Abstract
Abstract Ditches, creeks, and adjacent estuarine waters of three coastal marshes located at North River and Jarrett Bay, Carteret County, North Carolina were studied between March 1971–March 1972. Irregularly flooded Juncus romerianus (Black Needle Rush) vegetation dominated the marshes. Winds influenced flooding and, during one hurricane, distribution of large vegetation mats on the marshes. Recording tide gauges at North River and Jarrett Bay, referenced to marsh surfaces, documented tidal flooding of the marshes. In a comparison study these recording tide gauges documented flooding of mosquito breeding sites in a manner never previously observed in North Carolina. Ditches produced large quantities of fishes and invertebrates as did creek and estuary habitats. Spot and blue crabs were most abundant and weighed the most at each site. Wind tides and hurricanes influenced flooding, salinities and vegetation fragments that transferred to the estuary. Irregularly flooded marshes, both ditched and unditched, are integral and important components of the estuary.
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