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Microplastics Determination in Gastrointestinal Tracts of European Sea Bass (Dicentrarchus labrax) and Gilt-Head Sea Bream (Sparus aurata) from Tenerife (Canary Islands, Spain)

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Departamento de Química, Unidad Departamental de Química Analítica, Facultad de Ciencias, Universidad de La Laguna (ULL), Avda. Astrofísico Fco. Sánchez, s/n, 38206 San Cristóbal de La Laguna, Spain
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Departamento de Obstetricia y Ginecología, Pediatría, Medicina Preventiva y Salud Pública, Toxicología, Medicina Forense y Legal y Parasitología, Área de Medicina Preventiva y Salud Pública, Escuela Politécnica Superior de Ingeniería, Sección de Náutica, Máquinas y Radioelectrónica Naval, Universidad de La Laguna (ULL), Vía Auxiliar Paso Alto, 2, 38001 Santa Cruz de Tenerife, Spain
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Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias, Universidad de La Laguna (ULL), Avda. Astrofísico Fco. Sánchez, s/n, 38206 San Cristóbal de La Laguna, Spain
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Departamento de Biología Animal, Edafología y Geología, Avda. Astrofísico Fco. Sánchez, s/n, 38206 San Cristóbal de La Laguna, Spain
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Department of Chemistry, Sapienza University, P.le Aldo Moro, 5, 00185 Rome, Italy
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Department of Biology, Faculty of Sciences, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain
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Authors to whom correspondence should be addressed.
Academic Editor: Maria Graça Rasteiro
Polymers 2022, 14(10), 1931; https://doi.org/10.3390/polym14101931
Received: 23 April 2022 / Revised: 5 May 2022 / Accepted: 7 May 2022 / Published: 10 May 2022
Microplastic pollution has an extremely widespread distribution, to the extent that microplastics could be ingested by aquatic organisms, including species of commercial importance for fisheries and aquaculture. In this work, the anthropogenic particles content of the gastrointestinal tracts of 86 individuals of cultivated European sea bass (Dicentrarchus labrax, n = 45) and gilt-head sea bream (Sparus aurata, n = 41) from Tenerife (Canary Islands, Spain) was determined. Samples were bought at local markets and directly transported to the laboratory. After the dissection of the fishes and digestion of the gastrointestinal tracts in 10% KOH (w/v) at 60 °C for 24 h, the digests were filtered (50 µm stainless-steel mesh) and visualized under a stereomicroscope, finding that most of the items were colourless (47.7% for Dicentrarchus labrax and 60.9% for Sparus aurata) and blue (35.3% vs. 24.8%) microfibers, with an average length of 1957 ± 1699 µm and 1988 ± 1853 µm, respectively. Moreover, 15.3% of the microfibres were analysed by Fourier transform infrared spectroscopy, showing the prevalence of cellulosic fibres together with polyester, polyacrylonitrile, and poly(ether-urethane). This pattern (microplastics shapes, colours, sizes, and composition) clearly agrees with previous studies carried out in the Canary Islands region regarding the determination of microplastics in the marine environment. View Full-Text
Keywords: aquaculture; microplastics; Dicentrarchus labrax; Sparus aurata; Canary Islands; fishing; fourier-transform infrared spectroscopy aquaculture; microplastics; Dicentrarchus labrax; Sparus aurata; Canary Islands; fishing; fourier-transform infrared spectroscopy
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MDPI and ACS Style

Sánchez-Almeida, R.; Hernández-Sánchez, C.; Villanova-Solano, C.; Díaz-Peña, F.J.; Clemente, S.; González-Sálamo, J.; González-Pleiter, M.; Hernández-Borges, J. Microplastics Determination in Gastrointestinal Tracts of European Sea Bass (Dicentrarchus labrax) and Gilt-Head Sea Bream (Sparus aurata) from Tenerife (Canary Islands, Spain). Polymers 2022, 14, 1931. https://doi.org/10.3390/polym14101931

AMA Style

Sánchez-Almeida R, Hernández-Sánchez C, Villanova-Solano C, Díaz-Peña FJ, Clemente S, González-Sálamo J, González-Pleiter M, Hernández-Borges J. Microplastics Determination in Gastrointestinal Tracts of European Sea Bass (Dicentrarchus labrax) and Gilt-Head Sea Bream (Sparus aurata) from Tenerife (Canary Islands, Spain). Polymers. 2022; 14(10):1931. https://doi.org/10.3390/polym14101931

Chicago/Turabian Style

Sánchez-Almeida, Raquel, Cintia Hernández-Sánchez, Cristina Villanova-Solano, Francisco Javier Díaz-Peña, Sabrina Clemente, Javier González-Sálamo, Miguel González-Pleiter, and Javier Hernández-Borges. 2022. "Microplastics Determination in Gastrointestinal Tracts of European Sea Bass (Dicentrarchus labrax) and Gilt-Head Sea Bream (Sparus aurata) from Tenerife (Canary Islands, Spain)" Polymers 14, no. 10: 1931. https://doi.org/10.3390/polym14101931

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