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N.C. Department of Environment and Natural Resources

NC Department of Environment and Natural Resources
Marine Fisheries - Channelization / Ditching

Marine Fisheries

Channelization / Ditching

Habitats Affected: Wetlands, water column, soft bottom

Common Sources: Flood control, agriculture, urban and suburban development, forestry

Impacts:

  • Reduction in wetland habitat.
  • Loss of wetlands or conversion to uplands reduces system’s ability to filter pollutants and regulate water flows.
  • Loss of riparian vegetation increases loading of non-point source pollutants.
  • Filling and channelization reduces fish access to wetlands.
  • Channelization increases erosion of stream banks and turbidity in the water.
  • Waters adjacent to channelized streams and ditched wetlands support lower abundance and diversity of fish.

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N.C. Division of Marine Fisheries • 3441 Arendell Street • Morehead City, NC 28557 • (252) 726-7021 or 1-800-682-2632

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