Microsoft Word - 5--郭坤_new_.doc

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1 48 1 Vol.48, No OCEANOLOGIA ET LIMNOLOGIA SINICA Jan., 2017 * , 21 ( ; ), ( ), (42 ),, (4412ind./L), (831ind./L) 59%, 8,, (Brachiouns calyciflorus) (Polyarthra trigla Ehrenberg), P. trigla Ehrenberg, 59.13% Shannon Pielou Margalef, : ; chl a, ; ph B. calyciflorus ;, ; P. trigla Ehrenberg (Keratella cochlearis), ; ; ; Q145 doi: /hyhz ,, (, 2016), 2010 鲌, ,, (, 2014), :,, (, 2015),, (, 2008;, 2013;, 2014;, 2015) ( )(, 2016),, (, 1990) *, 2012BAD25B08-03,, @163.com :,,, chaiyi123456@126.com : , :

1 : 41 ( )(, 2010),,, ;, 5 ;,, 19, (H)9 (H1 H9), (M)4 M1 M4, (Y)6 Y1 Y6, 1 2012 4 ( ) 2012 7 ( ) 2012 10 ( ) 2013 1 ( ) Fig.1 1 The sampling sites in Changhu Lake 1.

2 1 : 41 ( )(, 2010),,, ;, 5 ;,, 19, (H)9 (H1 H9), (M)4 M1 M4, (Y)6 Y1 Y6, ( ) ( ) ( ) ( ) Fig.1 1 The sampling sites in Changhu Lake #, 50mL, 4% 5L, 25# 100mL, 4% (, 1961) (, 1979) (, 1979), (mg/l) 1.3, (SD), (HQ40D, Hach, Loveland, USA) (DO) ph (T) (TP) (TN) (COD) (chl a) (TSS), (, 2003) 1.4 : (ind./l), Y Shannon-wiener (H ) Margalef (d Ma ) Pielou (e), : Y n / N f, i i S H' P ln P, dma ( S 1)/lnN, i 1 e H' /log 2 S,, Y, n i i, N i i

3 42 48, f i i, Y>0.02 ; P i n i N, S E (, 2014), E K( x 1) /[( A Y)( y 1)], K, A, Y, x -, y - R: R ( a b 2 c) /( a b c) 100%, a b, c, (Redundancy Analysis, RDA) R_V3.24, vegan RDA (Borcard et al, 2014), R (, 2007), Excel ,, ph T COD, , 42, 16, 9 (41 )> (37 )> (32 )> (29 ), 58.14%( ), 82.05% ( ) 2 Fig.2 Spatio-temporal distribution of the main environmental factors in different parts of the Changhu Lake : (H) (M) (Y);, ; a b c, A B C D

4 1 : 43 3 Fig.3 Spatio-temporal distributions of zooplankton density and biomass : H: ; M: ; Y: 3 (ANOVA, F=18.03, P=0.000), ((4412±2127)ind./L)> ((2111±1626)ind./L)> ((1454±1016)ind./L)> ((831±606)ind./L), (ANOVA, F=5.49, P=0.015),, 91%, 50%, ind./l, ; ind./l,, 2 5, ind./l, ind./l, 63.1%, 370ind./L 398ind./L, 99ind./L (238.2mg/L)> (180.7mg/L)> (69.09mg/L)> (60.64mg/L), (ANOVA, F=0.887, P=0.452) (60% ),, 62.05%, 80.19%, 36.56% Y 8,,, 1, 4,,, ANOVA, Shannon Margalef, TSS ph T TN, DO, lnx, F P 3, F P, : T, TN RDA, ln(x+1) (DCA), DCA 3( ), RDA ln(x+1), -, RDA 6 RDA, 1000, RDA 4

5 44 48 Fig.4 4 Seasonal distribution of zooplankton density in each sampling sites in Changhu Lake : 1 Tab.1 表 1 长湖浮游动物优势种 The dominant species of zooplankton in Changhu Lake Y Y Y Y Bra. Brachiouns calyciflorus Pallas 84.21% % % % 0.03 Asp.p Asplanchna priodonta Gosse 95.00% 0.08 Asp.b Asplanchna brightwelli Gosse 73.68% 0.03 Asp.g Asplanchna girodi de Guerne % 0.30 Ker.c Keratella cochlearis 73.68% % 0.16 Ker.t Keratella ticinensis 84.21% 0.05 Fil. Filinia major 94.74% 0.12 Pol. Polyarthra trigla Ehrenberg % % % % 0.71 Tab.2 :, 表 2 浮游动物丰度种类生物量与环境因子相关性分析 ( 显著性水平 α=0.05) Correlation analysis between zooplankton abundance, biomass, species number and environmental factors (significance level α=0.05) lnsd lntss lnph lnt lndo lntp lntn lncod lnchl a lnza ** ** * ** ** ** ** * lnzb ** ** * ** ** ** ** lnzs * * ** ** ** ** ** : **: P<0.05; *: P<0.01; ZA: (zooplankton abundance); ZB: (zooplankton biomass); ZS: (zooplankton species) lnx

