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http://dx.doi.org/10.7837/kosomes.2021.27.7.924

Phytoplankton Diversity and Community Structure Driven by the Dynamics of the Changjiang Diluted Water Plume Extension around the Ieodo Ocean Research Station in the Summer of 2020  

Kim, Jihoon (College of Ocean Science and Technology, Korea Maritime and Ocean University)
Choi, Dong Han (Marine Ecosystem Research Center, Korea Institute of Ocean Science & Technology)
Lee, Ha Eun (Marine Ecosystem Research Center, Korea Institute of Ocean Science & Technology)
Jeong, Jin-Yong (Marine Disaster Research Center, Korea Institute of Ocean Science and Technology)
Jeong, Jongmin (Marine Disaster Research Center, Korea Institute of Ocean Science and Technology)
Noh, Jae Hoon (Marine Ecosystem Research Center, Korea Institute of Ocean Science & Technology)
Publication Information
Journal of the Korean Society of Marine Environment & Safety / v.27, no.7, 2021 , pp. 924-942 More about this Journal
Abstract
The expansion of the Changjiang Diluted Water (CDW) plume during summer is known to be a major factor influencing phytoplankton diversity, community structure, and the regional marine environment of the northern East China Sea (ECS). The discharge of the CDW plume was very high in the summer of 2020, and cruise surveys and stationary monitoring were conducted to understand the dynamics of changes in environmental characteristics and the impact on phytoplankton diversity and community structure. A cruise survey was conducted from August 16 to 17, 2020, using R/V Eardo, and a stay survey at the Ieodo Ocean Research Station (IORS) from August 15 to 21, 2020, to analyze phytoplankton diversity and community structure. The southwestern part of the survey area exhibited low salinity and high chlorophyll a fluorescence under the influence of the CDW plume, whereas the southeastern part of the survey area presented high salinity and low chlorophyll a fluorescence under the influence of the Tsushima Warm Current (TWC). The total chlorophyll a concentrations of surface water samples from 12 sampling stations indicated that nano-phytoplankton (20-3 ㎛) and micro-phytoplankton (> 20 ㎛) were the dominant groups during the survey period. Only stations strongly influenced by the TWC presented approximately 50% of the biomass contributed by pico-phytoplankton (< 3 ㎛). The size distribution of phytoplankton in the surface water samples is related to nutrient supplies, and areas where high nutrient (nitrate) supplies were provided by the CDW plume displayed higher biomass contribution by micro-phytoplankton groups. A total of 45 genera of nano- and micro-phytoplankton groups were classified using morphological analysis. Among them, the dominant taxa were the diatoms Guinardia flaccida and Nitzschia spp. and the dinoflagellates Gonyaulax monacantha, Noctiluca scintillans, Gymnodinium spirale, Heterocapsa spp., Prorocentrum micans, and Tripos furca. The sampling stations affected by the TWC and low in nitrate concentrations presented high concentrations of photosynthetic pico-eukaryotes (PPE) and photosynthetic pico-prokaryotes (PPP). Most sampling stations had phosphate-limited conditions. Higher Synechococcus concentrations were enumerated for the sampling stations influenced by low-nutrient water of the TWC using flow cytometry. The NGS analysis revealed 29 clades of Synechococcus among PPP, and 11 clades displayed a dominance rate of 1% or more at least once in one sample. Clade II was the dominant group in the surface water, whereas various clades (Clades I, IV, etc.) were found to be the next dominant groups in the SCM layers. The Prochlorococcus group, belonging to the PPP, observed in the warm water region, presented a high-light-adapted ecotype and did not appear in the northern part of the survey region. PPE analysis resulted in 163 operational taxonomic units (OTUs), indicating very high diversity. Among them, 11 major taxa showed dominant OTUs with more than 5% in at least one sample, while Amphidinium testudo was the dominant taxon in the surface water in the low-salinity region affected by the CDW plume, and the chlorophyta was dominant in the SCM layer. In the warm water region affected by the TWC, various groups of haptophytes were dominant. Observations from the IORS also presented similar results to the cruise survey results for biomass, size distribution, and diversity of phytoplankton. The results revealed the various dynamic responses of phytoplankton influenced by the CDW plume. By comparing the results from the IORS and research cruise studies, the study confirmed that the IORS is an important observational station to monitor the dynamic impact of the CDW plume. In future research, it is necessary to establish an effective use of IORS in preparation for changes in the ECS summer environment and ecosystem due to climate change.
