Benthic Foraminiferal Communities of a Barrier-Lagoon System, Virginia, U.S.A.

Foraminifera have a fundamental role in the trophic structure of marine communities and may be used to assess primary stresses affecting environmental quality. In coastal barrier lagoons their distribution can provide a framework for future assessment of environmental quality. To establish a baseline for the barrier-lagoon system of the southern Delmarva Peninsula, 20 subenvironments were sampled and proved to contain 44 species of living benthic foraminifera. Densities of species were related to variations in substratum, salinity and organic-matter content. Not all of the 20 subenvironments could be recognised based on variations in foraminiferal community composition; only seven subenvironments were distinguished on the basis of the distribution of dominant living species. Foraminiferal community composition appeared to be closely tied to the natural variations of physical stresses produced by the interrelationship of landscape and flow dynamics.

[1]  S. Culver,et al.  The effects of anthropogenic habitat disturbance, habitat destruction, and global warming on shallow marine benthic foraminifera , 1995 .

[2]  Elisabeth Alve,et al.  BENTHIC FORAMINIFERAL RESPONSES TO ESTUARINE POLLUTION: A REVIEW , 1995 .

[3]  G. Oertel,et al.  Landscape Classification and Terminology for Marsh III Deficit Coastal Lagoons , 1994 .

[4]  S. Goldstein,et al.  Taphofacies implications of infaunal foraminiferal assemblages in a Georgia salt marsh, Sapelo Island , 1993 .

[5]  D. Scott,et al.  Morphological variations of benthic foraminiferal tests in response to changes in ecological parameters: a review , 1991, Journal of Paleontology.

[6]  C. F. Koch.  Prediction of sample size effects on the measured temporal and geographic distribution patterns of species , 1987, Paleobiology.

[7]  J. Lipps.  Biotic Interactions in Benthic Foraminifera , 1983 .

[8]  S. Culver,et al.  Distribution of Recent benthic foraminifera off the North American Atlantic coast , 1980 .

[9]  M. Buzas,et al.  Predators of foraminifera in the Indian River, Florida , 1979 .

[10]  M. Buzas.  Foraminifera as Prey for Benthic Deposit Feeders: Results of Predator Exclusion Experiments , 1978 .

[11]  Robert L. Folk,et al.  Petrology of Sedimentary Rocks , 1974 .

[12]  J. W. Valentine,et al.  THE ROLE OF FORAMINIFERA IN THE TROPHIC STRUCTURE OF MARINE COMMUNITIES , 1970 .

[13]  M. Buzas.  FORAMINIFERAL SPECIES DENSITIES AND ENVIRONMENTAL VARIABLES IN AN ESTUARY , 1969 .

[14]  H. Howe.  Use of soap in the preparation of samples for micropaleontologic study , 1941 .