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Effects of salinity, carbonate alkalinity, and pH on physiological indicators of nutrition transporter for potential habitat restoration of amphipod Eogammarus possjeticus

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Journal of Oceanology and Limnology 2020年第6期38卷 1925-1935页

作者： XUE Suyan MAO Yuze WANG Jinye fang jianguang ZHAO Fazhen Key Laboratory of Sustainable Development of Marine Fisheries Ministry of AgricultureShandong Provincial Key Laboratory of Fishery Resources and Eco-environmentYellow Sea Fisheries Research InstituteChinese Academy of Fishery SciencesQingdao 266071China Laboratory for Marine Ecology and Environmental Science Pilot National Laboratory for Marine Science and TechnologyQingdao 266071China College of Marine Science and Engineering Qingdao Agriculture UniversityQingdao 266109China

The effects of three environmental factors,salinity,carbonate alkalinity,and pH,on the survival,feeding,and respiratory metabolism of Eogammarus possjeticus(Amphipoda:Gammaridae)were investigated experimentally.The results show that E.possjeticus could tolerate a broad salinity range.The 24-h lowest median lethal salinity was 2.70,and the highest was 47.33.The 24-h median lethal alkalinity and pH were 23.05 mmol/L and 9.91,respectively;both values decreased gradually with time.Different values of salinity,carbonate alkalinity,and pH resulted in significant differences in the cumulative mortality(P<0.05).The ingestion rate and feed absorption efficiency were significantly affected by the coupling of the three environmental factors(P<0.05).With increases in carbonate alkalinity,salinity,and pH,both ingestion rate and feed absorption efficiency exhibited a downward trend,indicating a decline in feeding ability under high salinity and more alkaline water conditions.The coupling of salinity,carbonate alkalinity,and pH also had a significant effect on respiration and excretion(P<0.05).The oxygen consumption rate increased first and then decreased with increasing carbonate alkalinity.Under the same carbonate alkalinity values,the oxygen consumption rate increased with increasing salinity.Under the same carbonate alkalinity and salinity,the oxygen consumption rate initially increased and then decreased with increasing pH.The O:N ratio first increased and then decreased with increasing carbonate alkalinity.When carbonate alkalinity was less than 6 mmol/L,the O:N ratio increased with increasing salinity and decreased with increasing pH.The results demonstrate that changes in salinity,carbonate alkalinity,and pH had a measurable impact on the osmotic pressure equilibrium in E.possjeticus and affected the energy supply mode(i.***.ratio of metabolic substrate).

关键词： Eogammarus possjeticus saline and alkaline water survival feeding respiratory metabolism

Response of phytoplankton to multispecies mariculture:a case study on the carrying capacity of shellfish in the Sanggou Bay in China

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Acta Oceanologica Sinica 2008年第1期27卷 102-112页

作者： GE Changzi fang jianguang SONG Xiefa MAO Yuze YE Naihao Department of Marine Fishery Ocean University of China Qingdao 266003 China Key Laboratory for Sustainable Utilization of Marine Fishery Resource Yellow Sea Fisheries Research Institute Qingdao266071 China

A muhispecies model for shellfish polycuhure in the Sanggou Bay in China used for large-scale long-line cultivation of the Chinese scallop Chlamysfarreri, the Pacific oyster Crassostrea gigas and the kelp Laminaria japonica is presented. The model includes key physical processes which are the transports of matter at the system boundary, and the main biological process that is the primary production and nutrients release from the bottom. By the model, the seasonal fluctuations of phytoplankton biomass and dissolved inorganic nitrogen（DIN） in 1994 are simulated. Furthermore, if the kelp culture scale is kept constant and the Chinese scallop and the Pacific oyster culture scales are adjusted, virtual shellfish farms are funded and responses of phytoplankton to the largescale shellfish culture are simulated. According to these simulated results, the room limitation, and the hypothesis that shellfish will not grow well if the phytoplankton biomass is less than 8.2 mg/m^3 , the expandable multiple of scallop culture k and that of oyster culture y are determined as k = -0.276 5y ＋4.690 5 and 0.133 3k ＋0.006 6y≤0.667 5, where, k （ or y） is equal to 1, the culture scale of scallop （ or oyster） is 8.8 x 109 individuals （or 66 ha, with a density of 59 ind./m^2 ）, and the kelp culture scale is 3 300 ha with a density of 12 ind./m^2.

