Contrasting Effects of Regional and Local Climate on the Interannual Variability and Phenology of the Scyphozoan, Aurelia coerulea and Nemopilema nomurai in the Korean Peninsula

Type Article
Date 2021-05
Language English
Author(s) Lee Sun-Hee1, 2, Hwang Jiang-ShiouORCID1, 3, 4, Kim Kyoung-Yeon5, Molinero Juan-Carlos2
Affiliation(s) 1 : Institute of Marine Biology, National Taiwan Ocean University, Keelung 20224, Taiwan
2 : MARBEC, IRD/CNRS/IFREMER/Université de Montpellier, CEDEX, 34203 Sète, France
3 : Center of Excellence for the Oceans, National Taiwan Ocean University, Keelung 20224, Taiwan
4 : Center of Excellence for Ocean Engineering, National Taiwan Ocean University, Keelung 20224, Taiwan
5 : Climate Change Research Division, National Institute of Fisheries Science, Busan 46083, Korea
Source Diversity-basel (1424-2818) (MDPI AG), 2021-05 , Vol. 13 , N. 5 , P. 214 (15p.)
DOI 10.3390/d13050214
Note This article belongs to the Special Issue Patterns and Ecology of Jellyfish in Marine Environment
Keyword(s) jellyfish, bloom dynamics, East Asian marginal seas, Pacific decadal oscillation, El Nino Southern Oscillation, East Asian winter monsoon
Abstract

The East Asian marginal seas are among the most productive fisheries grounds. However, in recent decades they experienced massive proliferations of jellyfish that pose vast challenges for the management of harvested fish stocks. In the Korean Peninsula, the common bloom-formers Scyphozoan species Aurelia coerulea and Nemopilema nomurai are of major concern due to their detrimental effects on coastal socio-ecological systems. Here, we used pluriannual field observations spanning over 14 years to test the extent of climate influence on the interannual variability and bloom dynamics of A. coerulea and N. nomurai. To depict climate-jellyfish interactions we assessed partitioning effects, direct/indirect links, and the relative importance of hydroclimate forces on the variability of these species. We show that jellyfish interannual patterns and bloom dynamics are shaped by forces playing out at disparate scales. While abundance changes and earlier blooms of A. coerulea were driven by local environmental conditions, N. nomurai interannual patterns and bloom dynamics were linked with regional climate processes. Our results provide a synoptic picture of cascading effects from large scale climate to jellyfish dynamics in the Korean Peninsula that may affect fisheries sustainability due to the prominent detrimental impact these species have in the region

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Lee Sun-Hee, Hwang Jiang-Shiou, Kim Kyoung-Yeon, Molinero Juan-Carlos (2021). Contrasting Effects of Regional and Local Climate on the Interannual Variability and Phenology of the Scyphozoan, Aurelia coerulea and Nemopilema nomurai in the Korean Peninsula. Diversity-basel, 13(5), 214 (15p.). Publisher's official version : https://doi.org/10.3390/d13050214 , Open Access version : https://archimer.ifremer.fr/doc/00697/80934/