scholarly journals Biological substantiation of improvement of biotechnological map of production of aquaculture products "eco-direction"

2020 ◽  
Vol 10 (1) ◽  
pp. 261-266
Author(s):  
O. V. Honcharova ◽  
R. P. Paranjak ◽  
O. P. Rudenko ◽  
N. A. Lytvyn
Keyword(s):  
Artemia Salina ◽  
Advanced Technology ◽  
Basic Medium ◽  
Active Components ◽  
Recirculating Aquaculture ◽  
Recirculating Aquaculture Systems ◽  
Amaranth Flour ◽  
Pre Treatment ◽  
General Diet ◽  
Aquaculture Production

The influence of the forage factor on the rate of development of tilapia during cultivation in recirculating aquaculture systems has been investigated. Positive results were obtained regarding the feeding of natural feeds after pre-treatment of the basic medium for cultivation. A model installation of tilapia cultivation with advanced technology of feeding functionally active components is offered, which maximally brings aquaculture production to organic. The efficiency of tilapia cultivation in the polyculture of Orеochromis mosambicus and Florida Red was evaluated. The results of the morphometric evaluation of hydrobionts with a comparative analysis of the effectiveness of the use of Arthrospira (Spirulina) platensis, Artemia salina and amaranth flour in the general diet of tilapia are presented.

scholarly journals Recirculating Aquaculture Technologies

2019 ◽  
pp. 35-76 ◽  
Author(s):  
Carlos A. Espinal ◽  
Daniel Matulić
Keyword(s):  
Water Quality ◽  
Quality Control ◽  
Wastewater Treatment ◽  
Water Quality Control ◽  
New Developments ◽  
The Past ◽  
Control Processes ◽  
Recirculating Aquaculture ◽  
Recirculating Aquaculture Systems ◽  
Aquaculture Production

AbstractRecirculating aquaculture technology, which includes aquaponics, has been under development for the past 40 years from a combination of technologies derived from the wastewater treatment and aquaculture sectors. Until recently, recirculating aquaculture systems (RAS) farms have been relatively small compared with other types of modern aquaculture production. The last two decades have seen a significant increase in the development of this technology, with increased market acceptance and scale. This chapter provides a brief overview of the history, water quality control processes, new developments and ongoing challenges of RAS.

Salmon Resources

2020 ◽  
pp. 113-133
Keyword(s):  
Climate Change ◽  
Commercial Fisheries ◽  
Total Production ◽  
Commercial Fishery ◽  
Recirculating Aquaculture ◽  
Freshwater Aquaculture ◽  
Recirculating Aquaculture Systems ◽  
The World ◽  
Aquaculture Production ◽  
Food Production System

Salmon are among the most important fishery resources and are produced by commercial fisheries, aquaculture, and propagation. The total production of salmon is now 4.6 million tons, among which 22% comes from commercial fishery production and 78% from aquaculture production, which is the fastest growing food production system in the world. Atlantic salmon and rainbow trout are produced by marine and freshwater aquaculture mainly in Norway and Chile, where environmental impacts are intensively investigated. The biomass of Japanese chum salmon increased steadily from 1970 to 1996 because of the successful improvement of propagation systems. However, the return rate of homing adults has decreased sharply, mainly due to recent unpredictable climate change. New trials of Japanese salmon propagation systems are being carried out by using semi-closed recirculating aquaculture systems and orally administering docosahexaenoic acid.

Nitrification and denitrification in recirculating aquaculture systems: the processes and players

2021 ◽  
Author(s):  
Prasannan Geetha Preena ◽  
Vattiringal Jayadradhan Rejish Kumar ◽  
Isaac Sarojini Bright Singh
Keyword(s):  
Recirculating Aquaculture ◽  
Recirculating Aquaculture Systems ◽  
Nitrification And Denitrification

scholarly journals Anaerobic Mineralization of Recirculating Aquaculture Drum Screen Effluent for Use as a Naturally-Derived Nutrient Solution in Hydroponic Cropping Systems

