Cite this paper:
Zhao Xiangwei, Wei Yuqiu, Sun Jun, Zhang Guicheng, Zhao Liang, Jia Dai. Picophytoplankton from Qinhuangdao coastal waters in spring and summer[J]. Haiyang Xuebao, 2020, 42(2): 106-114

Picophytoplankton from Qinhuangdao coastal waters in spring and summer

Zhao Xiangwei1, Wei Yuqiu1, Sun Jun2,3, Zhang Guicheng2,3, Zhao Liang2,3, Jia Dai2,3
1. Institute of Marine Science and Technology, Shandong University, Qingdao 266237, China;
2. Tianjin Key Laboratory of Marine Resources and Chemistry, Tianjin University of Science and Technology, Tianjin 300457, China;
3. Research Centre for Indian Ocean Ecosystem, Tianjin University of Science and Technology, Tianjin 300457, China
Abstract:
During June and August 2017, two picophytoplankton groups including Synechococcus and picoeukaryotes were found in Qinhuangdao coastal waters, and Synechococcus could be divided into two sub-groups of Synechococcus Ⅰ and Synechococcus Ⅱ. During the sampling period, it was during high-incidence period of brown tide. To investigate the effects of the related environmental factors on the spatical distributions of picophytoplankton in Qinhuangdao coastal waters, we compared their cell abundances, carbon biomass and distributional characteristics during the brown tide. The results showed that the average abundances of picoeukaryotes, Synechococcus Ⅰ and Synechococcus Ⅱ in June were 1.14×104 cell/mL, 4.02×104 cell/mL and 1.04×104 cell/mL, respectively, and the average carbon biomass were 27.22 μg/L, 8.49 μg/L and 2.27 μg/L respectively. While in August, the average abundances of picoeukaryotes, Synechococcus Ⅰ and Synechococcus Ⅱ were 3.27×103 cell/mL, 5.79×104 cell/mL and 2.58×104 cell/mL, and the average carbon biomass were 6.35 μg/L, 13.41 μg/L and 5.83 μg/L respectively. The abundance of picoeukaryotes decreased by an order of magnitude from June to August, indicating that the growth of dominant species of brown tide was limited by high temperature and low nutrients in August. Picoeukaryotes, Synechococcus Ⅰ and Synechococcus Ⅱ showed different distributions in June and August. Synechococcus Ⅰ and Synechococcus Ⅱ increased gradually from estuary to nearshore in June, while picoeukaryotes showed a downward trend. Inversely, picoeukaryotes and Synechococcus Ⅰ showed a decreasing trend from estuary to nearshore in August, and the distribution character of Synechococcus Ⅱ abundance was not obvious in Qinhuangdao coastal waters, mainly existing in surface layer. The results of correlation analysis with related environmental factors indicated that nitrate and ammonium salt were the key factor in controlling the growth of Synechococcus Ⅰ in June while picoeukaryotes was limited by the silicate concentration. There was no significant correlation between Synechococcus Ⅱ and environment factors in June. In August, the growth of picoeukaryotes was affected by a variety of environmental factors, such as nitrate, nitrite, silicate, phosphate, temperature and light while Synechococcus Ⅰ was positively correlated with nitrate. The temperature and light were the key factors affecting the Synechococcus Ⅱ distribution in August.
Key words:    picophytoplankton    brown tide    environmental factors    Qinhuangdao   
Received: 2019-03-12   Revised: 2019-06-13
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Articles by Zhao Xiangwei
Articles by Wei Yuqiu
Articles by Sun Jun
Articles by Zhang Guicheng
Articles by Zhao Liang
Articles by Jia Dai
References:
[1] Waterbury J B, Watson S W, Guillard R R L, et al. Widespread occurrence of a unicellular, marine, planktonic, cyanobacterium[J]. Nature, 1979, 277(5694):293-294.
[2] Chisholm S W, Olson R J, Zettler E R, et al. A novel free-living prochlorophyte abundant in the oceanic euphotic zone[J]. Nature, 1988, 334(6180):340-343.
[3] Li W K W, Rao D V S, Harrison W G, et al. Autotrophic picoplankton in the tropical ocean[J]. Science, 1983, 219(4582):292-295.
[4] Marie D, Simon N, Guillou L, et al. Flow cytometry analysis of marine picoplankton[M]//Diamond R A, Demaggio S. In Living Color. Berlin, Heidelberg:Springer, 2000.
