Marine macrophytes : Macroalgae species and life forms from Golden Beach, Similajau National Park, Bintulu, Sarawak, Malaysia

概要

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A study on macroalgae was carried out around Golden Beach, Similajau National Park during the month of April 2005. Collections and recordings of macroalgae species and life forms were conducted during low tide period. A total of 35 macroalgae were identified belonging to 27 genera comprising of 10 species (28.6%) Chlorophyta, 6 species (17.1%) Phaeophyta and 19 species (54.3%) Rhodophyta. Sargassum paniculatum, the common species inhabited the sand and rock substrates. Entero-morpha intestinalis, Hypnea cervicornis and Laurencia corymbosa encountered in this survey are in association with a bivalve, Perna sp. growing on sand substrate. Leveillea jungermannioides and Cladophora fuliginosa were observed attached to other macroalgae Cheilosporum jungermannioides and Hypnea cervicornis respectively. Caulerpa sertularioides was observed on sand substrate and among live corals. This is attributed to their rhizomaceous mode of growth enabling them to expand in this environment by vegetative means. Based on mode of attachment on substrate types, macroalgae life form categories are epilithic, epiphytic and rhizophytic. Epilithic macroalgae represents a big group compared to epiphytic and rhizophytic macroalgae. The epilithic category was represented in the three divisions of Chlorophyta, Phaeophyta and Rhodophyta.
東京大学の論文
2006-04-28