The Effects of Tropical Storm Agnes on the Chesapeake Bay Estuarine System

28 June abundance August average axis Bay km Bay mouth bottom salinity Chesapeake Bay Chester River chlorophyll coliform concentrations Creek decrease depth discharge dissolved oxygen Distance from Mouth distribution downstream drainage basin dredge effects of Agnes EFFECTS OF TROPICAL estimated estuary Figure fish flood water flow following Agnes halocline hard clams heterotrophic impact of Agnes increase James River July 72 June larvae layer levels locations loss low salinity lower Bay lower Chesapeake Bay Maryland METERS Mile months mortality Mouth of Bay nitrogen normal numbers nutrient observed occurred oysters particulate Patuxent River peak period phosphorus phytoplankton populations post-Agnes pre-Agnes rainfall range Rappahannock River Rhode River salinity samples shellfish slack water species stations summer surface salinity surface waters survey suspended sediment Susquehanna River Table temperature tidal tributaries Tropical Storm Agnes upper Bay upstream values vertical Virginia West Rivers York River zooplankton Zostera