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Natural Communities of St. Joseph Bay Aquatic Preserve Quick Topics
Composite substrate

Composite substrate

Natural Community Type # Acres Comments
Algal Bed

Unknown

Large populations of nondrift macro or micro algae.
Composite Substrate

Unknown

Consist of a combination of natural communities such as "beds" of algae and seagrasses.
Mollusk Reef

Unknown

Expansive concentrations of sessile mollusks occurring in intertidal and subtidal zones to a depth of 40 feet.
Octocoral Bed

Unknown

Non-sessile benthic and pelagic invertebrates and vertebrates (e.g., sponges, mollusks, tube worms, burrowing shrimp, crabs, isopods, amphipods, sand dollars, and fishes) are associated with Octocoral Beds.
Seagrass Bed

9669.00

Expansive stands of vascular plants that occur in subtidal (rarely intertidal) zones, in clear, coastal waters where wave energy is moderate.
Sponge Bed

Unknown

Dense populations of sessile invertebrates of the phylum Porifera, Class Demospongiae.
Tidal Marsh

762.58

Expanses of grasses, rushes and sedges along coastlines of low wave energy and river mouths.
Unconsolidated Substrate

Unknown

Expansive, relatively open areas of subtidal, intertidal, and supratidal zones which lack dense populations of sessile plant and animal species.
Mudflats

52.51

Categorized as an Unconsolidated Substrate. Mudflats are created by sediment that is deposited by the changing tides and Gulf of Mexico.
Salt marsh

Salt marsh

 

 

 

 

 

Last updated: April 06, 2015

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