Conservation ◽  
2021 ◽  
Vol 1 (3) ◽  
pp. 151-167
Author(s):  
Joseph Tetreault ◽  
Rachel Fogle ◽  
Todd Guerdat
Keyword(s):  
Nutrient Solution ◽  
Agricultural Waste ◽  
The United States ◽  
Anaerobic Treatment ◽  
Production Costs ◽  
Effluent Treatment ◽  
Limiting Factors ◽  
Fertilizer Treatment ◽  
Recirculating Aquaculture ◽  
Recirculating Aquaculture Systems

Operation and effluent treatment costs are limiting factors for the success of recirculating aquaculture systems (RAS) in meeting seafood demand in the United States. Adopting a capture-and-reuse waste management model similar to terrestrial agriculture farmers would allow RAS farmers to monetize effluent and offset production costs. The moisture content and nutrient profile of RAS effluent makes it a potential option for use as a hydroponic fertilizer. Treatment of RAS waste is needed to mineralize particulate-bound nutrients before becoming a viable hydroponic nutrient solution. Anaerobic treatment (AT), a method used by municipal and agricultural waste treatment facilities to reduce total solids, has been shown to successfully mineralize particulate-bound nutrients from RAS effluent. Continuously mixed anaerobic batch bioreactors were used to evaluate the degree to which AT may mineralize particulate-bound nutrients in solid RAS waste. Concentrations of twelve different macro- and micro-nutrients were analyzed in the waste before and after treatment. Effluent samples were analyzed to determine the fraction of each nutrient in the solid and aqueous forms. This study showed that AT is an effective method to mineralize particulate-bound nutrients in RAS effluent and the mineralization rate data may be used to design a pilot-scaled flow-through RAS effluent treatment system.

Assessment of aeration plug-flow devices used with recirculating aquaculture systems on the growth of tilapia Oreochromis niloticus

2020 ◽  
Vol 91 ◽  
pp. 102116
Author(s):  
Gengfeng Xiao ◽  
Xiangju Cheng ◽  
Jun Xie ◽  
Dantong Zhu
Keyword(s):  
Oreochromis Niloticus ◽  
Plug Flow ◽  
Recirculating Aquaculture ◽  
Recirculating Aquaculture Systems ◽  
Flow Devices

Microscreen effects on water quality in replicated recirculating aquaculture systems

2015 ◽  
Vol 65 ◽  
pp. 17-26 ◽  
Author(s):  
Paulo Fernandes ◽  
Lars-Flemming Pedersen ◽  
Per Bovbjerg Pedersen
Keyword(s):  
Water Quality ◽  
Recirculating Aquaculture ◽  
Recirculating Aquaculture Systems

The Water Quality Management for Recirculating Aquaculture System by Applying Nano Adsorption Technology

2021 ◽  
Vol 21 (7) ◽  
pp. 3975-3979
Author(s):  
Min-Jin Hwang ◽  
Jeongmin Cha ◽  
Eun-Sik Kim
Keyword(s):  
Water Quality ◽  
Water Quality Management ◽  
Reduction Rate ◽  
Fish Farming ◽  
Analytical Relationship ◽  
Pumice Stone ◽  
Recirculating Aquaculture ◽  
Recirculating Aquaculture Systems ◽  
Aquaculture Water

In a fish farm, the water quality is important to ensure fish growth and farm productivity. However, the study of the quality of water using in aquaculture has been ignored until now. Although there are several methods to treat water, nanomaterials have not yet been applied for indoor fish farming because it may difficult to supply a sufficient amount of water, and the operating parameters have not been developed for recirculating aquaculture systems. Nanotechnology can be applied to treat water, specifically through adsorption and filtration, to produce drinking water from surface water and to treat wastewater by processing a high volume of effluent. The adsorption and filtration of seawater has also progressed to allow for desalination of seawater, and this is recognized as a necessary tool for extended treatment protocols of various types of seawater. This study investigated the treatment of aquaculture water using nano-porous adsorbents (e.g., pumice stone) to control the contaminants in seawater in order to maintain the water quality required for aquaculture. The results are used to derive an analytical relationship between the ionic species in aquaculture water, and this provides empirical parameters for a batch reactor for aquaculture. The quality of the influent and effluent for aquaculture is compared using time-series analyses to evaluate the reduction rate of ionic components and thus suggest the optimum condition for fish farming using bioreactor processes.

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