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Journal articles on the topic 'Recirculating Aquaculture System'

Author: Grafiati

Published: 4 June 2021

Last updated: 27 April 2022

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1

LAZA, EVELINE ANDA, IOAN LADISLAU CABA, GHEORGHE STROESCU, ANIŞOARA PĂUN, CARMEN BĂLȚATU, A. ZAICA, and A. A. ZAICA. "STUDIES AND RESEARCH REGARDING THE UNITARY ENERGY CONSUMPTION OF A RECIRCULATING AQUACOL SYSTEM." "Annals of the University of Craiova - Agriculture Montanology Cadastre Series " 51, no. 2 (December 20, 2020): 332–36. http://dx.doi.org/10.52846/aamc.2021.02.40.

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This paper aims to highlight the consumption of electricity and caloric energy consumed by a recirculating aquaculture system for the growth of aquatic life. The energy needed to operate a recirculating aquaculture system for fish farming is divided into two categories, namely the electricity needed to operate various technological equipment, the main equipment in a recirculating aquaculture system that uses electricity being recirculation pumps, mechanical filters (some types), UV sterilization facilities and aeration systems. The second category of energy consumed is the caloric energy required for heating / cooling the water in the system and the hall.

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2

Ebeling, James M. "Engineering Aspects of Recirculating Aquaculture Systems." Marine Technology Society Journal 34, no. 1 (January 1, 2000): 68–78. http://dx.doi.org/10.4031/mtsj.34.1.8.

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Intensive recirculating aquaculture systems utilizing water recirculation and pure oxygen injection are examined in terms of the individual unit processes that are required to handle the wastes generated by fish at stocking densities as high as 120‐150 kg/m3. These unit processes include solid waste removal, nitrification of ammonia and nitrite, aeration or oxygenation, carbon dioxide removal, and control and monitoring systems. Overall system integration is reviewed and an example of a research/commercial intensive recirculating system is presented.

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3

Seo, Kuen Hack, Byong Jin Kim, and Jae Yoon Jo. "Start-up Operation of Recirculating Aquaculture System." Korean Journal of Fisheries and Aquatic Sciences 35, no. 1 (January 1, 2002): 21–26. http://dx.doi.org/10.5657/kfas.2002.35.1.021.

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4

Khater, El-Sayed G., Samir A. Ali, Adel H. Bahnasawy, and Montasser A. Awad. "SOLIDS REMOVAL IN A RECIRCULATING AQUACULTURE SYSTEM." Misr Journal of Agricultural Engineering 28, no. 4 (October 1, 2011): 1178–96. http://dx.doi.org/10.21608/mjae.2011.102635.

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5

Laza, Evelin-Anda, Ioan Ladislau Caba, Mihai Olan, and Valentin Vladut. "Biological water treatment in a recirculating aquaculture system." E3S Web of Conferences 286 (2021): 03013. http://dx.doi.org/10.1051/e3sconf/202128603013.

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Biological water filtration is a process by which toxic compounds are removed from water using organisms. A well-sized biological filter is extremely important as part of a recirculating aquaculture system for fish farming. Biological water filtration equipment in aquaculture recycling systems is a technological set that restores the vital qualities of wastewater from fish ponds, thus allowing its reuse

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6

Kucuk, Haydar, Adnan Midilli, Atilla Özdemir, Eyüp Çakmak, and Ibrahim Dincer. "Exergetic performance analysis of a recirculating aquaculture system." Energy Conversion and Management 51, no. 5 (May 2010): 1033–43. http://dx.doi.org/10.1016/j.enconman.2009.12.007.

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7

Gonçalves, Alex Augusto, and Graham A. Gagnon. "Ozone Application in Recirculating Aquaculture System: An Overview." Ozone: Science & Engineering 33, no. 5 (September 2011): 345–67. http://dx.doi.org/10.1080/01919512.2011.604595.

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8

Tanveer, Mohammad, Sanjib Moulick, and C. K. Mukherjee. "Mathematical model for goldfish recirculating aquaculture system (GRAS)." Aquacultural Engineering 90 (August 2020): 102092. http://dx.doi.org/10.1016/j.aquaeng.2020.102092.

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9

Farghally, Hanaa M., Doaa M. Atia, Hanaa T. El-madany, and Faten H. Fahmy. "Control methodologies based on geothermal recirculating aquaculture system." Energy 78 (December 2014): 826–33. http://dx.doi.org/10.1016/j.energy.2014.10.077.

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10

Liu, Yu Qing, Yan Xiang Wu, and Li Ling Cao. "The Design of Automatic Control System for Industrialized Recirculating Aquaculture." Advanced Materials Research 1046 (October 2014): 246–49. http://dx.doi.org/10.4028/www.scientific.net/amr.1046.246.

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Based on the control process and requirements of the industrialized recirculating aquaculture system (IRAS), we designed an aquaculture automatic control system. The entire system is divided into seven modules including water circulation and filtration, bioreactor self-loop, water quality monitoring, Emergency treatment, thermostatic temperature control, PID operation, and failure alarm. It is used to control the water circulation, and automatically detect and adjust the environmental factors of the pond for best farming environment. The lower computer adopts Siemens S7-200 PLC. MCGS configuration software is applied in the upper computer for the dynamic display, parameter setting, fault alarm and other functions of the whole recirculating aquaculture process. The lab test showed the advantages of the system including the high degree of automation of the system, user-friendly, easy to maintain and reliable operation, with a good promotional and application value.

