ISSN : 1225-3480
To investigate the habitat environment and distribution of Corbicula japonica, salinity, sediment composition and its densities were investigated in the Seomjin River. Salinity in the study area ranged from 0.08 to 23.18 psu. Sediment composition was sand or silty sand. The sorting values ranged from 1.0 to 2.7 Ø (mean 1.5 Ø), and the water content (%) and ignition loss (%) were higher in the downstream than in the upstream. Density of C. japonica ranged from 2.5 to 33.7 inds./m2. Density near Mokdo (Site 3) was the highest and that near Gojeon (Site 1) and Dugok (Site 8) was low. In addition, a resource survey of C. japonica was conducted to estimate its biomass in 3 times. The total biomass in the Seomjin River was estimated to be 191.1 tons with the biomass of Mokdo (Site 3) the highest.
Baek, S.H., Seo, J.Y. and Choi, J.W. (2015) Growth characteristics and distribution pattern of a brackish water clam, Corbicula japonica along an estuarine salinity gradient in Seomjin River. Journal of the Korea Academia-Industrial Cooperation Society, 16(10): 6852-6859.
Chung, E.Y., Kim, J.B., Kwak, O.Y. and Lee, C.H. (2004)Seasonal changes in biochemical component of the adductor muscle, visceral mass and foot muscle of Corbicula japonica, in relation to gonad developmental phases. Korean Journal of Malacology, 20(2): 111-120.
Folk, R.L. and Ward, W.C. (1957) Brazos River bar: a study in the significance of grain size parameters. Journal of Sedimentary Petrology, 27: 3-26.
Folk, R.L. (1954) The distinction between grain size and mineral composition in sedimentary-rock nomenclature. Journal of Geology, 62: 344-359.
Kim, W.K., Lee, C.S., Lee, J.Y., Baik, K.K. and Hur, S.B. (2002b) Environmental factors and population density of brackish water clam, Corbicula japonica on Namdae Stream in Yangyang, Gangwon, Journal of Aquaculture, 15: 1-6.
Lee, J.B., Shin, Y.J., Lee, J.H., Choi, Y.M., Lee, D.W. and Cha, H.K. (2012) Estimation of potential fishery yield for Corbicula japonica in the Seomjin River, Korea. Korean Journal of Malacology, 28(2): 91-99.
Ryu, J.Y., Youn, S.T., Koh, Y.K. and Oh, K.H. (2015) The depositional environments and roundness of surface sediments in mid to downstream of the Seomjin River. Journal of the Korean Geomorphological Association, 22: 63-74.
국가통계포털 (http://kosis.kr/) (2016) 재첩 어획량 통계자료.
국가해양환경정보통합시스템 (MEIS) (2016) 해양환경측정망 계절별 측정 자료.
해양환경공정시험기준 (시행2013.10.8. 해양수산부고시 제2013-230호, 2013. 10.8. 일부개정).
