Details

Autor(en) / Beteiligte

• Cardoso-Mohedano, Jose Gilberto
• Ruiz-Fernández, Ana Carolina
• Sanchez-Cabeza, Joan-Albert
• Camacho-Torres, Sonia Margarita
• Ontiveros-Cuadras, Jorge Feliciano

Titel

Microplastics transport in a low-inflow estuary at the entrance of the Gulf of California

Ist Teil von

• The Science of the total environment, 2023-04, Vol.870, p.161825-161825, Article 161825

Ort / Verlag

Netherlands: Elsevier B.V

Erscheinungsjahr

2023

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Microplastics (MPs) are recognized as a global emergent pollution impact, which can affect all food chains. Estimating MPs transport pathways in coastal ecosystems is needed to assess their likely effects. Here, we studied MPs accumulation and transport pathways in the Estero de Urias lagoon system (low-inflow estuary) using field data and a 3D particle model. Field results showed that the MPs present similar abundances throughout the study area during the dry and rainy seasons. Model simulations indicated that i) morphology and tidal currents caused the MPs discharged in the lagoon to remain inside, and ii) wind-induced currents caused the MPs in the coastal area to be transported to the southwest. These transport processes may be responsible for homogenizing MPs concentrations through the studied area. In addition, model simulations suggested that EUL-dense waters can export MPs from the coastal area to the sea bottom. [Display omitted] •MPs abundance in surface sediments is similar during the dry and rainy seasons.•MPs discharged to the lagoon mostly remain inside.•MPs discharged from a submarine outfall are mainly exported to the southwest.•The dense water of low-flow estuaries can export the MPs to the deep sea.