Osmoregulatory responses in the neotropical fish species Astyanax lacustris, exposed to single and combined microplastics, polycyclic aromatic hydrocarbons, and their mixture

•Low molecular weight PAH was not detected in PAH-loaded MP (MPC) and PAH in combination with virgin MP (PAH+MP) treatments.•The PAH concentration from MPC and PAH+MP was similar.•The virgin MP, PAH, MPC, and PAH+MP was able to cause muscle glycogen depletion.•The activity of v-type H+ ATPase and pl...

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