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11

Yang, Dazuo, Chenchen Cao, Gang Wang, Yibing Zhou, and Zhilong Xiu. "The Growth Study of Perinereis aibuhitensis in Airlift Recirculating Aquaculture System." Open Biotechnology Journal 9, no. 1 (September 14, 2015): 143–49. http://dx.doi.org/10.2174/1874070701509010143.

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For sustainable development of aquaculture industry, it is important to apply biological method and biotechnology to treat the waste of aquaculture. In this paper, an airlift recirculating aquaculture system was designed and polychaete worms were cultured in it. According to the different food level experiments, the growth of Perinereis aibuhitensis was tested in each system with different feeding ratios according to food/total worms’ weight percentage. It was marked as M1, M2, M3, M4 and M5 respectively. The water parameters were also tested. The results showed that in the M3 groups, the production of P.aibuhitensis was the highest being 2.36 g/m2, while other groups exhibited negative production. Fed on the residual feeds and feces of flounder fish, the mean weight of worms increased to a maximum in M4, which was 1.570g and in M3, it was 0.986g in 40 days. The results provided a novel method to biologically utilize the waste of aquaculture.

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12

KIKUCHI, KOTARO, NAKAHIRO IWATA, and SHIGENOBU TAKEDA. "Production of Japanese flounder in closed recirculating aquaculture system." Fisheries science 68, sup1 (2002): 851–54. http://dx.doi.org/10.2331/fishsci.68.sup1_851.

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13

Jr., Gerald Don Scurlock,, S. Bradford Cook, and Carrie Ann Scurlock. "An Inexpensive Recirculating Aquaculture System with Multiple Use Capabilities." American Biology Teacher 61, no. 2 (February 1, 1999): 126–27. http://dx.doi.org/10.2307/4450632.

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14

Barak, Yoram, Eddie Cytryn, Iliya Gelfand, Michael Krom, and Jaap van Rijn. "Phosphorus removal in a marine prototype, recirculating aquaculture system." Aquaculture 220, no. 1-4 (April 2003): 313–26. http://dx.doi.org/10.1016/s0044-8486(02)00342-3.

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15

Midilli, Adnan, Haydar Kucuk, and Ibrahim Dincer. "Environmental and sustainability aspects of a recirculating aquaculture system." Environmental Progress & Sustainable Energy 31, no. 4 (July 25, 2011): 604–11. http://dx.doi.org/10.1002/ep.10580.

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16

Pedersen, Lars-Flemming, and Per B. Pedersen. "Hydrogen peroxide application to a commercial recirculating aquaculture system." Aquacultural Engineering 46 (January 2012): 40–46. http://dx.doi.org/10.1016/j.aquaeng.2011.11.001.

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17

Farghally, Hanaa M., Doaa M. Atia, Hanaa T. El-madany, and Faten H. Fahmy. "Fuzzy Logic Controller based on geothermal recirculating aquaculture system." Egyptian Journal of Aquatic Research 40, no. 2 (2014): 103–9. http://dx.doi.org/10.1016/j.ejar.2014.07.004.

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18

Menanteau-Ledouble, Simon, Rui A. Gonçalves, and Mansour El-Matbouli. "Feed Supplementation with a Commercially Available Probiotic Solution Does Not Alter the Composition of the Microbiome in the Biofilters of Recirculating Aquaculture Systems." Pathogens 9, no. 10 (October 10, 2020): 830. http://dx.doi.org/10.3390/pathogens9100830.

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Recirculating aquaculture relies on the treatment of ammonia compounds from the water by a bacterial flora growing inside biofilters. Another increasingly common practice in aquaculture is the supplementation of feed with live probiotic bacteria to boost the immune system of the farmed animals and hinder the implantation of pathogenic bacteria. In the present study, we investigated the bacterial flora within the biofilters of recirculating farming units in which African catfish (Clarias gariepinus) were being farmed. Our results suggested that these two farming systems could be compatible as feeding of the probiotic feed had no detectable effect on the composition of the microbiome within the biofilters and none of the bacteria from the feed could be detected in the biofilters. These findings suggest that supplementation of the fish feed with probiotic supplements did not interfere with the microbiome residing inside the biofilter and that it is a safe practice in recirculating aquaculture systems.

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19

Webb, James B., Emily R. Hart, Craig Hollingsworth, and Andy J. Danylchuk. "A Small-Scale Recirculating Aquaculture System for Global Aquaculture Education and Industry Development." Journal of Applied Aquaculture 27, no. 4 (October 2, 2015): 331–41. http://dx.doi.org/10.1080/10454438.2015.1064846.

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20

Halachmi, Ilan. "Systems engineering for ornamental fish production in a recirculating aquaculture system." Aquaculture 259, no. 1-4 (September 2006): 300–314. http://dx.doi.org/10.1016/j.aquaculture.2006.05.046.

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21

Hwang, Min-Jin, Jeongmin Cha, and Eun-Sik Kim. "The Water Quality Management for Recirculating Aquaculture System by Applying Nano Adsorption Technology." Journal of Nanoscience and Nanotechnology 21, no. 7 (July 1, 2021): 3975–79. http://dx.doi.org/10.1166/jnn.2021.19202.

