نتایج جستجو برای: aquaculture development
تعداد نتایج: 1424205 فیلتر نتایج به سال:
The contribution of aquaculture and fisheries to Gross Domestic Product (GDP) is considered as one the most important indicators for assessing economic performance country. A large section Bihar’s population relies on agriculture, animal husbandry, fishing their livelihood. sector plays a critical role in ensuring nutritional security creating employments. culture consumption fish therefore has...
Industrial aquaculture is a dynamic area capable of solving problems healthy nutrition and food security. Increase organic pollution, number opportunistic microorganisms in the aquatic environment fish farms global contamination feed by mycotoxigenic fungi are serious industrial cultivation. The results weakening general condition fish, immunosuppression, occurrence various diseases complicated...
ronmental issues. Despite oversight by U.S. federal and state regulatory agencies and despite sustainability efforts within the aquaculture industry, advocacy groups and the public are concerned about the effects of aquaculture on the environment. Specific concerns include the effects of effluents and nutrient-loading; water, land and energy use; feed composition; drugs and chemicals; and food ...
An overview of the current scientific knowledge available on climate change implications for fisheries and aquaculture is provided through three technical papers that were presented and discussed during the Expert Workshop on Climate Change Implications for Fisheries and Aquaculture (Rome, 7–9 April 2008). A summary of the workshop outcomes as well as key messages on impacts of climate change o...
Aquaculture is the fastest growing food production industry globally and considered to have greatest potential meet demand for seafood being a solution overfishing. Despite benefits of aquaculture, rapid growth intensification (so-called conventional aquaculture) has raised concerns about safety, fish welfare, environmental social issues stemming from tragedy commons. These need be addressed en...
In this report we present a comparative study realized on different aquaculture water samples collected from several fish farms in Tunisia. For each water sample, significant physiochemical parameters such as conductivity, pH, NH4 + , Na + , Ca 2+ , F and NO3 were determined using a potentiometric multi-sensor system named "electronic tongue". Experimental analysis data were standardized and su...
Antimicrobials used in salmon aquaculture pass into the marine environment. This could have negative impacts on marine environmental biodiversity, and on terrestrial animal and human health as a result of selection for bacteria containing antimicrobial resistance genes. We therefore measured the numbers of culturable bacteria and antimicrobial-resistant bacteria in marine sediments in the Calbu...
A bioflocculant-producing bacterium, Bacillus megaterium SP1, was isolated from biofloc in pond water and identified by using both 16S rDNA sequencing analysis and a Biolog GEN III MicroStation System. The optimal carbon and nitrogen sources for Bacillus megaterium SP1 were 20 g L-1 of glucose and 0.5 g L-1 of beef extract at 30°C and pH 7. The bioflocculant produced by strain SP1 under optimal...
1. Current State of Aquaculture and Environment 2. Aquaculture Water Constituents 3. Waste Water Discharge Guidelines for Aquaculture 4. Introduction to Recirculating Aquaculture Systems (RAS) 5. Recirculating Aquaculture System Applications 6. Primary Clarification – Suspended Solids removal 7. Bacterial Processes 7.1 Nitrification 7.1.1 Nitrition 7.1.2 Nitration 7.2 Denitrification 8. Filtrat...
Consumer demand for affordable fish drives the ever-growing global aquaculture industry. The intensification and expansion of culture conditions in the production of several finfish species has been coupled with an increase in bacterial fish disease and the need for treatment with antimicrobials. Understanding the molecular mechanisms of antimicrobial resistance prevalent in aquaculture environ...
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