关键词： multispecies model kelp Chinese scallop Pacific oyster carrying capacity

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

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Acta Oceanologica Sinica 2017年第10期36卷 97-105页

作者： JIANG Zengjie DU Meirong fang Jinghui GAO Yaping LI Jiaqi ZHAO Li fang jianguang Key Laboratory of Sustainable Development of Marine Fisheries of Ministry of Agriculture Yellow Sea Fisheries Research Institute Chinese Academy of Fishery Sciences Function Laboratory for Marine Fisheries Science and Food Production Processes Qingdao National Laboratory for Marine Science and Technology Key Laboratory of Marine Ecology and Environmental Sciences Institute of Oceanology Chinese Academy of Sciences

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.

关键词： phytoplankton picoplankton protist microbial food web Chlamys farreri

Assessing the effects of oyster/kelp weight ratio on water column properties: an experimental IMTA study at Sanggou Bay, China

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Journal of Oceanology and Limnology 2020年第6期38卷 1914-1924页

作者： fang Jinghui fang jianguang CHEN Qionglin MAO Yuze JIANG Zengjie DU Meirong GAO Yaping LIN Fan Laboratory for Marine Fisheries Science and Food Production Processes Pilot National Laboratory for Marine Science and Technology(Qingdao)/Yellow Sea Fisheries Research InstituteChinese Academy of Fishery SciencesQingdao 266071China Key Laboratory of Marine Biotechnology of Zhejiang Province School of Marine SciencesNingbo UniversityNingbo 315211China

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.

关键词： Integrated Multi-Trophic Aquaculture(IMTA) Pacific oyster Crassostrea gigas kelp Saccharina japonica

Applicability of Perinereis aibuhitensis Grube for Fish Waste Removal from Fish Cages in Sanggou Bay,P.R.China

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Journal of Ocean University of China 2017年第2期16卷 294-304页

作者： fang Jinghui JIANG Zengjie JANSEN Henrice M. HU Fawen fang jianguang LIU Yi GAO Yaping DU Meirong Key Laboratory for Sustainable Utilization of Marine Fisheries Resources of Ministry of Agriculture Yellow Sea Fisheries Research InstituteQingdao 266071P.R.China Institute of Marine Research Bergen 5817Norway Institute for Marine Resources and Ecosystem Studies Yerseke 4400 ABthe Netherlands Marine Biology Institute of Shandong Province Qingdao 266100P.R.China Laboratory for Marine Fisheries Science and Food Production Processes Qingdao National Laboratory for Marine Science and TechnologyQingdao 266237P.R.China

The present study investigated the applicability of integrated polychaete-fish culture for fish waste removal to offset negative impact induced by organic benthic enrichment.A field study demonstrated that deposition rate was significantly higher underneath the fish farm than that in control area.The material settling under the farm was characterized by a high amount of fish feces(45%) and uneaten feed(27%).Both feeding rate(FR) and apparent digestibility rate(ADR) increased with decreasing body weight,as was indicated by significantly a higher rate observed for the groups containing smaller individuals in a lab study.The nutrient in fresh deposited material(De) was higher than that in sediments collected under the farm(Se),resulting in lower feces production but higher apparent digestibility rate for the De group as feeding rate was similar.Consequently,higher nutrient removal efficiency was observed in the De group.A mass balance approach indicated that approximately 400–500 individuals m^(-2) is required for removing all waste materials deposited underneath the fish farm,whereas abundance can be lower(about 300–350 individuals m^(-2)) when only the fish waste needs to be removed.The results showed that a significant amount of waste had been accumulated in the fish cages in Sanggou Bay.The integration of fish with P.aibuhitensis seems promising for preventing organic pollution in the sediment and therefore is an effective strategy for mitigating negative effect of fish farms.Thus such integration can become a new IMTA(integrated multi-trophic aquaculture) model in Sanggou Bay.

