Impact of particulate pollutant metals on larval and adult bivalve molluscs

Technical Report · Mon Oct 25 00:00:00 EDT 1982

OSTI ID:5848228

Gilbert, T R; Robinson, W E ^[1]; Morse, M P ^[2]

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1. New England Aquarium Corp., Boston, MA (USA)
2. Northeastern Univ., Boston, MA (USA). Marine Science Lab.

Our investigations of the effects of pollutants on bivalve molluscs have continued with studies with in the following areas: bioaccumulation of trace metals in adult sea scallops exposed to dissolved and particulate forms of the metals, SEM/EDXA studies of phosphoritic concretions in the kidneys of adult sea scallops (Placopecten magellanicus), documentation of the normal embryonic and larval development, including shell formation, in surf clams (Spisula solidissima), evaluation of the toxicity of dissolved silver to the gametes and larvae of surf clams at several stages of development, and examination of the effects of turbid suspensions on the feeding efficiency of larval Mercenaria mercenaria. The overall goal of our work is twofold. First, we are striving to gain an understanding of the pathways by which metals are transported within bivalve molluscs. The production of metallothioneins and metal-rich inorganic concretions have been documented for a number of bivalves. The ways in which of metal-rich matrices in membrane-limited vesicles as an intermediate step, is one area of investigation. Second, we are examining the relative sensitivities of the gamete and of early life stages of these organisms to stresses induced by exposure to energy-related pollutants. 46 refs., 12 figs., 8 tabs.

• Research Organization: New England Aquarium Corp., Boston, MA (USA)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (USA)
• DOE Contract Number: AC02-77EV04580
• OSTI ID: 5848228
• Report Number(s): DOE/EV/04580-4; ON: DE91012176
• Country of Publication: United States
• Language: English

Related Subjects

63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
54 ENVIRONMENTAL SCIENCES
METALS
BIOLOGICAL ACCUMULATION
MOLLUSCS
BIOLOGICAL PATHWAYS
SILVER
TOXICITY
ALGAE
ECOLOGICAL CONCENTRATION
ENVIRONMENTAL EXPOSURE
PROGRESS REPORT
TERATOGENESIS
TRACE AMOUNTS
TURBIDITY
ANIMALS
AQUATIC ORGANISMS
DOCUMENT TYPES
ELEMENTS
INVERTEBRATES
PLANTS
TRANSITION ELEMENTS
560300* - Chemicals Metabolism & Toxicology
540320 - Environment
Aquatic- Chemicals Monitoring & Transport- (1990-)