남해안에서 자생하는 거머리말 ( Zostera Marina L. ) 식물의 분포와 생육지 환경 = The Distribution and Habitation Characteristics of Zostera marina L. along the Southern Coast of Korea

다국어 초록 (Multilingual Abstract)

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다국어 초록 (Multilingual Abstract)

An ecological study was conducted to determine the geographic distribution, community structure, and habitat characteristics of eelgrass, Zostera marina L. beds along the southern coast of Korea. Plants and sediment samples were collected during June 2000 and December 2000 on twenty-eight locations, including two Cheju Island stations, which were used to compare morphological characteristics with habitat types. Z. marina populations existed from the intertidal to subtidal zone, mainly in the bays along the coast and the island, the barrier reef, and the estuary where the water depth was 0.5∼8.0m. Salinity range in Z. marina beds ranged 18.2 to 34.5‰. Sediments of Z. marina beds contained 49.7∼99.1% of sand and were classified into sand, muddy sand, and sandy mud. Mean grain size varied from 1.5 to 4.4 phi. Height of vegetation shoots varied from 54.7 to 171.4㎝, depending on water depth, location, substrata and habitat types. Quantitative morphological features that enabled recognition of the two phenetic groups were short-narrow leaf type and long-broad leaf type. Statistical analysis indicated that biomass of individual plants and their quantitative morphological characteristics were significantly correlated.