Accession Number : ADA292678

Title :   Environmental Effects of Dredging: Construction of a Submerged Gravel Bar Habitat Using Dredged Material.

Descriptive Note : Technical notes,

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

Personal Author(s) : Miller, Andrew C.

PDF Url : ADA292678

Report Date : FEB 1988

Pagination or Media Count : 10

Abstract : This note provides information on techniques, materials, and equipment necessary to construct submerged aquatic habitats in large waterways using coarse-grained sediments. Gravel bars are notable natural features of rivers and streams that have not been altered by water resource development. Gravel and cobble- sized materials provide points of attachment and anchorage for aquatic organisms such as insect larvae, snails, and worms (Hynes 1970). Coarse-grained particulates stabilize fine substrate and allow colonization by long-lived invertebrates such as freshwater mussels. Particle size distribution, degree of embeddedness, and presence of attached organic matter and plants determine the characteristics of invertebrate communities in flowing water systems (Cummins and Lauff 1968, Brusven and Prather 1974, Walton 1978).

Descriptors :   *GRAVEL, *HABITATS, *DREDGED MATERIALS, *AQUATIC ANIMALS, WATER FLOW, COMMUNITIES, DISTRIBUTION, WATER, PARTICLE SIZE, GRAIN SIZE, SUBSTRATES, ENVIRONMENTAL IMPACT, FRESH WATER, ORGANIC MATERIALS, RESOURCES, PARTICULATES, RODS, RIVERS, WATER RESOURCES, MUSSELS, INVERTEBRATES, DREDGING, SEDIMENTS, LARVAE, WATERWAYS, WORMS, UNDERWATER, ORGANS(ANATOMY), INSECTS, SNAILS.

Subject Categories : Anatomy and Physiology
      Ecology
      Civil Engineering
      Solid Wastes Pollution and Control

Distribution Statement : APPROVED FOR PUBLIC RELEASE