Existence of microplastics in the edible part of the sea cucumber Apostichopus japonicus

Mohsen, Mohamed; Lin, Chenggang; Shi-lin, Liu; Yang, Hongsheng

doi:10.1016/j.chemosphere.2021.132062

Cited by 18 publications

(4 citation statements)

References 53 publications

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“…Bioconcentration of MPs is supported by previous studies in marine invertebrates (Sfriso et al, 2020;A ́lvarez-Ruiz et al, 2021;Kuehr et al, 2022). In the case of sea cucumbers, bioconcentration has been hypothesised by other authors (Iwalaye et al, 2020;Lombardo et al, 2022;Martines et al, 2023) and confirmed in the genus Apostichopus (Mohsen et al, 2022). H. forskali was also proposed as a bioindicator of MPs pollution (Rios-Fuster et al, 2022;Fagiano et al, 2023); however, these studies focused on MPs ingestion analysing the gastrointestinal tract, so direct comparisons with our results are not reliable.…”

Section: Discussionsupporting

confidence: 46%

Microplastics pollution in genetically connected populations of Holothuria forskali from south Bay of Biscay

Menéndez,

Álvarez,

Garcia-Vazquez

et al. 2024

Front. Mar. Sci.

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IntroductioSea cucumbers are increasingly demanded as seafood in different cultures around the world. Holothurians could be potentially exploited in southern Bay of Biscay (Iberian Cantabrian coast) where they are not fished yet. Recent studies show relatively high pollution by emerging pollutants like microplastics (MPs) in the region; perhaps the exposure of holothurians to those MPs may put them at risk.Material and methodsHere we analysed 60 samples of Holothuria forskali taken from the west and east of the Cape Peñas transition zone in different seasons. MPs were quantified from body wall tissue, and mitochondrial DNA sequences (16S and COI genes) were employed to determine population connectivity and infer replenishment capacity.ResultsMuch higher MPs content in holothurian tissue than in water and sediments confirmed bioconcentration in this species. Significant differences between sampling locations were found, holothurian pollution being consistent with the occurrence of MPs sources like rivers, fishing ports and aquaculture. Genetic connectivity and no signals of diversity reduction in the most polluted samples suggest population replenishment capacity in H. forskali in the studied region. Results for a few samples of H. mammata from the same sampling points confirmed a higher MPs pollution at the west of Cape Peñas.DiscussionAccording to these exploratory results, sea cucumbers seem to accumulate MPs especially in the western Cantabrian Sea. Further studies are recommended to understand the possible MPs threat for these holothurian species.

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Section: Discussionsupporting

confidence: 46%

Microplastics pollution in genetically connected populations of Holothuria forskali from south Bay of Biscay

Menéndez,

Álvarez,

Garcia-Vazquez

et al. 2024

Front. Mar. Sci.

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“…in the coelomic fluid in the Bohai Sea and Yellow Sea, China. Microplastics have been found in edible tissue (Mohsen et al, 2022).…”

Section: Discussionmentioning

confidence: 99%

Analysis of Microplastic in Holothuria leucospilota (Echinodermata-Holothuroidea) and Sediments from Karachi coast, (Northern Arabian Sea)

Ahmed

Öztekin

Ali

et al. 2023

International Journal of Environment and Geoinformatics

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Microplastics are found in all aquatic environments, and they can have several negative impacts on marine life. In this study, the distribution of microplastics in the sediment and in the organs (gut, respiratory tree, and tentacles) of sea cucumber (Holothuria leucospilota) collected from Mubarak Village and Cape Monze on the Karachi coast of Pakistan were investigated. The microplastic amount in different organs of H. leucospilota was found as 15.3-40.45 pieces/individual in the gut, 15.45-23.9 pieces/individual in the respiratory tree, 8.9-9.55 pieces/individual in tentacles. The microplastic amount of sediment samples was 57.40-129.35 pieces/kg. Fibers were the dominant microplastic type, up to 99% of all samples. The results of the present study show that the region is contaminated with microplastics both in biota and in sediments.

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“…In the present study, microplastic fibers were decreased over time in A. japonicus after transfer to clean water. It is expected that these microplastic fibers would be eliminated outside the body of A. japonicus (even if transferred inside the body wall) because it was observed that microplastic fibers declined over time in the body wall of A. japonicus (Mohsen, Chenggang, et al, 2021). Several studies have employed depuration experiments to investigate the removal of microplastics.…”

Section: Discussionmentioning

confidence: 99%

“…Several studies have employed depuration experiments to investigate the removal of microplastics. In sea cucumbers ( A. japonicus ), individuals exposed to microplastic fibers and then transferred to clean water were found to contain lower microplastic fibers in their body walls after 48 h (Mohsen, Chenggang, et al, 2021). After transfer to clean water, reduced microplastic content was also observed in mussels (Li et al, 2021).…”

Section: Discussionmentioning

confidence: 99%

Fate of Microplastic Fibers in the Coelomic Fluid of the Sea Cucumber Apostichopus japonicus

Mohsen

Lin

Sui

et al. 2022

Enviro Toxic and Chemistry

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Sea cucumbers are economical and ecologically important species, playing a crucial role in nutrient recycling in the ocean and providing valuable bioactive compounds for nutrition. Previous research has demonstrated that microplastic fibers, which are widely recognized as emerging contaminants, are transferred to the perivisceral coelomic fluid during respiration in sea cucumbers; however, their fate in sea cucumbers is still not well understood. We tracked the status of sea cucumbers (Apostichopus japonicus) with polyester microplastic fibers in their coelomic fluid in clean water. The results showed that after transferring sea cucumbers to clean water, the number of microplastic fibers transferred significantly decreased in the coelomic fluid, but at least one microplastic fiber was found up to 60 days. In addition, sea cucumbers recovered from the effect of microplastic fiber transfer, as indicated by enzyme levels and histological observations. Furthermore, single microplastic fiber transfer over a 60‐day farmed period did not significantly affect the growth of sea cucumbers. However, repetitive microplastic fiber transfer (i.e., twice and thrice a week over 60 days) significantly decreased the growth rate (p < 0.05). Accordingly, increasing microplastic fibers in sea cucumber habitats pose a threat to sea cucumbers because they can disrupt development. Thus, farmers are advised to select locations for farming sea cucumbers where low microplastic fiber concentrations are expected. Environ Toxicol Chem 2023;42:205–212. © 2022 SETAC

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Existence of microplastics in the edible part of the sea cucumber Apostichopus japonicus

Cited by 18 publications

References 53 publications

Microplastics pollution in genetically connected populations of Holothuria forskali from south Bay of Biscay

Microplastics pollution in genetically connected populations of Holothuria forskali from south Bay of Biscay

Analysis of Microplastic in Holothuria leucospilota (Echinodermata-Holothuroidea) and Sediments from Karachi coast, (Northern Arabian Sea)

Fate of Microplastic Fibers in the Coelomic Fluid of the Sea Cucumber Apostichopus japonicus

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