One of the main issues in aquaculture is the high cost of the lost food when the fish are fed. Furthermore, this wasted food is deposited in the seabed and generates an environmental impact on the surrounding area. It causes failure to uphold aquaculture legislation. The authors propose a feeding control system based on groups of sensors that take the appropriate decisions when the fish are fed in marine fish farms. This system mixes data obtained from a group of sensors and performs an exhaustive control on the food offered to the fish, thus reducing costs. This will avoid wasting large quantities of food and an economic saving will be achieved. To develop the proposed system, the authors used the behaviour of the movements of the fishes and some parameters from the water. These movements are monitored strategically by a group ofunderwater transducers placed along the length, width and depth of the cage and, through data fusion, they provide the information needed in the system to continue feeding the fish or not. © 2011 The Institution of Engineering and Technology. García Pineda, M.; Sendra Compte, S.; Lloret Mauri, G.; Lloret, J. (2011). Monitoring and control sensor system for fish feeding in marine fish farms. IET Communications. 5(12):1682-1690. doi:10.1049/iet-com.2010.0654 Ahn, O., Petrell, R. J., & Harrison, P. J. (1998). Journal of Applied Phycology, 10(4), 333-340. doi:10.1023/a:1008092521651 ‘AcuiculturaLatinoamericana: el poder de un gigante’, Industry report, 20 January 2006 Available at: http://www.intrafish.no/global/industryreports/article99314.ece, accessed November 2010 Cromey, C. J., Nickell, T. D., & Black, K. D. (2002). DEPOMOD—modelling the deposition and biological effects of waste solids from marine cage farms. Aquaculture, 214(1-4), 211-239. doi:10.1016/s0044-8486(02)00368-x Ferreira, J. G., Hawkins, A. J. S., & Bricker, S. B. (2007). Management of productivity, environmental effects and profitability of shellfish aquaculture — the Farm Aquaculture Resource Management (FARM) model. Aquaculture, 264(1-4), 160-174. doi:10.1016/j.aquaculture.2006.12.017 Pérez, O. M., Telfer, T. C., Beveridge, M. C. M., & Ross, L. G. (2002). Geographical Information Systems (GIS) as a Simple Tool to Aid Modelling of Particulate Waste Distribution at Marine Fish Cage Sites. Estuarine, Coastal and Shelf Science, 54(4), 761-768. doi:10.1006/ecss.2001.0870 Corner, R. A., Brooker, A. J., Telfer, T. C., & Ross, L. G. (2006). A fully integrated GIS-based model of particulate waste distribution from marine fish-cage sites. Aquaculture, 258(1-4), 299-311. doi:10.1016/j.aquaculture.2006.03.036 McCausland, W. D., Mente, E., Pierce, G. J., & Theodossiou, I. (2006). A simulation model of sustainability of coastal communities: Aquaculture, fishing, environment and labour markets. Ecological Modelling, 193(3-4), 271-294. doi:10.1016/j.ecolmodel.2005.08.028 AQCESS Website: http://www.abdn.ac.uk/aqcess/, accessed November 2010 BIOFAQs Website: http://projects.mbss.org/Biofaq/, accessed November 2010 EACASA Website: http://www.ecasa.org.uk/, accessed November 2010 ICES Working Group on Environmental Interactions of Mariculture Website: http://www.ices.dk/workinggroups/ViewWorkingGroup.aspx?ID= 165, accessed November 2010 MERAMED Website: http://meramed.akvaplan.com/, accessed November 2010 MEDVEG Website: http://www.ist-world.org/ProjectDetails.aspx?ProjectId=eddefd9a8e4248a6b0662fa2d33af423, accessed November 2010 Karakassis, I. (2000). Impact of cage farming of fish on the seabed in three Mediterranean coastal areas. ICES Journal of Marine Science, 57(5), 1462-1471. doi:10.1006/jmsc.2000.0925 Jover, M., Martı́nez, S., Tomás, A., and Pérez, L.: ‘Diseño y gestión de granjasacuı́colas’, (Polytechnic University of Valencia Press, Valencia, Spain 2005) FAO Animal Production and Health Manual, Section 4: On-farm production and use of feed and feed ingredients, Manual of Good Practices for the Feed Industry, No. 9, 2010 Beveridge, M.C.M.: ‘Cage aquaculture. Chapter 3: cage design and construction’, 3rd(Blackwell Publishing Ltd 2007) Saavedra Martı́nez, M.A: ‘Manejodel Cultivo de Tilapia, Managua, Nicaragua’, 31 July–4 August 2006. Available at: http://pdf.usaid.gov/pdf_docs/PNADK649.pdf://pdf.usaid.gov/pdf_docs/PNADK649.pdf, accessed November 2010 SALVANES, A. G. V., & HART, P. J. B. (1998). Individual variability in state-dependent feeding behaviour in three-spined sticklebacks. Animal Behaviour, 55(5), 1349-1359. doi:10.1006/anbe.1997.0707 Moi University: ‘Integrating BOMOSA cage fish farming system in reservoirs, ponds and temporary water bodies in Eastern Africa’. BOMOSA Project, Project no. 032103, September 2009 FAO Website. Available at: http://www.fao.org, accessed November 2010 JT Electric Centralised Automatic Feed System. Available at: http://www.jtelectric.com/00414/00690/, accessed November 2010 Octave Website: Available at: http://www.gnu.org/software/octave/, accessed November 2010

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Monitoring and control sensor system for fish feeding in marine fish farms

Abstract