Chlorophyll bloom enhanced by a mesoscale eddy in the western South China Sea
Yongqiang CHEN1,2,3, Dajun QIU1,2,3, Peter CORNILLON4, Meilin WU1,2,3()
1. State Key Laboratory of Tropical Oceanography and Key Laboratory of Marine Bio-resources Sustainable Utilizing, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China 2. Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China 3. Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou 510301, China 4. Graduate School of Oceanography, the University of Rhode Island, Narragansett, RI 02882, USA
Remote sensing of ocean color is used to detect phytoplankton blooms and oceanic eddies. In this study, satellite remote sensing was used to detect an eddy-like phytoplankton bloom in the western South China Sea in early September, 2007. The eddy-like phytoplankton bloom formed in the middle of August, before the formation of a cyclonic eddy. The time series reveals a lag period of about 1 week between maximum chlorophyll (Chl a) and maximum eddy intensity. This lag may have been related to the Mekong River discharge and its subsequent mixing by the cyclonic eddy. The spatial distribution of the bloom was characterized by a jet of high Chl a. Our data provide evidence that a significant proportion of south-westerly monsoon driven nutrients are used by phytoplankton. We also determined that phytoplankton blooms may support the large-scale advective spreading of high biomass waters to the open ocean by large surface currents. These biomass rich waters are probably important in the food chain dynamics of the outer south-eastern shelf and the coral islands or atolls in the open ocean.
. [J]. Frontiers of Earth Science, 10.1007/s11707-022-0984-3.
Yongqiang CHEN, Dajun QIU, Peter CORNILLON, Meilin WU. Chlorophyll bloom enhanced by a mesoscale eddy in the western South China Sea. Front. Earth Sci., , (): 0.
K, Baith , R, Lindsay , G, Fu , C R McClain . ( 2001). Data Analysis System Developed for Ocean Color Satellite Sensors. Eos (Wash DC), 82( 18): 202– 204 https://doi.org/10.1029/01EO00109
2
I M, Belkin , P C, Cornillon , K Sherman . ( 2009). Fronts in Large Marine Ecosystems. Prog Oceanogr, 81( 1–4): 223– 236
3
T S, Bibby , C M Moore . ( 2011). Silicate: nitrate ratios of upwelled waters control the phytoplankton community sustained by mesoscale eddies in sub-tropical North Atlantic and Pacific. Biogeosci Discuss, 7: 7505– 7525 https://doi.org/10.5194/bgd-7-7505-2010
4
D, Bombar , J W, Dippner , Nhu D, Hai , Nguyen N, Lam , I, Liskow , N, Loick-Wilde , M Voss . ( 2010). Sources of new nitrogen in the Vietnamese upwelling region of the South China Sea. J Geophys Res Oceans, 115: C06018 https://doi.org/10.1029/2008JC005154
5
G, Chen , Y, Hou , Q, Zhang , X Chu . ( 2010). The eddy pair off eastern Vietnam: Interannual variability and impact on thermohaline structure. Cont Shelf Res, 30( 7): 715– 723 https://doi.org/10.1016/j.csr.2009.11.013
6
X, Chen , C, Schallenberg , H, Phillips , Z Chase . ( 2021). Biogeochemical characteristics of eddies in the East Australian Current depend on eddy type, history and location. J Mar Syst, 216( 5): 103512 https://doi.org/10.1016/j.jmarsys.2021.103512
7
Y, Chen , D Tang . ( 2012). Eddy-feature phytoplankton bloom induced by a tropical cyclone in the South China Sea. Int J Remote Sens, 33( 23): 7444– 7457 https://doi.org/10.1080/01431161.2012.685976
8
W R, Crawford , P J, Brickley , A C Thomas . ( 2007). Mesoscale eddies dominate surface phytoplankton in northern Gulf of Alaska. Prog Oceanogr, 75( 2): 287– 303 https://doi.org/10.1016/j.pocean.2007.08.016
9
J W, Dippner , L, Nguyen-Ngoc , H, Doan-Nhu , A Subramaniam . ( 2011). A model for the prediction of harmful algae blooms in the Vietnamese upwelling area. Harmful Algae, 10: 606– 611 https://doi.org/10.1016/j.hal.2011.04.012
J D, Everett , M E, Baird , P R, Oke , I M Suthers . ( 2012). An avenue of eddies: quantifying the biophysical properties of mesoscale eddies in the Tasman Sea. Geophys Res Lett, 39: L16608 https://doi.org/10.1029/2012GL053091
12
J, Grosse , D, Bombar , H N, Doan , L N, Nguyen , M Voss . ( 2010). The Mekong River plume fuels nitrogen fixation and determines phytoplankton species distribution in the South China Sea during low- and high-discharge season. Limnol Oceanogr, 55( 4): 1668– 1680 https://doi.org/10.4319/lo.2010.55.4.1668
13
C M, Hu , K E, Hackett , M K, Callahan , S, Andrefouet , J L, Wheaton , J W, Porter , F E Muller-Karger . ( 2003). The 2002 ocean color anomaly in the Florida Bight: a cause of local coral reef decline?. Geophys Res Lett, 30( 3): 1151 https://doi.org/10.1029/2002GL016479
14
J, Hu , J, Gan , Z, Sun , J, Zhu , M Dai . ( 2011). Observed three-dimensional structure of a cold eddy in the southwestern South China Sea. J Geophys Res Oceans, 116: C05016 https://doi.org/10.1029/2010JC006810
