Energetic Carrying Capacity of Submersed Aquatic Vegetation in Semi-Permanent Wetlands Important to Waterfowl in the Upper Midwest

Wetlands ◽  
2019 ◽  
Vol 40 (3) ◽  
pp. 491-501 ◽  
Author(s):  
Margaret C. Gross ◽  
Joseph D. Lancaster ◽  
John W. Simpson ◽  
Brendan T. Shirkey ◽  
Sarah E. McClain ◽  
...  
2006 ◽  
Vol 29 (6) ◽  
pp. 943-953 ◽  
Author(s):  
Thomas K. Frazer ◽  
Sky K. Notestein ◽  
Charles A. Jacoby ◽  
Chanda Jones Littles ◽  
Stephanie R. Keller ◽  
...  

2019 ◽  
Vol 76 (12) ◽  
pp. 2396-2407
Author(s):  
Lauren E. Bortolotti ◽  
Vincent L. St. Louis ◽  
Rolf D. Vinebrooke

Elucidating drivers of aquatic ecosystem metabolism is key to forecasting how inland waters will respond to anthropogenic changes. We quantified gross primary production (GPP), respiration (ER), and net ecosystem production (NEP) in a natural and two restored prairie wetlands (one “older” and one “recently” restored) and identified drivers of temporal variation. GPP and ER were highest in the older restored wetland, followed by the natural and recently restored sites. The natural wetland was the only net autotrophic site. Metabolic differences could not be definitively tied to restoration history, but were consistent with previous studies of restored wetlands. Wetlands showed similar metabolic responses to abiotic variables (photosynthetically active radiation, wind speed, temperature), but differed in the direct and interactive influences of biotic factors (submersed aquatic vegetation, phytoplankton). Drivers and patterns of metabolism suggested the importance of light over nutrient limitation and the dominance of autochthonous production. Such similarity in ecosystem metabolism between prairie wetlands and shallow lakes highlights the need for a unifying metabolic theory for small and productive aquatic ecosystems.


Author(s):  
Robert J. Orth ◽  
William C. Dennison ◽  
Cassie Gurbisz ◽  
Michael Hannam ◽  
Jeni Keisman ◽  
...  

Abstract Aerial surveys of coastal habitats can uniquely inform the science and management of shallow, coastal zones, and when repeated annually, they reveal changes that are otherwise difficult to assess from ground-based surveys. This paper reviews the utility of a long-term (1984–present) annual aerial monitoring program for submersed aquatic vegetation (SAV) in Chesapeake Bay, its tidal tributaries, and nearby Atlantic coastal bays, USA. We present a series of applications that highlight the program’s importance in assessing anthropogenic impacts, gauging water quality status and trends, establishing and evaluating restoration goals, and understanding the impact of commercial fishing practices on benthic habitats. These examples demonstrate how periodically quantifying coverage of this important foundational habitat answers basic research questions locally, as well as globally, and provides essential information to resource managers. New technologies are enabling more frequent and accurate aerial surveys at greater spatial resolution and lower cost. These advances will support efforts to extend the applications described here to similar issues in other areas.


2010 ◽  
Vol 9 (3) ◽  
pp. 477-486 ◽  
Author(s):  
Michael A. Poirrier ◽  
Kathy Burt-Utley ◽  
John F. Utley ◽  
Elizabeth A. Spalding

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