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Çѱ¹È¯°æ»ý¹°ÇÐȸ / v.28, no.4, 2010³â, pp.179-187
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µµ¼»ý¹°Áö¸®¼³ÀÇ °üÁ¡¿¡¼ ´ëÇü¹«Ã´Ãßµ¿¹° ±ºÁý ºñ±³
( A Comparative Study on a Macrobenthic Community Structure from the Theory of Island Biogeography ) |
| ¼Àμö;ÃÖº´¹Ì;±è¹ÌÇâ;À±À缺;¹ÚÀ翵;ÀÌ»ó¿±; ÇØ¾ç»ýűâ¼ú¿¬±¸¼Ò;ÇØ¾ç»ýűâ¼ú¿¬±¸¼Ò;ÇØ¾ç»ýűâ¼ú¿¬±¸¼Ò;ÇØ¾ç»ýűâ¼ú¿¬±¸¼Ò;ÇØ¾ç»ýűâ¼ú¿¬±¸¼Ò;ÇØ¾ç»ýűâ¼ú¿¬±¸¼Ò;
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| º» ¿¬±¸´Â °¡°Åµµ, ¼Òȵµ ¹× µ¶µµÇØ¿ª¿¡ ´ëÇÑ 2009³â 8¿ùÀÇ Á¶ÇÏ´ë ¾Ï¹ÝÁ¶»ç¸¦ ÅëÇØ¼ ÇØ¾ç»ýŰèÀÇ Áß¿ä ±¸¼º»ý¹° ÁßÀÇ ÇϳªÀÎ ´ëÇü¹«Ã´Ãßµ¿¹°ÀÇ »ý¹°´Ù¾ç¼º, »ý¹°·® ¹× ±ºÁý±¸Á¶¸¦ ÆÄ¾ÇÇϰí, À̸¦ ±âÃÊ·Î µµ¼»ý¹°Áö¸®¼³(The Theory of Island Biogeography)ÀÇ °üÁ¡¿¡¼ 3°³¼¶¿¡ ¼½ÄÇÏ´Â ´ëÇü¹«Ã´Ãßµ¿¹°ÀÇ À¯»ç¼º Á¤µµ¸¦ °ËÁõÇÏ¿´´Ù. ¿¬±¸ÇØ¿ª¿¡¼ ÃâÇöÇÑ ´ëÇü¹«Ã´Ãßµ¿¹°Àº ÃÑ 104Á¾, 7,176°³Ã¼(399 inds. $m^{-2}$)¿Í 27,120.68 g (1,506.70 g $m^{-2}$)À̾ú´Ù. ¿¬Ã¼µ¿¹°·ù´Â ÃâÇö Á¾¼ö, °³Ã¼¼ö ¹× »ýü·®¿¡ ÀÖ¾î¼ °¢°¢ ÀüüÀÇ 44.23%, 41.19% ¹× 90.32%¸¦ Á¡À¯ÇÏ¿© °¡Àå ¿ìÁ¡ÇÏ´Â »ý¹°±ºÀ̾ú´Ù. ¿¬±¸ÇØ¿ª¿¡¼ ÃâÇöÇÑ ´ëÇü¹«Ã´Ãßµ¿¹°ÀÇ °³Ã¼¼ö¿Í »ýü·®À» ±Ù°Å·Î »óÀ§ 10À§±îÁöÀÇ ¿ìÁ¡Á¾À» ¼±Á¤ÇÏ¿´´Ù. °³Ã¼¼ö¿¡ ±âÃÊÇÑ »óÀ§ 10À§ ¿ìÁ¡Á¾µéÀÌ Â÷ÁöÇÏ´Â ¹Ðµµ´Â 4,820°³Ã¼·Î ÀüüÀÇ 67.17%¸¦ Á¡À¯ÇÏ¿´´Ù. ƯÈ÷ ÀýÁöµ¿¹° °©°¢·ùÀÇ ¹Ìµ¿Á¤ ¿·»õ¿ì·ù(Amphipoda spp.)¿Í ¿¬Ã¼µ¿¹° ÀÌ¸ÅÆÐ·ùÀÇ °³Àû±¸(Modiolus agripetus)´Â °¢°¢ 1,580°³Ã¼, 22.02%¿Í 1,228°³Ã¼, 17.11%¸¦ Á¡À¯ÇÏ¿© ´ÜÀÏ Á¾À¸·Î °¡Àå ¿ìÁ¡ÇÏ´Â »ý¹°À̾ú´Ù. »ýü·®¿¡ À־µ »óÀ§ ¿ìÁ¡Á¾µéÀÌ ³ªÅ¸³»´Â »ýü·®Àº 25,942.80 gÀ¸·Î ÀüüÀÇ 95.66%¸¦ Â÷ÁöÇÏ¿´´Ù. ÀÌ °¡¿îµ¥ ÀÌ¸ÅÆÐ·ùÀÇ È«ÇÕ (Mytilus coruscus)°ú Å»ý±¼(Striostrea circumpicta)Àº °¢°¢ 15,167.64 g°ú 4,781.16 gÀ» ³ªÅ¸³» 55.93%¿Í 17.63%ÀÇ ³ôÀº Á¡À¯À²À» º¸¿´´Ù. ¿¬±¸ÇØ¿ª¿¡¼ ÃâÇöÇÑ ´ëÇü¹«Ã´Ãßµ¿¹°ÀÇ °³Ã¼¼ö¸¦ ±âÃÊ·Î ±ºÁýºÐ¼®À» ½Ç½ÃÇÑ °á°ú, ±ºÁýÀº Å©°Ô 2°³ÀÇ ±×·ìÀ¸·Î ³ª´µ¾ú´Ù. ±×·ì 1¿¡´Â °¡°Åµµ Á¤¼± 2ÀÇ ÇϺΠ¼ö½É Á¤Á¡À» Á¦¿ÜÇÑ °¡°Åµµ¿Í µ¶µµÀÇ ¸ðµç Á¤Á¡ÀÌ Æ÷ÇԵǾú°í, ±×·ì 2´Â À̸¦ Á¦¿ÜÇÑ Á¤Á¡µé·Î ±¸¼ºµÇ¾ú´Ù. ¿¬±¸ÇØ¿ª¿¡¼ °©°¢·ùÀÇ ¹Ìµ¿Á¤ÀÇ ¿·»õ¿ì·ù, ¹Ù´Ù´ë¹ú·¹·ù ¹× ¼º±¸µ¿¹°ÀÇ »ó¾î²®Áúº°¹ú·¹(Phascolosoma scolops)°¡ °øÅëÀûÀ¸·Î ¿ìÁ¡ÇÏ¿´´Ù. À̸¦ Á¦¿ÜÇϸé, ±×·ì 1¿¡¼´Â ´Ù¸ð·ùÀÇ °í¸®Åа¹Áö··ÀÌ(Eunice antennata), Syllidae unid., °©°¢·ùÀÇ ¸¸°¢·ù¿¡ ¼ÓÇÏ´Â »¡°µû°³ºñ(Megabalanus rosa) ¹× È«ÇÕÀÇ ¹Ðµµ°¡ ³ô¾Ò´Ù. ¹Ý¸é ±×·ì 2¿¡¼´Â °©°¢·ùÀÇ Áý°Ô·ù¿¡ ¼ÓÇÏ´Â °¹°¡°ÔºÙÀÌ(Petrolisthes japonicus), ¿¬Ã¼µ¿¹° º¹Á··ùÀÇ ÇÞ»ì¹ã°íµÕ (Lirularia pygmaea) ¹× ¿ÏÁ·µ¿¹°ÀÇ ¼¼·ÎÁÙÁ¶°³»çµ·(Coptothyris grayi)ÀÌ ´ëÇ¥ÀûÀÎ »ý¹°À̾ú´Ù. ÇÑÆí º» ¿¬±¸¿¡¼ ÃâÇö Á¾¼ö´Â ¼Òȵµ¿¡¼ °¡Àå ¸¹¾Ò°í, ´ÙÀ½À¸·Î °¡°Åµµ¿Í µ¶µµÀÇ ¼øÀ̾ú´Ù. °¢ ÇØ¿ªÀÇ ¸éÀû°ú À°Áö¿ÍÀÇ ¶³¾îÁü Á¤µµ¸¦ ±âÃÊ·Î µµ¼»ý¹°Áö¸®¼³¿¡ ±Ù°ÅÇϸé, ¿¬±¸ÇØ¿ª¿¡¼ÀÇ »ý¹°´Ù¾ç¼ºÀº µµ¼»ý¹°Áö¸®¼³¿¡ Á¤È®ÇÏ°Ô ÀÏÄ¡ÇÏ´Â °ÍÀº ¾Æ´ÏÁö¸¸ ºñ±³Àû Àß ºÎÇյǴ °ÍÀ¸·Î ÃßÁ¤µÈ´Ù. |