[5] Blanchot J, Rodier M. Picophytoplankton abundance and biomass in the western tropical Pacific Ocean during the 1992 El Niño year:results from flow cytometry[J]. Deep Sea Research Part I:Oceanographic Research Papers, 1996, 43(6):877-895.
[6] Chen Bingzhang, Lei Wang, Song Shuqun, et al. Comparisons of picophytoplankton abundance, size, and fluorescence between summer and winter in northern South China Sea[J]. Continental Shelf Research, 2011, 31(14):1527-1540.
[7] Li W K W. Primary production of prochlorophytes, cyanobacteria, and eucaryotic ultraphytoplankton:measurements from flow cytometric sorting[J]. Limnology and Oceanography, 1994, 39(1):169-175.
[8] Partensky F, Blanchot J, Lantoine F, et al. Vertical structure of picophytoplankton at different trophic sites of the tropical northeastern Atlantic Ocean[J]. Deep Sea Research Part I:Oceanographic Research Papers, 1996, 43(8):1191-1213.
[9] Blanchot J, André J M, Navarette C, et al. Picophytoplankton in the equatorial Pacific:vertical distributions in the warm pool and in the high nutrient low chlorophyll conditions[J]. Deep Sea Research Part I:Oceanographic Research Papers, 2001, 48(1):297-314.
[10] br>Zhang Yong, Zhang Yongfeng, Zhang Wanlei, et al. Size fraction of chlorophyll a during and after brown tide in Qinhuangdao coastal waters[J]. Ecological Science, 2012, 31(4):357-363
[11] br>Chen Yan, Li Xinyang, Zhang Jianle. Current condition and assessment of inshore water quality in Qinhuangdao[J]. Hebei Fisheries, 2014(5):15-20, 40
[12] Bricelj V, MacQuarrie S, Schaffner R. Differential effects of Aureococcus anophagefferens isolates ("brown tide") in unialgal and mixed suspensions on bivalve feeding[J]. Marine Biology, 2001, 139(4):605-616.
[13] br>Song Guangjun, Song Lun, Wang Nianbin, et al. The present research status of brown tide[J]. Hebei Fisheries, 2014(9):61-66
[14] br>Sun Hui. Study on abundance and diversity of virioplankton in scallop farming around Qinhuangdao[D]. Qingdao:Ocean University of China, 2014.
[15] br>Ning Xiuren, Vogel D. The distribution and environmently regulating mechanism of the Cyanobacteria with its cell characteristic in Changjiang Estuary and its adjacent waters[J]. Haiyang Xuebao, 1991, 13(4):552-559
[16] br>Yang Yanhui, Jiao Nianzhi. The distribution and dynamic change of picophytoplankton in Jiaozhou Gulf by flow cytometry (FCM)[C]//China Ocean and Limnetic Society Zoology Section of the Shell, China Zoological Society, Ecology Branch of China Marine and Lacustring Bog Institute in 2000 Attended the Academic Seminar on Abstract Set. Qingdao:China Society for Oceanology and Limnology,2000.
[17] br>Wei Yuqiu, Sun Jun, Ding Changling. Distribution and environmental impact factors of picoplankton in the northern South China Sea in summer 2014[J]. Haiyang Xuebao, 2015, 37(12):56-65
[18] Dai Minhan, Wang Lifang, Guo Xianghui, et al. Nitrification and inorganic nitrogen distribution in a large perturbed river/estuarine system:the Pearl River Estuary, China[J]. Biogeosciences, 2008, 5(5):1227-1244.
[19] br>Guo Shujin, Li Yanqiao, Zhang Cuixia, et al. Phytoplankton community in the Bohai Sea and its relationship with environmental factors[J]. Marine Science Bulletin, 2014, 33(1):95-105
[20] br>Liu Xin, Zhang Junbin, Huang Liangmin. Applications of flow cytometry (FCM) in researches of marine biology[J]. Marine Sciences, 2007, 31(1):92-96
[21] Phinney D A, Cucci T L. Flow cytometry and phytoplankton[J]. Cytometry, 1989, 10(5):511-521.
[22] Wei Yuqiu, Sun Jun, Zhang Xiaodong, et al. Picophytoplankton size and biomass around equatorial eastern Indian Ocean[J]. MicrobiologyOpen, 2019, 8(2):e00629.