Keywords
Phytoplankton; Changjiang Diluted Water plume; Community structure; Diversity; Ieodo Ocean Research Station; East China Sea;
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1 Choi, D. H.(2012), Picocyanobacterial diversity and distribution during summer in the northern East China Sea, Ocean and Polar Research, Vol. 34, No. 1, pp. 19-28.   DOI
2 Choi, D. H., S. M. An, S. Chun, E. C. Yang, K. E. Selph, C. M. Lee, and J. H. Noh(2016), Dynamic changes in the composition of photosynthetic picoeukaryotes in the northwestern Pacific Ocean revealed by high-throughput tag sequencing of plastid 16S rRNA genes, FEMS microbiology ecology, Vol. 92, No. 2.
3 Choi, D. H., J. H. Noh, M. S. Hahm, and C. M. Lee(2011), Picocyanobacterial abundances and diversity in surface water of the northwestern Pacific Ocean, Ocean Science Journal, Vol. 46, No. 4, pp. 265-271.   DOI
4 Choi, D. H., J. H. Noh, and J. Shim(2013), Seasonal changes in picocyanobacterial diversity as revealed by pyrosequencing in temperate waters of the East China Sea and the East Sea, Aquatic Microbial Ecology, Vol. 71, No. 1, pp. 75-90.   DOI
5 Christaki, U., S. Genitsaris, S. Monchy, L. L. Li, S. Rachik, E. Breton, and T. Sime-Ngando(2017), Parasitic eukaryotes in a meso-eutrophic coastal system with marked Phaeocystis globosa blooms, Frontiers in Marine Science, Vol. 4, No. 416.
6 Wageman, J. M., T. W. Hilde, and K. O. Emery(1970), Structural framework of East China Sea and Yellow Sea, AAPG Bulletin, Vol. 54, No. 9, pp. 1611-1643.
7 Sun, X., F. Shen, D. Liu, R. G. Bellerby, Y. Liu, and R. Tang(2018), In situ and satellite observations of phytoplankton size classes in the entire continental shelf sea, China, Journal of Geophysical Research: Oceans, Vol. 123, No. 5, pp. 3523-3544.   DOI
8 Tada, K., S. Pithakpol, R. Yano, and S. Montani(2000), Carbon and nitrogen content of Noctiluca scintillans in the Seto Inland Sea, Japan, Journal of plankton research, Vol. 22, No. 6, pp. 1203-1211.   DOI
9 Tomas, C. R.(1997), Identifying marine phytoplankton, Elsevier.
10 Zwirglmaier, K., L. Jardillier, M. Ostrowski, S. Mazard, L. Garczarek, D. Vaulot, F. Not, R. Massama, O. Ulloa, and D. J. Scanlan(2008), Global phylogeography of marine Synechococcus and Prochlorococcus reveals a distinct partitioning of lineages among oceanic biomes, Environmental microbiology, Vol. 10, No. 1, pp. 147-161.   DOI
11 Wang, B.(2006), Cultural eutrophication in the Changjiang (Yangtze River) plume: History and perspective, Estuarine, Coastal and Shelf Science, Vol. 69, No. 3-4, pp. 471-477.   DOI
12 Padmakumar, K. B., G. SreeRenjima, C. L. Fanimol, N. R. Menon, and V. N. Sanjeevan(2010), Preponderance of heterotrophic Noctiluca scintillans during a multi-species diatom bloom along the southwest coast of India, International Journal of Oceans and Oceanography, Vol. 4, No. 1, pp. 55-63.