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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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22

Marin, P., A. Donoso-Bravo, J. L. Campos, G. Ruiz-Filippi, and R. Chamy. "Performance of an in-situ rotating biological contactor in a recirculating aquaculture system." Water Science and Technology 64, no. 11 (December 1, 2011): 2217–22. http://dx.doi.org/10.2166/wst.2011.737.

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The start-up and activation of a nitrifying rotating biological contactor (RBC) and its performance inside a culture tank of rainbow trout were studied. First, in a lab-scale operation, the system was fed with a synthetic medium containing a high ammonia concentration (567 mg NH4+-N L−1) and operated at a high hydraulic retention time (HRT) (6.5 days) to minimize the wash-out of the biomass and promote the biofilm formation. Then, both inlet ammonia concentration and HRT were decreased in order to obtain operational conditions similar to those of the culture tank. During this period, the RBC was able to treat an ammonia loading rate (ALR) of 0.64 g N-NH4+ L−1 d−1 with a removal efficiency within 70–100%. Pilot-scale experiments were carried out in culture tanks of rainbow trout. The operation of a recirculating system with the RBC unit was compared with a recirculating system without biological treatment and with a flow-through system. The use of this in-situ nitrifying unit allowed working at a recirculation ratio of 90% without negative effects on either growth or the condition factor of fishes. Up to 70% of ammonia generated was removed and a removal rate of 1.41 g NH4+-N m−2 d−1 was reached.

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23

Almeida, Pedro, Laurent Dewasme, and Alain Vande Wouwer. "Denitrification Control in a Recirculating Aquaculture System—A Simulation Study." Processes 8, no. 10 (October 17, 2020): 1306. http://dx.doi.org/10.3390/pr8101306.

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The recirculating aquaculture system (RAS) is a land-based water treatment technology, which allows for farming aquatic organisms, such as fish, by reusing the water in the production (often less than 5%). This technology is based on the use of filters, either mechanical or biological, and can, in principle, be used for any species grown in aquaculture. Due to the low recirculation rate, ammonia accumulates in the system and must be converted into nitrate using nitrification reactors. Although less toxic for fish, nitrate can also be further reduced into nitrogen gas by the use of denitrification biofilters which may create several issues, such as incomplete denitrification, resulting in toxic substances, such as nitrite and nitric oxide, or a waste of carbon source in excess. Control of the added quantity of carbon source in the denitrification biofilter is then mandatory to keep nitrate/nitrite concentrations under toxic levels for fish and in accordance with local effluent regulations, and to reduce costs related to wasted organic carbon sources. This study therefore investigates the application of different control methodologies to a denitrification reactor in a RAS. To this end, a numerical simulator is built to predict the RAS behavior and to allow for the comparison of different control approaches, in the presence of changes in the operating conditions, such as fish density and biofilter removal efficiency. First, a classical proportional-integral-derivative (PID) controller was designed, based on an SIMC tuning method depending on the amount of ammonia excreted by fish. Then, linearizing and cascade controllers were considered as possible alternatives.

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24

SUMOHARJO, SUMOHARJO, MOHAMMAD MA’RUF, and IRWAN BUDIARTO. "Biomass production of Azolla microphylla as biofilter in a recirculating aquaculture system." Asian Journal of Agriculture 2, no. 01 (June 1, 2018): 14–19. http://dx.doi.org/10.13057/asianjagric/g020103.

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Sumoharjo, Ma’ruf M, Budiarto I. 2018.Biomass production of Azolla microphylla as biofilter in a recirculating aquaculture system. Asian J Agric 2: 14-19. This study utilized macrophyte (Azolla microphylla Kaulf.) as biofilter and perhaps that biomass produced in aquaculture system can be potential for alternative feed. This experiment such a first step of that vision and was aimed to determine the Azolla microphylla growth rate and its efficiency in removing ammonia from a simple recirculating aquaculture system. The experimental units were set up in three different water flow, i.e. 3 lpm, 5 lpm, and 7 lpm onto the three different geometrically baseboard of Tilapia (Oreochromis niloticus) growing tanks (prism, rectangular and limas).The result showed that water flow did not give significant effect(P < 0.10) on the growth rate of Azolla.The lower water flow (3 lpm) resulted in the highest amonia biofiltration efficiency which can remove ammonia up to 32.2±3.0% of the total NH3-N and NH4+-N (TAN).

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25

Chang, Bea-Ven, Chien-Sen Liao, Yi-Tang Chang, Wei-Liang Chao, Shinn-Lih Yeh, Dong-Lin Kuo, and Chu-Wen Yang. "Investigation of a Farm-scale Multitrophic Recirculating Aquaculture System with the Addition of Rhodovulum sulfidophilum for Milkfish (Chanos chanos) Coastal Aquaculture." Sustainability 11, no. 7 (March 28, 2019): 1880. http://dx.doi.org/10.3390/su11071880.