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| The Theory of Island Biogeography describes that the number of species on an island affected by island area and distance from the mainland. This study was performed to compare and analyze the community structure of the macro-invertebrates in three isolated islands, around Korean waters in terms of the Theory of Island Biogeography. Macrobenthic animals were collected using a modified underwater quadrat in August 2009. A total of 104 macrobenthic species were sampled with a mean density of 399 individuals $m^{-2}$ and biomass of 1,506.70 g $m^{-2}$. Based on the abundance and biomass data, there were 10 dominant species accounting for approximately 67.17% of total individuals. The highest densities were found in the amphipoda Amphipoda spp., the bivalvia Modiolus agripetus and Mytilus coruscus, the Sipunculida Phascolosoma scolops and the polychaeta Syllidae unid.. On the contrary, the top ten species made up 95.66% of the total biomass while the three most abundant, the bivalves M. coruscus, Streostria circumpicta and M. agripetus. The conventional multi-variate statistics (cluster analysis and non-metric multi-dimensional scaling) applied to assess spatial variation in macrobenthic assemblages. Cluster analysis and nMDS ordination analysis based on the Bray-Curtis similarity identified 2 station groups. The group 1 was consisted with Gageodo (except for lower station at Transect 2) and Dokdo station and was numerically dominated by the polychaetes Eunice antennata and Syllidae unid., the cirripedia Megabalanus rosa and the bivalvia M. coruscus. However, group 2 was associated with Sohwado station and was characterized by high abundance of the anomura Petrolisthes japonicus, the gastropoda Lirularia pygmaea and the brachiopoda Coptothyris grayi. In conclusion, these results suggested that the species diversity and community structure of macrobenthos in three isolated island seemed slightly related to island area and distance from the mainland. |
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| Ű¿öµå |
| macrobenthos;species diversity;community structure;The Theory of Island Biogeography;Gageodo;Sohwado;Dokdo; |
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ȯ°æ»ý¹° / v.28, no.4, 2010³â, pp.179-187
Çѱ¹È¯°æ»ý¹°ÇÐȸ
ISSN : 1226-9999
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201015441599392)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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