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Marine Fisheries

Marinas, Docks and Piers

Habitats Affected: Water column, shell bottom, SAV, wetlands, soft bottom


  • Shading by boats and structures reduces light availability for SAV, and to a lesser extent wetlands. Reduced light can cause mortality of SAV or prevent its expansion in otherwise suitable areas.
  • Dredging of marina basins reduces productivity of the soft bottom community.
  • Dredged basins alter circulation patterns and can result in water quality degradation and low oxygen events, which stress or kill fish.
  • Fuel, bottom paint, and other toxins found at marinas and docking facilities can impact recruitment and survival of oyster larvae and degrade water quality.
  • Biological problems associated with docks and piers can be minor individually but can have significant cumulative impacts on coastal fish habitat.

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

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