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

A long-term ecological monitoring of subtidal macrozoobenthos around Dokdo waters, East Sea, Korea
A long-term ecological monitoring of subtidal macrozoobenthos around Dokdo waters, East Sea, Korea
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.
Biodiversity hotspot, Dokdo, East Sea, Island ecology, Macrofauna, Spatiotemporal variations
0025-326X
111226
Kim, Hyeong-gi
d076978e-b593-4740-8708-62ea0e4dbc81
Song, Sung Joon
d5e0b772-3c0b-446d-8d68-a009579371dd
Lee, Heegab
06514b0b-8a69-4c62-af65-b177693dcdf3
Park, Chan Hong
e35f2792-f615-42bf-b8e6-33d984e14565
Hawkins, Stephen J.
758fe1c1-30cd-4ed1-bb65-2471dc7c11fa
Khim, Jong Seong
8e39635d-b468-4d06-8e3e-9919c810762a
Rho, Hyun Soo
8796dbf9-cfc3-4c19-9146-c9c19c6abda7
Kim, Hyeong-gi
d076978e-b593-4740-8708-62ea0e4dbc81
Song, Sung Joon
d5e0b772-3c0b-446d-8d68-a009579371dd
Lee, Heegab
06514b0b-8a69-4c62-af65-b177693dcdf3
Park, Chan Hong
e35f2792-f615-42bf-b8e6-33d984e14565
Hawkins, Stephen J.
758fe1c1-30cd-4ed1-bb65-2471dc7c11fa
Khim, Jong Seong
8e39635d-b468-4d06-8e3e-9919c810762a
Rho, Hyun Soo
8796dbf9-cfc3-4c19-9146-c9c19c6abda7

Kim, Hyeong-gi, Song, Sung Joon, Lee, Heegab, Park, Chan Hong, Hawkins, Stephen J., Khim, Jong Seong and Rho, Hyun Soo (2020) A long-term ecological monitoring of subtidal macrozoobenthos around Dokdo waters, East Sea, Korea. Marine Pollution Bulletin, 156, 111226, [111226]. (doi:10.1016/j.marpolbul.2020.111226).

Record type: Article

Abstract

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.

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Accepted/In Press date: 23 April 2020
e-pub ahead of print date: 13 May 2020
Published date: 1 July 2020
Keywords: Biodiversity hotspot, Dokdo, East Sea, Island ecology, Macrofauna, Spatiotemporal variations

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Local EPrints ID: 441490
URI: http://eprints.soton.ac.uk/id/eprint/441490
ISSN: 0025-326X
PURE UUID: 7cb2fbe0-846f-4c1c-814f-dce319defea2

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Date deposited: 16 Jun 2020 16:30
Last modified: 28 Apr 2022 05:53

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Contributors

Author: Hyeong-gi Kim
Author: Sung Joon Song
Author: Heegab Lee
Author: Chan Hong Park
Author: Jong Seong Khim
Author: Hyun Soo Rho

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