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김종식,황선도,KIM Jong-Sheek,HWANG Sun-Do 한국수산과학회 2003 한국수산과학회지 Vol.36 No.6
Spatial distribution and biomass of commercial shellfish were investigated in the Saemangeum tidal flat on the west coast of Korea during August 1999. Thirteen species of shellifsh were collected. Major dominant species of the study area were Umbonium thomasi with a density of $6.7\;ind.{\cdot}m^{-2}\;(38.2\%)$, Mactra veneriformis with $6.6\;ind.{\cdot}m^{-2}\;(37.4\%)$ and Reticunassa festiva with $1.3\;ind.{\cdot}m^{-2}\;(7.2\%)$. Commercially important species such as M. veneriformis ($90.7\;ind.{\cdot}m^{-2}\;69.3\%$), M. lusoria ($15.6\;ind.{\cdot}m^{-2}\;11.9\%)$), C. sinensis ($8.7\;ind.{\cdot}m^{-2}\;6.7\%)$) were dominant in total weight. Most of the shellfish were distributed between the mid-littoral and sub-littoral zones, but C. sinensis and L. flexuosa were distributed mainly in the polluted areas of the supra-littoral zone. The spatial distribution pattern of each shellifsh species generally resembles the Mangyeong and Dongjin estuary. Biomass of commercially important species, M. veneriformis, M. lusoria, C. sinensis and Ruditapes philippinarum in the tidal flat (ca. 850 ha) was estimated to be 774, 135, 67 and 10 tons, respectively.
황선도,김종식,HWANG Sun-Do,KIM Jong-Sheek 한국수산과학회 2003 한국수산과학회지 Vol.36 No.6
Species composition and distribution patterns of shellfish were investigated in Eoeun and Geojeon tidal flat located in the Saemangeum area on the west coast of Korea from May to October 2000. Nineteen species of shellfish were collected in Geojeon tidal flat. The samples in number of individuals included Umbonium thomasi $(90.0\%)$ and Mactra veneriformis $(5.0\%).$ In Eoeun tidal flat, ten species of shellfish were collected and the dominant species in number of individuals were Potamocorbula amurensis $(55.0\%)$ and U. thomasi $(18.6\%).$ These results were compared with previous studies conducted before the beginning of reclamation in Saemangeum. Compared with the results from 1988, a change In species composition was observed. Laternula flexuosa and Nuttallia olivacea appeared, while Mactra chinensis and Coelomactra antiquata disappeared in the deposition area in Geojeon tidal flat. In the erosion area of Eoeun tidal flat, M. veneriformis and Meretrix lusoria appeared, while Cyclina sinensis disappeared. Based on a cluster analysis, the shellfish community in Eoeun tidal flat was classified into three station groups based on sediment types. Geojeon tidal flat was also classified into three station groups. The distribution of shellfish in the Saemangeum area was closely related to the sediment types.
한국 서해산 살조개 Protothaca jedoensis의 연령과 성장
김지현(Ji-Hyun Kim),김종식(Jong-Sheek Kim),김용호(Yong-Ho Kim),정의영(Ee-Yung Chung),류동기(Dong-Ki Ryu) 군산대학교 수산과학연구소 2004 군산대학교 수산과학연구소 연구논문집 Vol.5 No.-
Age and growth of the the Jedo venus clam, Protothaca jedoensis were investigated using samples from the subtidal zone of Boryeong, Chungcheongnam-do, Korea from January to December, 1999. The relationship between shell height and ring radius in each group was expressed as a regression line. Therefore, it could be recognized that there is a correspondence in the formation of each ring. Based on the monthly variation of the marginal index of the shell, it was suggested that the annual ring mark formation occurred during the period of February to March once a year. The relationship between .shell height (SH) and total weight (TW) was represented by the non-linear equation: TW = 0.0007 SH28919, and also in the relationship between shell length (SL) and shell height (SH), shell height (SH) and shell width (SW) were represented by the linear equations: SL=1.1 067SH+ 1.778, SW=0.6758SH-0.9824. Growth curves for shell height and total weight fitted to the von Bertalanffy equation were expressed as: SHt = 81.546(1-e-0.176(1+0.381)), TWt = 227.65(1-e-0.176(1+0381)2.8919.
박은미,조현국,홍경은,남보혜,김영옥,김우진,이상준,한현섭,이재용,김종식,장인권,정재훈,최태진,공희정,Park, Eun-Mi,Cho, Hyun Kook,Hong, Gyeong-Eun,Nam, Bo-Hye,Kim, Young-Ok,Kim, Woo-Jin,Lee, Sang-Jun,Han, Hyon Sob,Lee, Jae Yong,Kim, Jong-Sheek,Ja 한국해양바이오학회 2007 한국해양바이오학회지 Vol.2 No.1
Penaeidins은 새우류에 존재하는 항미생물성펩티드의 한 종류로서 새우의 외부 병원체에 대한 방어기작을 구성하는 중요한 인자이다. 본 연구에서는 대하 혈구세포의 cDNA library로부터 분리된 EST 클론을 분리 동정하였다. 아미노산 염기서열 분석과 계통수 분석을 통하여 본 연구에서 분리한 EST 클론이 대하의 Penaeidin 3-2 유전자와 아미노산 수준에서 동일함을 밝혔다. 대하의 Penaeidin 3-2는 signal peptides로 예상되는 19개 아미노산 잔기를 포함하여 전체 71개의 아미노산 잔기로 이루어져 있고, C-말단에는 3개의 이중황화결합을 형성할 수 있는 6개의 cysteine가 존재하였다. 대하 Penaeidin 3-2 전사체는 혈구세포, 간췌장, 근육 조직에서 발현되었으며, 특히 혈구세포에서 주로 많이 발현되었다. 흰반점바이러스의 인위감염 실험에서 바이러스 감염 후 대하 Penaeidin 3-2의 발현이 증가하였다. 이상의 결과들로부터 대하 Penaeidin 3-2가 자체 방어 작용에서 중요한 역할을 할 것으로 예상된다. Penaeidins are members of a special family of antimicrobial peptides existing in several species of shrimp and play a crucial role in the immunological defense of shrimp. In this study, we isolated and characterized one EST clone (penaeidin) from cDNA library of fleshy prawn Fenneropenaeus chinensis hemocytes. Amino acids sequence comparison and phylogenetic analysis with other known penaeidins revealed that our clone was completely identical to F. chinensis Penaeidin 3-2 (Accession no. ABC33920), which composed of 71 amino acids with a putative signal peptide (1-19) and a cysteine-rich domain (C-terminal part). The expression and distribution of Penaeidin 3-2 transcripts in shrimp were detected in hemocytes, hepatopancreas, and muscles, and that Penaeidin 3-2 was constitutively expressed mainly in hemocytes. The artificial infection of white spot syndrome virus to F. chinensis resulted in Penaeidin 3-2 mRNA up-regulation in hemocytes, suggesting that the possible role of Penaeidin 3-2 in host defense system of F. chinensis.