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| 1 | Size fraction of phytoplankton and the contribution of natural plankton to the carbon source of Zhikong scallop Chlamys farreri in mariculture ecosystem of the Sanggou Bay显示文摘The biomass and size fraction of phytoplankton in terms of chlorophyll a(Chl a) was measured during four cruises conducted in April, July, October 2013 and January 2014 in mariculture area, the Sanggou Bay, China.Results show that total Chl a levels in the surface seawater of the Sanggou Bay generally range from 0.10 to 20.46μg/L, with an average value of 2.13 μg/L. Nano-phytoplankton was the most important size-fraction and accounted for about 65.1% of total Chl a. In order to evaluate the importance of the 'protozoan trophic link' for energy transfer from the microbial loop to filter-feeding feeders, Zhikong scallop Chlamys farreri was then offered a natural planktonic community as potential prey. Results show that scallops obtained carbon source from natural plankton with the rate of 11 033.05 μg/(g·d). Protists(nanoflagellates and ciliates) were the dominant source of carbon retained by scallop(48.78%). The microbial loop provided 58.45% of the carbon source for farmed scallops. These results indicate that the microbial loop represent a valuable trophic resource in mariculture system of the Sanggou Bay. | JIANG Zengjie DU Meirong FANG Jinghui GAO Yaping LI Jiaqi ZHAO Li FANG Jianguang | 2017 | Acta Oceanologica Sinica2017，36，10： | 4 |
| 2 | Assessing the effects of oyster/kelp weight ratio on water column properties: an experimental IMTA study at Sanggou Bay, China显示文摘Integrated Multi-Trophic Aquaculture(IMTA)is an effective method for sustainable aquaculture as species from different trophic levels could reduce negative effects from fed species in the environment.A proper proportion of different trophic species in an IMTA system could improve the aquaculture production and environmental sustainability.At present,research on the proper proportions for farming species is scarce.We investigated the effects of IMTA modes of oyster(Crassostrea gigas)and kelp(Saccharina japonica)in different weight ratios on water quality and carbonate system in a closed enclosure experiment for three days in the Sanggou Bay in Shandong Province,China,in December 2017.Nine collocation modes in oyster:kelp weight ratio were tested showing as 24:3,24:2,24:1,16:3,16:2,16:1,8:3,8:2,and 8:1.The water parameters were determined at 17:00 on Day 1(D1),and 6:00 and 17:00 on Days 2(D2)and 3(D3).As two-way ANOVA showed,all increased parameters(dissolved oxygen(DO),pH,chl a,the carbonate system and pCO2)were significantly related to oyster-kelp modes,and interaction between modes and time were also significant(P<0.05).On the 3th day,the 8:3 mode was the highest in DO,pH,chl a,CO32-(P<0.05),and dissolved inorganic carbon(DIC),HCO3-,CO2,and pCO2 were the lowest(P<0.05).According to previous references and the results of this study,the appropriate oyster:kelp proportion at the beginning of winter is from 8:2 to 8:3.The results of this study may help government to optimize the aquaculture structure of Sanggou Bay. | FANG Jinghui FANG Jianguang CHEN Qionglin MAO Yuze JIANG Zengjie DU Meirong GAO Yaping LIN Fan | 2020 | Journal of Oceanology and Limnology2020，38，6： | 2 |
| 3 | Positive solutions for some second-order four-point boundary value problems显示文摘 | Bai Zhanbing Du Zengji | 2007 | J Math Anal Appl2007，，330： | 1 |
| 4 | Triple solutions for higher-order difference equations显示文摘 | Du Zengji Xue Chunyan and Ge Weigao | 2005 | Journal of Inequalities in Pure and Applied Mathematics2005，6，： | 1 |
| 5 | Uniqueness and existence results for a third-ordernonlinear multi-point boundary value problem显示文摘 | Lin Xiaojie Du Zengji Liu Wenbin | 2008 | Applied mathematics and computation2008，，55： | 1 |
| 6 | Solvability of a second-order multi-point boundary value pmblem at resonance显示文摘 | MENG FANCHAO DU ZENGJI | 2009 | Applied Mathematics and Computation2009，208，1： | 1 |
| 7 | Existence and global attractivity of positive periodic solution to a Lotka-Volterra model显示文摘 | Wang Xiaoli Du Zengji Liang Jing | 2010 | Nonlinear Analysis:Real World Applications2010，11，5： | 1 |
| 8 | Positive solutions for some second-order fottr-point boundary value problems显示文摘 | BAI Zhanbing DU Zengji | | Math Anal0，330，： | 1 |
| 9 | Existence of solutions for a class of third-order nonlinear boundary value problem显示文摘 | Du Zengji Ge Weigao Lin Xiaojie | 2004 | J Math Anal Appl2004，294，1： | 1 |
| 10 | Solvability of a second-order multi-point boundary value problem at resonance 显示文摘 | MENG Fanchao DU Zengji | 2009 | Appl Math Comput2009，208，： | 1 |
| 11 | Triple solutions for higher-order difference equations显示文摘 | Du Zengji Xue Chunyan and Ge Weigao | 2005 | Journal of Inequalities in Pure and Applied Mathematics2005，6，： | 1 |
| 12 | Multiple solution for three-point boundary value problem with nonlinear terms de- pending on the first order derivative显示文摘 | Du Zengji Xue Chunyan Ge Weigao | 2005 | Arch Math2005，84，4： | 1 |
| 13 | Asymptotic solution of singularly perturbed second-order differential equation and application to multi-point boundary value problems显示文摘 | Du Zengji Kong Lingju | 2010 | Appl Math Lett2010，23，9： | 1 |
| 14 | Singularly perturbed third-order boundary value problem for nonlinear systems显示文摘 | Du Zengji | 2007 | Appl Math Comput2007，189，1： | 1 |
| 15 | Singularly perturbations for third-order nonlinear multi-point boundary value prob- lem显示文摘 | Du Zengji Ge Weigao Zhou Mingru | 2005 | J Differential Equations2005，218，1： | 1 |
| 16 | Existence and iteration of monotone positive solutions for muhipoint boundary value problem with p -Laplacian operator显示文摘 | MA Dexiang DU Zengji GE Weigao | 2005 | Comput Math Appl2005，50，5： | 1 |
| 17 | Asymptotic solutions for a second-order differential equation with three-point boundary conditions显示文摘 | Du Zengji Bai Zhangbing | 2007 | Applied Mathematics and Computation2007，186，1： | 1 |
| 18 | Multiple solutions for three-point boundary value problem with nonlinear terms depending on the first order derivative显示文摘 | Zengji Du Chunyan Xue Weigao Ge | 2005 | Archiv der Mathematik2005，，4： | 1 |
| 19 | Solutions to m-point boundary value problems of third order ordinary differential equations at resonance显示文摘 | Chunyan Xue Zengji Du Weigao Ge | 2005 | Journal of Applied Mathematics and Computing (-)2005，，1： | 1 |
| 20 | Some higher-order muhi-point boundary value problem at resonance显示文摘 | Du Zengji Lin Xiaojie Ge Weigao | 2004 | Journal of Compu- tational and Applied Mathematics2004，177，1： | 1 |
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