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CC Anyadike, CC Mbajiorgu, GN Ajah
2016 Nigerian Journal of Technology  
There is therefore a serious need to develop models that can predict the effects of environment on the performance of indigenous fish species.  ...  This paper reviewed existing simulation models of aquacultural production systems with the aim of adopting a suitable one for predicting the environment, performance of African cultured indigenous fish  ...  In addition, fish growth is influenced by one or more internal factors including body size and genotype.  ... 
doi:10.4314/njt.v35i2.29 fatcat:p5p37t4bo5bk5abgefqxniakoa

The relative roles of domestication, rearing environment, prior residence and body size in deciding territorial contests between hatchery and wild juvenile salmon

Neil B. Metcalfe, Sveinn K. Valdimarsson, Ian J. Morgan
2003 Journal of Applied Ecology  
Further analysis on each stock separately showed that the rel¬ ative body size of the two contestants had a marginally significant effect on the outcome in pairings of Farm 1 h fish (logistic regression  ...  in body size and found no trend, so if there is a size effect it cannot be strong.  ... 
doi:10.1046/j.1365-2664.2003.00815.x fatcat:uo4sx7k2yvfjln64lxpceix63a

An Optimization Scheme for Water Pump Control in Smart Fish Farm with Efficient Energy Consumption

Israr Ullah, DoHyeun Kim
2018 Processes  
In this paper, we present a general system design for smart fish farms.  ...  In this paper, we present a general system design for smart fish farms.  ...  Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/pr6060065 fatcat:qborcpgkdvdfxbwol7ai4hgey4

Interactions of cage aquaculture in Nile Delta lakes: Insights from field data and models

Daniele Brigolin, Fabio Pranovi, Suzan Kholeif, Kahled Abdelsalam, Roberto Pastres
2016 Regional Studies in Marine Science  
In this paper, we present a cost-effective approach to the assessment of the impact of fish cage culture in transitional water bodies characterized by limited exchanges with the sea.  ...  These findings suggest that a cost-effective monitoring programme of the environmental impact of intensive aquaculture could be implemented in Egyptian coastal Lakes, thus providing a science-based support  ...  The simulation model The environmental impact related to the load of organic matter released by a fish farm on water column and sediment biogeochemistry as well as on the benthic community was assessed  ... 
doi:10.1016/j.rsma.2016.06.002 fatcat:o55pphhft5clbf3cuakecilnf4

Post-escape dispersal of juvenile Atlantic cod Gadus morhua from Norwegian fish farms and their potential for recapture

RM Serra-Llinares, R Nilsen, I Uglem, P Arechavala-Lopez, PA Bjørn, C Noble
2013 Aquaculture Environment Interactions  
The escape of fish from sea-based aquaculture facilities is regarded as a potential environmental threat and is one of the biggest challenges the industry has faced in recent years.  ...  This suggests a high potential for recapture if the effort is focused on the littoral area and not in the immediate vicinity of the farm.  ...  We also thank the staff members at Cod Farmers and the local fishers in Gildeskål for their collaboration.  ... 
doi:10.3354/aei00051 fatcat:hmwy4n7pxvexfg623nyuqkmq3i

Effects of aquaculture on wild fish populations: a synthesis of data

Laura K Weir, James WA Grant
2005 Environmental Reviews  
The potential adverse environmental effects of aquaculture have been the subject of considerable attention in both the media and the scientific literature.  ...  No data are available to test for the direct effects of aquaculture organisms on the demographics of wild fish populations.  ...  Acknowledgements We thank Ian Fleming for input during the earlier stages of this work and Jeff Hutchings and two referees for commenting on the manuscript.  ... 
doi:10.1139/a05-012 fatcat:reaudyuevnallfnekyamzmeshi

Precision fish farming: A new framework to improve production in aquaculture

Martin Føre, Kevin Frank, Tomas Norton, Eirik Svendsen, Jo Arve Alfredsen, Tim Dempster, Harkaitz Eguiraun, Win Watson, Annette Stahl, Leif Magne Sunde, Christian Schellewald, Kristoffer R. Skøien (+2 others)
2017 Biosystems Engineering  
processes in fish farms.  ...  productive and environmentally friendly production of fish.  ...  Acknowledgements This study is the result of a strategic collaborative effort between the participating institutions, and has not been funded through external grants.  ... 
doi:10.1016/j.biosystemseng.2017.10.014 fatcat:g446ak7hozc5hhb5oih43gofsa

Nonintrusive methods for biomass estimation in aquaculture with emphasis on fish: a review

Daoliang Li, Yinfeng Hao, Yanqing Duan
2019 Reviews in Aquaculture  
Fish biomass estimation is one of the most common and important practices in aquaculture.  ...  Machine vision, acoustics, environmental DNA and resistivity counter provide the possibility of developing nonintrusive, faster and cheaper methods for in situ estimation of fish biomass.  ...  Acknowledgements This work was supported by China-UK Programme 'Next generation precision aquaculture: R&D on intelligent measurement, control and equipment technologies'  ... 
doi:10.1111/raq.12388 fatcat:34zvjmhftzfpzflurzhx6uix6e

A Decision Support System for Urban Agriculture using Digital Twin: A Case Study with Aquaponics