6 1 : 45 Fig.5 5 Shannon Pielou Margalef Distribution of the Shannon index, Pielou index, Margalef index and E index of zooplankton in each sampling sites in Changhu Lake : 表 3 浮游动物与环境因子多元逐步回归方程 Tab.3 Stepwise multiple regression among zooplankton and environmental factors F P lnza= lnt lntn lncod lnzb=0.7578lnt lnSD lnzs= lnt lntn lnTP 表 4 各季节 RDA 分析前两轴特征根解释率累计解释率及置换检验结果数据 Tab.4 Summary statistics of RDA RDA1 RDA2 RDA1 RDA2 RDA1 RDA2 RDA1 RDA % 13.19% 57.75% 6.97% 27.47% 20.48% 41.00% 8.24% 29.31% 42.50% 57.75% 64.72% 27.47% 47.94% 41.00% 49.25% (F ) 9.12 ** 4.11 ** *** 3.01 * 9.11 *** 6.79 *** ** 2.48 * : *** ** * P=0.000 P<0.001 P<0.01 4, 42.50%,, RDA RDA : ( ) ( ), ,, ( ),,, (, 2011;, 2013)

7 46 48 Fig Bi-plot of redundancy analysis between zooplankton species and environmental factors for each season,, (, 2014) 59%,,, : 8, 59.13%, 95.32%;, 49.68%, 96.48%;, (P=0.041),,,,,, (2015) 3.2, Record (2010) ; Ekvall (2012),,, (2014) 20 C, C,, 20 C (, 1985),

8 1 : 47, ;, ; RDA, T,,, ph,, ; ; (, 2013) ph,, ph ph, ph 11.0(, 1997), ph (R=0.32, P=0.004) ph, RDA, ph,, ph, ph (, 2011),, M,,, RDA, M, (, 2014) TSS,, RDA, chl a ; TSS DO (R= 0.494, P=0.000), RDA TSS DO 1, M TSS,,,,,,, (, 2016) : chl a, RDA, chl a, chl a, TP chl a, TN chl a chl a, TN TP, (, 2011),,,,,, RDA,, 4,,,,,,, RDA : chl a, ; M, ; ph

9 48 48,,,,, ph., 8(4): , :, , :, ,,, , 30(4): 18 22,,, , 23(5): ,,, , 38(4): ,,, , 32(2): 31 37,,, , 23(4): ,,, , (1): 45 47,,, , 25(2): ,,, ( )., 27(5): ,,, , (6): 21 25,,, , 35(2): 16 21, , 28(3): 691,,, , 34(23): , (HJ/T ). :, 15 20, ( ). :, ,, :, 25 28,,, , 27(1): ,,, , 35(22): ,,, , 53(19): ,,, , 25(7): ,,, , 21(6): ,,, , 28(4): ,,, , 9(2): ,, :, ,,, , 34(2): 53 61,, R. :, Borcard D, Gillet F, Legendre P,, R. :, Ekvall M K, Hansson L A, Differences in recruitment and life-history strategy alter zooplankton spring dynamics under climate-change conditions. PLoS One, 7(9): e44614 Record N R, Pershing A J, Jossi J W, Biodiversity as a dynamic variable in the Gulf of Maine continuous plankton recorder transect. Journal of Plankton Research, 32(12):

10 1 : 49 COMMUNITY STRUCTURE OF ZOOPLANKTON AND THE DRIVING PHYSICOCHEMICAL FACTORS IN CHANGHU LAKE GUO Kun 1, PENG Ting 1, LUO Jing-Bo 1, YANG De-Guo 2, HE Yong-Feng 2, CHAI Yi 1, 2 (1. College of Animal Science, Yangtze University, Jingzhou , China; 2. Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Science, Key Laboratory of Freshwater Biodiversity Conservation, Ministry of Agriculture, Wuhan , China) Abstract To understand the community structure of zooplankton in Changhu Lake and explore the relevant physicochemical factors on their distribution, we conducted seasonal investigations in 19 sites in the lake from April, 2012 to January, Sixty-seven zooplankton species were identified (excluding protozoa), most of them were rotifers (42 species) having the highest abundance and biomass. The seasonal difference in zooplankton abundance was significant, highest in summer (4412ind./L) and lowest in winter (831ind./L). In addition, the species composition of zooplankton changed greatly in season; and the average of species seasonal subrogation was greater than 58.14%, while for dominant species, it was insignificant. Eight dominant species were determined and all were rotifers. Brachiouns calyciflorus and Polyarthra trigla were the dominants during the survey; the dominance and occurrence frequency of P. trigla were the largest in every season, taking 59.13% of the total. Meanwhile, the water quality of the lake was assessed, showing moderate pollution as indicated by the Shannon Index, Pielou Index and Margalef Index, and was in eutrophic state according to E Index. Results of correlation analysis, stepwise multiple regression and redundancy analysis show that water temperature and chlorophyll a concentration were two main factors on seasonal succession of zooplankton community in the lake, while total phosphorus affected the zooplankton community indirectly by changing composition of phytoplankton species. Featured with alkali tolerance, B. calyciflorus was better adapted in alkaline water of Changhu Lake. The relatively lower dissolved oxygen in the Mahongtai Area of the lake limited the growth of rotifer in summer, and total suspended solid affected zooplankton indirectly due to water clarity decrease. Chemical oxygen demand influenced tolerant species such as P. trigla, Keratella cochlearis, and had positive effect on zooplankton abundance. Key words Changhu Lake; zooplankton; stepwise multiple regression; redundancy analysis

Microsoft Word 刘成士_new_.doc

Microsoft Word 刘成士_new_.doc 46 3 Vol.46, No.3 2015 5 OCEANOLOGIA ET LIMNOLOGIA SINICA May, 2015 * 1 2 2 1 1 (1. 310036; 2. 310007), 30, 9,,, 171 ind./l, 0.0158 mg/l,,,,, 2012 2013,,,, ; ; ; Q178 doi: 10.11693/hyhz20141000279,,, (Herzig,