A long-term ecological monitoring of subtidal macrozoobenthos around Dokdo waters, East Sea, Korea

MARINE POLLUTION BULLETIN

卷:156

Article

Kim, Hyeong-Gi^1,2  Song, Sung Joon^1,2  Lee, Heegab³  Park, Chan Hong³  Hawkins, Stephen J.^4,5  Khim, Jong Seong^1,2  Rho, Hyun Soo³ 

[1] Seoul Natl Univ, Sch Earth & Environm Sci, Seoul 08826, South Korea

[2] Seoul Natl Univ, Res Inst Oceanog, Seoul 08826, South Korea

[3] Korea Inst Ocean Sci & Technol, Gyeongbuk 36315, South Korea

[4] Univ Southampton, Natl Oceanog Ctr Southampton, Ocean & Earth Sci, Southampton SO14 3ZH, Hants, England

[5] Marine Biol Assoc UK, The Lab, Citadel Hill, Plymouth PL1 2PB, Devon, England

关键词: Dokdo;    East Sea;    Macrofauna;    Island ecology;    Spatiotemporal variations;    Biodiversity hotspot;   

DOI  :  10.1016/j.marpolbul.2020.111226

来源: Elsevier

【 摘 要 】

Dokdo's high marine biodiversity has received worldwide attention recently. A total of 578 macrozoobenthos are recorded since the 1960s, but ecology of Dokdo's fauna is unknown. We monitored Dokdo's subtidal macrozoobenthos for 5 years in 2013-17, in the present study. Five stations representing three subtidal habitats were monitored; 1) oceanic plateau, 2) coastal terrace, and 3) island wharf. In total, 13,664 individuals belonging to 141 taxa were recorded during the survey. The number of species and density varied greatly among stations without distinct year-round variation. Faunal compositions significantly differed in time and space, reflecting varied faunal adaptations in a harsh environment. Whilst, temporal stability in faunal assemblages was evidenced for some dominant or cosmopolitan taxa. High spatial heterogeneity reflects site-specific oceanographic conditions. Meantime, sea-surface temperature and wave action were associated with year-round faunal compositions. Overall, the Dokdo's macrozoobenthos significantly contribute to marine biodiversity of the East Sea.

【 授权许可】

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