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Pashaei R, Dzingelevičienė R, Węsławski JM, Olenin S. Mussels (Mytilus spp.) in Svalbard contain microplastic particles in tissues: Implications for monitoring. Chemosphere 2024; 353:141642. [PMID: 38442773 DOI: 10.1016/j.chemosphere.2024.141642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 02/28/2024] [Accepted: 03/02/2024] [Indexed: 03/07/2024]
Abstract
We examined the presence of microplastics in blue mussels Mytilus spp. from the intertidal zone of western Spitsbergen in Arctic Svalbard. The optical microscopy technique detected a total of 148 microplastics, with the highest concentration per mussel being 24 particles. Microplastics were found in 84% of the examined mussels. The microplastics ranged in size from <0.5 mm to 5 mm and consisted of fibers (83%), fragments (13%), plates (3%), and spherules (1%). The micro-Raman spectroscopy technique revealed four different types of polymers: polyethylene (67%), nylon-12 (17%), low-density polyethylene (11%), and polypropylene (5%). Our research shows that Arctic coastal waters are polluted with microplastics notwithstanding their remoteness. These findings suggest that microplastic contamination may harm marine life and coastal ecosystems and require further research into long-term environmental effects. We also indicate that intertidal mussels may be beneficial for monitoring microplastics because they can be collected without involving diving.
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Affiliation(s)
- Reza Pashaei
- Marine Research Institute of Klaipeda University, Klaipeda, Lithuania.
| | - Reda Dzingelevičienė
- Marine Research Institute of Klaipeda University, Klaipeda, Lithuania; Faculty of Health Sciences, Klaipeda University, Klaipeda, Lithuania.
| | | | - Sergej Olenin
- Marine Research Institute of Klaipeda University, Klaipeda, Lithuania.
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Hammel M, Touchard F, Burioli EAV, Paradis L, Cerqueira F, Chailler E, Bernard I, Cochet H, Simon A, Thomas F, Destoumieux-Garzón D, Charrière GM, Bierne N. Marine transmissible cancer navigates urbanized waters, threatening spillover. Proc Biol Sci 2024; 291:20232541. [PMID: 38378149 PMCID: PMC10878816 DOI: 10.1098/rspb.2023.2541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 01/22/2024] [Indexed: 02/22/2024] Open
Abstract
Inter-individual transmission of cancer cells represents a unique form of microparasites increasingly reported in marine bivalves. In this study, we sought to understand the ecology of the propagation of Mytilus trossulus Bivalve Transmissible Neoplasia 2 (MtrBTN2), a transmissible cancer affecting four Mytilus mussel species worldwide. We investigated the prevalence of MtrBTN2 in the mosaic hybrid zone of M. edulis and M. galloprovincialis along the French Atlantic coast, sampling contrasting natural and anthropogenic habitats. We observed a similar prevalence in both species, probably due to the spatial proximity of the two species in this region. Our results showed that ports had higher prevalence of MtrBTN2, with a possible hotspot observed at a shuttle landing dock. No cancer was found in natural beds except for two sites close to the hotspot, suggesting spillover. Ports may provide favourable conditions for the transmission of MtrBTN2, such as high mussel density, stressful conditions, sheltered and confined shores or buffered temperatures. Ships may also spread the disease through biofouling. Our results suggest ports may serve as epidemiological hubs, with maritime routes providing artificial gateways for MtrBTN2 propagation. This highlights the importance of preventing biofouling on docks and ship hulls to limit the spread of marine pathogens hosted by fouling species.
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Affiliation(s)
- M. Hammel
- ISEM, Univ Montpellier, CNRS, IRD, Montpellier, Occitanie, France
- IHPE, Univ Montpellier, CNRS, Ifremer, Univ Perpignan Via Domitia, Montpellier, France
| | - F. Touchard
- ISEM, Univ Montpellier, CNRS, IRD, Montpellier, Occitanie, France
| | - E. A. V. Burioli
- ISEM, Univ Montpellier, CNRS, IRD, Montpellier, Occitanie, France
- IHPE, Univ Montpellier, CNRS, Ifremer, Univ Perpignan Via Domitia, Montpellier, France
| | - L. Paradis
- ISEM, Univ Montpellier, CNRS, IRD, Montpellier, Occitanie, France
| | - F. Cerqueira
- ISEM, Univ Montpellier, CNRS, IRD, Montpellier, Occitanie, France
| | - E. Chailler
- ISEM, Univ Montpellier, CNRS, IRD, Montpellier, Occitanie, France
| | | | - H. Cochet
- Cochet Environnement, 56550 Locoal, France
| | - A. Simon
- ISEM, Univ Montpellier, CNRS, IRD, Montpellier, Occitanie, France
| | - F. Thomas
- CREEC/CANECEV (CREES), MIVEGEC, Unité Mixte de Recherches, IRD 224-CNRS 5290-Université de Montpellier, Montpellier, France
| | - D. Destoumieux-Garzón
- IHPE, Univ Montpellier, CNRS, Ifremer, Univ Perpignan Via Domitia, Montpellier, France
| | - G. M. Charrière
- IHPE, Univ Montpellier, CNRS, Ifremer, Univ Perpignan Via Domitia, Montpellier, France
| | - N. Bierne
- ISEM, Univ Montpellier, CNRS, IRD, Montpellier, Occitanie, France
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