[23] br>Ning Xiuren, Cai Yuming, Li Guowei, et al. Photosynthetic Picoplankton in the northern South China Sea[J]. Haiyang Xuebao, 2003, 25(3):83-97
[24] br>Jiao Nianzhi. Marine Picoplankton Ecology[M]. Beijing:China Science Press, 2006.
[25] ter Braak C J F. Canonical correspondence analysis:a new eigenvector technique for multivariate direct gradient analysis[J]. Ecology, 1986, 67(5):1167-1179.
[26] ter Braak C J F, Prentice I C. A theory of gradient analysis[J]. Advances in Ecological Research, 2004, 34:235-282.
[27] Kong Fanzhou, Yu Rencheng, Zhang Qingchun, et al. Pigment characterization for the 2011 bloom in Qinhuangdao implicated "brown tide" events in China[J]. Chinese Journal of Oceanology and Limnology, 2012, 30(3):361-370.
[28] Zhang Qingchun, Qiu Limei, Yu Rencheng, et al. Emergence of brown tides caused by Aureococcus anophagefferens Hargraves et Sieburth in China[J]. Harmful Algae, 2012, 19:117-124.
[29] br>Gu Bin, Zhen Yu, Mi Tiezhu. Characterization of phytoplankton community in the coastal waters of Qinhuangdao during brown tide[J]. Periodical of Ocean University of China, 2015, 45(7):64-72
[30] br>Ma Yu, Wang Min, Xia Jun, et al. Studies on abundance and diversity of microplankton during brown tide around Qinhuangdao area[J]. Periodical of Ocean University of China, 2016, 46(6):142-150
[31] br>Yu Jie, Zhang Lingling, Sun Yan, et al. Diversity of nanoplankton during the brown tide in the Bohai Sea[J]. Periodical of Ocean University of China, 2015, 45(3):73-78
[32] br>Song Lun, Wu Jing, Liu Weidong, et al. Biodiversity analysis of brown tide in the Bohai Sea[C]//2016 Annual Meeting of Chinese Society for Environmental. Beijing:China Environmental Science Press,2016.
[33] Zhang Xiaodong, Kan Jinjun, Wang Jing, et al. First record of a large-scale bloom-causing species Nannochloropsis granulata (Monodopsidaceae, Eustigmatophyceae) in China Sea waters[J]. Ecotoxicology, 2015, 24(7/8):1430-1441.
[34] br>Yang Hongsheng, Zhou Yi. Research progress on environmental impact of filter-feeding shellfish on aquaculture areas[J]. Marine Sciences, 1998, 22(2):42-44
[35] Gobler C J, Renaghan M J, Buck N J. Impacts of nutrients and grazing mortality on the abundance of Aureococcus anophagefferens during a New York brown tide bloom[J]. Limnology and Oceanography, 2002, 47(1):129-141.
[36] Sunda W G, Graneli E, Gobler C J. Positive feedback and the development and persistence of ecosystem disruptive algal blooms[J]. Journal of Phycology, 2006, 42(5):963-974.
[37] Buskey E J, Montagna P A, Amos A F, et al. Disruption of grazer populations as a contributing factor to the initiation of the Texas brown tide algal bloom[J]. Limnology and Oceanography, 1997, 42(5part2):1215-1222.
[38] Laroche J, Nuzzi R, Waters R, et al. Brown Tide blooms in Long Island's coastal waters linked to interannual variability in groundwater flow[J]. Global Change Biology, 2010, 3(5):397-410.
[39] br>Chen Yanghang, Liang Junrong, Chen Changping, et al. Brown tide:a new ecosystem disruptive algal bloom[J]. Chinese Journal of Ecology, 2015, 34(1):274-281
[40] Chiang K P, Kuo M C, Chang J, et al. Spatial and temporal variation of the Synechococcus population in the East China Sea and its contribution to phytoplankton biomass[J]. Continental Shelf Research, 2002, 22(1):3-13.
[41] br>Zhang Yongfeng, Li Xinyang, Zhang Wanglei, et al. Spatial and temporal distribution of silicate and chlorophyll a in the coastal waters with picophytoplankton algal bloom[J]. Ecological Science, 2013, 32(4):509-513
[42] br>Jiao Nianzhi, Yang Yanhui. Ecological studies on Prochlorococcus in China Sea[J]. Chinese Science Bulletin, 2002, 47(15):1243-1250
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