13 Choi, D. H. and J. H. Noh(2009), Phylogenetic diversity of Synechococcus strains isolated from the East China Sea and the East Sea, FEMS microbiology ecology, Vol. 69, No. 3, pp. 439-448.   DOI
14 Edmond, J. M., A. Spivack, B. C. Grant, H. Ming-Hui, C. Zexiam, C. Sung, and Z. Xiushau(1985), Chemical dynamics of the Changjiang estuary, Continental Shelf Research, Vol. 4, No. 1-2, pp. 17-36.   DOI
15 Finkel, Z. V., J. Beardall, K. J. Flynn, A. Quigg, T. A. V. Rees, and J. A. Raven(2010), Phytoplankton in a changing world: cell size and elemental stoichiometry, Journal of plankton research, Vol. 32, No. 1, pp. 119-137.   DOI
16 Furuya, K., M. Hayashi, Y. Yabushita, and A. Ishikawa(2003), Phytoplankton dynamics in the East China Sea in spring and summer as revealed by HPLC-derived pigment signatures, Deep Sea Research Part II: Topical Studies in Oceanography, Vol. 50, No. 2, pp. 367-387.   DOI
17 Song, S., Z. Li, C. Li, and Z. Yu(2017), The response of spring phytoplankton assemblage to diluted water and upwelling in the eutrophic Changjiang (Yangtze River) Estuary, Acta Oceanologica Sinica, Vol. 36, No. 12, pp. 101-110.   DOI
18 Moutier, W., L. Duforet-Gaurier, M. Thyssen, H. Loisel, X. Meriaux, L. Courcot, D. Dessailly, A. Reve, G. Gregori, and M. Dugenne(2017), Evolution of the scattering properties of phytoplankton cells from flow cytometry measurements, PLoS One, Vol. 12, No. 7, p. e0181180.   DOI
19 Not, F., M. Latasa, R. Scharek, M. Viprey, P. Karleskind, V. Balague, I. Ontoria-Oviedo, A. Cumino, E. Goetze, and R. Massana(2008), Protistan assemblages across the Indian Ocean, with a specific emphasis on the picoeukaryotes, Deep Sea Research Part I: Oceanographic Research Papers, Vol. 55, No. 11, pp. 1456-1473.   DOI
20 Mella-Flores, D., S. Mazard, F. Humily, F. Partensky, F. Mahe, L. Bariat, C. Courties, D. Marie, J. Ras, and L. Garczarek(2011), Is the distribution of Prochlorococcus and Synechococcus ecotypes in the Mediterranean Sea affected by global warming?, Biogeosciences, Vol. 8, No. 9, pp. 2785-2804.   DOI
21 Pei, S., Z. Shen, and E. A. Laws(2009), Nutrient dynamics in the upwelling area of Changjiang (Yangtze River) estuary, Journal of Coastal Research, Vol. 25, No. 3, pp. 569-580.   DOI
22 Phinney, D. A. and T. L. Cucci(1989), Flow cytometry and phytoplankton, Cytometry: The Journal of the International Society for Analytical Cytology, Vol. 10, No. 5, pp. 511-521.   DOI
23 Qingshan, L., S. Jun, S. Zhiliang, S. Shuqun, and W. Min (2006), Phytoplankton assemblage of Yangtze River Estuary and the adjacent East China Sea in summer, 2004, Journal of Ocean University of China, Vol. 5, No. 2, pp. 123-131.   DOI
24 Shim, J. H.(1994), Illustrated encyclopedia of fauna and flora of Korea, vol. 34 Marine phytoplankton. Ministry of Education, Korea (in Korean).
25 Hung, C. C., C. C. Chung, G. C. Gong, S. Jan, Y. Tsai, K. S. Chen, K. S. Chou, M. A. Lee, Y. Chang, M. H. Chen, W. R. Yang, C. J. Tseng, and G. Gawarkiewicz(2013), Nutrient supply in the southern East China Sea after typhoon Morakot. Journal of Marine Research, Vol. 71, No. 1-2, pp. 133-149.   DOI
26 Gong, G. C., Y. L. L. Chen, and K. K. Liu(1996), Chemical hydrography and chlorophyll a distribution in the East China Sea in summer: implications in nutrient dynamics, Continental Shelf Research, Vol. 16, No. 12, pp. 1561-1590.   DOI
27 Byun, D. S., J. Y. Jeong, D. J. Kim, S. Hong, K. T. Lee, and K. Lee(2021), Ocean and atmospheric observations at the remote Ieodo Ocean Research Station in the northern East China Sea, Frontiers in Marine Science, Vol. 8, No. 714.
