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Home , Brackish marsh, Coast, High marsh, Marsh, Salt marsh, Tidal marsh

North Atlantic Tidal Salt

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© Kathleen Strakosch Walz (New Jersey Natural Heritage Program)

Description: A complex of tidally influenced from the coastal on up the tidal of the Northern Atlantic Coastal Plain. This habitat includes , , and freshwater tidal marsh. A salt marsh profile features a low regularly flooded marsh dominated by salt marsh cordgrass; a higher irregularly flooded marsh dominated by saltmeadow cordgrass and saltgrass; low hypersaline pannes characterized by saltwort; and a salt scrub characterized by marsh elder, groundsel-, and switchgrass. Brackish areas support salt marsh cordgrass, giant cordgrass, narrowleaf cattail, and bulrush. Freshwater tidal areas include wild rice marshes, and forbs such as State Distribution: CT, DC, DE, MA, MD, ME, NH, NJ, water hemp, and rosemallow. NY, PA, RI, VA

Total Habitat Acreage: 920,107 Ecological Setting and Natural Processes: Percent Conserved: 45.2% The salt/brackish/oligohaline-freshwater gradient tracks the State State GAP 1&2 GAP 3 Unsecured degree to which intertidal flats are removed from the open State Habitat % Acreage (acres) (acres) (acres) . Brackish marshes can occur along upper edges of MD 27% 245,840 39,574 66,003 140,264 salt marshes and along tidal rivers. Freshwater tidal marshes NJ 25% 228,298 126,237 3,886 98,175 occur on the upper reaches of large rivers influenced by beyond the reach of the salt wedge. Marshes of VA 22% 204,148 32,632 55,758 115,758 lower levels are best developed in Chesapeake and DE 9% 85,398 16,761 25,547 43,090 Delaware Bays. MA 7% 67,163 11,057 16,240 39,867 NY 5% 49,268 6,189 3,152 39,927 Similar Habitat Types: CT 2% 18,538 2,751 4,088 11,699 These marshes are generally more extensive than those RI 1% 8,583 1,213 1,116 6,254 along the north of the coastal plain (Acadian Coastal NH 1% 7,214 601 1,155 5,458 Salt Marsh). They experience lunar , as opposed to the ME 0% 3,901 1,600 82 2,219 irregular wind-driven tides of the Atlantic Coastal Plain PA 0% 1,636 516 58 1,062 Embayed Region Freshwater and Brackish Marshes of DC 0% 120 0 3 117 southeast Virginia, and tend to be more productive than marshes there. Crosswalk to State Wildlife Action Plans: Crosswalk to State Name Examples: Tidal - Tidal (CT), Emergent Tidal Salt/Brackish Intertidal Marsh (CT), North Atlantic High/Low Salt Wetlands (DC), Freshwater Tidal Forested and Scrub-Shrub Marsh (DE), Estuarine Intertidal: Salt Marsh (MA), Tidal Wetlands (DE), Freshwater Tidal Marshes (DE), Mesohaline Marsh (MD), Saltmarsh (ME), Salt (MA), Tidal Marshes (MD), Estuarine Emergent Saltmarsh Marshes (NH), Salt Marsh Complex (NJ), High/Low Salt Marsh (ME), Salt Marshes (NH), Tidal salt marsh (NJ), Salt Marsh (NY), Freshwater Tidal Mixed (PA), Salt Marsh (NY), Wetlands - Emergent Estuarine (PA), Intertidal - (RI), High/Low Salt Marsh (VA), Intertidal (NH) Estuarine Intertidal Emergent Brackish Marsh (RI), Wetland Habitat - Emergent (VA) Places to Visit this Habitat: Habitat Patch Distribution Bombay Hook National Wildlife Refuge | DE Assateague National Seashore | MD 500,000 400,000 Edwin B. Forsythe National Wildlife Refuge | NJ 300,000 Fire Island National Seashore | NY 200,000 Chincoteague National Wildlife Refuge | VA Acres 100,000 0

Associated Species: Appendix lists scientific names 0 to 1 1 to 5 5 to 10 1000+ BIRDS: american oystercatcher, arctic , black skimmer, 10 to 100 black-crowned night-heron, clapper rail, , forster's 100 to 1000 tern, glossy ibis, great egret, -billed tern, little blue heron, Patch Size Classes marsh wren, northern harrier, osprey, royal tern, tricolored heron, The average patch size for this habitat is 11 acres and the largest single patch is willet, yellow-crowned night-heron 19,464 acres. This chart shows the proportion of the habitat that is in each patch- size class. MAMMALS: north american least shrew Age Class Distribution INSECTS: big bluet, Needham's skimmer, salt marsh skipper 80 60 PLANTS: american -blite (Suaeda calceoliformis), dwarf glasswort ( bigelovii), large marsh pink (Sabatia 40 dodecandra), salt reedgrass (), saltmarsh 20 bulrush (Schoenoplectus maritimus), saltmarsh false foxglove 0 (Agalinis maritima), sea pink (), seacoast Percent of Habitat angelica (Angelica lucida), seaside heliotrope (Heliotropium 1 to 20 20 to 40 40 to 60 60 to 80 curassavicum) 80 to 100100 to 140 Age (Years)

This chart shows the average age of associated with this habitat based on Inventory data. For non-forested systems or small the average age is Species of Concern (G1-G4): Appendix lists scientific names influenced by the surroundings. BIRDS: black rail, king rail, least tern, red knot, roseate tern, , seaside sparrow Predicted Habitat Loss to Development

HERPTILES: diamondback terrapin, loggerhead, rainbow snake 880,000 860,000 INSECTS: checkered white, maritime sunflower borer moth, 840,000 seaside goldenrod borer moth, spartina borer moth 820,000

Acreage 800,000 PLANTS: large salt marsh aster (Aster tenuifolius), Parker's 780,000 pipewort (Eriocaulon parkeri), roland's sea-blite (Suaeda 2010 2020 2030 2040 2050 2060 rolandii), salt marsh goosegrass (Puccinellia fasciculata), saltmarsh fleabane (Pluchea odorata), salt-marsh sedge ( Decade recta), saltmarsh spikerush (Eleocharis halophila), seabeach dock (Rumex pallidus), seabeach knotweed (Polygonum This chart shows the predicted loss of habitat over the next five decades (54,284 glaucum), sea-chickweed (Honckenya peploides), seaside alder acres) if loss continues at the same rate as 1990-2000. The average rate of loss is (Alnus maritima) 1,086 acres per year. Habitat Connectedness Index

40 30 20 10 0 Percent of Habitat

0 to 25 25 to 50 50 to 75 75 to 100 Degree of Fragmentation (0=Highly Fragmented & 100= Highly Connected)

This metric measures how connected or fragmented the directly surrounding (18 © Martin Rapp (New Jersey Natural Trust) square miles) the habitat is, this the chart shows the proportion of the habitat in each connectedness class.

North Atlantic Coastal Plain Tidal Salt Marsh http://nature.ly/HabitatGuide