한빛사 논문
서울대학교
Abstract
Bong-Oh Kwona,1, Hosang Kima,1, Junsung Noha, Shing Yip Leeb, Jungho Namc, Jong Seong Khima.*
aSchool of Earth and Environmental Sciences & Research Institute of Oceanography, Seoul National University, Seoul, 08826, Republic of Korea
bSimon F S Li Marine Science Laboratory, School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
cMarine Policy Research Division, Korea Maritime Institute, Busan, 49111, Republic of Korea
*Corresponding author.
1These authors contributed equally to this work.
Abstract
The ecological role of intertidal microphytobenthos (MPB) is increasingly recognized in coastal production systems. MPB primary production (PP) measured in coastal wetlands of Korea, Cambodia, and Australia confirmed large variability at the global scale. Surprisingly, MPB biomass in mangrove forests almost doubled those measured in nearby bare tidal flats. However, MPB productivity (Pb) in vegetated habitats was significantly reduced (by ~50%) compared to that on bare tidal flats. Extensive measurements of MPB biomass, PP, and Pb across 12 Korean tidal flats revealed large spatiotemporal variations, suggesting complex sediment-MPB coupled dynamics. The key factors included sediment type, tide, bed elevation, irradiation, temperature, and vegetation. Winter MPB blooms and the elevated Pb seem to be unique characteristics of the Korean intertidal flats. The present study provides the baseline data of MPB PPs in mudflat, saltmarsh, and mangrove habitats in the highly productive zones of the Western Indo-Pacific Rim.
Keywords:
Primary productivity; Benthic microalgae; Halophytes; Coastal ecosystem; Tidal flat ecology; Asia
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