Korean Journal of Environmental Biology (환경생물)

Korean Society of Environmental Biology (한국환경생물학회)
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Monthly variations in macroalgal flora and community structure in Hampyong Bay, Southwestern Coast of Korea

한국 남서해안 함평만의 월별 해조상 및 군집구조 변화

  • Oh, Byoung-Geon (Koguryeo College) ;
  • Choi, Han Gil (Faculty of Biological Science and Institute of Basic Natural Sciences, Wonkwang University)
  • Received : 2021.02.16
  • Accepted : 2021.03.03
  • Published : 2021.03.31
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Abstract

The monthly variability in marine algal flora and community structure was examined in the intertidal zones of Doripo, and the biomass of an edible alga, Ulva prolifera, at Gaip-ri of Hampyong Bay on the southwestern coast of Korea was investigated over one year from April 2008 to March 2009. A total of 22 seaweeds were identified including five green, four brown, and 13 red algae. Based on importance value, Ulva australis was dominant over the year and the subdominant species were Ulva linza and Caulacanthus ustulatus at the Doripo coast of Hampyong Bay. The vertical distribution in terms of importance values was in the order of Ulva linza - C. ustulatus - U. australis - Sargassum thunbergii from the upper to the lower intertidal zones. The biomass of U. prolifera ranged between 2.4-98.2 g dry wt. m-2, with a maximum in June and a minimal in November. In the field, U. prolifera biomass could be positively related to seawater temperature. However, further research on the association between biomass and other environmental factors such as nutrients and light intensity is required.

2008년 4월부터 2009년 3월까지 1년간 우리나라 서남해안 함평만의 도리포에서는 조간대의 해조류 식물 군집과 가입리에서는 식용 해조류 가시파래의 월별 변동성을 매월 조사하였다. 조사된 해조류는 총 22종이었으며, 녹조류 5종, 갈조류 4종 그리고 홍조류 13종이었다. 함평만 도리포 암반 조간대에서 연간 우점하는 해조류는 구멍갈파래였고, 준 우점종은 잎파래와 애기가시덤불이었다. 조간대 상부에서 하부에 이르는 수직분포는 잎파래 - 애기가시덤불 - 구멍갈파래 - 지충이었다. 가시파래의 생물량은 6월에 최대를 보였고 11월에 최소를 보였으며, 2.4-98.2 g dry wt. m-2 범위를 나타냈다. 가시파래의 생물량은 수온과 연관이 있어 보이지만 영양염류 및 빛의 강도 같은 기타 환경요인과의 관계는 추후 지속적인 연구가 요구된다.

Keywords

Acknowledgement

이 논문은 2008년 환경부의 장기생태연구 지원에 의하여 수행되었습니다.

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