Assessment of microplastic content in Diadema africanum sea urchin from Tenerife (Canary Islands, Spain)

Sevillano-González, Marta; González‐Sálamo, Javier; Hernández-Sánchez, Cintia; Torralbo, Sergio Catalán; Seguí, Airán Ródenas

doi:10.1016/j.marpolbul.2021.113174

Cited by 15 publications

(5 citation statements)

References 32 publications

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“…The average size of the microfibers was 2423 ± 2235 µm. Sevillano-González et al studied for the first time the presence of MPs in Diadema Africanum sea urchins collected at two locations of Tenerife, 32 km from the fish farms where specimens evaluated in the present study were reared [ 23 ]. The analysis of 33 individuals showed that 97.5% of the items were microfibers (average size of 1642 ± 1616 μm), mainly blue (43.3 and 47.0% in the two sampling points) and also colourless (32.5 and 39.5%).…”

Section: Resultsmentioning

confidence: 99%

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

et al. 2022

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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.

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Section: Resultsmentioning

confidence: 99%

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

et al. 2022

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“…Many studies have been undertaken globally on occurrence, types, sources, etc. in marine organisms such as molluscs (Li et al, 2015(Li et al, , 2018Abidli et al, 2019), arthropods (Devriese et al, 2015;Akhter and Panhwar, 2022), echinoderms (De-La-Torre et al, 2020;Sevillano-González et al, 2022), and fishes (Lusher et al, 2013;Saji Kumar et al, 2013;Tanaka and Takada, 2016;Kumar et al, 2018). In Pakistan, reported plastic pollution required attention but the actual unreported condition is alarming.…”

Section: Discussionmentioning

confidence: 99%

“…Marine organisms ingest microplastics (MPs) which ultimately moved across the food chain. Several studies have evaluated microplastic accumulation in marine species around the globe (Thompson et al, 2004;Avio et al, 2015a;Tanaka and Takada, 2016;Kumar et al, 2018;Sevillano-González et al, 2022) by the study of the targeted organ or entire organisms.…”

Section: Sample Treatmentmentioning

confidence: 99%

Microplastics assessment in Arabian Sea fishes: accumulation, characterization, and method development

et al. 2024

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Around the globe, plastic has been entering the aquatic system and is ingested by organisms. Identification, optimal digestion method, and characterization of the polymers to trace sources are of growing importance. Hence, the present work investigated microplastics accumulation, digestion protocol efficiency, and characterization of polymers with FTIR analysis in the guts of five fishes (Lethrinus nebulosus, Rastrelliger kanagurta, Acanthopagrus arabicus, Otolithes ruber, and Euryglossa orientalis) from the Karachi coastal area, Arabian Sea. A total of 1154 microplastics (MPs) were ingested by 29 out of 33 fish species (87%). The highest average MP/fish was recorded in Otolithes ruber (54) and the lowest in Rastrelliger kanagurta (19.42). Microfibers were the most abundant shape with the highest numbers (35.52%) as compared to the rest of the MPs identified. Transparent microfibers were recorded as the highest in numbers followed by red, black, blue, and green. In this study, KOH with different concentrations and exposure times along with oxidizing agent hydrogen peroxide was tested (Protocols 3 and 4). Results showed these bases were highly efficient in obtaining optimal digestion of the samples. FTIR analysis confirmed that the majority of the polymers found in the fish guts were polyethylene and polypropylene. This study validated for the first time the presence of these polymers of plastic in marine fish from Pakistan.

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“…Many islands report increasing problems related to the massive arrival of microplastics at their beaches, as indicated in various studies affected by the North Atlantic gyre concerning Azores [10,11], Madeira [10,12], other Atlantic islands [13,14] and the Canary Islands, [15][16][17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Bacterial Colonization of Microplastics at the Beaches of an Oceanic Island, Tenerife, Canary Islands

Hernández-Sánchez

Pestana-Ríos

Villanova-Solano

et al. 2023

IJERPH

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(1) Isolated systems, such as oceanic islands, are increasingly experiencing important problems related to microplastic debris on their beaches. The formation of microbial biofilm on the surface of microplastics present in marine environments provides potential facilities for microorganisms to survive under the biofilm. Moreover, microplastics act as a vehicle for the dispersion of pathogenic organisms, constituting a new route of exposure for humans. (2) In this study, the microbial content (FIO and Vibrio spp. and Staphylococcus aureus) of microplastics (fragments and pellets) collected from seven beaches of the oceanic island of Tenerife, in the Canary Islands (Spain), was determined. (3) Results showed that Escherichia coli was present in 57.1% of the fragments and 28.5% of the pellets studied. In the case of intestinal Enterococci, 85.7% of the fragments and 57.1% of the pellets tested positive for this parameter. Finally, 100% of the fragments and 42.8% of the pellets analyzed from the different beaches contained Vibrio spp. (4) This study shows that microplastics act as reservoirs of microorganisms that can increase the presence of bacteria indicating faecal and pathogenic contamination in bathing areas.

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Assessment of microplastic content in Diadema africanum sea urchin from Tenerife (Canary Islands, Spain)

Cited by 15 publications

References 32 publications

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

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

Microplastics assessment in Arabian Sea fishes: accumulation, characterization, and method development

Bacterial Colonization of Microplastics at the Beaches of an Oceanic Island, Tenerife, Canary Islands

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