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아므르불가사리 (Asterias amurensis)의 배우자를 이용한 남해해역 연안해수의 생물학적 수질평가
유춘만,박지인,조기안,주현수,박종천,나명석 한국환경과학회 1999 한국환경과학회지 Vol.8 No.1
This study was carried out to evaluate off-shore water quality and to draw marine pollution map to Southern sea in Korea by bioassay using gametes and early development system of Asterias amurensis. From the bioassay, it was determined that the water qualites of Southern sea maintained the grade Ⅱ, because development of A. amurensis were moderately inhibited. However, Sunchon, Kwangyang, and Jinhae Bay belonged to grade Ⅲ, because development of A. amurensis were strongly inhibited. This could be due to the inflows of several river systems and poor water circulation. The water quality at Yosu island was the grade I, because A. amurensis were not inhibited in its early development.
박종천,오재영,정용욱,주현수,이원교,유춘만,이우범 國立 麗水大學校 환경문제硏究所 2001 環境硏究論文集 Vol.4 No.-
The biological surveys were performed at seven sites in the Gangjin bay from February, 1998 to November, 2001. In order to analysis of environmental variation, numbers of heterotrophic bacteria, general fungus and fecal coliforms were enumerated in each sample. The result showed that variation range of heterotrophic bacteria, general fungus, and fecal coliforms were 2.9 x 10^(3)~9.6 x 10^(3) CFU/ml, 17.2~80.1 CFU/ml, and 6.3~682.5 CFU/100ml for four tears(1988~2001), respectively. Density of heterotrophic bacteria and general fungus were gradually decreased for four tours, while fecal coliforms were suddenly increased. Specially, numbers of fecal colifoms were increased the more 100 times in 2001 than that 1998. We think that it was probably caused a little rainfall in February, 2001. There result suggests that ecosystem of Gangjin bay were mainly regulated by 2~3 factors, which were inflow of fresh water, salinity and variation of water temperature.
중금속이 불가사리의 초기배발생에 미치는 영향에 관한 연구
유춘만 ( Chun Man Yu ) 한국환경생물학회 1998 환경생물 : 환경생물학회지 Vol.16 No.2
This study was attempted to carry out the effects of heavy metals when starfishs (Aster inn pectin if era, Asterias amurensis) formed early embryos. From the results of the experiment for the effects of heavy metals on the development of starfishs, the ranking of heavy metals according to decreasing effects upon the. fertilization and development of Asteruis amurensis eggs was follows: Hg, Cu, Zn, Cd, Ni, Pb, Cr, As, and Fe. On the other hand, the ranking of heavy metals according to decreasing effects upon the fertilization and development of Asterina pectinifera eggs was follows: Cu, Hg, Zn, Cd, Ni, Cr, Pb. As, and Fe. In most heavy, the ranking of experimental animals according to decreasing effects upon fertilization and development of starfishs in the same concentration of heavy metals was follows: Asterina pectinifera, Asterias amurensis.
아므르불가사리를 이용한 동해해역 연안해수 수질의 생물학적평가
유춘만(Chun Man Yu) 한국환경생물학회 1998 환경생물 : 환경생물학회지 Vol.16 No.3
The water quality of offshore waters along the East coast of Korea was evaluated by biological evaluation using gametes, embryos and early development systems of a starfish species Asterias amurensis. The results show that despite the inflows of several river systems, the East coast maintain the 1st and 2nd grade quality: those which damage the development of early embryos very slightly. Site 21 in Cheungcho Lake of Sokcho were rated as 3rd grade. Site 5, 8 off Pohang shore, site 11, 12 off Wooljin shore, site 13, 14 off Donghae shore, site 16, 17, 18, 19 off Kang-lung shore, site 20, 22 Sokcho shore were all rated the 1st grade. The other nine sites proved to be 2nd grade.
