Chemical extractions of heavy metals in sediments and metal uptake by Palaemonetes pugio and mercenaria merenaria. Final report
Technical Report
·
OSTI ID:5683560
Sediments from four sites in the Hampton Roads Harbor and Elizabeth River system were subjected to solid-phase bioassays using Palaemonetes pugio (grass shrimp) and Mercenaria mercenaria (clams). A reference sediment from an offhsore potential disposal site was included. Metal levels in both organisms after exposure to the sediments varied little between sites. There was essentially no difference in metal uptake between organisms exposed to the test sediments and to the reference sediment. Based on these results, all of the test sites would be acceptable for ocean disposal with respect to the metals tested. Metal concentrations in Palaemonetes were generally greater than in Merceneria. Since there was no significant difference in the concentrations in tissue for either organism, there was no correlation of metal uptake with sediment extraction method. Out of four sites and seven metals studied with two test organisms, only four instances of bioaccumulation occurred. Using data from sediment extractable metals and metal/Fe ratios, Palaemonetes were enriched with respect to the sediment in chromium, copper, nickel, lead, and zinc; Mecenaria were enriched in lead and zinc.
- Research Organization:
- Old Dominion Univ., Norfolk, VA (USA). Applied Marine Research Lab.
- OSTI ID:
- 5683560
- Report Number(s):
- AD-A-165202/3/XAB
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
560304* -- Chemicals Metabolism & Toxicology-- Invertebrates-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ANIMALS
AQUATIC ORGANISMS
ARTHROPODS
BIOASSAY
BIOLOGICAL ACCUMULATION
CHROMIUM
CLAMS
COPPER
CRUSTACEANS
DECAPODS
ELEMENTS
EXTRACTION
INVERTEBRATES
IRON
LEAD
MANAGEMENT
METALS
MOLLUSCS
NICKEL
SEDIMENTS
SEPARATION PROCESSES
SHRIMP
TOXICITY
TRANSITION ELEMENTS
UPTAKE
WASTE DISPOSAL
WASTE MANAGEMENT
ZINC
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ANIMALS
AQUATIC ORGANISMS
ARTHROPODS
BIOASSAY
BIOLOGICAL ACCUMULATION
CHROMIUM
CLAMS
COPPER
CRUSTACEANS
DECAPODS
ELEMENTS
EXTRACTION
INVERTEBRATES
IRON
LEAD
MANAGEMENT
METALS
MOLLUSCS
NICKEL
SEDIMENTS
SEPARATION PROCESSES
SHRIMP
TOXICITY
TRANSITION ELEMENTS
UPTAKE
WASTE DISPOSAL
WASTE MANAGEMENT
ZINC