scholarly journals Paradigm changes in freshwater aquaculture practices in China: Moving towards achieving environmental integrity and sustainability

AMBIO ◽  
2017 ◽  
Author(s):  
Qidong Wang ◽  
Zhongjie Li ◽  
Jian-Fang Gui ◽  
Jiashou Liu ◽  
Shaowen Ye ◽  
...  
2015 ◽  
Vol 2 (2) ◽  
pp. 32-38 ◽  
Author(s):  
N. Matvienko ◽  
A. Vashchenko ◽  
I. Tsiganok ◽  
L. Buchatsky

Aim. To investigate the epizootic state of fi sheries in Ukraine; to study the biological specifi cities of viral and bacterial isolates of fi sh in freshwater aquaculture. Methods. The epizootic state of fi sheries was defi ned ac- cording to the surveillance plan for fi sheries, virological (biosampling of sensitive fi sh species, virus isolation on sensitive passaged cell cultures), serological (enzyme immunoassay, virus neutralization test using sensitive passaged cell cultures) and molecular-biological (reverse transcriptase polymerase chain reaction − RTPCR) methods of investigation were used. The pathogenicity of the isolated bacteria was studied in the biosample. The identifi cation was performed using Bergey’s Manual. The express-identifi cation of bacteria was performed using the standardized test-system API 20E Bio Merieux (France). Results. The IPNV isolates of rainbow trout were fi rst isolated in the fi sheries of different forms of ownership in the western regions of Ukraine (Volyn, L’viv, Transcarpathian, Chernivtsi regions). It was demonstrated that different age groups of carp are infested with the virus in the fi sheries of L’viv, Donetsk, Chernihiv, Kyiv, and Odesa regions which testifi es to a wide spread of the virus in Ukraine. Out of fi sh infectious diseases the red spot-like disease and the swim bladder infl ammation of carp, the diseases of young trout and sturgeon were detected in the investigated fi sheries of Ukraine. Conclusions. The epizootic data were used to estimate the condition of the fi sheries in Ukraine in terms of fi sh infectious diseases. An infectious pancreatic necrosis virus, new for Ukraine, was revealed. It was found to affect rainbow trout (Oncorhynchus mykiss , Walbaum, 1792) and the spread of SVCV in carp fi sheries was demonstrated. As for bacterial fi sh diseases, the decrease in the epizootic situation was described along with considerable extension of the range of species of bacterial pathogens of fi sh. Annual systematic monitoring and measures of preventing the introduction of the agents of infectious diseases are the guarantee of protection of the specialized fi sheries of Ukraine.


Author(s):  
Cymie R. Payne

The principle of ‘environmental integrity’ is a fundamental aspect of jus post bellum. Human life, economy, and culture depend on a healthy, functioning environment. However, environmental integrity is a complex concept to describe. Doctrinal thresholds for legally material environmental damage (significant, long-term, widespread) do not capture it. This chapter interrogates the jus post bellum literature and then turns to scholarship on wilderness management in the Anthropocene era, which also engages with the meaning of ‘environmental integrity’, ‘naturalness’, ‘unimpaired’, or, in the words of the Factory at Chorzów case which sets the international law standard for reparations of damage, ‘the situation which would, in all probability, have existed if that act had not been committed’. Recognition that pristine or historical conditions are often impossible to recover or maintain leads to the legal, ethical, and scientific analysis of evolving environmental norms that this chapter offers.


2019 ◽  
Vol 14 (34) ◽  
pp. 1855-1861
Author(s):  
Razafindrabe Miarisoa ◽  
Sugino Hiroaki ◽  
Ishihara Hiroe ◽  
Yagi Nobuyuki

Author(s):  
David O. Carpenter

The world economy has been growing by an average of 3.5% a year. Continued global development is sustainable if overall social assets remain constant or rise over time, including manufactured, human, and environmental capital. Sustainable development requires that society not decrease its overall assets. But unregulated global trade may result in long-term loss of environmental capital. Multilateral governance is needed. Classical business models tend to view environmental damage as an externality—an impact on a third party's welfare that is neither compensated nor appropriated. The Rio Declaration on Environment and Development clearly states that economic development must err on the side of environmental integrity. Whereas UN Environmental Program policy requires precaution in the face of scientific uncertainty, World Trade Organization policy requires scientific certainty before precaution can be used. The conflict is obvious. In fact, there is gross lack of policy coordination across institutions. This article looks at some environmental strains and concludes that trade policy must address all aspects of human welfare, not merely the economic.


Water ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1461
Author(s):  
Hao Fang ◽  
Nan Ye ◽  
Kailong Huang ◽  
Junnan Yu ◽  
Shuai Zhang

Shrimp aquaculture environments are a natural reservoir of multiple antibiotic resistance genes (ARGs) due to the overuse of antibiotics. Nowadays, the prevalence of these kinds of emerging contaminants in shrimp aquaculture environments is still unclear. In this study, high-throughput sequencing techniques were used to analyze the distribution of ARGs and mobile genetic elements (MGEs), bacterial communities, and their correlations in water and sediment samples in two types of typical shrimp (Procambarus clarkii and Macrobrachium rosenbergii) freshwater aquaculture environments. A total of 318 ARG subtypes within 19 ARG types were detected in all the samples. The biodiversity and relative abundance of ARGs in sediment samples showed much higher levels compared to water samples from all ponds in the study area. Bacitracin (17.44–82.82%) and multidrug (8.57–49.70%) were dominant ARG types in P. clarkii ponds, while sulfonamide (26.33–39.59%) and bacitracin (12.75–37.11%) were dominant ARG types in M. rosenbergii ponds. Network analysis underlined the complex co-occurrence patterns between bacterial communities and ARGs. Proteobacteria, Cyanobacteria, and Actinobacteria exhibited a high abundance in all samples, in which C39 (OTU25355) and Hydrogenophaga (OTU162961) played important roles in the dissemination of and variation in ARGs based on their strong connections between ARGs and bacterial communities. Furthermore, pathogens (e.g., Aeromonadaceae (OTU195200) and Microbacteriaceae (OTU16033)), which were potential hosts for various ARGs, may accelerate the propagation of ARGs and be harmful to human health via horizontal gene transfer mediated by MGEs. Variation partitioning analysis further confirmed that MGEs were the most crucial contributor (74.76%) driving the resistome alteration. This study may help us to understand the non-ignorable correlations among ARGs, bacterial diversity, and MGEs in the shrimp freshwater aquaculture environments.


2019 ◽  
Vol 245 ◽  
pp. 883-888 ◽  
Author(s):  
Zhang Cheng ◽  
Jun-Bo Liu ◽  
Meng Gao ◽  
Guang-Ze Shi ◽  
Xiao-Jiao Fu ◽  
...  

2007 ◽  
Vol 94 (2) ◽  
pp. 445-458 ◽  
Author(s):  
Dang K. Nhan ◽  
Le T. Phong ◽  
Marc J.C. Verdegem ◽  
Le T. Duong ◽  
Roel H. Bosma ◽  
...  

2020 ◽  
Vol 8 (4) ◽  
pp. 377-384
Author(s):  
Bandla Seshagiri ◽  
MVS Nagireddy ◽  
V Ramachandra Raju ◽  
S Nagireddy ◽  
PV Rangacharyulu ◽  
...  

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