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Globally, coastal aquaculture is growing due to the large demand for marine products. Specific impacts caused by coastal aquaculture on the environment include the discharge of culture farm effluents, stress on ground water (the absence of recycling), nutrient pollution, and diseases of cultured animals. Three methods, integrated multitrophic aquaculture (IMTA), recirculating aquaculture system (RAS), and beneficial bacteria for aquaculture, have been developed to solve these problems. In this study, the advantages of IMTA and RAS were integrated to develop a novel multitrophic recirculating aquaculture system (MRAS) to adapt to the farm-scale culturing of milkfish (Chanos chanos). The photosynthetic bacteria Rhodovulum sulfidophilum was added to enhance the performance of the farm-scale milkfish MRAS. This setting could promote growth of beneficial bacteria, such as the nitrogen cycle-associated microbial community and the anoxygenic phototrophic Acidobacteria community. The ammonia level was reduced, and the total phosphorous level was stable in the water recycled in the MRAS. The cyanobacteria, algae, Vibrio, Escherichia, and other potential pathogenic bacteria communities were inhibited in the MRAS. This study provides an effective design of a water recycling aquaculture system. Milkfish, Asian tiger shrimp (Penaeus monodon), Asian hard clam (Meretrix lusoria), and seaweed (Gracilaria sp.) can be cultured and simultaneously produced in the system.

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26

Fauzi, Ridwan Latif, Agung Putra Pamungkas, and Didik Purwadi. "White Shrimp Litopenaeus vannamei Based Agroindustry Through Recirculating Aquaculture System to Increase Competitiveness." E3S Web of Conferences 147 (2020): 01002. http://dx.doi.org/10.1051/e3sconf/202014701002.

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White shrimp is one of potential aquaculture products and economically valuable. Because of the business prospect, a lot of fish farmers take place the agroindustry as well as providing white shrimp cultivation. Recirculation Aquaculture System (RAS) is a method for cultivating white shrimp in order to increase the production of shrimp in limited aquaculture environment. The purpose of this study is to discuss how to increase competitiveness of agroindustry based white shrimp culture. In order to increase white shrimp culture competitiveness there are two ways should be provided: introduction RAS cultivation technology, and RAS cultivation management. This study obtained the result that indicates RAS cultivation technology can be applied for white shrimp fish farmers with optimum density is 400 shrimp/m3, 1.13 of Feed Conversion Ratio (FCR) and 70% of Survival Rate (SR). Industrial management should be considered to support aquaculture such as product, raw material, cultivation process, marketing, and financial.

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27

Kolářová, Jitka, Jiří Křišťan, Oleksandr Malinovskyi, Josef Velíšek, Alžběta Stará, Tomáš Policar, and Samad Rahimnejad. "Effects of ozonation on water quality and pikeperch (Sander lucioperca) performance in a recirculating aquaculture system." Czech Journal of Animal Science 66, No. 9 (September 1, 2021): 381–90. http://dx.doi.org/10.17221/54/2021-cjas.

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The aim of this study was to examine the effects of ozonation on the water quality, and growth, blood biochemistry, antioxidant capacity and survival of pikeperch (Sander lucioperca) reared in a recirculation aquaculture system for 30 weeks. A group without ozone treatment was used as a control. The ozone application led to a significant reduction of the water chemical oxygen demand, biological oxygen demand and unsuspended solids concentration. The results revealed that an ozone treatment as a water treatment method has a positive influence on the intensive culture of pikeperch ensuring a higher survival rate (77%) compared to the non-treated control group (67.2%). Moreover, the ozonation prevented fin damage to a large extent and reduced the prevalence of an Ichthyophthirius multifiliis infection. Furthermore, the ozone application led to a reduction in the thiobarbituric acid reactive substance level and enhanced the superoxide dismutase activity in the fish gills. However, the effect of ozonation was null on the plasma biochemical parameters. Overall, these findings suggest that an ozone treatment, using adequate technological equipment to destroy the residual ozone, improves the water quality and protects pikeperch against any possible infection and fin damage in a recirculation aquaculture system.

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PULLELA, S., C. F. FERNANDES, G. J. FLICK, G. S. LIBEY, S. A. SMITH, and C. W. COALE. "Indicative and Pathogenic Microbiological Quality of Aquacultured Finfish Grown in Different Production Systems." Journal of Food Protection 61, no. 2 (February 1, 1998): 205–10. http://dx.doi.org/10.4315/0362-028x-61.2.205.

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The nature and number of indicator and pathogenic microbes in fish reared using recirculating and nonrecirculating water systems were compared. For each system, 20 samples of rainbow trout (Oncorhynchus mykiss), tilapia (Oreochromis spp.), hybrid striped bass (Morone saxatilis × M. chrysops), and pacu (Piaractus mesopotamicus) were randomly selected and gutted, and microbial analyses were performed using AOAC procedures. Five fish were subsampled and analyzed for indicative microbial quality with 3M Petrifilm™. The general microbial quality differed significantly (P < 0.05) among the production systems, except for total coliform counts. Rainbow trout cultured in recirculating and nonrecirculating water systems had lower counts for aerobes (2.00 to 3.11 log CFU/g) (p < 0.05), than other species, whereas trout reared in a recirculating water system had significantly lower psychrotrophic numbers (0.86 to 1.85 log CFU/g). Pacu had the highest fecal coliform counts (2.74 to 3.70 log CFU/g), whereas hybrid striped bass and rainbow trout grown in nonrecirculating systems had lower fecal coliform counts (0.00 to 1.39 log CFU/g). Rainbow trout grown in a nonrecirculating system had significantly higher Escherichia coli counts (0.00 to 2.11 log CFU/g). The human bacterial pathogens Listeria monocytogenes, Yersinia enterocolitica, Escherichia coli O157:H7 and Salmonella spp. were not isolated from the fish sampled. However, Clostridium botulinum was isolated from all the aquacultured fish sampled except pacu and tilapia grown in a recirculating aquaculture system. However, the counts were very low, ranging from 0.0 to 2.3 MPN/g.

