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Çѱ¹»ýÅÂÇÐȸ / v.17, no.1, 1994³â, pp.79-90
±º»ê ÀÎ±Ù ÇØ¿ª¿¡¼­ Á¾¼Ó¿µ¾ç ¼¼±ÕÀÇ ºÐÆ÷, Æò±ÕüÀû ¹× ¼¼Æ÷¿Ü È¿¼ÒȰ¼º·Â
( Distribution, Biovolume and Extracellular Enzyme Activities of Heterotrophic Bacteria in the Sea near Kunsan,Korea )
À̰ÇÇü;±èÀç¿ø;±èÁ¤Èñ; ±º»ê´ëÇб³ ÀÚ¿¬°úÇдëÇÐ »ý¹°Çаú;±º»ê´ëÇб³ ÀÚ¿¬°úÇдëÇÐ »ý¹°Çаú;±º»ê´ëÇб³ ÀÚ¿¬°úÇдëÇÐ »ý¹°Çаú;
 
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1991³â 11¿ùºÎÅÍ 1992³â 8¿ù±îÁö ÃÑ 8ȸ¿¡ °ÉÃÄ ±Ý°­Çϱ¸¿¡¼­ °í±º»ê±ºµµ±îÁö 6°³ Á¤Á¡À» ´ë»óÀ¸·Î Á¾¼Ó¿µ¾ç ¼¼±ÕÀÇ ºÐÆ÷¿Í Æò±ºÃ¼Àû ¹× ¼¼Æ÷¿Í È¿¼ÒȰ¼ºÀ» ÃøÁ¤ÇÏ¿´´Ù. ÇØ¾ç¼º Á¾¼Ó¿µ¾ç ¼¼±ÕÀº 1.0X103~5X105 c.f.u./mlÀÇ ¹üÁÖ¿¡¼­ ºÐÆ÷ÇÏ¿´À¸¸ç, °£±ÕÀÌ 45~72%¸¦ Â÷ÁöÇÏ¿´´Ù. ¶ÇÇÑ ±¸±ÕÀÇ Æò±ÕüÀûÀº (7.69$pm$0.18)X10-2~(8.18$pm$0.38)X10-2$mu$m3, °£±ÕÀº (6.09$pm$0.29)X10-2~(7.72$pm$0.41)X10-2$mu$m3ÀÇ ¹üÁÖ¿¡¼­ º¯È­ÇÏ¿´´Ù. ¼¼Æ÷¿Ü È¿¼ÒȰ¼ºµµ¸¦ ÃøÁ¤ÇÑ °á°ú, glucosidaseÀÇ È°¼ºÀº 0~3.49$mu$M/l/hr, chitinaseÀÇ È°¼ºÀº 0~1.25$mu$M/l/hr, phosphatase´Â 0~11.95$mu$M/l/hr, amylase´Â 0~3.80$mu$M/l/hrÀÇ ¹üÁÖ¿¡¼­ ÃøÁ¤µÇ¾î ¼¼Æ÷¿Ü È¿¼ÒȰ¼ºÀº ¿©¸§Ã¶¿¡ ³ôÀº °ªÀ» º¸¿´À¸¸ç, ÃøÁ¤È¿¼ÒÁß phosphataseÀÇ È°¼ºÀÌ °¡Àå ³ô¾Ò´Ù. Á¾¼Ó¿µ¾ç ¼¼±ÕÀÇ ºÐÆ÷¿Í ¼¼Æ÷¿Ü È¿¼ÒȰ¼ºÀº ¼ö¿Â°ú À¯ÀԵǴ À¯±â¹°ÀÇ ¾ç°ú ¹ÐÁ¢ÇÑ °ü°è°¡ ÀÖ¾úÀ¸¸ç, ¼¼±ÕÀÇ Ã¼ÀûÀÇ Å©±â´Â ¼¼Æ÷¿Ü È¿¼Ò Ȱ¼º°ú´Â Á÷Á¢ÀûÀÎ °ü°è°¡ ¾ø¾ú´Ù.
Water samples were taken at 6 stations from the mouth of Keum River to Kogunsan Archipelago of West Sea during December, 1991 to August, 1992, to determine the distribution of heterotrophic bacteria, their biovolumes and heterotrophic activities. Heterotrophic marine bacteria ranged from $1.0;{ imes};10^3to;5;{ imes};10^5c.f.u.$ /ml. As for morphological distribution measured by epifluorescence microscopy, rod-shaped bacteria were between 45% and 72% of all cells during investigation period. Average biovolume of sampled bacteria ranged from $(7.69;{pm};0.18);{ imes}10^{-2}to;(8.18;{pm};0.38);{ imes};10^{-2};{mu}m^3$ for coccoid bacteria, and from $(6.09;{pm};0.29);{ imes}10^{-2}to;(7.72;{pm};0.41);{ imes};10^{-2};{mu}m^3$ for rod-shaped ones. The activities of extracellular enzymes ranged from 0.01 to 2.6 ${mu}M$ /l /hr for glucosidase, from 0.01 to 2.6 ${mu}M$ /l /hr for amylase, from 0.01 to 8.86 ${mu}M$ /I /hr phosphatase and from 0.01 to 0.94 ${mu}M$ /l /hr for chitinase. Extracellular enzyme activities were higher in summer season than in other sampling periods, and phosphatase showed the highest activity among measured extracellular enzymes. Bacterial distribution and their extracellular enzyme activities were associated with water temperature and organic nutrients, but bacterial cell volumes showed no direct relationship with extracellular enzyme activities.
 
Ű¿öµå
Bacterial distribution;Biovolume;Heterotrophic activity;West Sea;
 
The Korean Journal of Ecology / v.17, no.1, 1994³â, pp.79-90
Çѱ¹»ýÅÂÇÐȸ
ISSN : 1225-0317
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199411919966124)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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