유춘만 ( Chun Man Yu ),이종빈 ( Jong Bin Lee ),박종천 ( Jong Cheon Park ),주현수 ( Hyun Soo Joo ) 한국환경생물학회 2004 환경생물 : 환경생물학회지 Vol.22 No.3
N/A In August 2003, the water quality of offshore waters along the Incheon coast of Korea was evaluated by biological evaluation using gametes, embryos and early development systems of a starfish species (Asterina pectinifera). As the result of performing biological evaluations on seawater samples from a total thirteen sites, the formation rate of normal larva was 16-68%. At seawater sample from site 5 and 13, formation rate of normal larva averaged 16%, the most abnormal rate hindering the early embryo development of the experimental animal, while that of site 3 averaged 68%, the highest formation rate of normal larva. At seawater sample from site 2, 4, 7, 9, 10, 11, 12, formation rate of normal larva averaged 33-54%, those which damage the development of early embryos slightly. At seawater sample from site 1, 5, 6, 8, 13, formation rate of normal larva averaged 16-28%, those which damage the development of early embryos strongly.
유춘만(Chun Man Yu),최병순(Byung Soon Choi),국승욱(Seung Wook Kook) 한국환경생물학회 1998 환경생물 : 환경생물학회지 Vol.16 No.3
This study was carried out to research the effects of temperature on biological evaluation of seawater quality with gametes, embryos and early development system of two starfishes (Asterina pectinifera and Asterias amurensis). As the result of performing effects of temperature on early embryo development, the conditions of appropriate temperature on formation of normal bipinnaria were at 8℃ ∼ 20℃ for Asterina pectinifera and 8∼16℃ for Asterias amurensis. The conditions of optimum temperature on biological evaluation were 20℃ for Asterina pectinifera and 16℃ for Asterias amurensis.
보라성게의 초기 배 발생계를 이용한 우리나라 서해해역 연안해수의 생물학적 평가
유춘만(Chun Man Yu) 한국환경보건학회 1998 한국환경보건학회지 Vol.24 No.4
보라성게(Anthocidaris crassispina)의 배우자와 배아 및 초기 배 발생계를 이용하여 우리나라 서해해역연안해수를 생물학적 방법을 통해 등급화, 해양오염지도(marine pollution map) 를 작성하였다. 그 결과 대부분의 연안수질이 약간 악화된 편으로 총 38개 정점 중, 안산만 1개 정점, 태안반도 1개 정점, 군산 연안 1개 정점, 함평만 2개 정점, 무안 연안 1개 정점, 목포 연안 1개 정점, 총 7개 정점에서 보라성게가 초기 배발생을 하는 데 있어 큰 저해를 받는 III 등급의 수질로 판명되었고, 그외 총 16개 정점에서는 보라성게가 초기 배 발생을 하는데 있어 약간의 저해 받는 II 등급의 수질로 판명되었다.
아므르불가사리 배아를 이용한 서해 연안해수의 생물학적 수질평가
유춘만(Chun Man Yu),주현수(Hyun Soo Joo),박지인(Ji In Park),위인선(In Sun Wui),이종빈(Jong Bin Lee) 한국물환경학회 1998 한국물환경학회지 Vol.14 No.4
This survey was carried out to evaluate offshore water quality to Western sea in Korea by bioassay using early development system of Asterias amurensis. Despite of the inflows of several river systems, most West coast maintained the grade Ⅱ water quality because embryo development of Asterias amurensis was moderately inhibited. This is thought to be due to the decrease in pollutant input resulting from the purification of inflow rivers (e. g., the control of waste water discharge and the construction of sewage treatment facilities), and the dilution of pollutants by a strong tidal mixing with a large difference between the ebb and flood tides. However, the water quality of Asan, Hampu˘ng and Choˇnsu Bays, where circulations of water are relatively poor, and Kunsan and Mokpo harbors which are influenced by pollutants from neighboring cities have shown the grade III because embryo development of Asterias amurensis was strongly inhibited.
Scaphechinus brevis 의 생물검정에 의한 동해해역 연안해수의 수질평가
유춘만(Chun Man Yu),위인선(In Sun Wui),이종빈(Jong Bin Lee),위성욱(Sung Wook Wui) 한국물환경학회 1999 한국물환경학회지 Vol.15 No.1
In August, 1995, the water quality of offshore waters around the Korean East coast was evaluated by bioassay using gametes, embryoss and early development systems of a sea urchins species Scaphechinus brevis. The results showed that despite the inflows of several river systems, the East coast maintained the 2nd grade(II) quality. Site 2 in Cheungcho Lake of Sokcho were rated as 3rd grade(III). Site 1, 3 Sokcho shore, site 4, 5 Kanglung offshore, site 13 Wooljin offshore were all rated the lst grade(I). The other nine sites proved to be 2nd grade.