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Wu, Yan Xiang, Yong Mei Hu, Yu Qing Liu, and Min Jie Xue. "The Design of Recirculating Aquaculture Temperature Control System Based on PLC." Applied Mechanics and Materials 40-41 (November 2010): 96–102. http://dx.doi.org/10.4028/www.scientific.net/amm.40-41.96.

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In order to improve the aquaculture monitoring system in China, this paper designs a system adopting the SIMATIC S7-200 CPU226 and PID control algorithm to make real-time monitoring and controlling for the water level and temperature of closed circulating aquaculture system, thus it can realize constant control of water level and temperature in the culture pond. The overall control scheme and principle of the system are introduced in detail, followed by the structure design of the system software and hardware. The designed system can efficiently achieve system logic control, safety control, fault display and fault treatment.

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30

Кravchenko, І., А. Кucheruk, and А. Mruk. "Weight and linear parameters of juveniles of coregonids (Coregoninae) grown in conditions of recirculated aquaculture systems." Ribogospodarsʹka nauka Ukraïni., no. 4(54) (December 28, 2020): 68–77. http://dx.doi.org/10.15407/fsu2020.04.068.

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Purpose. Determining the growth dynamics of whitefish juveniles in conditions of recirculated aquaculture systems to current needs of industrial aquaculture of Ukraine. Methodology. The work was performed in accordance with generally accepted guidelines used for coregonid rearing in industrial aquaculture. The study was conducted in a specialized farm for whitefish breeding - "Lavaretus" LLC. Findings. Weight and linear growth during the period of cultivation in controlled conditions of whitefish young-of-the-year were characterized by dynamics, which were generally close to that typical for coregonids. The study included four coregonid species with different feeding types. Planktivorous (peled), bentivorous (whitefish), polyphagous species that is able to feed on various food organisms (muksun) and peled/broad whitefish hybrid. Feeding regime: during the transition to the mixed feeding was carried out 48 times a day (14 hours with an interval of 15 and 30 minutes) manually; further, according to an increase in fish weight was reduced to 4 times a day using automatic feeders. The average weight and length of young-of-the-year grown in a recirculating aquaculture system was: - peled – 5.6 ± 0.4, muksun – 10.1 ± 0.6.9, Baltic whitefish – 8.6 ± 1.2 g, peled/broad whitefish hybrid – 7.9 ± 0.2 g. The coefficient of variability of weights were: peled – 40.4%, muksun – 32.2%, Baltic whitefish – 21.1%, peled/broad whitefish hybrid – 41.9%. Originality. New data on piscicultural-biological parameters and dynamics of growth of juveniles of various coregonids or cultivation in conditions of a recirculating aquaculture system were obtained. Practical value. The development of whitefish farming technology in RAS conditions, which, in contrast to salmon cultivation, is only at the initial stage of implementation, so obtained data will be the basis for the development of whitefish culture in Ukraine. Key words: recirculating aquaculture system, young-of-the-year, coregonids, length-weight parameters, rearing.

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Seo, Kuen Hack, Byong Jin Kim, and Jae Yoon Jo. "Culture of Nile Tilapia (Oreochromis niloticus) in Recirculating Aquaculture System." Korean Journal of Fisheries and Aquatic Sciences 35, no. 1 (January 1, 2002): 27–34. http://dx.doi.org/10.5657/kfas.2002.35.1.027.

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32

PARK, Jong Ho, Won Ho LEE, Ik Jun YEON, and Kyu Seok CHO. "Effect of Temperature on Nitrification in a Recirculating Aquaculture System." Korean Journal of Fisheries and Aquatic Sciences 37, no. 1 (February 1, 2004): 13–17. http://dx.doi.org/10.5657/kfas.2004.37.1.013.

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33

Leonard, N., J. P. Blancheton, and J. P. Guiraud. "Populations of heterotrophic bacteria in an experimental recirculating aquaculture system." Aquacultural Engineering 22, no. 1-2 (May 2000): 109–20. http://dx.doi.org/10.1016/s0144-8609(00)00035-2.

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34

Barak, Yoram, and Jaap van Rijn. "Biological phosphate removal in a prototype recirculating aquaculture treatment system." Aquacultural Engineering 22, no. 1-2 (May 2000): 121–36. http://dx.doi.org/10.1016/s0144-8609(00)00036-4.

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35

McMillan, J. D., F. W. Wheaton, J. N. Hochheimer, and J. Soares. "Pumping effect on particle sizes in a recirculating aquaculture system." Aquacultural Engineering 27, no. 1 (January 2003): 53–59. http://dx.doi.org/10.1016/s0144-8609(02)00038-9.

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., Supono. "CIRCULAR TANK DESIGN AND FUNCTION IN RECIRCULATING AQUACULTURE SYSTEM (RAS)." OSEANA 42, no. 2 (November 19, 2019): 59–69. http://dx.doi.org/10.14203/oseana.2017.vol.42no.2.47.

