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U.S. Geological Survey Open-File Report 2004-1350

Table 5.2 - Summary of Chesapeake Bay Foraminiferal Ecology

Parameter/species Ammobaculites crassus Elphidium selseyense Ammonia parkinsoniana* Ammonia parkinsoniana forma typica Miliammina fusca
Main habitat Shoals Deep channels Marsh & channels Marsh & channels Marshes and shoals
Depth (m) 2.2-9 3.1-26 <20 <20 <10
Salinity Range (ppt) 0.5-15 12 to 33 6 to 23 (9-20) >14 0-28
Substrate type Mud Sand and mud Silty sand   Silty clay
Temperature (°C) 1 to 28 3 to 24 0 to 30 0 to 30 0-20
Suspended Sediment (µg/l) 8.3-177 10-35.6 No data No data No data
DO concentration (ml/l) 0.1-7.0 4.2-8.0 0- >10 (< 3)   No data
Data from Ellison and Nichols (1970, 1976), Buzas (1969, 1974) and 6/98 sampling (see Table 5.2)
* prefered salinity and DO ranges in parentheses
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