关键词： polychaete fish cage farming IMTA carbon nitrogen environmental recovery

Tolerance, Oxygen Consumption and Ammonia Excretion of Ophiopholis sarsii vadicola in Different Temperatures and Salinities

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Journal of Ocean University of China 2015年第3期14卷 549-556页

作者： fang Jinghui ZHANG Jihong JIANG Zengjie ZHAO Xuewei JIANG Xu DU Meirong GAO Yaping fang jianguang Key Laboratory for Sustainable Utilization of Marine Fisheries Resources Ministry of Agriculture Yellow Sea Fisheries Research Institute Zhangzidao Group Co. Ltd.

There are more than 2000 species of brittle stars in the world. For most of them, many scientific questions including basic characteristics of eco-physiology are still unknown. In the present study, Ophiopholis sarsii vadicola acclimated at 15℃, salinity 31, were assessed for temperature and salinity tolerance. Its oxygen consumption and ammonia excretion were studied at different temperatures(5, 10, 15, 20, 25℃) and salinities(25, 30, 35). O. sarsii vadicola could tolerate 0–24℃ and no brittle star was dead in the salinity range of 19–48 in the experimental situation. Two-way ANOVA showed that the oxygen consumption and ammonia excretion normalized with both dry mass and wet mass, Q10, which is used to describe the temperature sensitivity of respiration, and moisture content were significantly affected by temperature and salinity, and the combined effects of the two factors were significant. Stepwise multiple regression analysis revealed that logarithmic oxygen consumption and ammonia excretion showed a significant positive relationship with logarithmic temperature and salinity. The logarithmic moisture content of the brittle stars showed an inverse relationship with logarithmic salinity, but a positive relationship with logarithmic temperature. This suggests that the tolerance of temperature and salinity of brittle stars is closely related to their living environment, and that the effects of temperature on oxygen consumption are more significant at higher salinity, and that the ammonia excretion is less affected by salinity at lower temperatures.

关键词：温度敏感性氨氮排泄高盐度氧消耗氧气多元逐步回归分析正相关关系代谢

Response of Yesso scallop Patinopecten yessoensis to acute temperature challenge: physiological and biochemical parameters

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Journal of Oceanology and Limnology 2019年第1期37卷 321-329页

作者： JIANG Weiwei DU Meirong fang jianguang GAO Yaping MAO Yuze CHEN Qionglin LIN Fan JIANG Zengjie Key Laboratory of Sustainable Development of Marine Fisheries Ministry of Agriculture Yellow Sea Fisheries Research Institute Chinese Academy of Fishery Sciences Laboratory for Marine Fisheries Science and Food Production Processes Qingdao National Laboratory for Marine Science and Technology

Water temperature is generally considered to be a major factor af fecting the physiological and biochemical activities of marine bivalves. Here, the physiological and biochemical responses of Yesso scallop, Patinopecten yessoensis, to acute water temperature changes in summer were studied. Scallops were transferred directly to a lower temperature( T dec treatment)(from 23°C to 15°C) or to a higher temperature( Ti nc treatment)(from 15°C to 23°C) for 72 h, respectively. Results showed that the oxygen consumption and ammonia-N excretion rates of P. yessoensis decreased signi?cantly in the T dec treatment but increased dramatically at 6 h in the Ti nc treatment( P <0.05). In the T dec treatment, hepatopancreas antioxidant enzyme activities, superoxide dismutase(SOD) and catalase(CAT) activities, increased substantially within 72 h( P <0.05). However, a signi?cant decrease in CAT activity was found at 12 h in the Ti nc treatment( P <0.01).A signi?cant enhancement of acid phosphatase(ACP) activity and malondialdehyde(MDA) content was detected when scallops were acutely exposed to a temperature of 15°C. The levels of Cu/Zn-SOD gene expression in their gills up-regulated signi?cantly in response to acute temperature changes( P <0.01). These data suggest that acute temperature change af fects physiological and biochemical functions, and improve our knowledge of P. yessoensis under conditions of thermal stress.

