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Dugan P.J.,Worldfish Center | Barlow C.,Australian Center for International Agricultural Research | Agostinho A.A.,State University of Maringá | Baran E.,Worldfish Center | And 10 more authors.
Ambio | Year: 2010

The past decade has seen increased international recognition of the importance of the services provided by natural ecosystems. It is unclear however whether such international awareness will lead to improved environmental management in many regions. We explore this issue by examining the specific case of fish migration and dams on the Mekong river. We determine that dams on the Mekong mainstem and major tributaries will have a major impact on the basin's fisheries and the people who depend upon them for food and income. We find no evidence that current moves towards dam construction will stop, and consider two scenarios for the future of the fisheries and other ecosystems of the basin. We conclude that major investment is required in innovative technology to reduce the loss of ecosystem services, and alternative livelihood strategies to cope with the losses that do occur. © 2010 Royal Swedish Academy of Sciences.


PubMed | Chinese Academy of Fishery Sciences and Yangtze River Fisheries Research Institute
Type: | Journal: Marine genomics | Year: 2015

Coilia nasus is an anadromous kind of small to moderate size fish species, and limited transcriptomics research has been performed. In the present study, we performed Illumina sequencing to produce a 22,996,612 clean reads representing with a total of 4,599,079,601 (4.5Gb) nucleotides comprehensive transcript dataset for ovary of C. nasus. Over 20 million total reads were assembled into 63,141 unigenes, and 27,027 annotated genes were predicted by Blastx and ESTScan, respectively. Applying Blast analysis and functional annotation (e.g., GO, COG, Swissprot and KEGG), we have sampled an extensive and diverse expressed gene catalog for C. nasus representing a large proportion of the genes expressed in the ovary development process. This approach will assist in the discovery and annotation of novel genes that play key roles in anadromous fish spawning migration process.


Li J.,Wuhan Textile University | Gan J.,Yangtze River Fisheries Research Institute | Wang G.,Wuhan Textile University | Chen Z.,Wuhan Textile University | Gong Y.,Wuhan Textile University
MATEC Web of Conferences | Year: 2016

As a kind of extensive sources and low cost industrial waste, fly ash has many features, such as porosity, large surface area, adsorption capacity, chemical activity and weakly alkaline, which seem a wide prospect of application in wastewater treatment. This study proposed the acid modification test on fly ash. The effect of key factors including the particle size, pH, the dosage of fly ash, adsorption time and dosage of the modifier on domestic sewage removal efficiencies were evaluated. The optimum conditions and the corresponding removal efficiency were determined. The results show that the removal efficiency is increased firstly and steady subsequently with the increase of fly ash dosage, increased firstly and decreased subsequently with the increase of adsorption time, and increased firstly and decreased subsequently with the increase of pH value. The removal efficiency can up to 95.19% when 0.7 g fly ash added in 200 mL wastewater when the pH value was adjusted to 5 at the adsorption time of 20 min. And the best particle size of fly ash is 200 meshes, when used 2mol/L hydrochloride as modifier and soaked fly ash for 2h, and the ratio of hydrochloride and fly ash is 1mL / g, the effect is best. It also finds obviously that fly ash can have a better effect on removal efficiency than raw fly ash. © The Authors, published by EDP Sciences, 2016.


Li J.,Wuhan Textile University | Gan J.,Yangtze River Fisheries Research Institute | Wu L.,Wuhan Textile University | Yi J.,Wuhan Textile University
MATEC Web of Conferences | Year: 2016

Fly ash with a large number of active sites can occur with the adsorbent chemical and physical adsorption, and therefore have a strong adsorption capacity. The original fly ash and raw fly ash compared to the physical and chemical properties to a significant change. On the fly ash in industrial water treatment application were outlined. The purpose is to focus on the modification methods of fly ash and comparison of raw fly ash and fly ash in the effect of dyeing wastewater. Single factor test method; select the appropriate modifier to study the dosage, pH, stirring time on the modification of adsorption properties of fly ash before and after. The results showed that the modified fly ash was better than the adsorption. Greatly improves on active red X-3B dye wastewater removal capacity, pH = 5, 6, dosage is 5g / L, the mixing time is 30min, COD removal rate reached 73.07%. This modified material can be used as adsorbent for pre-treating dying wastewater. © The Authors, published by EDP Sciences, 2016.


Li J.,Wuhan Textile University | Gan J.,Yangtze River Fisheries Research Institute | Chen Y.,Wuhan Textile University
Applied Mechanics and Materials | Year: 2011

The objectives of this work are to study the influence of fluoride additives on aluminum recycling from the boiler slag. The effect of adding different amounts of fluoride, such as NaF, NH 4F, KF and CaF 2, was investigated. An elemental analysis of aqueous solutions leached by sulfuric acid and hydrochloric acid was determined by EDTA-Na 2-ZnCl 2 titration method. The components and microstructures of the samples were examined by means of XRF, XRD and SEM. Acid strength, leaching time, solid/liquid ratios and different additives were conducted in this experiment. The fluoride additives have a significant effect on the leachability of alumina in the boiler slag. NH 4F is the best choice economically because of low dosage and high efficiency. © (2011) Trans Tech Publications.


