Predictive model of food intake of the Seabass Dicentrarchus labrax in closed aquaculture systems

Abstract

Event Abstract Back to Event Predictive model of food intake of the Seabass Dicentrarchus labrax in closed aquaculture systems Allan T. Souza1*, Irene Martins2, José F. Gonçalves3 and Rodrigo Ozorio1 1 CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Portugal 2 IMAR - Institute of Marine Reasearch, Portugal 3 ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Portugal Fish feeding is the main source of waste in aquaculture and is also responsible for most of the environmental impacts derived from this activity. The European Seabass Dicentrarchus labrax is one of the most farmed fishes in the continent, generating an important load of waste on the environment. The consumption of food in fishes is highly dependent on the water temperature and salinity, which create a source of variability on the amount of the ration consumed by fishes. This issue is often neglected by farmers, which aggravates the ration waste. The use of models in aquaculture is increasing in the recent years, and is an excellent tool to combine an increased production with the mitigation of environmental impacts. In this context, this study aimed at developing a predictive model of the D. labrax consumption rate in closed aquaculture systems. Based on the literature review we were able to develop a conceptual diagram and a prototype of the model using the STELLA software (isee®). The preliminary results indicated that the model was capable of predicting the ration consumption of the D. labrax according to the oscillations in the water temperature and salinity. The consumption rate and growth were higher at 21ºC and with a salinity of 28 psu. Laboratory assays are need to validate the models outputs, and they are scheduled to start in October 2015. Finally, the model’s structure, equations, inputs and outputs were integrated into an easy-to-use software developed by the FoodInTech® company, that will help farmers to increase their yields and reduce the waste of ration and the nutrient load on the environment. Acknowledgements This research was supported by project MODELFISH (31-03-01-FEP-0152), funded by PROMAR and co-funded by the European Fisheries Fund (EFF). This work was partially funded by AQUAIMPROV (reference NORTE-07-0124-FEDER-000038), co-financed by the North Portugal Regional Operational Programme (ON.2 - O Novo Norte), under the National Strategic Reference Framework, through the European Regional Development Fund. Keywords: Aquaculture, modelling, Modelling and simulation, piscicultura, sotware Conference: XV European Congress of Ichthyology, Porto, Portugal, 7 Sep - 11 Sep, 2015. Presentation Type: Poster Presentation Topic: Physiology, Behavior and Toxicology Citation: Souza AT, Martins I, Gonçalves JF and Ozorio R (2015). Predictive model of food intake of the Seabass Dicentrarchus labrax in closed aquaculture systems. Front. Mar. Sci. Conference Abstract: XV European Congress of Ichthyology. doi: 10.3389/conf.FMARS.2015.03.00216 Copyright: The abstracts in this collection have not been subject to any Frontiers peer review or checks, and are not endorsed by Frontiers. They are made available through the Frontiers publishing platform as a service to conference organizers and presenters. The copyright in the individual abstracts is owned by the author of each abstract or his/her employer unless otherwise stated. Each abstract, as well as the collection of abstracts, are published under a Creative Commons CC-BY 4.0 (attribution) licence (https://creativecommons.org/licenses/by/4.0/) and may thus be reproduced, translated, adapted and be the subject of derivative works provided the authors and Frontiers are attributed. For Frontiers’ terms and conditions please see https://www.frontiersin.org/legal/terms-and-conditions. Received: 09 Dec 2015; Published Online: 09 Dec 2015. * Correspondence: Dr. Allan T Souza, CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Porto, 4050-543, Portugal, allantsouza@gmail.com Login Required This action requires you to be registered with Frontiers and logged in. To register or login click here. Abstract Info Abstract The Authors in Frontiers Allan T Souza Irene Martins José F Gonçalves Rodrigo Ozorio Google Allan T Souza Irene Martins José F Gonçalves Rodrigo Ozorio Google Scholar Allan T Souza Irene Martins José F Gonçalves Rodrigo Ozorio PubMed Allan T Souza Irene Martins José F Gonçalves Rodrigo Ozorio Related Article in Frontiers Google Scholar PubMed Abstract Close Back to top Javascript is disabled. Please enable Javascript in your browser settings in order to see all the content on this page.