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DISAIN DAN FUNGSI TANGKI BULAT DALAM SISTEM BUDIDAYA TERESIRKULASI. Kegiatan budidaya telah berkembang pesat dalam hal teknologi dan teknik budidaya dalam rangka meningkatkan hasil produksi. Salah satu teknologi penting adalah desain tanki yang digunakan dalam kegiatan budidaya terutama pada sistem budidaya resirkulasi. Tanki bulat memiliki beberapa keuntungan dan spesifikasi yang lebih luas dibandingkan dengan jenis tanki yang lain. Dari segi desain dan fungsinya, tanki bulat dapat di gunakan untuk budidaya berbagai jenis ikan. Tulisan ini bertujuan untuk menjelaskan desain dan fungsi dari tanki bulat terutama bagaimana memilih ukuran tanki yang sesuai dengan kebutuhan, bagaimana menginstalasi saluran air masuk dan keluar, bagaimana proses mekanisme self cleaning (mekanisme pembersihan tank secara otomatis) dan kekurangannya dalam kegiatan budidaya.

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Liu, Liang-Zi, Ying Liu, Zhu Chen, Hong-Can Liu, Yu-Guang Zhou, and Zhi-Pei Liu. "Ornithinimicrobium tianjinense sp. nov., isolated from a recirculating aquaculture system." International Journal of Systematic and Evolutionary Microbiology 63, Pt_12 (December 1, 2013): 4489–94. http://dx.doi.org/10.1099/ijs.0.052514-0.

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A Gram-positive, strictly aerobic and heterotrophic, non-spore-forming actinobacterium (strain B2T) isolated from a recirculating aquaculture system was studied for its taxonomic position. Strain B2T formed a rudimentary substrate-mycelium that fragmented into short rod-shaped to coccoid cells (0.5 µm×0.5–2.2 µm or 0.5–1.0 µm in diameter). Colonies were yellow, smooth, circular and 1.5–2.0 mm in diameter after incubation on TSA for 3 days at 30 °C. Strain B2T grew at 20–40 °C (optimal, 30 °C) and pH 5.5–9.5 (optimal, 6.5–7.0) and in the presence of 0–9 % (w/v) NaCl (optimal, 1 %). The predominant menaquinone of strain B2T was MK-8(H4). The cell-wall peptidoglycan of strain B2T contained the amino acids ornithine, glutamic acid, alanine, glycine and aspartic acid. The major polar lipids were phosphatidylglycerol and diphosphatidylglycerol. The major fatty acids were iso-C15 : 0, iso-C16 : 0 and summed feature 9. Its DNA G+C content was 68.3 mol% (T m). Analysis of 16S rRNA gene sequences indicated that strain B2T was related phylogenetically to members of the genus Ornithinimicrobium with highest similarity (96.6 %) to Ornithinimicrobium kibberense DSM 17687T, followed by Ornithinimicrobium humiphilum DSM 12362T (96.3 %), Ornithinimicrobium pekingense LW6T (96.2 %) and Ornithinimicrobium murale 01-Gi-040T (94.8 %). On basis of phenotypic, chemotaxonomic and phylogenetic data, it was concluded that strain B2T represents a novel species of the genus Ornithinimicrobium , for which the name Ornithinimicrobium tianjinense sp. nov. is proposed. The type strain is B2T ( = CGMCC 1.12160T = JCM 18464T).

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Chen, Xuechu, Guoquan Zeng, Qilang Xie, Yi Chen, Yingying Huang, Jianbiao Qiu, Jinbo Cai, Chen Chen, and Jianwu Tang. "A novel combined recirculating treatment system for intensive marine aquaculture." Aquaculture Research 48, no. 9 (April 7, 2017): 5062–71. http://dx.doi.org/10.1111/are.13323.

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Mohammad, Tanveer, Sanjib Moulick, and Chanchal K. Mukherjee. "Economic feasibility of goldfish (Carassius auratus Linn.) recirculating aquaculture system." Aquaculture Research 49, no. 9 (June 25, 2018): 2945–53. http://dx.doi.org/10.1111/are.13750.

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Liu, Huang, Xuan Che, and Yulei Zhang. "Performance of sequencing microbead biofilters in a recirculating aquaculture system." Aquacultural Engineering 52 (January 2013): 80–86. http://dx.doi.org/10.1016/j.aquaeng.2012.10.002.

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Garba, A. A. "Economic realities and management systems in aquaculture production." Journal of Aquatic Sciences 36, no. 1 (August 3, 2021): 107–17. http://dx.doi.org/10.4314/jas.v36i1.10.

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This study reviewed and unveiled the economic sizes and managing systems in aquaculture production. The focus had been on developing new technologies and management systems in aquaculture production that can produce fish food on an economically competitive basis while still maintaining environmental health. The technique of recirculating aquaculture system (RAS) had been discussed. Economic issues such as: adequately available quality water, economic sizes, management issues, financial capabilities, various investment options, species selection, cost of production, capitalization cost of unit process, cost of pumping and bio-filtration, gas stripping and pH control, solid wastes removal, economically competitive scale, labor requirements as wellas predicted cost of production. The economic comparison of broilers and catfish production were evaluated. Also, challenges against the effective aquaculture technological application and the prospects to economic realities and management systems in aquaculture production were also highlighted. It could be concluded that economic realities and management of RAS is the soft and live wire in aquacultural development especially in developing countries like Nigeria. It is therefore, recommended that fish farmers need to engage and be trained on the use of this new fish production technology for increase production and economy benefits.

