Ocean and Polar Research

Korea Institute of Ocean Science & Technology (한국해양과학기술원)
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Occurrence of Green Macroalgae (Ulva prolifera) Blooms in the Northern East China Sea in Summer 2008

2008년 여름철 북부 동중국해에서 대규모 녹조(가시파래) 출현

  • 최동림 (한국해양연구원 남해연구소) ;
  • 노재훈 (한국해양연구원 해양생물자원연구부) ;
  • 유주형 (한국해양연구원 해양위성센터) ;
  • 이재학 (한국해양연구원 기후.연안재해연구부) ;
  • 장풍국 (한국해양연구원 남해연구소) ;
  • 이태희 (한국해양연구원 남해연구소) ;
  • 최동한 (한국해양연구원 해양생물자원연구부)
  • Received : 2010.08.12
  • Accepted : 2010.09.24
  • Published : 2010.12.30
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Abstract

This study examined extensive patches of floating green macroalgal (Ulva prolifera) mats in the northern East China Sea (ECS) using satellite images from mid May through July 2008 and field observation made during early August 2008 cruise. It was previously reported that the massive macroalgal blooms occurred in the coastal areas of Qingdao in China. During our field survey, researchers noticed widely distributed floating patches of macroalgal mats ranging in size from tens of centimeters to a few hundred meters in diameter. Meteorological data in the northern ECS showed high irradiance, high air-temperature, and predominant southerly winds in summer. In the study area during the survey period, surface waters were characterized by the Changjiang Diluted Water (CDW) mass, which contained high concentrations of nitrate and phosphate. The internal transcribed spacer (ITS) sequence of U. prolifera found in the northern ECS was the same as those of U. prolifera sampled from Qingdao blooms, suggesting a possibility that U. prolifera found in two regions would be derived from the same origin. We suggest that U. prolifera in the nearshore Jiangsu Province drifted into the northern ECS and proliferated under favorable meteorological and oceanographic conditions during the summer of 2008.

Keywords

References

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