open access
메뉴
open access
메뉴
ISSN : 1225-3480
본 연구를 위하여 득량만 키조개, Atrina pectinata의 양성밀도별 성장과 생존율을 조사하였다. 실험기간 중 이식해역의 수질환경을 살펴보면 수온은 <TEX>$14.5-28.0^{\circ}C$</TEX>였으며, 염분농도는 27.98-31.89 psu로 나타났다. 수소이온농도(pH)는 7.78-8.35 범위였으며, 용존산소는(DO) 7.07-7.90 mg/L, 화학적 산소요구량(COD)은 1.20-1.70 mg/L로 나타났다. 용존 무기질소(DIN)는 2.88-6.02 mg/L였으며, 인산염인(<TEX>$PO_4-P$</TEX>) 0.06-2.09 mg/L, Chlorophyll-a는 0.20-0.79 mg/L, 부유입자물질(SPM) 은 10.8-21.4 mg/L의 범위로 나타났다. 저질 환경을 살펴보면 총강열감량(IL)은 4.0-4.6%, 저질COD는 7.28-10.76 mg/L, 황화물(AVS)은 0.03-0.05 mg/L의 범위를 나타냈다. 밀도에 따른 키조개의 성장을 살펴보면, 저밀도의 시험구에서 높은 성장률을 보였다. 각고의 일간성장률은 5 indiv./<TEX>$m^2$</TEX> 시험구가 0.27%이었고, 10 indiv./<TEX>$m^2$</TEX>는 0.26%, 35 indiv./<TEX>$m^2$</TEX> 시험구는 0.21%이었다. 전중량의 일간성장률은 5 indiv./<TEX>$m^2$</TEX> 시험구가 0.33%이었고, 10 indiv./<TEX>$m^2$</TEX>는 0.29%, 35 indiv./<TEX>$m^2$</TEX> 시험구는 0.20%이었다. 생존율은 5 indiv./<TEX>$m^2$</TEX>와 10 indiv./<TEX>$m^2$</TEX> 시험구에서 높은 생존율을 나타냈다.
Growth and survival rates dependent on the density of a pen sell, Atrina pectinata were measured from Duekryang bay in Korea. Annual water temperature and salinity of the study area were ranged from 14.5 to 28.0℃ and from 27.98 to 31.89 psu, respectively. The pH, DO, COD, DIN, Chl-a and SPM in the study area ranged from 7.78-8.35 mg/L, 7.07-7.90 mg/L, 1.20-1.70 mg/L, 2.88-6.02 mg/L, 0.20-0.79 mg/L and 10.8-21.4 mg/L. The IL, COD and AVS in sediments ranged from 4.0-4.6%, 7.28-10.76 mg/L and 0.03-0.05 mg/L respectively. The daily growth rate of shell height and total weight were 0.27%, 0.33% (5 indiv./m²), 0.26, 0.29% (10 indiv./m²) and 0.21, 0.20% (35 indiv./m2). The survival rate also decreased along the density gradient; highest at the lowest density of 5 indiv./m² and lowest at the maximum density of 35 indiv./m².
Choi, Y.K, (1995) Environmental characteristics according to the depth in Deukryang Bay, culturing ground of Pen Shell (Atrina Pectinata), Journal of Korean Society Fish Technology
JRMAF, (2001) Guide of mariculture farm on Deukryang Bay, Jangheung Regional Maritime Affairs and Fisheries office, Korea
Kim, C.W, (1998) Distribution of the bivalve resources in Deukryang Bay, Journal of Aquaculture
MOMAF, (2006) Statistical yearbook of maritime affairs and fisheries, Ministry Of Maritime Affairs and Fisheries, Seoul
NFRDI, (1997) Studies on the Development of Techniques on pen shell natural spat collection, National Fisheries Research and Devel- opment Institute, Korea
Ricker,W.E, (1975) Computation and interpretation for biological statistics of fish population, Bulletin of the Fisheries Research Board of Canada
Ryu, D.K, (2001) Age and growth of the Pen Shell, Atrina (Servatrina) pectinata japonica (Reeve), on the west coast of Korea, The Korean Journal of Malacology
Son, P.W, (2005) Study on the natural spat collection of the Pen shell, Atrina pectinata, Korean Journal of Malacology
Song, H.I, (1988) Studies on the growth of transplanted oyster, Crassostrea gigas (Thunberg) from western coast of Korea, Bulletin of Fisheries Research Devision Agency
Yang, M.H, (1998) A study on the growth of Pen shell, Atrina pectinata japonica transplanted into Duekryang Bay in southern Korea Ⅰ. Environmental factors and transplanted effect on different shell size groups, Journal of Aquaculture
Yoo, S.K, (2000) Shallow sea culture. Guduk Pub. Co, Guduk Publishing Co., Busan
Yoo, S.K, (1984) Studies on the pen shell culture development (I). Reproductive ecology of pen shell in Yoja Bay, Journal of Korean Fisheries Society
Yoo, S.K, (1972) Biological studies on oyster culture (Ⅰ) Growth of the Crassostrea gigas, Bulletin of Pusan Fisheries College