Synergistic impacts of environmental drivers on mesozooplankton community composition in the Ulleung Basin: A decadal analysis
-
Title
- Synergistic impacts of environmental drivers on mesozooplankton community composition in the Ulleung Basin: A decadal analysis
-
Author(s)
- Kim, Minju; Choi, Won Keun; Jang, Chan Joo; Kang, Jung Hoon
- KIOST Author(s)
- Kim, Minju(김민주); Choi, Won Keun(최원근); Jang, Chan Joo(장찬주); Kang, Jung Hoon(강정훈)
-
Alternative Author(s)
- 김민주; 최원근; 장찬주; 강정훈
-
Publication Year
- 2024-03-21
-
Abstract
- The mesozooplankton community may be used as an indicator of climate change due to their
rapid response to changing environment. The sea surface temperature exhibited an increasing
trend over the last decade during the summertime in the Ulleung basin, East/Japan Sea. The
structural changes of mesozooplankton community in relation to the climate-driven factors in
the surface mixed layers of Ulleung basin were investigated during the summers of 2009-
2022. The anomalies of foraminiferans, Pyrocystis noctiluca, and larvae of macrobenthos
showed a significantly increasing long-term trend (p < 0.1) whereas Noctiluca scintillans,
chaetognaths, and ostracods showed a slightly increasing long-term trend. The
mesozooplankton showed a slightly increasing long-term trend with peaks in 2015 and 2020.
The two peaks of mesozooplankton abundance were mainly due to the dominance of N.
scintillans, and the common feature was the close passage and meandering of East Korea
Warm Current (EKWC). The next dominant taxa were thaliaceans and P. noctiluca in 2015
and 2020, respectively. The volume of Tsushima warm current in the western channel (v-west)
was 1.3 times greater in 2020 compared to 2015, and the occurrence of marine heatwave was
detected in 2020 while not detected in 2015. The peaks of mesozooplankton were due to the
meanders of EKWC, however, the strong v-west together with the occurrence of MHW may
have transported a high abundance of subtropical species P. noctiluca and allowed its
persistence during 2020. Thus, the climate-driven factors may have a synergistic influence on
the long-term changes in mesozooplankton community composition
-
URI
- https://sciwatch.kiost.ac.kr/handle/2020.kiost/45492
-
Bibliographic Citation
- 7th International Zooplankton Production Symposium, 2024
-
Publisher
- ICES-PICES
-
Type
- Conference
-
Language
- English
- Files in This Item:
-
There are no files associated with this item.
Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.