关键词： Patinopecten yessoensis acute water temperature changes physiology biochemical activities

AFLP analysis revealed differences in genetic diversity of four natural populations of Manila clam (Ruditapes philippinarum) in China

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Acta Oceanologica Sinica 2007年第1期26卷 150-158页

作者： LIU Xiangquan BAO Zhenmin HU Jingjie WANG Shi ZHAN Aibin LIU Hui fang jianguang WANG Rucai Laboratory of Marine Genetics and Breeding （ MGB） Ocean University of China Qingdao 266003 China Yellow Sea Fisheries Research Institute Chinese Academy of Fishery Science Qingdao 266071 China

The amplified fragment length polymorphism （AFLP） technology was used to analyze the genetic diversities in four natural populations of Manila clam （ Ruditapes philippinarum）, distributed in four sea areas of China, i.e. , the Bohai Sea, the Huanghai Sea, the East China Sea and the South China Sea. Two hundred and sixty-four AFLP loci were analysed in 195 individuals and revealed high levels of genetic diversity. The percentage of polymorphic loci ranged from 92.13% to 96.06% and the Shannon＇ s information index was from 0.256 8 to 0. 275 6. By analyzing molecular variance （ AMOVA）, it was found that there were high levels of genetic differentiation between populations of Qingdao and the other three sea areas. Cluster analysis by Nei＇ s pairwise distances grouped specimens by geographical origin, except the population of Qingdao. A conclusion can be drawn that there are high genetic diversities in the four natural populations of Manila clam in China and some distinct differences existed among and between the four populations. The results also indicated that human cultivation activities will have great influence on the genetic structure of the population of Qingdao.

关键词： Ruditapes philippinarum genetic diversity geographical population AFLP

Effect of Epinephrine on the Settlement and Metamorphosis of Manila Clam Larvae

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Journal of Ocean University of China 2006年第2期5卷 141-145页

作者： LU Sumin BAO Zhenmin LIU Hui fang jianguang Laboratory of Molecular Genetics Breeding Division of Marine Life Science and TechnologyOcean University of China Qingdao 266003 P. R. China Key Laboratory of Chinese Ministry of Agriculture for Sustainable Utilization of Marine Fisheries Resources Yellow Sea Fisheries Research Institute Qingdao 266071 P. R. China

化学动机和 DDRT-PCR (微分显示颠倒 transcriptionPCR ) 被采用在马尼拉蚌幼虫的解决和变形上调查肾上腺素(EPI ) 的效果。化学动机证明 EPI 根本在马尼拉蚌幼虫的变形上有效果到某程度集中并且在设计的所有处理。动机的最重要的结果在... 详细信息

化学动机和 DDRT-PCR (微分显示颠倒 transcriptionPCR ) 被采用在马尼拉蚌幼虫的解决和变形上调查肾上腺素(EPI ) 的效果。化学动机证明 EPI 根本在马尼拉蚌幼虫的变形上有效果到某程度集中并且在设计的所有处理。动机的最重要的结果在 10 ~ 的集中被获得(-6) 摩尔 L^(-1) 并且为 4h，用六教材对的 .DDRT-PCR 证明基因表达式模式是相当不同的 betweenEPI 处理和控制。343 个扩大乐队总共被获得，在哪个之中，(19.53%) 67 是差别出现。因此， EPI 在眼睛点的基因表示上有效果幼虫的马尼拉蚌。EPI 是为马尼拉蚌的解决和变形 inducer，这能被假设。EPI 可以在膜上由绑定导致幼虫解决和变形到受体然后改变幼虫房间的基因表示。

关键词：肾上腺素变形马尼拉菲律宾化学诱导