Accession Number : ADA292608

Title :   Environmental Effects of Dredging. A Chronic Sublethal Sediment Bioassay with the Marine Polychaete Nereis (Neanthes) Arenaceodentata.

Corporate Author : ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS ENVIRONMENTAL LAB

Personal Author(s) : Dillon, Tom M. ; Moore, David W. ; Bridges, Todd S.

PDF Url : ADA292608

Report Date : JAN 1995

Pagination or Media Count : 14

Abstract : This note provides a general overview of a new 28-day chronic sublethal sediment bioassay designed for the regulatory evaluation of dredged material. The bioassay uses survival and growth rate endpoints with the polychaete Nereis (Neanthes) arenaceodentata. The primary technical reference for this new bioassay is Dillon, Moore, and Reish (in press), upon which this overview is based. Sediment bioassays are used to assess the aggregate toxicity of sediment associated anthropogenic chemicals. Historically, these bioassays have measured survival of highly sensitive species following acute exposures (10 days). A new generation of sediment bioassays is being developed in which the subtle, sublethal response of test species is measured following chronic sediment exposures (Dillon 1993). pg1. JMD

Descriptors :   *TOXICITY, *DREDGING, *SUBLETHAL DOSAGE, TEST AND EVALUATION, SURVIVAL(GENERAL), ENVIRONMENTAL IMPACT, AGGREGATES(MATERIALS), RESPONSE, BACKGROUND, DREDGED MATERIALS, SEDIMENTS, BIOASSAY.

Subject Categories : Toxicology
      Civil Engineering
      Water Pollution and Control

Distribution Statement : APPROVED FOR PUBLIC RELEASE