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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.42, no.2, 2009³â, pp.253-259
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°ÅºÏµîÀ±Ãæ (Keratella) Çǰ© ÇüÅÂÀÇ ¿¬µµ ¹× °èÀýº° º¯È
( The Annual and Seasonal Changes of Lorica Morphology in Keratella. ) |
| ¶ó±àȯ;ÃÖÁö¹Î;±èÇö¿ì; ¼øÃµ´ëÇб³ ȯ°æ±³À°Çаú;¼øÃµ´ëÇб³ ȯ°æ±³À°Çаú;¼øÃµ´ëÇб³ ȯ°æ±³À°Çаú;
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| ³«µ¿° ¹°±Ý Áö¿ª¿¡¼ äÁýµÈ µ¿¹°Çöûũſ Áß À±Ãæ·ùÀÎ Keratella ¼ÓÀ» ´ë»óÀ¸·Î 10³â ÀüÈÄ(1995, 1997, 2005 ±×¸®°í 2007)ÀÇ Á¾Á¶¼º º¯È¸¦ ºÐ¼®Çϰí, Çǰ©ÇüÅ¿¡ ´Ù¾çÇÑ º¯È¸¦ º¸ÀÌ´Â K. cochlearisÀÇ Çǰ© Å©±â, Èĵ¹±âÀÇ ¹ßÇö ¿©ºÎ ¹× ±æÀÌ ±×¸®°í Èĵε¹±â ±æÀÌÀÇ ¿¬µµ¿Í °èÀý¿¡ µû¸¥ º¯È¸¦ ÃøÁ¤ÇÏ¿´´Ù. Keratella ¼ÓÀÇ ¹Ðµµ´Â º½¿¡ ³ô°í °Ü¿ï¿¡ ³·Àº ¶Ñ·ÇÇÑ °èÀý¼ºÀ» º¸¿´´Ù. ±ºÁý ³»¿¡¼ K. cochlearis°¡ ¿ìÁ¡Á¾À̾úÀ¸¸ç »ó´ëdzºÎµµ´Â 1995³â°ú 1997³âº¸´Ù 2005³â°ú 2007³â¿¡¼ ³ô°Ô ³ªÅ¸³µ´Ù. ¿¬µµº° K. cochlearisÀÇ Çǰ© ÆøÀº À¯»çÇÏ¿´À¸³ª, Çǰ© ±æÀÌÀÇ °æ¿ì ¿©¸§¿¡ °¨¼ÒÇÏ°í °Ü¿ï¿¡ Áõ°¡Çϴ Ư¡À» º¸¿´´Ù. ¸ðµç ¿¬µµ¿¡¼ Èĵ¹±â¸¦ ¹ßÇöÇÏ´Â °³Ã¼ÀÇ ºñÀ²ÀÌ ³·¾Ò°í ƯÈ÷ ¿©¸§°ú °¡À»¿¡ ÃâÇöºóµµ°¡ ³·¾Ò´Ù. Èĵ¹±âÀÇ Æò±Õ ±æÀÌ´Â ¿©¸§¿¡ ª°í °Ü¿ï¿¡ ±æ¿´À¸¸ç Èĵε¹±â Æã±Õ ±æÀÌ´Â °Ü¿ï¿¡ °¡Àå ªÀº °ÍÀ¸·Î ³ªÅ¸³µ´Ù. |
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| We investigated annual and seasonal changes of Keratella spp. among rotifer community in the lower part of the Nakdong River (Mulgum) for four years (1995, 1997, 2005, 2007). As well, the annual and seasonal variations of lorica morphologies including sizes, posterior and anterior spines lengths in K. cochlearis were analyzed. The density of Keratella spp. showed distinct seasonality such as spring peak and winter scarcity. K. cochlearis was the most dominant species within Keratella spp. and the relative abundances of 2005 and 2007 were higher than 1995 and 1997. The lorica length and width of K. cochlearis did not show the annual changes between four years however, there was an obvious width decrease in summer and increase in winter. The proportion of individuals that has the posterior spine was relatively low throughout four years, especially at summer and autumn. K. cochlearis displayed short posterior spine in summer and long posterior spine in winter contrary to the anterior median and intermediate spines. |
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| Ű¿öµå |
| Keratella;lorica morphology;seasonal variation;spine;Nakdong River; |
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Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.42, no.2, 2009³â, pp.253-259
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200926158875930)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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