Microplastic Abundance and Polymer Types in a Mediterranean Environment

Digka, Nikoletta; Tsangaris, Catherine; Kaberi, Helen; Adamopoulou, Argyro; Zeri, Christina

doi:10.1007/978-3-319-71279-6_3

Cited by 29 publications

(27 citation statements)

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“…As an example, Digka et al (2018b) confirmed that the smaller MPs (<1 mm) occupy the 62.3%, 96.9% and 100% in seawater, sediments and mussels from the N. Ionian Sea respectively. In a future work this selection pattern regarding size, could be simulated by suitable preference weights among different MPs sizes.…”

Section: Discussionsupporting

confidence: 53%

“…compared to the mussel"s tissue (20-90 μm). Apparently, smaller sized MPs seem to be dominant within the mussels in comparison with the ambient environment (Li et al, 2018, Qu et al, 2018, Digka et al, 2018b, implying that the mussel is more prone to ingest and retain smaller sized MPs.…”

Section: Discussionmentioning

confidence: 97%

“…The field data used to validate the model output in the N. Ionian Sea were obtained from Digka et al (2018bDigka et al ( , 2018a. In the framework of the "DeFishGear" project, mussels (M. galloprovincialis) were collected by hand from a long line type mussel culture farm in Thesprotia (N 39.606567 o E 20.149421 o ), in summer 2015 (July) at a sampling depth up to 3 m (Digka et al, 2018a).…”

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confidence: 99%

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confidence: 99%

“…The seawater concentration of MPs for the N. Ionian Sea implementation was obtained from Digka et al (2018b) and the DeFishGear project results (http://www.defishgear.net/project/mainlines-of-activities). In total, 12 manta net tows were conducted in the region, collecting a total number of n1=2,027 particles on October 2014 and n2=1,332 on April 2015, leading to an average of 280 particles per tow with size <1 mm and >330 μm (Digka et al, 2018b). In order to estimate the mean MPs concentration in the region, expressed as particles per volume, the dimensions of the manta net (W 60 cm H 24 cm, rectangular frame opening, mesh size 330 μm) and the sampling distance of each tow (~2 km) were used by multiplying the sample surface of the net by the trawled distance in meters (Maes et al, 2017), which resulted in a mean MPs concentration of 1.17 particles m -3 (233,333 particles km -2 ).…”

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confidence: 99%

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Modelling mussel (<i>Mytilus</i> spp.) microplastic accumulation

Stamataki¹,

Hatzonikolakis²,

Tsiaras³

et al. 2020

Preprint

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Abstract. Microplastics (MPs) are a contaminant of growing concern due to their widespread distribution and interactions with marine species, such as filter feeders. To investigate the MPs accumulation by wild and cultured mussels, a Dynamic Energy Budget (DEB) model was developed and validated with the available field data of Mytilus edulis (wild) from the North Sea and Mytilus galloprovincialis (cultured) from the North Ionian Sea. Towards a generic DEB model, the site-specific model parameter, half saturation coefficient (Xk) was applied as a power function of food density for the cultured mussel, while for the wild it was calibrated to a constant value. The DEB-accumulation model simulated the uptake and excretion rate of MPs, taking into account environmental characteristics (temperature and chlorophyll-a). An accumulation of MPs equal to 0.64 particles individual−1 (fresh tissue mass 1.9 g) and 0.91 particles individual−1 (fresh tissue mass 3.4 g) was found for the wild and cultured mussel respectively, in agreement with the field data. The inverse experiments investigating the depuration time of the wild and cultured mussel in a clean from MPs environment showed a 90 % removal of MPs load after 3 and 14 days, respectively. Furthermore, sensitivity tests on model parameters and forcing functions highlighted that besides MPs concentration, the accumulation is highly depended on temperature and chlorophyll-a of the surrounding environment. For this reason, an empirical equation was found relating directly the concentration of MPs in seawater, with MPs accumulation in mussel’s soft tissue, temperature and chlorophyll-a.

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Section: Discussionsupporting

confidence: 53%

Section: Discussionmentioning

confidence: 97%

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confidence: 99%

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confidence: 99%

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confidence: 99%

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Modelling mussel (<i>Mytilus</i> spp.) microplastic accumulation

Stamataki¹,

Hatzonikolakis²,

Tsiaras³

et al. 2020

Preprint

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Types, occurrence, and distribution of microplastics and metals contamination in sediments from south west of Kerkennah archipelago, Tunisia

Chouchene

Rocha-Santos

Ksibi

2020

Environ Sci Pollut Res

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Sea surface surveys for microplastic and floating marine macro litter items in coastal waters of Cabrera Archipelago Maritime Terrestrial National Park

Compa

Alomar

Rios-Fuster

et al. 2023

Environ Sci Pollut Res

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This study is aimed at identifying and comparing microplastics and floating marine litter along the sea surface in the marine protected area of Cabrera Archipelago Maritime Terrestrial National Park (Cabrera MPA) in the Balearic Islands. A total of 52 net surveys and 22 visual surveys were carried out between July and August in 2019 and 2020. The abundance of microplastic (MP) items was highest in the southern and eastern regions, with an average of 381,244.4 ± 1,031,082.8 items/km2 weighing an average of 927.1 ± 2731.4 g/km2. Most of these items were < 5 mm (81%) in size and were mainly composed of polyethylene and polypropylene (98%). In terms of floating marine macro litter (ML) from visual surveys, an average of 2028 ± 2084 items/km2 were observed. In this case, the majority of the ML items were plastic pieces (69%) measuring 2.5 to 50 cm. Furthermore, ML quantified by visual surveys was an order of magnitude higher than in similar studies carried out on large vessels, highlighting the importance of vessel height and speed for identifying the smallest size fractions (81%). The results of this study document the intensity of MPs and ML, primarily plastic, in coastal waters, and provide a baseline for management efforts to mitigate floating litter, in addition to raising awareness of the transferability of marine litter from other regions.

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Microplastic Abundance and Polymer Types in a Mediterranean Environment

Cited by 29 publications

References 10 publications

Modelling mussel (<i>Mytilus</i> spp.) microplastic accumulation

Modelling mussel (<i>Mytilus</i> spp.) microplastic accumulation

Types, occurrence, and distribution of microplastics and metals contamination in sediments from south west of Kerkennah archipelago, Tunisia

Sea surface surveys for microplastic and floating marine macro litter items in coastal waters of Cabrera Archipelago Maritime Terrestrial National Park

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Microplastic Abundance and Polymer Types in a Mediterranean Environment

Cited by 29 publications

References 10 publications

Modelling mussel (&lt;i&gt;Mytilus&lt;/i&gt; spp.) microplastic accumulation

Modelling mussel (&lt;i&gt;Mytilus&lt;/i&gt; spp.) microplastic accumulation

Types, occurrence, and distribution of microplastics and metals contamination in sediments from south west of Kerkennah archipelago, Tunisia

Sea surface surveys for microplastic and floating marine macro litter items in coastal waters of Cabrera Archipelago Maritime Terrestrial National Park

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Product

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Modelling mussel (<i>Mytilus</i> spp.) microplastic accumulation

Modelling mussel (<i>Mytilus</i> spp.) microplastic accumulation