Translator Disclaimer
1 June 2009 Factors Influencing Algal Biomass in Intermittently Connected, Subtropical Coastal Ponds
Carrie J. Miller, Stephen E. Davis III, Daniel L. Roelke, Hsiu-Ping Li, Matthew J. Driffill
Author Affiliations +
Abstract

Microalgae may contribute more to salt marsh productivity than realized, underscoring the importance of understanding algal dynamics in such systems. Benthic and planktonic chlorophyll-a (surrogate for total algal biomass), sediment ash-free dry weight, total suspended solids, salinity, and nutrients were examined in intermittently connected marsh ponds in the subtropical Guadalupe Estuary, Texas, USA to determine the effects of hydrologic connections on algal biomass in this system. From May 2005 to May 2006, several high water events resulting in surface water connections between ponds and nearby tidal creeks occurred, followed by disconnection and, at times, pond desiccation. During periods of disconnection, algal biomass was higher in both the benthos and the water column than during connection events when flushing occurred. Since connection events did not increase NOx, the primary source of dissolved inorganic nitrogen seemed to be nutrient cycling within the ponds. Data at the aggregated level, i.e., chlorophyll-a, indicated this system followed the flood pulse concept. During high water events, algal biomass may be exported to supplement the tidal creek food web (aquatic), whereas during low water events accumulated biomass within the ponds feed the marsh food web (terrestrial), which includes blue crabs (Callinectes sapidus) and the whooping crane (Grus americana).

Carrie J. Miller, Stephen E. Davis III, Daniel L. Roelke, Hsiu-Ping Li, and Matthew J. Driffill "Factors Influencing Algal Biomass in Intermittently Connected, Subtropical Coastal Ponds," Wetlands 29(2), 759-771, (1 June 2009). https://doi.org/10.1672/08-69.1
Received: 13 March 2008; Accepted: 1 February 2009; Published: 1 June 2009
JOURNAL ARTICLE
13 PAGES

This article is only available to subscribers.
It is not available for individual sale.
+ SAVE TO MY LIBRARY

SHARE
ARTICLE IMPACT
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top