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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.
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.
불가사리를 이용한 생물학적 평가법 ( bioassay ) 에 의한 우리나라 해역 연안해수의 환경평가
유춘만,위인선,이종빈 ( Chun Man Yu,In Sun Wui,Jong Bin Lee ) 한국물환경학회 1998 한국물환경학회지 Vol.14 No.2
This study was done to evaluate the quality of offshore waters in Korea using gametes, embryos and early development system of Asterina pectinifera. Results of the quality evaluation of offshore waters of Korea by bioassay using A. pectinifera has shown that in spite of an inflow of many rivers from Korean topography, the west coast has maintained the second grade (II), because pollutant inflow was decreased due to purification of inflow rivers, control of waste water discharge, construction of wastewater treatment plants, and because pollution was decreased by smooth circulation of sea water with difference of the large ebb and flow of the tide. On the other hand, Asan, Hampyeung and Cheunsu Bay where water circulation is relatively poor, and Gunsan and Mokpo harbors which are inflowed by rich polluants from neighboring cities have shown third grade(III) because A. pectinifera was inhibited violently to early development. The South coast has maintained the second grade (II) or third grade(III) because A. pectinifera was inhibited moderately or strongly to early development. Also, Kangjin, Duekyang, Kwangyang, Masan and Jinhae Bay where water circulation is relatively poor have shown third grade (III) because A. pectinifera was inhibited violently to early development. The East coast has maintained the first and second grade (I), (II) because of simple coasts and smooth circulation of sea water. But Cheungcho Lake was worsened by he breakwater that was constructed in order to maintain port functions.
생물학적 평가법 ( bioassay ) 을 이용한 남해해역 연안해수 수질평가
유춘만,위인선,이종빈 ( Chun Man Yu,In Sun Wui,Jong Bin Lee ) 한국환경생물학회 1998 환경생물 : 환경생물학회지 Vol.16 No.2
This study was performed in order to evaluate off-shore water quality and to draw marine pollution map to Southern sea in Korea by bioassay using gametes, embryos and early development system of Anthocidaris crassispina. Form the bioassay, it was determined that the water qualites of Southern sea maintained the grade Ⅱ, Ⅲ because development of Anthocidaris crassispina were moderately inhibited. However, Doam, Bosung, Sunchon, Kwangyang, Bosung, Songjin .and Masan Bay, Kunsan and Mokpo harbors would be grade Ⅲ because development of Anthocidaris crassispina were strongly inhibited. This could be due to the inflows of several river systems and poor water circulation. The water quality at Haenam and Yeusu island were determined the grade I because Anthocidaris crassispina was not inhibited to early development.
동복호 (同福湖) 유입하천의 조류증식능에 (藻類增植能) 관한 연구
김현아,이나나,유춘만,위성욱,주현수,이종빈,위인선 ( Hyun Ah Kim,Na Na Lee,Chun Man Yu,Seong Uk Wui,Hyun Soo Joo,Jong Bin Lee,In Sun Wui ) 한국환경생물학회 1995 환경생물 : 환경생물학회지 Vol.13 No.1
On filtered and autoclaved water samples from the upper stream of Lake Tong-Bok, physico-chemical analysis and algal growth potential (AGP) test using Selenastrum capricornutum Printz were performed from October, 1991 to July, 1992 in order to assess fertility potential of the lake and to identify possible limiting nutrients. Water temperature of the lake was fluctuated from 3.8℃ to 30.7℃, the range of pH was 6.0 to 8.0, the level of dissolved oxygen ranged from 5.5㎎/ℓ to 14.4㎎/ℓ, biochemical oxygen demand varied from 0.3㎎/ℓ to 7.6㎎/ℓ, and suspended solides was fluctuated from 0.7 ㎎/ℓ to 24.5㎎/ℓ. Results of nutrient analysis were as followings. The level ammonia was from ND(<0.01㎎/ℓ) to 0.74㎎/ℓ, nitrite and nitrate were ND(<0.01㎎/ℓ) - 0.06 ㎎/ℓ, 0.09㎎/ℓ - 1.33㎎/ℓ respectively. The range of phosphate level varied from ND(<0. 01㎎/ℓ) -0.24㎎/ℓ, and total phosphorus was fluctuated 0.04㎎/ℓ - 0.63㎎/ℓ. Algal growth potentials of the filtered and filtered after autoclaved samples were 0.1 ㎎/ℓ - 21.0㎎/ℓ and 2.9㎎/ℓ - 13.9㎎/ℓ respectively during surveyed period. AGP of the filtered after autoclaved were higer than those of the filtered only except some specific sites. The points of maximum growth were measured after addition of N, P, Fe and EDTA each in comparison with unenriched (control) samples. Phosphate appeared to be the major limiting element in AGP test for a tested organism throuhgout the year, especially during spring and summer. According to trophic level by Sudo(1980), it was estimated that Tong-Bok stream was eutrophic, Nae-Puk stream was oligo-mesotrophic, and all other streams of Lake Tong-Bok were mesotropic.