Monitoring shrimp growth with control charts in aquaculture |
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| Affiliation: | 1. ICAR-Central Institute of Freshwater Aquaculture, Kausalyaganga, Bhubaneswar 751002, India;2. ICAR-Central Inland Fisheries Research Institute, Barrackpore, West Bengal, India;1. Escuela de Ciencias del Mar, Pontificia Universidad Católica de Valparaíso (ECM-PUCV), Avenida Altamirano 1480, CP 2340000, Valparaíso, Chile;2. Programa de Pós Graduação em Aquicultura, Universidade Federal do Rio Grande (FURG), Rua do Hotel, n°2, Cassino, 96210-030, Rio Grande, RS, Brazil;1. Department of Statistics at Agulhas Negras Military Academy (AMAN), Resende, Rio de Janeiro, Brazil;2. IEPG - Institute of Industrial Engineering and Management at Federal University of Itajubá (UNIFEI), Itajubá, Minas Gerais, Brazil |
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| Abstract: | This work proposes a method for the statistical monitoring of the weekly weight of shrimp in a fish farm. The design of control charts for shrimp growth presents several challenges, the main ones being the presence of trend and autocorrelation. Several control charts are proposed, the most efficient being a chart based on the residuals of a second order autoregression whose parameters vary with the week. A control chart with less computational complexity is also provided. It is simply based on growth rates and works well at detecting negative weight changes. Real data from a large shrimp farm has been used for both the design and the evaluation. |
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| Keywords: | Aquaculture Control charts Fish farm Shrimp growth Statistical process control |
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