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Modelling integrated multi-trophic aquaculture: Optimizing a three trophic level system
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Advisor(s)
Abstract(s)
As a fast-growing food production industry, aquaculture is dealing with the need for intensification due to the
global increasing demand for fish products. However, this also implies the use of more sustainable practices to
reduce negative environmental impacts currently associated with this industry, including the use of wild resources, destruction of natural ecosystems, eutrophication of effluent receiving bodies, impacts due to inadequate medication practices, among others. Using multi-species systems, such as integrated multi-trophic
aquaculture, allows to produce economically important species while reducing some of these aquaculture
concerns, through biomitigation of aquaculture wastes and reduction of diseases outbreaks, for example.
Applying mathematical models to these systems is crucial to control and understand the interactions between
species, maximizing productivity, with important environmental and economic benefits. Here, the application of
some equations and models available in the literature, regarding basic parameters, is discussed – population
dynamics, growth, waste production, and filtering rate – when considering the description and optimization of a
theoretical integrated multi-trophic aquaculture operation composed by three trophic levels.
Description
This study had the support of Fundação para a Ciência e a
Tecnologia (FCT), through the strategic projects UID/MAR/04292/
2013 granted to MARE and UID/MAT/04106/2013 granted to CIDMA,
and the grants awarded to Luana Granada (SFRH/BD/102036/2014)
and Sara Novais (SFRH/BPD/94500/2013). This work was also supported by the Integrated Programme of SR&TD “Smart Valorization of
Endogenous Marine Biological Resources Under a Changing Climate”
(reference Centro-01-0145-FEDER-000018), co-funded by Centro 2020
program, Portugal 2020, European Union, through the European
Regional Development Fund.
Keywords
IMTA Mathematical modelling Recirculating aquaculture system Sustainability
Citation
Granada L, Lopes S, Novais SC, Lemos MFL (2018). Modelling integrated multi-trophic aquaculture: Optimizing a three trophic level system. Aquaculture 495: 90-97 (doi: 10.1016/j.aquaculture.2018.05.029)