title: Survival and Growth of the Marine Polychaete, Neanthes arenaceodentata, Following Laboratory Exposure to Copper-Spiked Sediment.
abstract: Juvenile marine polychaetes, Neanthes arenaceodentata, were exposed for 28 days to copper (Cu)-spiked sediment at six concentrations ranging from 48.3 to 2380 mg Cu/kg dry sediment, plus control. Survival was reduced (p ≤ 0.05) at concentrations ≥1190 mg Cu/kg. Growth was inhibited at Cu concentrations ≥506 mg Cu/kg. Dose-response relationships yielded LC10 and LC50 estimates of 514 and 1230 mg Cu/kg, respectively. The growth effect EC50 estimate was 409 mg Cu/kg. Ranges for the no observable effect concentration and lowest observable effect concentration were 506-1190 mg Cu/kg for survival, and 230-506 mg Cu/kg for growth. Pore water concentrations of Cu were 38.7-65.8 µg Cu/L in exposures where toxic effects were observed, compared to a range of 15.1-22.4 µg Cu/L in exposures where significant effects were not evident. The results of the study were compared with empirical and mechanistic sediment quality guidelines for the protection of benthic organisms.
authors.affiliation: ABC Laboratories, Columbia, MO, 65202, USA.|SFA Toxicology and Environmental Services, Boxford, MA, 01921, USA.
authors.forename: Timothy J
authors.initials: TJ
authors.lastname: Ward
authors.affiliation: ABC Laboratories, Columbia, MO, 65202, USA.|SynTech Research, Stilwell, KS, 66085, USA.
authors.forename: Karin E
authors.initials: KE
authors.lastname: Gaertner
authors.affiliation: Copper Development Association, Webster, NY, 14580, USA.|Gorsuch Environmental Management Services, Webster, NY, 14580, USA.
authors.forename: Joseph W
authors.initials: JW
authors.lastname: Gorsuch
authors.affiliation: Environmental Research and Information Analysts, Dubuque, IA, 52001, USA. dcall@enviro-analysts.com.
authors.forename: Daniel J
authors.initials: DJ
authors.lastname: Call
mesh_terms: D000818:Animals; D003300:Copper / Q000032:analysis / Q000633:toxicity*; D004784:Environmental Monitoring; D019015:Geologic Sediments / Q000737:chemistry*; D011077:Polychaeta / Q000187:drug effects* / Q000502:physiology; D012989:Soil Pollutants / Q000032:analysis / Q000633:toxicity*; D018675:Toxicity Tests
chemical_list: D012989:Soil Pollutants; D003300:Copper
keywords: Chronic toxicity; Copper; Neanthes arenaceodentata; Sediment