarces gilli and Leiognathus nuchalis were presented small size individuals during study period. It represented that study area is an important role in spawning and nursery ground for fisheries resources.
Keywords
Fisheries resources; Shrimp beam trawl; Self-organizing map (SOM); Jinhae bay; Jinju bay;
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Times Cited By KSCI : 15  (Citation Analysis)
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