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Çѱ¹È¯°æ»ýÅÂÇÐȸ / v.25, no.2, 2011³â, pp.123-131
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¸ñ½ÃÁ¶»ç(Sighting survey)¿¡ ÀÇÇÑ µ¿ÇØ º½Ã¶ ÇØ¾ç¼º Á¶·ùÀÇ ºÐÆ÷ ¾ç»ó
( Seabird Distribution Patterns by Sighting Survey in the East Sea in Spring ) |
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2007³â 4¿ùºÎÅÍ 5¿ù±îÁö ½ÃÇèÁ¶»ç¼±À» ÀÌ¿ëÇÏ¿© µ¿ÇØÀÇ ÇØ¾ç¼º Á¶·ù ºÐÆ÷Á¶»ç¸¦ ½Ç½ÃÇÏ¿´´Ù. Á¶»ç ±â°£ µ¿¾È µ¿ÇØ ¿¬¾È¿¡¼ ÃÑ 10°ú 23Á¾ 1,379°³Ã¼ÀÇ Á¶·ù°¡ °üÂûµÇ¾úÀ¸¸ç, ÀÌ Áß 6°ú 14Á¾ 1,324°³Ã¼´Â ÇØ¾ç¼º Á¶·ù¿´´Ù. ÇØ¾ç¼º Á¶·ùÀÇ ¹ß°ßÀ²Àº 2.5 birds $km^{-2}$¿´´Ù. °¡Àå ³ôÀº ¹ß°ßÀ²À» º¸ÀÎ Á¾Àº ½¿»õ(Calonectris leucomelas)·Î Àüü °üÂû°³Ã¼¼öÀÇ 74.5%¸¦ Â÷ÁöÇÏ¿´´Ù. À̹ۿ¡ ¹ß°ßµÈ Á¶·ù Áß 1% ÀÌ»óÀ» Â÷ÁöÇÑ ÁÖ¿äÁ¾Àº ¹Ù´Ù¼è¿À¸®(Synthliboramphus antiquus)(8.3%), ¾Æºñ(Gavia stellata)(5.0%), Á¦ºñ°¥¸Å±â(Sterna hirundo)(2.1%), ȸ»ö¸Ó¸®¾Æºñ(Gavia pacifica) (2.0%), ±ªÀ̰¥¸Å±â (Larus crassirostris)(1.1%) ¼øÀ¸·Î ³ªÅ¸³µ´Ù. ÇØ¾ç¼º Á¶·ùÀÇ °³Ã¼¼ö´Â µ¿ÇØ Áß³²ºÎ ÇØ¿ªÀÎ $36^{circ}N{sim}37^{circ}N$ »çÀÌ¿¡¼ °¡Àå ¸¹¾ÒÀ¸³ª Á¾´Ù¾çµµ Áö¼ö(H')´Â µ¿ÇØ ³²ºÎ ÇØ¿ªÀÎ $35^{circ}N{sim}36^{circ}N$¿¡¼ °¡Àå ³ôÀº °ªÀ» º¸¿´´Ù. ¹ß°ßµÈ ´ëºÎºÐÀÇ Á¾Àº ÇØ¾È¼±¿¡¼ºÎÅÍ ¸Ö¾îÁú¼ö·Ï ¹ß°ßÀ²ÀÌ ÁÙ¾îµé¾ú´Ù. ¹ß°ßµÈ ÁÖ¿äÁ¾ À̿ܿ¡µµ »Ô¼è¿À¸®(Synthliboramphus wumizusume), ÈòºÎ¸®¾Æºñ(Gavia adamsii), ¼èºÎ¸®½¿»õ(Puffinus tenuirostris), ºÓÀº¹ß½¿»õ(Puffinus carneipes)¿Í °°Àº Èñ±ÍÁ¾À» °üÂûÇÏ¿´´Ù. º» Á¶»ç¿Í µ¿½Ã¿¡ ÇàÇØÁø ¹ÖÅ©°í·¡(Balaenoptera acutorostrata) ¸ñ½ÃÁ¶»çÀÇ ÀڷḦ ÅëÇØ º¼ ¶§ ½¿»õÀÇ ºÐÆ÷ ÆÐÅϰú ¹ÖÅ©°í·¡ÀÇ ºÐÆ÷ ÆÐÅÏ »çÀÌ¿¡¼ ³ôÀº »ó°ü°ü°è¸¦ ³ªÅ¸³Â´Ù. ¾Æºñ·ù(Gavia spp.)ÀÇ ºÐÆ÷´Â °ø°£ÀûÀ¸·Î ºÐ¸®µÇ´Â ¾ç»óÀ» º¸¿´´Ù. |
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Seabird distribution in the East Sea was studied from April to May 2007 using line transect counts. We observed a total of 1,379 individuals of 23 species including 14 species of seabird. The overall seabird sighting rate was 2.5 birds $km^{-2}$. The Streaked shearwater(Calonectris leucomelas)(74.5%) was the numerically dominant species. Ancient murrelets(Synthliboramphus antiquus)(8.3%), red-throated divers(Gavia stellata)(5.0%), common terns(Sterna hirundo)(2.1%), Pacific divers(Gavia pacifica)(2.0%), and black-tailed gulls (Larus crassirostris)(1.1%) were also frequently observed. The sightings of seabirds was highest between $36^{circ}N$ and $37^{circ}N$ of the coastal area of the Korean peninsular. However, the index of species diversity(H') was higher between $35^{circ}N$ and $36^{circ}N$. The sighting rates of most observed species decreased with distance from the coastline. The distribution patterns of Streaked shearwater were linked to the variation in the distribution pattern of minke whales(Balaenoptera acutorostrata). Also, spatial segregation was found in the distributions of the two species of divers(Gavia spp.). |
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Ű¿öµå |
¼±ÇüÁ¶»ç¹ý;¹ß°ßÀ²;¿ìÁ¡Á¾;Á¾´Ù¾çµµÁö¼ö;LINE TRANSECT COUNTS;SIGHTING RATES;DOMINANT SPECIES;INDEX OF SPECIES DIVERSITY; |
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Çѱ¹È¯°æ»ýÅÂÇÐȸÁö / v.25, no.2, 2011³â, pp.123-131
Çѱ¹È¯°æ»ýÅÂÇÐȸ
ISSN : 1229-3857
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201119240636139)
¾ð¾î : Çѱ¹¾î |
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³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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