Aquaculture is a fundamental sector of the food industry nowadays. However, to become a sustainable and more profitable industry, it is necessary to monitor several associated parameters, such as temperature, salinity, ammonia, potential of hydrogen, nitrogen dioxide, bromine, among others. Their regular and simultaneous monitoring is expected to predict and avoid catastrophes, such as abnormal fish mortality rates. In this paper, we propose a novel anomaly detection approach for the early prediction of high fish mortality based on a multivariate Gaussian probability model. The goal of this approach is to determine the correlation between the number of daily registered physicochemical parameters of the fish tank water and the fish mortality. The proposed machine learning model was fitted with data from the weaning and pre-fattening phases of Senegalese sole (Solea senegalensis) collected over 2018, 2019, and 2020. This approach is suitable for real-time tracking and successful prediction of up to 80% of the high fish mortality rates. To the best of our knowledge, the proposed anomaly detection approach is the first time studied and applied in the framework of the aquaculture industry.
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February 2021
Research Article|
February 19 2021
Prediction of fish mortality based on a probabilistic anomaly detection approach for recirculating aquaculture system facilities
Bruna D. M. Lopes;
Bruna D. M. Lopes
1
Physics Department and i3N, University of Aveiro, Campus Universitário de Santiago
, 3810-193 Aveiro, Portugal
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Luís C. B. Silva
;
Luís C. B. Silva
a)
2
Department of Electrical Engineering, Federal University of Espírito Santo
, 29075-910 Vitória, Brazil
a)Author to whom correspondence should be addressed: bluiscicero@yahoo.com
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Isidro M. Blanquet;
Isidro M. Blanquet
3
Safiestela S.A., SEA8 group
, 4570-275 Estela, Portugal
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Pétia Georgieva;
Pétia Georgieva
4
Electronics, Telecomunication and Informatics Department, University of Aveiro, Campus Universitário de Santiago
, 3810-193 Aveiro, Portugal
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Carlos A. F. Marques
Carlos A. F. Marques
b)
1
Physics Department and i3N, University of Aveiro, Campus Universitário de Santiago
, 3810-193 Aveiro, Portugal
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a)Author to whom correspondence should be addressed: bluiscicero@yahoo.com
b)
Electronic mail: carlos.marques@ua.pt
Rev. Sci. Instrum. 92, 025119 (2021)
Article history
Received:
January 22 2021
Accepted:
January 31 2021
Citation
Bruna D. M. Lopes, Luís C. B. Silva, Isidro M. Blanquet, Pétia Georgieva, Carlos A. F. Marques; Prediction of fish mortality based on a probabilistic anomaly detection approach for recirculating aquaculture system facilities. Rev. Sci. Instrum. 1 February 2021; 92 (2): 025119. https://doi.org/10.1063/5.0045047
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