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Spatial and Interannual Patterns of Epipelagic Summer Mesozooplankton Community Structures in the Western Arctic Ocean in 2016-2020

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Title
Spatial and Interannual Patterns of Epipelagic Summer Mesozooplankton Community Structures in the Western Arctic Ocean in 2016-2020
Other Titles
2016-2020년 서북극해 여름철 동물플랑크톤 군집 구조의 공간적, 경년적 패턴
Authors
Kim, Jee-Hoon
La, Hyoung Sul
Cho, Kyoung-Ho
Jung, Jinyoung
Kang, Sung-Ho
이강현
Yang, Eun Jin
Keywords
Arctic OceanClimate changeCommunity structurePelagic ecosystemsZooplankton
Issue Date
2022
Citation
Kim, Jee-Hoon, et al. 2022. "Spatial and Interannual Patterns of Epipelagic Summer Mesozooplankton Community Structures in the Western Arctic Ocean in 2016-2020". JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, 127(3): 1-19.
Abstract
Mesozooplankton play a crucial role as primary or secondary consumers in Arctic ecosystems and are sensitive indicators of environmental changes. This research is the first comprehensive Arctic zooplankton study covering the area ranging from the southern Chukchi Sea (SCS) and the northern Chukchi Sea (NCS) to the East Siberian Sea (ESS). Mesozooplankton samples were collected at 151 stations in the western Arctic Ocean each August from 2016 to 2020. The mesozooplankton abundance of the study area ranged from 9 to 6,172 ind. m-3, and the predominant group was copepods at 7-3866 ind. m-3, of which Pseudocalanus spp. and Calanus glacialis were the most abundant copepods. In the SCS, small copepods and meroplankton, such as Pseudocalanus spp., Cirripedia larvae, Echinodermata larvae, and C. abdominalis were the predominant taxa. Especially in 2019, Centropages abdominalis dominated over meroplankton when water temperatures were high (maximum 12.5°C; sea surface temperature, SST). In the NCS and ESS, C. glacialis, Pseudocalanus spp., Metridia longa, Oithona similis, Parasagitta elegans, and Calanus hyperboreus were abundant. The distributions and structures of mesozooplankton communities indicated variability over large spatial scales in the western Arctic waters because of variations in multiple factors, such as water temperature, salinity, and sea ice; however, geographical effects cannot be ignored even during alterations in the physical properties. Our results suggest that these variable patterns of mesozooplankton communities fluctuate horizontally from south to north as warming progresses on a regional bathymetric basis, and can be used to infer the fate of mesozooplankton communities in the study area.
URI
https://repository.kopri.re.kr/handle/201206/13441
DOI
http://dx.doi.org/10.1029/2021JC018074
Type
Article
Station
Araon
Indexed
SCIE
Appears in Collections  
2022-2022, Korea-Arctic Ocean Warming and Response of Ecosystem (22-22) / Yang, Eun Jin (PM22040)
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