Coastal and Wetland Ecosystems

Coastal and Wetland Ecosystems - Kimberly Hargraves BIO 350...

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Kimberly Hargraves BIO 350 Lab # 4 10-31-10 Coastal and Wetland Ecosystems Life on sand is impossible because it provides no surface for attachment of seaweeds and provides no protection. Most of the animals that live in sand are burrowers. Sandy beaches consists of epifauna and infauna zonation. Epifauna consist of organisms living on the sediment and infauna are organism living in the sediment (Smith, 544). To discover this zonation, one must dig in the sand. Sand colored crabs occupy the upper beach or supralittoral. The littoral is where starfish can be found. On rocky shores, life consists of a wide variety of animals. There is seaweeds present that are in constant motion from the waves. In the supralittoral zone in rocky shores is terrestrial areas. It is adjacent to the supralittoral fringe, that has a black layer of cyanobacteria on the rock. Snails and periwinkles could be found here. The littoral zone on rocky shore is the area that is covered and uncovered by daily tides. Some of the animals that this area consists of are oysters and blue mussels (Smith, 543). The structure of a salt marsh is dictated by height, tides and salinity. Cordgrass
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This note was uploaded on 04/18/2011 for the course BIOLOGY 450 taught by Professor Dr.zhu during the Fall '10 term at Fayetteville State University.

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Coastal and Wetland Ecosystems - Kimberly Hargraves BIO 350...

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