scholarly journals Nutrient versus consumer control of community structure in a Chesapeake Bay eelgrass habitat

2007 ◽  
Vol 348 ◽  
pp. 71-83 ◽  
Author(s):  
JG Douglass ◽  
JE Duffy ◽  
AC Spivak ◽  
JP Richardson
Keyword(s):  
Community Structure ◽  
Chesapeake Bay ◽  
Consumer Control ◽  
Eelgrass Habitat

Algal turf scrubber (ATS) floways on the Great Wicomico River, Chesapeake Bay: productivity, algal community structure, substrate and chemistry1

2013 ◽  
Vol 49 (3) ◽  
pp. 489-501 ◽  
Author(s):  
Walter H. Adey ◽  
H. Dail Laughinghouse ◽  
John B. Miller ◽  
Lee-Ann C. Hayek ◽  
Jesse G. Thompson ◽  
...  
Keyword(s):  
Community Structure ◽  
Chesapeake Bay ◽  
Algal Community ◽  
Algal Turf ◽  
Algal Turf Scrubber

Broad-scale effects of hypoxia on benthic community structure in Chesapeake Bay, USA

2009 ◽  
Vol 381 ◽  
pp. S4-S12 ◽  
Author(s):  
Rochelle D. Seitz ◽  
Daniel M. Dauer ◽  
Roberto J. Llansó ◽  
W. Christopher Long
Keyword(s):  
Community Structure ◽  
Chesapeake Bay ◽  
Benthic Community ◽  
Scale Effects ◽  
Benthic Community Structure ◽  
Broad Scale

scholarly journals Population Dynamics of Chesapeake Bay Virioplankton: Total-Community Analysis by Pulsed-Field Gel Electrophoresis

1999 ◽  
Vol 65 (1) ◽  
pp. 231-240 ◽  
Author(s):  
K. Eric Wommack ◽  
Jacques Ravel ◽  
Russell T. Hill ◽  
Jongsik Chun ◽  
Rita R. Colwell
Keyword(s):  
Population Dynamics ◽  
Community Structure ◽  
Viral Infection ◽  
Chesapeake Bay ◽  
Gel Electrophoresis ◽  
Clonal Diversity ◽  
Pulsed Field Gel Electrophoresis ◽  
Community Diversity ◽  
Pulsed Field ◽  
The Impact

ABSTRACT Recognition of viruses as the most abundant component of aquatic microbial communities has stimulated investigations of the impact of viruses on bacterio- and phytoplankton host communities. From results of field studies to date, it is concluded that in most aquatic environments, a reduction in the number of bacteria on a daily basis is caused by viral infection. However, the modest amount of in situ virus-mediated mortality may be less significant than viral infection serving to maintain clonal diversity in the host communities directly, through gene transmission (i.e., transduction), and indirectly, by elimination of numerically dominant host species. If the latter mechanism for controlling community diversity prevails, then the overall structure of aquatic viral communities would be expected to change as well over short seasonal and spatial scales. To determine whether this occurs, pulsed-field gel electrophoresis (PFGE) was used to monitor the population dynamics of Chesapeake Bay virioplankton for an annual cycle (1 year). Virioplankton in water samples collected at six stations along a transect running the length of the bay were concentrated 100-fold by ultrafiltration. Viruses were further concentrated by ultracentrifugation, and the concentrated samples were embedded in agarose. PFGE analysis of virus DNA in the agarose plugs yielded several distinct bands, ranging from 50 to 300 kb. Principal-component and cluster analyses of the virus PFGE fingerprints indicated that changes in virioplankton community structure were correlated with time, geographical location, and extent of water column stratification. From the results of this study, it is concluded that, based on the dynamic nature of the Chesapeake Bay virioplankton community structure, the clonal diversity of bacterio- and phytoplankton host communities is an important component of the virus community.

Stand Age is Associated with Clonal Diversity, but Not Vigor, Community Structure, or Insect Herbivory in Chesapeake Bay Phragmites australis

Wetlands ◽  
2015 ◽  
Vol 35 (5) ◽  
pp. 877-888 ◽  
Author(s):  
Eric L. G. Hazelton ◽  
Melissa K. McCormick ◽  
Matthew Sievers ◽  
Karin M. Kettenring ◽  
Dennis F. Whigham
Keyword(s):  
Community Structure ◽  
Chesapeake Bay ◽  
Phragmites Australis ◽  
Insect Herbivory ◽  
Clonal Diversity ◽  
Stand Age

Phytoplankton production, biomass and community structure following a summer nutrient pulse in Chesapeake Bay

2005 ◽  
Vol 39 (2) ◽  
pp. 135-149 ◽  
Author(s):  
Christina L.J. Yeager ◽  
Lawrence W. Harding ◽  
Michael E. Mallonee
Keyword(s):  
Community Structure ◽  
Chesapeake Bay ◽  
Phytoplankton Production ◽  
Nutrient Pulse

Seasonal and interannual change in a Chesapeake Bay eelgrass community: Insights into biotic and abiotic control of community structure

2010 ◽  
Vol 55 (4) ◽  
pp. 1499-1520 ◽  
Author(s):  
James G. Douglass ◽  
James G. Douglass ◽  
Kristin E. France ◽  
Kristin E. France ◽  
J. Paul Richardson ◽  
...  
Keyword(s):  
Community Structure ◽  
Chesapeake Bay ◽  
Interannual Change ◽  
Abiotic Control
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