28 Wei, K., C. Ouyang, H. Duan, Y. Li, M. Chen, J. Ma, H. An, and S. Zhou(2020), Reflections on the catastrophic 2020 Yangtze River Basin flooding in southern China, The Innovation, Vol. 1, No. 2.
29 Zhao, Y., R. C. Yu, F. Z. Kong, C. J. Wei, Z. Liu, H. X. Geng, L. D. Zheng, Q. C. Zhang, and M. J. Zhou(2019), Distribution patterns of picosized and nanosized phytoplankton assemblages in the East China Sea and the Yellow Sea: implications on the impacts of Kuroshio intrusion, Journal of Geophysical Research: Oceans, Vol. 124, No. 2, pp. 1262-1276.   DOI
30 Herdman, E. C.(1924), Notes on dinoflagellates and other organisms causing discolouration of the sand at Port Erin. 4. In Trans, Liverpool Biol. Soc, Vol. 38, pp. 75-84.
31 Isobe, A.(2008), Recent advances in ocean-circulation research on the Yellow Sea and East China Sea shelves, Journal of Oceanography, Vol. 64, No. 4, pp. 569-584.   DOI
32 Kim, Y., S. H. Youn, H. J. Oh, J. J. Kang, J. H. Lee, D. Lee, K. Kim, H. K. Jang, J. Lee, and S. H. Lee(2020), Spatiotemporal Variation in Phytoplankton Community Driven by Environmental Factors in the Northern East China Sea, Water, Vol. 12, No. 10, p. 2695.   DOI
33 Johnson, Z. I., E. R. Zinser, A. Coe, N. P. McNulty, E. M. S. Woodward, and S. W. Chisholm(2006), Niche partitioning among Prochlorococcus ecotypes along ocean-scale environmental gradients, Science, Vol. 311, No. 5768, pp. 1737-1740.   DOI
34 Gong, G. C., J. Chang, K. P. Chiang, T. M. Hsiung, C. C. Hung, S. W. Duan, and L. A. Codispoti(2006), Reduction of primary production and changing of nutrient ratio in the East China Sea: Effect of the Three Gorges Dam?, Geophysical Research Letters, Vol. 33, No. 7.
35 Lefevre, F., C. Le Provost, and F. H. Lyard(2000), How can we improve a global ocean tide model at a regional scale? A test on the Yellow Sea and the East China Sea, Journal of Geophysical Research: Oceans, Vol. 105, No. C4, pp. 8707-8725.   DOI
36 Ahlgren, N. A. and G. Rocap(2012), Diversity and distribution of marine Synechococcus: multiple gene phylogenies for consensus classification and development of qPCR assays for sensitive measurement of clades in the ocean. Frontiers in Microbiology, Vol. 3, No. 213.