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Sunaryani, Astried, Taofik Jasalesmana, and Livia Rossila Tanjung. "EVALUASI KUALITAS AIR PADA SISTEM RESIRKULASI BUDIDAYA IKAN GURAMI, Osphronemus goramy MENGGUNAKAN PEMODELAN DINAMIKA SISTEM." Jurnal Riset Akuakultur 16, no. 3 (January 31, 2022): 155. http://dx.doi.org/10.15578/jra.16.3.2021.155-165.

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Perkembangan teknologi dalam pembudidayaan ikan menggunakan sistem resirkulasi sangat cepat dalam beberapa tahun terakhir karena bersifat ramah lingkungan dan memberikan banyak keuntungan yaitu mampu memproduksi ikan dengan kepadatan tinggi. Namun, penurunan kualitas air akibat limbah dari feses dan sisa pakan dapat membahayakan sintasan ikan. Penelitian ini dilakukan untuk mengevaluasi kualitas air, khususnya konsentrasi amonia pada sistem resirkulasi budidaya ikan gurami, Osphronemus goramy melalui pemodelan dinamika sistem. Simulasi pemodelan dilakukan dengan software Vensim PLE menggunakan data sekunder. Selama 30 hari periode simulasi, konsentrasi amonia dalam kolam ikan meningkat sampai dengan hari ke-15, kemudian turun bertahap hingga hari ke-30. Konsentrasi amonia yang aman diperoleh dari laju resirkulasi 50 dan75 L/jam dengan sintasan ikan gurami 95%. Persentase eror sebesar 8,6% dibandingkan dengan data hasil penelitian sebelumnya menunjukkan bahwa model dinamika sistem ini valid dan dapat digunakan untuk pemantauan kualitas air, khususnya amonia, dalam budidaya ikan gurami yang menggunakan sistem resirkulasi.The development of recirculating aquaculture systems (RAS) has been rapidly increased in recent years due to environmental and economic advantages, i.e., the system can support farmed fish at high density. However, declining water quality in RAS could occur as a result of the accumulation and decomposition of fecal and uneaten feed materials that can be harmful to fish. This study was conducted to evaluate water quality, particularly the concentration of ammonia in the recirculation system of gouramy, Osphronemus goramy aquaculture through a system dynamics model. The model simulation was performed via Vensim PLE software using datasets from secondary sources. During the 30-days of simulation period, the ammonia concentration in the fish pond increased until day 15, then decreased gradually until day 30. Safe ammonia concentrations were obtained from recirculation rates of 50 and 75 L h-1 with gouramy survival rate of 95%. The percentage error of 8.6% compared to the previous experimental data shows that the prediction of the developed system dynamics model is valid and acceptable. The model can therefore be used for water quality monitoring, particularly for ammonia concentration in gouramy farming using recirculating aquaculture systems.

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Bambaranda, B. V. A. S. Manori, Takuji W. Tsusaka, Anong Chirapart, Krishna R. Salin, and Nophea Sasaki. "Capacity of Caulerpa lentillifera in the Removal of Fish Culture Effluent in a Recirculating Aquaculture System." Processes 7, no. 7 (July 10, 2019): 440. http://dx.doi.org/10.3390/pr7070440.

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Aquaculture is one of the fastest growing food producing industries in the world. Aquaculture effluent contains high concentrations of inorganic nutrients. Reduction of these inorganic nutrients in aquaculture effluent is crucial for fulfilling the effluent standards or reuse of aquaculture effluent. This study investigated the effective use of green macroalga Caulerpa lentillifera as a bioremediatory species for nutrient removal from aquaculture effluent by conducting an on-station experiment and measurements. The effluent of a fish culture unit was circulated through a macroalgal culture unit every four days for a total of 60 days, allowing 15 circulations. Concentrations of inorganic nutrients (NO2−-N, NO3−-N, NH3-N, and PO43−) were measured in the integrated system consisting of a fish unit, settling unit, macroalgal unit and extra tank for water circulation in triplicates. Multiple linear regression analysis revealed that the application of the bioremediation system led to a significant reduction in nutrient concentrations within one day, and slightly further in the following two days. On average over the 15 circulations, the first one day of application decreased the concentrations of NO2−-N, NO3−-N, NH3-N, and PO43− by 0.247 mg/L, 81.6 mg/L, 0.682 mg/L, and 0.352 mg/L, respectively. Furthermore, the C:N ratio of macroalgae decreased during the 60-day application period, providing evidence of the nutrient uptake by macroalgae. Based on the European Union (EU) standard and quality criteria of France and the Joint FAO/WHO Expert Committee (JFWEC), the macroalgae grown in the integrated system were at the safe level for human consumption in terms of contents of Cd, Pb, and As. The results of our study imply that recirculating aquaculture systems utilizing C. lentillifera for biofiltration have the potential for effective treatment of aquaculture effluent integrating fish and macroalgae production.

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Liu, Xing-Guo, Jie Wang, Zong-Fan Wu, Guo-Feng Cheng, and Zhao-Jun Gu. "Anaerobic Ammonium Oxidation Bacteria in a Freshwater Recirculating Pond Aquaculture System." International Journal of Environmental Research and Public Health 18, no. 9 (May 6, 2021): 4941. http://dx.doi.org/10.3390/ijerph18094941.

