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The Long Island Sound Habitat Restoration Initiative
The Initiative has set three broad goals:
- Restore the ecological functions of degraded and lost habitats;
- Restore at least 2000 acres and 100 river miles of natural habitats over
the next 10 years;
- Use partnerships to accomplish the restoration objectives and to leverage
limited state, local, and federal funds.
What Kinds Of Habitats Are Included?
Sites proposed for restoration fall into twelve habitat types. All of these
habitats are necessary to maintain fish and wildlife populations in and around
Long Island Sound.
- Tidal Wetlands (TW) are the transitional zone between the land and
aquatic systems. Healthy wetlands help trap sediments, store flood waters,
and reduce wave energy during storms. In addition, two thirds of all marine
species depend on tidal wetlands for a portion of their life cycle;
- Freshwater Wetlands (FW) are the transitional zone between the land
and water. These wetlands aid in groundwater recharge and store flood waters.
They are also critical habitat to many rare plant and animal species;
- Beaches and Dunes (BD) are the transitional sandy shoreline area
between the land and the Sound. Dunes can protect adjacent low-lying properties
from flooding. Many rare plants and animals occur on this habitat complex,
such as prickly-pear cactus, golden-aster, beach heather, Piping Plover, and
Horned Lark;
- Coastal Grasslands (GL) are open glacial outwash plains dominated
by tall grasses like little bluestem and switchgrass. They often have diverse
wildflower communities as well. These areas are critical habitat for many
rare and endangered species like the grasshopper sparrow and regal fritillary
butterfly. Grasslands are also important to birds of prey like the short-eared
owl;
- Intertidal Flats (IF) are shallow areas of bays and harbors that
lay between the spring high and low tide marks. The sediments may be muddy
to sandy and support important species like juvenile flounder, clams, and
crabs;
- Cliffs and Bluffs (CB) are steep coastal slopes of glacial sands
and till created through long-term wave erosion and sea-level rise. Rare plant
communities, such as New York's dwarf beech forest, may be found here;
- Riverine Migratory Corridors (RMC) are river systems that drain to
the Sound. Migratory species like Atlantic salmon, shad, and herring use these
rivers to travel to fresh waters miles away from Long Island Sound to spawn.
Recreational and commercial fisheries benefit when river corridors remain
healthy and passable to migratory fish;
- Coastal and Island Forests (F) in the project area may be dominated
by species such as maple, oak, cedar, pine, and beech. Animal which may use
this habitat include owls, eagles, and osprey. Forest stands on islands are
of particular importance to nesting colonial water birds like egrets and herons
because they are relatively free of predators. Forests provide shade and oxygen,
and help influence the local climate;
- Rocky Intertidal Zones (RI) are areas of exposed rock, either naturally
eroded bedrock or man-made structures like jetties, characterized by attached
species such as barnacles, algae, and mussels. These zones fall between extreme
high and low tides, which results in frequent exposure of the plant and animal
residents to the air. The species which attach themselves to this habitat
help filter nutrients from the water, and are a food source for other marine
species;
- Shellfish Reefs (SR) are formed by clusters of oysters and blue mussels
in protected bays. The shellfish are able to filter out much of the algae
and particulate matter in the water column, improving water clarity;
- Submerged Aquatic Vegetation (SAV) beds are comprised of rooted plants
like eelgrass and widgeon grass which grow on shallow bay bottoms below the
spring low tide mark. These grassy beds provide vital refuge for juvenile
fish and lobsters. The plants also trap sediments and use nitrogen from the
water column, improving water quality.
- Estuarine Embayments (EE) are confined areas of the Sound with narrow
inlets and significant freshwater inflow. These areas are important nurseries
for finfish and concentration sites for wildlife. The best bay scallop production
occurs in estuarine embayments.
| Guidance: The habitats at this site have more in common with those
of northwest Europe than in the Bay of Mexico and the east coast of Florida.
The extent of the information in this area for habitat restoration is substantial
and summaries of the projects covering restoration of several of the habitats
can be found on http://www.epa.gov/region01/eco/lis/index.htm.
An important point here is the extent to which the public are encouraged
to recognise the value of these habitats. These values are briefly summarised
for each habitat above. |
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