Developmental toxicity of plastic leachates on the sea urchin Paracentrotus lividus
Rendell-Bhatti, F.; Paganos, P.; Pouch, A.; Mitchell, C.; D’Aniello, S.; Godley, B.J.; Pazdro, K.; Arnone, M.-I.; Jiménez-Guri, E. (2021). Developmental toxicity of plastic leachates on the sea urchin Paracentrotus lividus. Environ. Pollut. 269: 115744. https://dx.doi.org/10.1016/j.envpol.2020.115744 In: Environmental Pollution. Elsevier: Barking. ISSN 0269-7491; e-ISSN 1873-6424, more |   |
| Keywords | ASSEMBLEPlus Transnational Access
Scientific Publication
Toxicology > Ecotoxicology
Paracentrotus lividus (Lamarck, 1816) [WoRMS]
Marine/Coastal | | Author keywords | Microplastic, Leachates, Development, Sea urchin |
| Authors | | Top | - Rendell-Bhatti, F.
- Paganos, P.
- Pouch, A.
| - Mitchell, C.
- D’Aniello, S.
- Godley, B.J., more
| - Pazdro, K.
- Arnone, M.-I.
- Jiménez-Guri, E.
|
| Abstract | Microplastic pollution has become ubiquitous, affecting a wide variety of biota. Although microplastics are known to alter the development of a range of marine invertebrates, no studies provide a detailed morphological characterisation of the developmental defects. Likewise, the developmental toxicity of chemicals leached from plastic particles is understudied. The consequences of these developmental effects are likely underestimated, and the effects on ecosystems are unknown. Using the sea urchin Paracentrotus lividus as a model, we studied the effects of leachates of three forms of plastic pellet: new industrial pre-production plastic nurdles, beached pre-production nurdles, and floating filters, known as biobeads, also retrieved from the environment. Our chemical analyses show that leachates from beached pellets (biobead and nurdle pellets) and highly plasticised industrial pellets (PVC) contain polycyclic aromatic hydrocarbons and polychlorinated biphenyls, which are known to be detrimental to development and other life stages of animals. We also demonstrate that these microplastic leachates elicit severe, consistent and treatment-specific developmental abnormalities in P. lividus at embryonic and larval stages. Those embryos exposed to virgin polyethylene leachates with no additives nor environmental contaminants developed normally, suggesting that the abnormalities observed are the result of exposure to either environmentally adsorbed contaminants or pre-existing industrial additives within the polymer matrix. In the light of the chemical contents of the leachates and other characteristics of the plastic particles used, we discuss the phenotypes observed during our study, which include abnormal gastrulation, impaired skeletogenesis, abnormal neurogenesis, redistribution of pigmented cells and embryo radialisation. |
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