Adam Ghandar, Ayyaz Ahmed, Shahid Zulfiqar, Zhengchang Hua, Masatoshi Hanai, Georgios Theodoropoulos
2021 IEEE Access  
A case study is performed using a novel technology for urban farming: a cyber-physical implementation of aquaponics is enhanced with adaptive capabilities using a digital twin system and machine learning  ...  Increased uptake of urban farming can even relieve pressure on the natural environment by reducing the burden of production required from farmland by creating space for it to recover from accumulated damage  ...  ACKNOWLEDGMENT The authors would like to thank Yang Chen, Umar Hassan, and others for assistance with implementation of processing models.  ... 
doi:10.1109/access.2021.3061722 fatcat:qg357cbbejeb7kpkycrbbwovci

Selective consequences of catastrophes for growth rates in a stream-dwelling salmonid

Simone Vincenzi, Alain J. Crivelli, Jarl Giske, William H. Satterthwaite, Marc Mangel
2011 Oecologia  
density-dependent body growth can lead to the maintenance of a wide or narrow range of individual variation in body growth rates in environments that are constant (i.e., only demographic stochasticity)  ...  Optimal life histories in a fluctuating environment are likely to differ from those that are optimal in a constant environment, but we have little understanding of the consequences of bounded fluctuations  ...  Acknowledgments Simone Vincenzi and Jarl Giske worked on this paper while visiting the Center for Stock Assessment Research (CSTAR), a partnership between the Fisheries Ecology Division, Southwest Fisheries  ... 
doi:10.1007/s00442-011-2096-8 pmid:21837409 fatcat:eycm5nm34zd4hbrjl2xqhw37ei

Case Studies of Canadian Environmental Decision Support Systems [chapter]

William Booty, Isaac Wong
2010 Decision Support Systems  
The key components of the EEM program include a fish survey to assess effects on fish and a benthic invertebrate community survey to assess effects on fish habitat.  ...  Environmental performance standards for floral and faunal communities in terrestrial ecosystems are based on assessments and forecasts of land cover and land use in agricultural regions.  ...  etc.) in order to perform decision support functions.  ... 
doi:10.5772/39470 fatcat:krntb362anfgjbqwneliu37sl4

Disentangling the effects of sex, life history and genetic background in Atlantic salmon: growth, heart and liver under common garden conditions

William Bernard Perry, Monica F. Solberg, Christopher Brodie, Angela C. Medina, Kirthana G. Pillay, Anna Egerton, Alison Harvey, Simon Creer, Martin Llewellyn, Martin Taylor, Gary Carvalho, Kevin A. Glover
2020 Royal Society Open Science  
Moreover, the genetic basis of observed associated changes in artificial environments is still puzzling.  ...  Collectively, these results demonstrate an additive basis of growth and, despite a strong influence of domestication on growth, no clear evidence of changes in heart or liver morphology associated with  ...  of how wild-farmed interactions impact on wild populations and communities [47, 48] .  ... 
doi:10.1098/rsos.200811 pmid:33204455 pmcid:PMC7657880 fatcat:o66555urgngodczmbmejrklbru

Risk assessment of the environmental impact of Norwegian Atlantic salmon farming

Geir Lasse Taranger, Ørjan Karlsen, Raymond John Bannister, Kevin Alan Glover, Vivian Husa, Egil Karlsbakk, Bjørn Olav Kvamme, Karin Kroon Boxaspen, Pål Arne Bjørn, Bengt Finstad, Abdullah Sami Madhun, H. Craig Morton (+1 others)
2014 ICES Journal of Marine Science  
(iv) From 500 yearly investigations of local organic loading under fish farms, only 2% of them displayed unacceptable conditions in 2013.  ...  Here, we describe the background, methods and limitations of the risk assessment for the following hazards: genetic introgression of farmed salmon in wild populations, regulatory effects of salmon lice  ...  Acknowledgements We appreciate the excellent work of all those participating in the work with the Norwegian Risk assessment (Risikorapporten  ... 
doi:10.1093/icesjms/fsu132 fatcat:3wacwhv5lvdm5pfd6hkoagrdr4

Modelling sediment assimilative capacity and organic carbon degradation efficiency at marine fish farms

F Bravo, J Grant
2018 Aquaculture Environment Interactions  
The eutrophication of sediments underlying marine fish farms is one of the major environmental concerns of the industry and regulatory agencies.  ...  The combination of diagenetic modelling and geochemical indicators may contribute significantly to the development of more effective tools for site selection and environmental management of marine fish  ...  This study was supported by funds to J.G. as the NSERC-Cooke Industrial Research Chair in Sustainable Aquaculture, and to F.B. by the scholarship program BECAS CHILE for doctoral studies.  ... 
doi:10.3354/aei00267 fatcat:hueh3dxk5vafxe2kdvcmkjj5ou

Acoustic Telemetry: A Tool to Monitor Fish Swimming Behavior in Sea-Cage Aquaculture

Lidia Muñoz, Eneko Aspillaga, Miquel Palmer, João L. Saraiva, Pablo Arechavala-Lopez
2020 Frontiers in Marine Science  
Ten fish were implanted with acoustic tags equipped with pressure and acceleration sensors, and monitored in a commercial-size sea-cage for a period of 1 month.  ...  Acoustic telemetry techniques are very useful tools to monitor in detail the swimming behavior and spatial use of fish in artificial rearing environments at individual and group levels.  ...  The aim of this study was to evaluate the feasibility of using passive acoustic telemetry techniques in commercial conditions as a potential tool to monitor fish welfare in seacage aquaculture.  ... 
doi:10.3389/fmars.2020.00645 fatcat:6wphazdnjvggvpurmwioioxee4
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