Collection of large benthic invertebrates in sediment traps in the Amundsen Sea, Antarctica SCIE SCOPUS

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Title
Collection of large benthic invertebrates in sediment traps in the Amundsen Sea, Antarctica
Author(s)
Kim, Minkyoung; Yang, Eun Jin; Kim, Hyung Jeek; Kim, Dongseon; Kim, Tae-Wan; La, Hyoung Sul; Lee, SangHoon; Hwang, Jeomshik
KIOST Author(s)
Kim, Hyung Jeek(김형직)Kim, Dong Seon(김동선)
Publication Year
2019-07-11
Abstract
To study sinking particle sources and dynamics, sediment traps were deployed at three sites in the Amundsen Sea for 1 year from February-March 2012 and at one site from February 2016 to February 2018. Unexpectedly, large benthic invertebrates were found in three sediment traps deployed 130-567m above the sea floor. The organisms included long and slender worms, a sea urchin, and juvenile scallops of varying sizes. This is the first reported collection of these benthic invertebrates in sediment traps. The collection of these organisms, predominantly during the austral winter, and their intact bodies suggests they were trapped in anchor ice, incorporated into the overlying sea ice, and subsequently transported by ice rafting. The observations imply that anchor ice forms episodically in the Amundsen Sea and has biological impacts on benthic ecosystems. An alternative hypothesis that these organisms spend their juvenile period underneath the sea ice and subsequently sink to the seafloor is also suggested.
ISSN
1726-4170
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/578
DOI
10.5194/bg-16-2683-2019
Bibliographic Citation
BIOGEOSCIENCES, v.16, no.13, pp.2683 - 2691, 2019
Publisher
COPERNICUS GESELLSCHAFT MBH
Subject
SINKING PARTICLE-FLUX; ANCHOR ICE FORMATION; FORMATION SITES; MCMURDO SOUND; ENTRAINMENT; TRANSPORT; SHELF
Type
Article
Language
English
Document Type
Article
Publisher
COPERNICUS GESELLSCHAFT MBH
Related Researcher
Research Interests

Particle flux,Carbon cycle,Climate Change,입자 플럭스,탄소순환,기후변화

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