We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Modelling mussel ( Mytilus spp.) microplastic accumulation
AI summary Read the abstract
Researchers applied a dynamic energy budget (DEB) model to simulate how mussels accumulate microplastics under varying exposure conditions, finding that feeding behavior and particle characteristics strongly influence uptake. This modeling approach provides a framework for predicting microplastic bioaccumulation in filter-feeding marine organisms.
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.
More Papers Like This
Modelling mussel ( Mytilus spp. ) microplastic accumulation
AI summary Read the abstract
Researchers developed a dynamic energy budget model to simulate how mussels accumulate microplastics from their environment, validated against field data from both wild and farmed mussel populations. The model can help predict microplastic body burdens in commercially important filter feeders under different environmental conditions.
review of "Modelling mussel (Mytilus spp.) microplastic accumulation" by Stamataki et al.
AI summary Read the abstract
This peer review provides detailed technical feedback on a Dynamic Energy Budget model paper simulating microplastic accumulation in wild and cultured mussels. The reviewer comments positively on the approach while suggesting refinements to uncertainty analysis and model validation.
review for the manuscript entitled “Modelling mussel (Mytilus spp.) microplastic accumulation."
AI summary Read the abstract
This is a peer review document providing substantive feedback on a Dynamic Energy Budget model paper about microplastic accumulation in mussels, commenting on model calibration, data validation, and uncertainty analysis.
Insights into the uptake, elimination and accumulation of microplastics in mussel
AI summary Read the abstract
Researchers investigated how mussels take up, eliminate, and accumulate high-density polyethylene microplastics smaller than 22 micrometers. They found that mussels cleared microplastics at the same rate as similarly sized food particles, but smaller particles (under 6 micrometers) were retained much longer in the digestive gland. After six days of depuration, about 85 percent of ingested microplastics were eliminated, but 2 to 6 percent remained embedded in digestive tissue, indicating that small microplastics can accumulate in filter-feeding organisms.
The Effect of Microplastics on the Bioenergetics of the Mussel Mytilus coruscus Assessed by Cellular Energy Allocation Approach
AI summary Read the abstract
Researchers studied the effects of polystyrene microplastics on the energy budget of mussels using a cellular energy allocation approach. They found that higher concentrations of microplastics increased energy demands while depleting carbohydrate, lipid, and protein stores, with lipid and protein levels failing to fully recover even after the microplastics were removed.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.