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http://dx.doi.org/10.3796/KSFT.2014.50.4.455

Seasonal species composition and cluster analysis of catches by shrimp beam trawl in the Geum river estuary  

Lee, Sun-Kil (Fisheries Resources and Environment Division, Southwest sea Fisheries Research Institute, NFRDI)
Choi, Moon-Seong (Fisheries Resources and Environment Division, Southwest sea Fisheries Research Institute, NFRDI)
Seo, Yeong-Il (Fisheries Resources Management Division, NFRDI)
Lee, Jae-Bong (Dokdo Fisheries Research Center, NFRDI)
Publication Information
Journal of the Korean Society of Fisheries and Ocean Technology / v.50, no.4, 2014 , pp. 455-466 More about this Journal
Abstract
Seasonal variations in species composition of catches were explored using seasonal samples caught by shrimp beam trawl in the Geum river estuary in 2011. During the study period, total catches were collected 91 species as fish 47 species, crustacean 28 species, mollusca 4 species, gastropoda 5 species, shellfish 3 species and others 4 species. The dominant species were Exopalaemon carinicauda, Eriocheir leptognathus, Palaemon gravieri, Mugil cephalus, Acanthogobius hasta, Cynoglossus joyneri, Pennahia argentata and Coilia nasus. The amount of species in spring and summer was higher than in autumn. The diversity index (H') was 0.43~0.96, evenness index (EI) was 0.14~0.25, and richness index (RI) was 1.54~4.25. Using cluster analysis 91 species were divided into 4 groups. Group I appeared mainly in spring and summer. Group II appeared only in summer. Group III appeared in winter and spring, and Group IV in spring and autumn.
Keywords
Geum river estuary; Dominant species; Diversity index(H'); Evenness index(EI); Richness index(RI); Cluster analysis;
Citations & Related Records
Times Cited By KSCI : 12  (Citation Analysis)
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