37 Liu, G., X. Li, J. Wang, Y. Kou, and X. Wang(2020), Research on the statistical characteristics of typhoon frequency, Ocean Engineering, Vol. 209, No. 107489.   DOI
38 Zhou, W., K. Yin, A. Long, H. Huang, L. Huang, and D. Zhu (2012), Spatial-temporal variability of total and size-fractionated phytoplankton biomass in the Yangtze River Estuary and adjacent East China Sea coastal waters, China, Aquatic Ecosystem Health & Management, Vol. 15, No. 2, pp. 200-209.   DOI
39 Kitatsuji, S., H. Yamaguchi, T. Asahi, K. Ichimi, G. Onitsuka, and K. Tada(2019), Does Noctiluca scintillans end the diatom bloom in coastal water?, Journal of Experimental Marine Biology and Ecology, Vol. 510, pp. 10-14.   DOI
40 Lee, Y., E. J. Yang, S. Youn, and J. K. Choi(2018), Influence of the Changjiang diluted waters on the nanophytoplankton distribution in the northern East China Sea, Journal of the Marine Biological Association of the United Kingdom, Vol. 98, No. 7, pp. 1535-1545.   DOI
41 Lepere, C., D. Vaulot, and D. J. Scanlan(2009), Photosynthetic picoeukaryote community structure in the South East Pacific Ocean encompassing the most oligotrophic waters on Earth, Environmental microbiology, Vol. 11, No. 12, pp. 3105-3117.   DOI
42 Li, M., K. Xu, M. Watanabe, and Z. Chen(2007), Long-term variations in dissolved silicate, nitrogen, and phosphorus flux from the Yangtze River into the East China Sea and impacts on estuarine ecosystem, Estuarine, Coastal and Shelf Science, Vol. 71, No. 1-2, pp. 3-12.   DOI
43 Liu, S. M., X. H. Qi, X. Li, H. R. Ye, Y. Wu, J. L. Ren, J. Zhang, and W. Y. Xu(2016), Nutrient dynamics from the Changjiang (Yangtze River) estuary to the East China Sea, Journal of Marine Systems, Vol. 154, pp. 15-27.   DOI
44 Jiang, Z., J. Chen, F. Zhou, L. Shou, Q. Chen, B. Tao, Y. Xiaojun, and K. Wang(2015), Controlling factors of summer phytoplankton community in the Changjiang (Yangtze River) Estuary and adjacent East China Sea shelf, Continental Shelf Research, Vol. 101, pp. 71-84.   DOI
45 Harrison, P. J., K. Furuya, P. M. Glibert, J. Xu, H. B. Liu, K. Yin, J. H. W. Lee, D. M. Anderson, R. Gowen, A. R. Al-Azri, and A. Y. T. Ho(2011), Geographical distribution of red and green Noctiluca scintillans, Chinese Journal of Oceanology and Limnology, Vol. 29, No. 4, pp. 807-831.   DOI
46 Hu, Y., W. Shao, Y. Wei, and J. Zuo(2020), Analysis of typhoon-induced waves along typhoon tracks in the Western North Pacific Ocean, 1998-2017, Journal of Marine Science and Engineering, Vol. 8, No. 7, p. 521.   DOI
47 Ichikawa, H. and R. C. Beardsley(2002), The current system in the Yellow and East China Seas, Journal of Oceanography, Vol 58, No. 1, pp. 77-92.   DOI
48 Lie, H. J., C. H. Cho, J. H. Lee, and S. Lee(2003), Structure and eastward extension of the Changjiang River plume in the East China Sea, Journal of Geophysical Research: Oceans, Vol. 108, No. C3.
49 Choi, B. H.(1984), A three-dimensional model of the East China Sea. In Elsevier oceanography series, Vol. 39, pp. 209-224.
50 Marie, D., N. Simon, L. Guillou, F. Partensky, and D. Vaulot (2000), Flow cytometry analysis of marine picoplankton, In Living Color, pp. 421-454.
51 Yoon, Y. H., J. S. Park, H. Y. Soh, and D. J. Hwang(2005), On the marine environment and distribution of phytoplankton community in the northern East China Sea in early summer 2004, Journal of the Korean Society for Marine Environment & Energy, Vol. 8, No. 2, pp. 100-110.
52 Kang, J. H.(2020), Observation of items fed by Noctiluca scintillans around Dokdo in spring, The Sea, Vol. 25, No. 4, pp. 160-172.   DOI
53 Kim, H. C., H. Yamaguchi, S. Yoo, J. Zhu, K. Okamura, Y. Kiyomoto, K. Tanaka, S. Kim, and J. Ishizaka(2009), Distribution of Changjiang diluted water detected by satellite chlorophyll-a and its interannual variation during 1998-2007, Journal of Oceanography, Vol. 65, No. 1, pp. 129-135.   DOI
54 Gomes, H. D. R., Q. Xu, J. Ishizaka, E. J. Carpenter, P. L. Yager, and J. I. Goes(2018), The influence of riverine nutrients in niche partitioning of phytoplankton communities - a contrast between the Amazon River Plume and the ChangJiang (Yangtze) River diluted water of the East China Sea, Frontiers in Marine Science, Vol. 5, No. 343.