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Anaerobic ammonium oxidation (anammox) is a key biochemical process to reduce nitrogen pollution in aquaculture, especially in water recirculating pond aquaculture system (RPAS). We used 16S RNA and quantified PCR to study the distribution and environmental impacts of anammox bacteria in RPAS. The results show that the anammox bacterial community distributions and diversities that are apparently unit-specific and seasonal have significant (p < 0.05) difference variation in the RPAS. Most of the anaerobic ammonium oxidation bacteria sequences (77.72%) retrieved from the RPAS belong to the Brocadia cluster. The abundance of anammox bacterial in the RPAS ranged from 3.33 × 101 to 41.84 × 101 copies per ng of DNA. The environmental parameter of temperature and nitrogen composition in water could have impacted the anammox bacterial abundance. This study provides more information on our understanding of the anammox bacteria in the RPAS, and provides an important basis for RPAS improvement and regulation.

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Pueyo, Catherine Dr. "Biochar from Corn Waste as Biofilter in a Recirculating Aquaculture Systems." International Journal for Research in Applied Science and Engineering Technology 10, no. 2 (February 28, 2022): 166–70. http://dx.doi.org/10.22214/ijraset.2022.40180.

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Abstract: The use of biofilter with the application of biochar technology for the improvement of water in a recirculating aquaculture system (RAS) provides a lot of advantages in aquaculture production. The research aimed to devise a biofilter system for the enhancement of TAN and un-ionized ammonia levels in a RAS using biochar from corn cobs for Nile tilapia Oreochromis niloticus production. It has five main parts: fish tank, biochar filtration tank, sediment filter, sludge filter and pump. The fish tank used is a 1 m 3 plastic cubical tank. The biochar filtration tank with a height of 85 cm and a diameter of 30 cm. The sludge filter has a height of 52 cm with a diameter of 13 cm. An electric water pump was used to recirculate the water. The system was fabricated and were able to effectively enhance the level of total ammonia nitrogen (TAN) at a rate of 0.56 ppm per hour for every 1kg biochar and 0.72 ppm per hour for the reduction of un-ionized ammonia. The devised biofilter proved to reduce the level of TAN by 9.45 ppm and un-ionized ammonia levels by 2.18 ppm in 6 hours and 30 minutes using corn cob biochar. Keywords: Biochar, Biofilter, Recirculating Aquaculture Systems (RAS), Total Ammonia Nitrogen (TAN), Un-ionized ammonia

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Shumeyko, Dmitry, Nikita Tsimbal, Aleksey Abramchuk, Georgy Moskul, and Aleksandr Taranik. "Biotechnology of Australian red-claw crayfish (Cherax quadricarinatus) juvenile ongrowing in recirculating aquaculture system." E3S Web of Conferences 175 (2020): 02005. http://dx.doi.org/10.1051/e3sconf/202017502005.

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As a result of the work done, the biotechnology of growing Australian red claw crayfish (Cherax quadricarinatus) juvenile in recirculating aquaculture system facilities was developed. The research work was carried out in the laboratory of advanced technologies in aquaculture on the basis of the business incubator the Federal State-Funded Educational Institution of Higher Education “Kuban State University”. The composition of the material base necessary for the implementation of biotechnology is determined, growth rates are determined, an optimal diet is formed and optimal planting densities are determined. For the working process two recirculating aquaculture system units were used. As food we used: minced fish, sturgeon food, artemia nauplii, oatmeal, frozen bloodworm, dried gammarus. During 80 days, decades-long survival varied from 83.6 to 91.8%. The average weight of individuals had changed from 0.03 to 5.10 g. The coefficient of variation of this feature was in the permissible range and increased from 9.1 to 22.6%. The total feed coefficient at a cost of 3387.3 g of feed per increase of 1347.7 g of biomass composed 2.5 units. Using the data obtained, it is possible to make primary calculations when organizing the cultivation of ARCC juveniles.

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Sri-uam, Puchong, Seri Donnuea, Sorawit Powtongsook, and Prasert Pavasant. "Integrated Multi-Trophic Recirculating Aquaculture System for Nile Tilapia (Oreochlomis niloticus)." Sustainability 8, no. 7 (June 29, 2016): 592. http://dx.doi.org/10.3390/su8060592.

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Sri-uam, Puchong, Seri Donnuea, Sorawit Powtongsook, and Prasert Pavasant. "Integrated Multi-Trophic Recirculating Aquaculture System for Nile Tilapia (Oreochlomis niloticus)." Sustainability 8, no. 7 (June 29, 2016): 592. http://dx.doi.org/10.3390/su8070592.

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Jeong, U.-Cheol, Feng Jin, Jong-Kuk Choi, Jong-Cheol Han, Byong-Dae Choi, and Seok-Joong Kang. "A Laboratory-scale Recirculating Aquaculture System for Sea Cucumber Apostichopus japonicus." Korean Journal of Fisheries and Aquatic Sciences 49, no. 3 (June 30, 2016): 343–50. http://dx.doi.org/10.5657/kfas.2016.0343.

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Azevedo, Raíza S., Alessandro Del’Duca, Edmo M. Rodrigues, Thiago A. Freato, and Dionéia E. Cesar. "Theory of microbial ecology: Applications in constructing a recirculating aquaculture system." Aquaculture Research 49, no. 12 (October 22, 2018): 3898–908. http://dx.doi.org/10.1111/are.13860.

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