title: Temporal dynamics of South End tidal creek (Sapelo Island, Georgia) bacterial communities.
abstract: Bacterial community dynamics in South End tidal creek, Sapelo Island, GA, were studied over a 74-h, five-tidal-cycle period. Observations were made hourly for the first consecutive 24 hours, every 3 hours on the second day, and every 6 hours on the third day. Tide most strongly influenced bacterial community composition (high-tide versus low-tide community analysis of similarities, R = 0.41, P < 0.03). Dissolved oxygen concentration and conductivity were important proximate drivers. However, after accounting for tide and environmental variables colinear with tide, cumulative time became more important in describing community variation. In-stream physical processes, including particulate suspension and sedimentation, may explain tide-associated trends in the bacterial community composition observed.
authors.affiliation: Department of Civil and Environmental Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA.
authors.forename: Emily
authors.initials: E
authors.lastname: Kara
authors.forename: Ashley
authors.initials: A
authors.lastname: Shade
mesh_terms: D001419:Bacteria / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification*; D044822:Biodiversity; D004553:Electric Conductivity; D005845:Georgia; D010100:Oxygen / Q000032:analysis; D012988:Soil Microbiology; D013997:Time Factors; D014867:Water / Q000032:analysis; D014871:Water Microbiology
chemical_list: D014867:Water; D010100:Oxygen