Li J.P.,Wuhan Textile University | Hu Y.J.,Wuhan Textile University | Gan J.H.,Yangtze River Fisheries Research Institute
Applied Mechanics and Materials | Year: 2014

Sewage sludge treatment and disposal has become a hot issue of current environmental concern, not only its effect will cause secondary pollution to the environment, more importantly, a large quantity of sludge is produced and growth rapidly, acceptable urban area is limited. So it's become an important issue need to be solved by us urgently. This article present the current domestic sewage sludge treatment and disposal methods respectively, elaborate the ways for utility, explain the practical advantages and disadvantages of each of these approaches and analyze the existing problems. At the same time, a number of resource utilization of new technologies was prospected. © (2014) Trans Tech Publications, Switzerland.


Li Z.-H.,Yangtze River Fisheries Research Institute | Li Z.-H.,University of South Bohemia | Zhong L.-Q.,Yangtze River Fisheries Research Institute | Mu W.-N.,Yangtze River Fisheries Research Institute | And 3 more authors.
Xenobiotica | Year: 2016

1. The purpose of this study was to compare tributyltin (TBT)-induced cytochrome P450 1 (CYP450 1) regulation in liver, gills and muscle of juvenile common carp (Cyprinus carpio).2. Fish were exposed to sublethal concentrations of TBT (75, 0.75 and 7.5 g/L) for 60 days. CYP450 1A was measured at the enzyme activity level as 7-ethoxyresorufin-O-deethylase (EROD) activity, as well as the mRNA expression of CYP450 1 family genes (CYP1A, CYP1B, CYP1C1 and CYP1C2) in fish tissues.3. Based on the results, the liver displayed the highest absolute levels of EROD activity, both under nonexposed and exposed conditions. Additional, EROD activities and CYP1A gene levels showed a good correlation in all three organs. According to the mRNA expression of CYP450 1 family genes, it suggested that CYP1A was to accommodate most EROD activity in fish, but other CYP450 forms also involved in this proceeding.4. Overall, the study revealed both similarities and differences in the concentration-dependent CYP450 1 responses of the three target organs, which could provide useful information to better understand the mechanisms of TBT-induced bio-toxicity. © 2015 Taylor and Francis.


Li Z.-H.,Yangtze River Fisheries Research Institute | Li Z.-H.,University of South Bohemia | Li P.,Yangtze River Fisheries Research Institute | Li P.,University of South Bohemia | Shi Z.-C.,Yangtze River Fisheries Research Institute
PLoS ONE | Year: 2015

The aim of the present study was to investigate the effect of Tributyltin (TBT) on brain function and neurotoxicity of freshwater teleost. The effects of long-term exposure to TBT on antioxidant related indices (MDA, malondialdehyde; SOD, superoxide dismutase; CAT, catalase; GR, glutathione reductase; GPx, glutathione peroxidase), Na+-K+-ATPase and neurological parameters (AChE, acetylcholinesterase; MAO, monoamine oxidase; NO, nitric oxide) in the brain of common carp were evaluated. Fish were exposed to sublethal concentrations of TBT (75 ng/L, 0.75 μg/L and 7.5 μg/L) for 15, 30, and 60 days. Based on the results, a low level and short-term TBT-induced stress could not induce the notable responses of the fish brain, but long-term exposure (more than 15 days) to TBT could lead to obvious physiological-biochemical responses (based on the measured parameters). The results also strongly indicated that neurotoxicity of TBT to fish. Thus, the measured physiological responses in fish brain could provide useful information to better understand the mechanisms of TBT-induced bio-toxicity. © 2015 Li et al.


Li Z.-H.,University of South Bohemia | Li P.,University of South Bohemia | Shi Z.-C.,Yangtze River Fisheries Research Institute
Environmental Toxicology | Year: 2015

Tributyltin (TBT), as antifouling paints, is widely present in aquatic environment, but little is known regarding the toxicity of TBT on fish brain. In this study, the effects of exposure to TBT on the antioxidant defense system, Na+-K+-ATPase activity, neurological enzymes activity and Hsp 70 protein level in brain of juvenile common carp (Cyprinus carpio) were studied. Fish were exposed to sublethal concentrations of TBT (5, 10 and 20 μg/L) for 7 days. Based on the results, with increasing concentrations of TBT, oxidative stress was apparent as reflected by the significant higher levels of oxidative indices, as well as the significant inhibition of all antioxidant enzymes activities. Besides, the activities of Acetylcholinesterase (AChE), Monoamine oxidases (MAO) and Na+-K+-ATPase were significantly inhibited after exposure to TBT with higher concentrations. In addition, the levels of Hsp 70 protein were evaluated under TBT stress with dose-depended manner. These results suggest that selected physiological responses in fish brain could be used as potential biomarkers for monitoring residual organotin compounds present in aquatic environment. © 2014 Wiley Periodicals, Inc.


Zhu J.-Q.,Yangtze University | Li G.,Yangtze River Fisheries Research Institute
Energy Education Science and Technology Part A: Energy Science and Research | Year: 2012

The Four-lake watershed (FLW) is an important area in Hubei province in China. In the last few decades, due to the impacts of population growth, industrial development, inadequate and aging water infrastructure, and pollutions, its environment state has been deteriorating. FLW has also been suffering from flooding whenever the Yangtze River overflows or water-logging problem during heavy rainfall. In view of these problems, to ensure the future sustainable development of the FLW socially and economically, the Hubei provincial government formally implemented an integrated management and control strategy for the Hong-hu Lake of FLW, which includes returning reclaimed lands to lakes, proper treatment of industrial and municipal wastes before discharging to receiving water bodies, planting of floating grasses, increasing fish species and population, and active participation of its residents. Three years after implementing the integrated management, there is a clear evidence of ecological recovery and restoration of the environmental integrity of the Hong-hu Lake of FLW. © Sila Science.

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