15
D, Kim , E J, Yang , K H, Kim , C W, Shin , J, Park , S, Yoo , J H Hyun . ( 2012). Impact of an anticyclonic eddy on the summer nutrient and chlorophyll a distributions in the Ulleung Basin, East Sea (Japan Sea). ICES J Mar Sci, 69( 1): 23– 29 https://doi.org/10.1093/icesjms/fsr178
D J Jr, McGillicuddy , R, Johnson , D A, Siegel , A F, Michaels , N R, Bates , A H Knap . ( 1999). Mesoscale variations of biogeochemical properties in the Sargasso Sea. J Geophys Res, 104( C6): 13381– 13394 https://doi.org/10.1029/1999JC900021
19
K, Mizobata , S I, Saitoh , A, Shiomoto , T, Miyamura , N, Shiga , K, Imai , M, Toratani , Y, Kajiwara , K Sasaoka . ( 2002). Bering Sea cyclonic and anticyclonic eddies observed during summer 2000 and 2001. Prog Oceanogr, 55( 1–2): 65– 75 https://doi.org/10.1016/S0079-6611(02)00070-8
20
B Mouriño-Carballido . ( 2009). Eddy-driven pulses of respiration in the Sargasso Sea. Deep Sea Res Part I Oceanogr Res Pap, 56( 8): 1242– 1250 https://doi.org/10.1016/j.dsr.2009.03.001
21
F E, Muller-karger , C R, McClain , P L Richardson . ( 1988). The dispersal of the Amazons water. Nature, 333( 6168): 56– 59 https://doi.org/10.1038/333056a0
22
D, Qiu , Y, Zhong , Y, Chen , Y, Tan , X, Song , L Huang . ( 2019). Short-term phytoplankton dynamicsduring typhoon season in and near the Pearl River Estuary, South China Sea. J Geophys Res Biogeosci, 124( 2): 274– 292 https://doi.org/10.1029/2018JG004672
23
S S C, Shenoi , D, Shankar , S R Shetye . ( 2004). Remote forcing annihilates barrier layer in southeastern Arabian Sea. Geophys Res Lett, 31( 5): 1– 4 https://doi.org/10.1029/2003GL019270
24
Y Y, Shih , C C, Hung , G C, Gong , W C, Chung , Y H, Wang , I H, Lee , K S, Chen , C Y Ho . ( 2015). Enhanced particulate organic carbon export at eddy edges in the oligotrophic western North Pacific Ocean. PLoS One, 10( 7): e0131538 https://doi.org/10.1371/journal.pone.0131538
25
D A, Siegel , D J Jr, McGillicuddy , E A Fields . ( 1999). Mesoscale eddies, satellite altimetry, and new production in the Sargasso Sea. J Geophys Res, 104( C6): 13359– 13379 https://doi.org/10.1029/1999JC900051
26
F L, Sun , X M, Xia , M, Simon , Y S, Wang , H Y, Zhao , C C, Sun , H, Cheng , Y T, Wang , S B, Hu , J, Fei , M L Wu . ( 2022). Anticyclonic eddy driving significant changes in prokaryotic and eukaryotic communities in the South China Sea. Front Mar Sci, 9: 773548 https://doi.org/10.3389/fmars.2022.773548
27
D L, Tang , H, Kawamura , H, Doan-Nhu , W Takahashi . ( 2004a). Remote sensing oceanography of a harmful algal bloom off the coast of southeastern Vietnam. J Geophys Res Oceans, 109: C03014 https://doi.org/10.1029/2003JC002045
28
D L, Tang , H, Kawamura , A J Luis . ( 2002). Short-term variability of phytoplankton blooms associated with a cold eddy in the northwestern Arabian Sea. Remote Sens Environ, 81( 1): 82– 89 https://doi.org/10.1016/S0034-4257(01)00334-0
29
D L, Tang , H, Kawamura , Dien T, Van , M Lee . ( 2004b). Offshore phytoplankton biomass increase and its oceanographic causes in the South China Sea. Mar Ecol Prog Ser, 268: 31– 41 https://doi.org/10.3354/meps268031
30
G, Wang , Z, Ling , C Wang . ( 2009). Influence of tropical cyclones on seasonal ocean circulation in the South China Sea. J Geophys Res Oceans, 114: C10022 https://doi.org/10.1029/2009JC005302
31
L, Wang , B, Huang , K P, Chiang , X, Liu , B, Chen , Y, Xie , Y, Xu , J, Hu , M Dai . ( 2016). Physical-biological coupling in the western South China Sea: the response of phytoplankton community to a mesoscale cyclonic eddy. PLoS One, 11( 4): e0153735 https://doi.org/10.1371/journal.pone.0153735
32
F J, Wentz D K, Smith C A, Mears C L, Gentemann I Ieee ( 2001) Advanced algorithms for QuikScat and SeaWinds/AMSR. In: Proceedings Igarss 2001: Scanning the Present and Resolving the Future, Vols 1–7: 1079– 1081
33
M L, Wu , Y S, Wang , Y T, Wang , F L, Sun , X, Li , F F, Gu , J C Xiang . ( 2022). Vertical patterns of chlorophyll a in the euphotic layer are related to mesoscale eddies in the South China Sea. Front Mar Sci, 9: 948665 https://doi.org/10.3389/fmars.2022.948665
34
M L, Wu , Y S, Wang , Y Y, Wang , F L, Sun , X M , Li , J D Gu . ( 2022b). A weak cold eddy influencing nitrogen form in the western part of the South China Sea. Regional Studies Mar Sci, 55: 102521
35
S P, Xie , C H, Chang , Q, Xie , D Wang . ( 2007). Intraseasonal variability in the summer South China Sea: Wind jet, cold filament, and recirculations. J Geophys Res Oceans, 112: C10008 https://doi.org/10.1029/2007JC004238
36
S P, Xie , Q, Xie , D X, Wang , W T Liu . ( 2003). Summer upwelling in the South China Sea and its role in regional climate variations. J Geophys Res Oceans, 108( C8): 3261 https://doi.org/10.1029/2003JC001867
