Predictive score and probability of CTX-like toxicity in fish samples from the official control of ciguatera in the Canary Islands
| Autor: | F. Real, Begoña Acosta-Hernández, Natalia García-Álvarez, Antonio Fernández, Pedro Saavedra, Daniel Padilla, Freddy Silva Sergent, Manuela Martel Suárez, J. Andres Sanchez-Henao, Jorge Diogène |
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| Přispěvatelé: | Producció Animal, Aigües Marines i Continentals |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Veterinary medicine
Environmental Engineering Ciguatera Ciguatoxin 010504 meteorology & atmospheric sciences Wahoo Population 010501 environmental sciences 01 natural sciences Ciguatoxins Fish Diseases medicine Environmental Chemistry Animals Grouper education Amberjack Waste Management and Disposal 0105 earth and related environmental sciences Islands education.field_of_study biology Fishes Epinephelus marginatus Ciguatera Poisoning biology.organism_classification medicine.disease Pollution Seriola dumerili Seafood Spain |
| Zdroj: | IRTA Pubpro. Open Digital Archive Institut de Recerca i Tecnologia Agroalimentàries (IRTA) |
| Popis: | This research identifies factors associated with the contamination by ciguatoxins (CTXs) in a population of fish and proposes a predictive score of the presence of CTX-like toxicity in amberjack samples from the official control program of ciguatera in the Canary Islands of the Directorate-General (DG) Fisheries (Canary Government). Out of the 970 samples of fish studied, 177 (18.2%) samples showed CTX-like toxicity. The fish were classified according to the species, amberjack (Seriola dumerili and S. rivoliana) (n = 793), dusky grouper (Epinephelus marginatus) (n = 145) and wahoo (Acanthocybium solandri) (n = 32). The data were separated by species category and statistically examined, resulting in 137 (17.3%) amberjack and 39 (26.9%) grouper samples showing CTX-like toxicity; regarding wahoo species, only 1 toxic sample (3.1%) was found. According to fishing location the contamination rates suggested grouping the islands in four clusters; namely: {El Hierro: HI; La Gomera: LG; La Palma: LP}, {Gran Canaria: GC; Tenerife: TF}, {Fuerteventura: FU} and {Lanzarote: LZ}. For the amberjack species, the multivariate logistic regression showed the factors that maintained independent association with the outcome, which were the warm season (OR = 3.617; 95% CI = 1.249–10.474), the weight (per kg, 1.102; 95% CI = 1.069–1.136) and the island of fish catching. A prediction score was obtained for the probability of contamination by CTX in amberjack fish samples. The area under de curve (AUC) obtained using the validation data was 0.747 (95% CI = 0.662–0.833). Regarding grouper species, the island of fishing was the only factor that showed significant differences associated with the presence of CTX-like toxicity. We provide herein data for a better management and prediction of ciguatera in the Canary Islands, suggesting a review of the minimum limits of fish weight established by the Canary Government for the control program. info:eu-repo/semantics/acceptedVersion |
| Databáze: | OpenAIRE |
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