title: Microplastic ingestion reduces energy intake in the clam Atactodea striata.
abstract: The effects of microplastic concentrations (10itemsl-1and 1000itemsl-1) on the physiological responses of Atactodea striata (clearance rate, absorption efficiency, respiration rate) were investigated. The fates of ingested microplastics and the efficiency of depuration in removing ingested microplastics were also studied. A. striata ingested microplastics and the clearance rate was reduced at high concentration of microplastics. Since the respiration rate and absorption efficiency remained unchanged in exposed A. striata, reduction in the clearance rate would reduce the energy intake. Ingestion and retention of microplastics in the body were further limited by the production of pseudofaeces and faeces, and depuration in clean water, resulting in a very small amount of microplastics stored in the body of the clam.
authors.affiliation: Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong.
authors.forename: X-Y
authors.initials: XY
authors.lastname: Xu
authors.affiliation: Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong.
authors.forename: W T
authors.initials: WT
authors.lastname: Lee
authors.affiliation: Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong.
authors.forename: A K Y
authors.initials: AKY
authors.lastname: Chan
authors.affiliation: Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong.
authors.forename: H S
authors.initials: HS
authors.lastname: Lo
authors.affiliation: Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong; State Key Laboratory in Marine Pollution, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong.
authors.forename: P K S
authors.initials: PKS
authors.lastname: Shin
authors.affiliation: Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong; State Key Laboratory in Marine Pollution, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong. Electronic address: bhsgche@cityu.edu.hk.
authors.forename: S G
authors.initials: SG
authors.lastname: Cheung
mesh_terms: D000818:Animals; D049872:Bivalvia / Q000187:drug effects*; D019069:Cell Respiration; D002149:Energy Intake / Q000187:drug effects*; D005243:Feces / Q000737:chemistry; D005247:Feeding Behavior / Q000187:drug effects*; D010969:Plastics / Q000032:analysis / Q000378:metabolism* / Q000633:toxicity; D017747:Seafood; D014874:Water Pollutants, Chemical / Q000032:analysis / Q000378:metabolism* / Q000633:toxicity
chemical_list: D010969:Plastics; D014874:Water Pollutants, Chemical
keywords: Bivalves; Clearance rate; Microplastics; Physiological responses