55 Alric, B., C. J. Ter Braak, Y. Desdevises, H. Lebredonchel, and S. Dray(2020), Investigating microbial associations from sequencing survey data with correspondence analysis, Molecular ecology resources, Vol. 20, No. 2, pp. 468-480.   DOI
56 Sohm, J. A., N. A. Ahlgren, Z. J. Thomson, C. Williams, J. W. Moffett, M. A. Saito, E. A. Webb, G. and Rocap(2016), Co-occurring Synechococcus ecotypes occupy four major oceanic regimes defined by temperature, macronutrients and iron, The ISME Journal, Vol. 10, No. 2, pp. 333-345.   DOI
57 Somerville, C. C., I. T. Knight, W. L. Straube, and R. R. Colwell(1989), Simple, rapid method for direct isolation of nucleic acids from aquatic environments, Applied and environmental microbiology, Vol. 55, No. 3, pp. 548-554.   DOI
58 Yoon, Y. H.(2003), Spatial distribution of phytoplankton community and red tide of dinoflagellate, Prorocentrum donghaience in the East China Sea during early summer, Korean J Environ Biol, Vol. 21, pp. 132-141.
59 Jakobsen, H. H. and J. Carstensen(2011), FlowCAM: sizing cells and understanding the impact of size distributions on biovolume of planktonic community structure, Aquatic Microbial Ecology, Vol. 65, No. 1, pp. 75-87.   DOI
60 Miyaguchi, H., Fujiki, T., Kikuchi, T., Kuwahara, V. S., and Toda, T.(2006), Relationship between the bloom of Noctiluca scintillans and environmental factors in the coastal waters of Sagami Bay, Japan, Journal of Plankton Research, Vol. 28, No. 3, pp. 313-324.   DOI
61 Zhou, M. J., Z. L. Shen, and R. C. Yu(2008), Responses of a coastal phytoplankton community to increased nutrient input from the Changjiang (Yangtze) River, Continental Shelf Research, Vol. 28, No. 12, pp. 1483-1489.   DOI
62 Wang, F., Y. Xie, W. Wu, P. Sun, L. Wang, and B. Huang(2019), Picoeukaryotic diversity and activity in the northwestern Pacific Ocean based on rDNA and rRNA high-throughput sequencing, Frontiers in microbiology, Vol. 9, Article 3259.
63 Chang, P. H. and A. Isobe(2003), A numerical study on the Changjiang diluted water in the Yellow and East China Seas, Journal of Geophysical Research: Oceans, Vol. 108, Article. C9.
64 Faria, D. G., M. D. Lee, J. B. Lee, J. Lee, M. Chang, S. H. Youn, Y. S. Suh, and J. S. Ki(2014), Molecular diversity of phytoplankton in the East China Sea around Jeju Island (Korea), unraveled by pyrosequencing, Journal of Oceanography, Vol. 70, No. 1, pp. 11-23.   DOI
65 Arar, E. J. and G. B. Collins(1997), Method 445.0: In vitro determination of chlorophyll a and pheophytin a in marine and freshwater algae by fluorescence, Cincinnati: United States Environmental Protection Agency, Office of Research and Development, National Exposure Research Laboratory, pp. 1-22.
66 Chen, C. T. A.(2008), Distributions of nutrients in the East China Sea and the South China Sea connection, Journal of Oceanography, Vol. 64 No. 5, pp. 737-751.   DOI
67 Chen, Y. L. L., H. Y. Chen, G. C. Gong, Y. H. Lin, S. Jan, and M. Takahashi(2004), Phytoplankton production during a summer coastal upwelling in the East China Sea, Continental Shelf Research, Vol. 24, No. 12, pp. 1321-1338.   DOI