Efficacy of microplastic depuration on two commercial oyster species from the west coast of Ireland
Abstract Studies investigating microplastics (MPs) in marine species have been published over recent decades, including studies on depuration efficacy on aquaculture products. This preliminary study investigates the depuration efficacy of MPs in two commercial oyster species from Ireland. The innova...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2023-10-01
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| Series: | Journal of the World Aquaculture Society |
| Subjects: | |
| Online Access: | https://doi.org/10.1111/jwas.12989 |
| _version_ | 1797655352563466240 |
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| author | Ann Tracy Paul Colin Hannon Mateja Švonja Iarfhlaith Connellan João Frias |
| author_facet | Ann Tracy Paul Colin Hannon Mateja Švonja Iarfhlaith Connellan João Frias |
| author_sort | Ann Tracy Paul |
| collection | DOAJ |
| description | Abstract Studies investigating microplastics (MPs) in marine species have been published over recent decades, including studies on depuration efficacy on aquaculture products. This preliminary study investigates the depuration efficacy of MPs in two commercial oyster species from Ireland. The innovative aspects are the sampling size (n = 50 per species) and the experiment duration (up to 96 h). The case study organisms are the Pacific oyster (Magallana gigas) and the European flat oyster (Ostrea edulis). Prior to depuration, the mean MP concentration on M. gigas edible tissue was 0.6 MP g−1 while for O. edulis was 0.4 MP g−1. Significant differences in mean MP concentrations were identified after 96‐h for M. gigas 0.2 MP g−1 (p = 0.014) and O. edulis, 0.1 MP g−1 (p = 0.003). Additionally, no significant correlation was established between MP concentrations and edible tissue weight. Polymer identification revealed that 51.6% were fibers of natural origin. Preliminary results show that increasing depuration times beyond 72‐h can significantly reduce MPs in selected oyster species, which is what is being recommended with this baseline study. Further investigation on commercial conditions at adequate depuration facilities is required. Given the relevance of low‐trophic aquaculture species for local economies, this preliminary study provides important baseline information for stakeholders. |
| first_indexed | 2024-03-11T17:13:02Z |
| format | Article |
| id | doaj.art-09d8e29172f1459f981b759a24ae5645 |
| institution | Directory Open Access Journal |
| issn | 0893-8849 1749-7345 |
| language | English |
| last_indexed | 2024-03-11T17:13:02Z |
| publishDate | 2023-10-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of the World Aquaculture Society |
| spelling | doaj.art-09d8e29172f1459f981b759a24ae56452023-10-20T05:29:10ZengWileyJournal of the World Aquaculture Society0893-88491749-73452023-10-015451217123410.1111/jwas.12989Efficacy of microplastic depuration on two commercial oyster species from the west coast of IrelandAnn Tracy Paul0Colin Hannon1Mateja Švonja2Iarfhlaith Connellan3João Frias4Marine & Freshwater Research Centre Atlantic Technological University Galway IrelandMarine & Freshwater Research Centre Atlantic Technological University Galway IrelandMarine & Freshwater Research Centre Atlantic Technological University Galway IrelandCartron Point Shellfish Ltd Co. Clare IrelandMarine & Freshwater Research Centre Atlantic Technological University Galway IrelandAbstract Studies investigating microplastics (MPs) in marine species have been published over recent decades, including studies on depuration efficacy on aquaculture products. This preliminary study investigates the depuration efficacy of MPs in two commercial oyster species from Ireland. The innovative aspects are the sampling size (n = 50 per species) and the experiment duration (up to 96 h). The case study organisms are the Pacific oyster (Magallana gigas) and the European flat oyster (Ostrea edulis). Prior to depuration, the mean MP concentration on M. gigas edible tissue was 0.6 MP g−1 while for O. edulis was 0.4 MP g−1. Significant differences in mean MP concentrations were identified after 96‐h for M. gigas 0.2 MP g−1 (p = 0.014) and O. edulis, 0.1 MP g−1 (p = 0.003). Additionally, no significant correlation was established between MP concentrations and edible tissue weight. Polymer identification revealed that 51.6% were fibers of natural origin. Preliminary results show that increasing depuration times beyond 72‐h can significantly reduce MPs in selected oyster species, which is what is being recommended with this baseline study. Further investigation on commercial conditions at adequate depuration facilities is required. Given the relevance of low‐trophic aquaculture species for local economies, this preliminary study provides important baseline information for stakeholders.https://doi.org/10.1111/jwas.12989aquaculturedepurationlow‐trophic speciesMarine Strategy Framework Directivemicroplasticsoysters |
| spellingShingle | Ann Tracy Paul Colin Hannon Mateja Švonja Iarfhlaith Connellan João Frias Efficacy of microplastic depuration on two commercial oyster species from the west coast of Ireland Journal of the World Aquaculture Society aquaculture depuration low‐trophic species Marine Strategy Framework Directive microplastics oysters |
| title | Efficacy of microplastic depuration on two commercial oyster species from the west coast of Ireland |
| title_full | Efficacy of microplastic depuration on two commercial oyster species from the west coast of Ireland |
| title_fullStr | Efficacy of microplastic depuration on two commercial oyster species from the west coast of Ireland |
| title_full_unstemmed | Efficacy of microplastic depuration on two commercial oyster species from the west coast of Ireland |
| title_short | Efficacy of microplastic depuration on two commercial oyster species from the west coast of Ireland |
| title_sort | efficacy of microplastic depuration on two commercial oyster species from the west coast of ireland |
| topic | aquaculture depuration low‐trophic species Marine Strategy Framework Directive microplastics oysters |
| url | https://doi.org/10.1111/jwas.12989 |
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