Real-Time Measurements of Sediment Modification by Large Macrofauna

Abstract

Marine sedimentary infauna alter acoustic properties of sediments by creating voids and air bubbles, manipulating grain and shell distributions, and creating surface roughness elements. To date there is little information on the rates of change of these sediment properties as a result of infaunal activities. Recent studies suggest that organisms move locally in response to transient ecological and geochemical events. Such movements will create significant change in sediment physical structure on short spatial and temporal scales.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Sep 30, 2003
Accession Number
ADA629688

Entities

People

  • David S Wethey
  • Roberta L. Marinelli
  • Sarah A. Woodin

Organizations

  • University of Maryland

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Acoustic Properties
  • Acoustic Signals
  • Amides
  • Amino Acids
  • Amplitude
  • Availability
  • Biological Laboratories
  • Biological Sciences
  • Chemistry
  • Ecology
  • Marine Biology
  • Measurement
  • Physical Properties
  • Roughness
  • Sediments
  • South Carolina
  • Surface Roughness

Fields of Study

  • Environmental science

Readers

  • Aquatic Ecology
  • Geotechnical Engineering.
  • Nanocomposite Materials Science