The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY (한국해양학회지:바다)

The Korean Society of Oceanography (한국해양학회)
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Occurrence and Food Ingestion of the Moon Jellyfish (Scyphozoa: Ulmariidae: Aurelia aurita) in the Southern Coast of Korea in Summer

하계 한국 남해안 보름달물해파리 (Scyphozoa: Ulmariidae: Aurelia aurita)의 출현 및 먹이섭취 습성

  • 강영실 (국립수산과학원 동해수산연구소) ;
  • 박미선 (국립수산과학원 동해수산연구소 증식부)
  • Published : 2003.05.01
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Abstract

Monthly occurrence of the moon jellyfish (Scyphozoa: Ulmariidae: Aurelia aurita) was investigated in the southern coast of Korea in summer. The relationships not only between weight and length but also between length and food (rotifer and Artemia sp.) ingestion were also studied. Aurelia was monthly sampled 5 or 6 times at the coastal area between Jinhae and Geoje-do with a landing net (mouth: 30 cm, mesh size: 2 cm) at surface from June to August,2001. Aurelia aurita was dominated by 6-9 cm in June, 7-16 cm in July and 16 cm in August in bell diameter. The bell diameter was significantly related with weight (r=0.930, P<0.001). The ingestion rate was significantly different according to bell diameter and food density (ANOVA test: P<0.001).

하계 한국남해안에서 보름달물해파리(Scyphozoa: Ulmariidae: Aurelia aurita)의 월별 출현 및 크기와 중량간의 상관성을 연구하였다. 또한 Rotifer와 Artemia sp.를 먹이생물로 하여 먹이섭취 습성을 분석하였다. 보름달물해파리는 크기와 중량간에 상관성이 매우 높았으며 (r=0.930, P<0.001), 6월에는 크기가 6∼9 cm, 7월에는 7∼16 cm, 8월에는 16 cm인 개체가 우점하였다. 먹이섭취율은 크기와 먹이농도에 따라 유의한 차이가 있었다(ANOVA test: P<0.001).

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References

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