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Çѱ¹È¯°æ»ý¹°ÇÐȸ / v.26, no.2, 2008³â, pp.57-65
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ÁøÇظ¸¿¡¼ ºÐ¸®ÇÑ Á߽ɸñ ±ÔÁ¶·ù Skeletonema costatum(Grev.) CleveÀÇ ¼ºÀå¿¡ ¹ÌÄ¡´Â ±¤ÇÐÀû Ư¼º
( Optical Characteristic on the Growth of Centric Diatom, Skeletonema costatum (Grev.) Cleve Isolated from Jinhae Bay in Korea ) |
| ¿À¼®Áø;°Àμ®;À±¾çÈ£;¾çÇѼ·; ºÎ°æ´ëÇб³ ÇØ¾ç°úÇаøµ¿¿¬±¸¼Ò;Àü³²´ëÇб³ ´ëÇпø ¼ö»ê°úÇаú;Àü³²´ëÇб³ ´ëÇпø ¼ö»ê°úÇаú;ºÎ°æ´ëÇб³ ÇØ¾ç°úÇаøµ¿¿¬±¸¼Ò;
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| ÁøÇظ¸¿¡¼ ºÐ¸®ÇÑ Á߽ɸñ ±ÔÁ¶·ù S. costatumÀÇ ¼ºÀå¿¡ ¿µÇâÀ» ¹ÌÄ¡´Â ±¤·®°ú ÆÄÀåÀ» ¾Ë±â À§ÇØ ½Ç³» ½ÇÇèÀ» ¼öÇàÇÏ¿´´Ù. ¼ö¿Â 20$^{circ}C$¿Í ¿°ºÐ 30 psuÀÇ È¯°æÁ¶°Ç¿¡¼ ±¤·®°ú ¼ºÀåÀÇ °ü°è½ÄÀº $mu$=1.17 (I-5.25)/(I+81.8), (r=0.98)·Î ÃÖ´ë ¼ºÀå¼Óµµ´Â 1.17 day$^{-1}$, ¹ÝÆ÷ȱ¤·®(K$_s$)Àº 92.4 ${mu$mol photons $m^{-2}s^{-1}$ ±×¸®°í º¸»ó±¤·®(I$_0$)Àº 5.28 $mu$mol photon $m^{-2}s^{-1}$)·Î ³ªÅ¸³µ´Ù. ÁøÇظ¸¿¡¼ I$_0$¿¡ ÇØ´çÇÏ´Â ¼ö½ÉÀ» °è»êÇÑ °á°ú, 3¿ù¿¡¼ 5¿ùÀº 3$sim$5m, 6¿ùÀº 11m, 7¿ù¿¡¼ 9¿ùÀº 4m·Î ÁøÇظ¸¿¡¼ S. costatumÀº Ç¥Ãþ¿¡¼ Àß ¼ºÀåÇÒ °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ÇÏÁö¸¸ ±¤ÀúÇØÇö»óÀº 150 $mu$mol photons $m^{-2}s^{-1}$ ÀÌ»óÀÇ ±¤·®¿¡¼ ¼¼Æ÷¹ÐµµÀÇ °¨¼Ò¸¦ º¸¿©, S. costatumÀÇ ¼ºÀåÀ» À§ÇÑ ÃÖÀû ¼ö½ÉÀº »ó´çÈ÷ Á¦ÇѵǾî ÀÖÀ» °ÍÀ¸·Î »ç·áµÈ´Ù. ¼ºÀå¿¡ ¹ÌÄ¡´Â ÆÄÀåÀÇ ¿µÇâÀ» ¾Ë±â À§ÇØ ¹ß±¤ ´ÙÀÌ¿Àµå¸¦ ÀÌ¿ëÇÏ¿© ±ÙÀڿܼ± ¿µ¿ªºÎÅÍ ±ÙÀû¿Ü¼±¿µ¿ªÀ» Æ÷ÇÔÇÏ´Â 9°³ ÆÄÀå ºûÀ» ÁÖ»çÇÏ¿´´Ù. 25 $mu$mol photons $m^{-2}s^{-1}$¿¡¼ S. costatumÀº 405, 470, 505, 525, 568, 644 nm¿¡¼ ¼ºÀåÀ» ÇÏ¿´Áö¸¸, 590m¿Í 523nm¿¡¼´Â ¼ºÀåÇÏÁö ¸øÇÏ¿´´Ù. ÇÏÁö¸¸ 100 $mu$mol photons $m^{-2}s^{-1}$´Â ¸ðµç ÆÄÀå´ë¿¡¼ Àß ¼ºÀåÇÏ¿´´Ù. µû¶ó¼ S. costatumÀº Ȳ»öÆÄÀå´ë°¡ ¿ìÁ¡ÇÏ´Â Æó¼â¼º ¿¬¾È¿ª¿¡¼ ÃæºÐÈ÷ Àß ¼ºÀåÇÒ ¼ö ÀÖÀ» °ÍÀ¸·Î ÆÇ´ÜµÈ´Ù. |
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| The effects of light quality and irradiance on the growth of centric diatom, Skeletonema costatum (Jinhae Bay strain) were investigated in the laboratory. At 20$^{circ}C$ and 30 psu, the irradiance-growth curve showed the maximum growth rate of 1.17 day$^{-1}$ with half-saturation photon flux density (PFD) (K$_s$) of 92.4 $mu$mol photons $m^{-2}s^{-1}$, $mu$=1.17 (I-5.28)/(I+81.8), (r=0.98), and a compensation PFD (I$_0$) was 5.28 $mu$mol photons $m^{-2}s^{-1}$. The 10 equated to a depth of 3$sim$5 m from March to May, 11 m in June and 4 m from July to September in Jinhae Bay. These responses suggested that irradiance at the depth near the surface layer in Jinhae Bay would provide favorable conditions for S. costatum. To assess the effects of light (i.e. wavelengths) on the growth, nine wave-lengths were used ranging from near ultraviolet to near-infrared supplied by light emitting diode. At an irradiance level of 25 $mu$mol photons $m^{-2}s^{-1}$, S. costatum grew under wavelengths of 405, 470, 505, 525, 568 and 644 nm, but did not grow at 590 and 623 nm; whereas S. costatum grew at all wavelengths at 100 $mu$mol photons $m^{-2}s^{-1}$. This implies that S. costatum is likely to grow well in enclosed water bodies where suspended particles absorbs most of the blue wavelengths, and dominated by yellow-orange wavelengths. |
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| Ű¿öµå |
| Jinhae Bay;centric diatom;Skeletonema costatum;irradiance;wavelength; |
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ȯ°æ»ý¹° / v.26, no.2, 2008³â, pp.57-65
Çѱ¹È¯°æ»ý¹°ÇÐȸ
ISSN : 1226-9999
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200820258463313)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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