남해안 신지도의 해조군집

Benthic Marine Algal Communities of Shinjido, Southern Coast of Korea

  • HWANG Eun-Kyoung (Department of Aquaculture, Pukyong National University) ;
  • PARK Chan-Sun (Wando Fisheries Hatchery, National Fisheries Researches and Development Agency) ;
  • KOH Nam-Pyo (Department of Aquaculture, Yosu National Fisheries University) ;
  • SOHN Chul-Hyun (Department of Aquaculture, Pukyong National University)
  • 발행 : 1997.07.01

초록

남해안 신지도 주변 해조군집의 종조성과 군집 구조 분석을 통하여 이 지역 해조 군집의 특성을 구명하고자 하였다. 이 연구에서 출현한 종은 총 120종으로 녹조류 15종, 갈조류 31종, 홍조류 74종이었다. 이들중 87종이 강독에서 그리고 104종이 동고리에서 출현하였다. 조간대 식생은 크게 3그룹으로 구분되며, 대표적인 종들로는 상부에서 Enteromorpha compressa, Ulva Pertusa, Porphyra suborbiculata, Ishige okamurae, 중부에서는 Hizikra fusiformis, Sargassum thunbergii, Gigartina intermedia, Corallina pilulifera, 하부에는 Pachymeniopsis elliptica, Gelidium amansii, Sargassum homeri 등이 분포하였다. 중요도 값이 높게 나타난 종은 Ulva pertusa, Ishige ekamurae, Hizikia fuisformis, Sargassum thunbergii, Corallina pilulifera, Gelidium amansii, Gigartina tenella로 조사지점 모두에서 공통적으로 나타났다. 기능형군별 분석에서 나타난 비율은 직립분기형 $36.7\%$, 사상형 $27.5\%$, 엽상형 $15.8\%$, 다육질형 $10.0\%$, 유절산호말형 $5.0\%$, 각상형 $5.0\%$로 나타났다.

Benthic marine algae of Shinjido located on the southern coast of Korea have been investigated to know the floristic composition and community structure. The study was conducted from the intertidal to subtidal zones at two different locations (Kangdok and Donggori) using a line transect method from January to October, 1994. A total of 120 species of marine algae were identified, and they includes 15 green algae, 31 brown algae and 74 red algae. Of these, 87 and 104 species of marine algae occurred at Kangdok and Donggori, respectively. Algal vegetations were divided into three different zonations: the upper, the middle and the lower zones. The representative species are Enteromorpha compressa, Ulva pertusa, Porphyra suborbiculata, lshige okamurae in the upper zone; Hizikia fusiformis, Sargassum thunbergii, Gigatina intermedia, Corallina pilulifera in the middle zone; Pachymeniopsis elliptica, Gelidium amansii, Sargassum horneri in the lower zone. In terms of biomass the dominant species were U. pertusa, I. okamurae, H. fusiformis, C. thunbergii, C. pilulifera, C. amansii, C. tenella. The flora could be classified into six functional form groups such as the coarsely branched form $(36.7\%)$ the filamentous form $(27.5\%)$, the sheet form $(15.8\%)$, the thick leathery form $(10.0\%)$, the jointed calcarious form $(5.0\%)$ and the crustose form $(5.0\%)$.

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