Pharmaceuticals and Alkylphenols in Transplanted Pacific Oysters (crassostrea Gigas): Spatial Variation and Growth Effects

• Published in: Marine Pollution Bulletin
• Main Authors: Ehrhart, Amy L, Granek, Elise F
• Format: Text
• Language: unknown
• Published: PDXScholar 2021
• Subjects: Environmental Sciences; Pacific; Crassostrea gigas
• Online Access: https://pdxscholar.library.pdx.edu/esm_fac/333; https://doi.org/10.1016/j.marpolbul.2021.112584

Pharmaceuticals and personal care products in wastewater discharge can be stressors to estuarine species. We transplanted juvenile Pacific oysters at varying distances within sites near wastewater treatment plant outfalls or oyster aquaculture control sites to assess small scale spatial variation in contaminant uptake and oyster condition. Oysters were transplanted to sites in Coos and Netarts Bays, Oregon and Grays Harbor, Washington, then collected after 9 and 12 months. Two pharmaceuticals (miconazole and virginiamycin M1) were detected in spring samples and four alkylphenols (NP1EO, NP2EO, NP and OP) were detected in summer samples, with more frequent detections at wastewater sites. Contaminant concentrations were similar across site types, indicating that even in sparsely populated coastal areas (