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| Plate 5.--Classification: SYSTEM Marine, SUBSYSTEM Intertidal, CLASS Unconsolidated Shore, SUBCLASS Sand, WATER REGIMES Regularly Flooded (seaward from the woman to the breaking waves) and Irregularly Flooded (landward from the woman to the base of the sand dunes), WATER CHEMISTRY Euhaline. Lines of wrack (dead Fucus spp., Ascophyllum nodosum, and Zostera marina) on the beach mark the landward limit of various high tides during the past several days. The photo was taken at low tide. (Parker River National Wildlife Refuge, Essex County, Massachusetts; September 1985; Photo by F. C. Golet) |
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| Plate 6.--Classification: SYSTEM Marine, SUBSYSTEM Intertidal, CLASS Unconsolidated Shore, SUBCLASS Sand, WATER REGIMES Regularly Flooded (lower two-thirds of beach) and Irregularly Flooded (upper one-third of beach near base of cliffs), WATER CHEMISTRY Euhaline. (Point Reyes National Seashore, Marin County, California; August 1975; Photo by V. Carter) |
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| Plate 7.--Classification: SYSTEM Estuarine, SUBSYSTEM Subtidal, CLASS Unconsolidated Bottom, SUBCLASS Sand, WATER REGIME Subtidal, WATER CHEMISTRY Mixohaline. An irregularly flooded persistent-emergent wetland dominated by saltmarsh cordgrass (Spartina alterniflora) and saltmeadow cordgrass (Spartina patens) is shown in the right background (Washington County, Rhode Island; July 1977; Photo by F. C. Golet) |
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| Plate 8.--Classification: SYSTEM Estuarine, SUBSYSTEM Subtidal, CLASS Unconsolidated Bottom, SUBCLASS Mud, WATER REGIME Subtidal, WATER CHEMISTRY Mixohaline. This site lies within the Fjord Biogeographic Province. Glacier-mantled mountains plunge steeply into water more than 180 m (600 ft) deep. (Lynn Canal, Haines Borough, Alaska; June 1985; Photo by F. C. Golet) |