Development and application of a mechanistic nutrient-based model for precision fish farming

This manuscript describes and evaluates the FEEDNETICS model, a detailed mechanistic nutrient-based model that has been developed to be used as a data interpretation and decisionsupport tool by fish farmers, aquafeed producers, aquaculture consultants and researchers. The modelling framework compris...

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Bibliographic Details
Published in:Journal of Marine Science and Engineering
Main Authors: Soares, Filipe M. R. C., Nobre, Ana M. D., Raposo, Andreia I. G., Mendes, Rodrigo, Engrola, Sofia, Rema, Paulo J. A. P., Conceição, Luís E. C., Silva, Tomé S.
Format: Article in Journal/Newspaper
Language:English
Published: MDPI 2023
Subjects:
Aquaculture
Fish nutrition
Precision fish farming
Mechanistic nutrient-based model
Numerical model
Decision-support tool
Atlantic salmon
Salmo salar
Online Access:http://hdl.handle.net/10400.1/19350
https://doi.org/10.3390/jmse11030472
Description
Summary:This manuscript describes and evaluates the FEEDNETICS model, a detailed mechanistic nutrient-based model that has been developed to be used as a data interpretation and decisionsupport tool by fish farmers, aquafeed producers, aquaculture consultants and researchers. The modelling framework comprises two main components: (i) fish model, that simulates at the individual level the fish growth, composition, and nutrient utilization, following basic physical principles and prior information on the organization and control of biochemical/metabolic processes; and (ii) farm model, that upscales all information to the population level. The model was calibrated and validated for five commercially relevant farmed fish species, i.e., gilthead seabream (Sparus aurata), European seabass (Dicentrarchus labrax), Atlantic salmon (Salmo salar), rainbow trout (Oncorhynchus mykiss), and Nile tilapia (Oreochromis niloticus), using data sets covering a wide range of rearing and feeding conditions. The results of the validation of the model for fish growth are consistent between species, presenting a mean absolute percentage error (MAPE) between 11.7 and 13.8%. Several uses cases are presented, illustrating how this tool can be used to complement experimental trial design and interpretation, and to evaluate nutritional and environmental effects at the farm level. FEEDNETICS provides a means of transforming data into useful information, thus contributing to more efficient fish farming Grant agreement no. 818367; FEEDNETICS 4.0, funded by EUROSTARS-2 program; FEDER/ERDF, CRESC Algarve 2020 and NORTE 2020; PT-INNOVATION-0099; LA/P/0101/2020 info:eu-repo/semantics/publishedVersion

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