Zooplankton and micronekton respond to climate fluctuations in the Amundsen Sea polynya, Antarctica SCIE SCOPUS

Cited 8 time in WEB OF SCIENCE Cited 8 time in Scopus
Title
Zooplankton and micronekton respond to climate fluctuations in the Amundsen Sea polynya, Antarctica
Author(s)
La, Hyoung Sul; Park, Keyhong; Wahlin, Anna; Arrigo, Kevin R.; Kim, Dong Seon; Yang, Eun Jin; Atkinson, Angus; Fielding, Sophie; Im, Jungho; Kim, Tae-Wan; Shin, Hyoung Chul; Lee, SangHoon; Ha, Ho Kyung
KIOST Author(s)
Kim, Dong Seon(김동선)
Alternative Author(s)
김동선
Publication Year
2019-07-12
Abstract
The vertical migration of zooplankton and micronekton (hereafter 'zooplankton') has ramifications throughout the food web. Here, we present the first evidence that climate fluctuations affect the vertical migration of zooplankton in the Southern Ocean, based on multi-year acoustic backscatter data from one of the deep troughs in the Amundsen Sea, Antarctica. High net primary productivity (NPP) and the annual variation in seasonal ice cover make the Amundsen Sea coastal polynya an ideal site in which to examine how zooplankton behavior responds to climate fluctuations. Our observations show that the timing of the seasonal vertical migration and abundance of zooplankton in the seasonally varying sea ice is correlated with the Southern Annular Mode (SAM) and El Nino Southern Oscillation (ENSO). Zooplankton in this region migrate seasonally and overwinter at depth, returning to the surface in spring. During +SAM/La Nina periods, the at-depth overwintering period is shorter compared to -SAM/El Nino periods, and return to the surface layers starts earlier in the year. These differences may result from the higher sea ice cover and decreased NPP during +SAM/La Nina periods. This observation points to a new link between global climate fluctuations and the polar marine food web.
ISSN
2045-2322
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/577
DOI
10.1038/s41598-019-46423-1
Bibliographic Citation
SCIENTIFIC REPORTS, v.9, 2019
Publisher
NATURE PUBLISHING GROUP
Subject
KRILL EUPHAUSIA-SUPERBA; WARM DEEP-WATER; VERTICAL MIGRATION; COASTAL POLYNYA; ICE; PHYTOPLANKTON; IMPACT; DYNAMICS
Type
Article
Language
English
Document Type
Article
Publisher
NATURE PUBLISHING GROUP
Related Researcher
Research Interests

Biogeochemistry,Carbon cycle,Ocean acidification,생지화학,탄소순환,해양산성화

Files in This Item:
There are no files associated with this item.

qrcode

Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse