Intermittently Closed and Open Lake Lagoons (ICOLLs) are very common along the
southern NSW coastline. Expanding urban populations are expanding and these systems are
under increasing pressure from anthropogenic activities that change landscape processes and
significantly alter the amounts of organic and inorganic constituents entering their waters.
Once efficient cycling of nutrients in ICOLLs is overcome, the symptoms of eutrophication
establish and the entire ecosystem suffers. These systems have great ecological, social, and
economic values that require insightful, well balanced, and educated management to
promote sustainable use of these often-sensitive areas.
Corunna and Nangudga Lake are ICOLLs in the Eurobodalla Shire on the south
coast of NSW. These two ICOLLs receive discharges from catchments covered by native
vegetation and grassland. The primary objective of this research component was to quantify
catchment exports of total nitrogen (TN), total phosphorus (TP), suspended solids (SS),
particulate organic matter (POM) and dissolved organic carbon (DOC) from three small
coastal sub catchments that deliver constituents into Corunna and Nangudga Lakes. As part
of this investigation the fates of catchment loads in the ICOLLs were established focusing
on the lakes water column response to catchment loads and the biogeochemical cycling of
nitrogen and phosphorus in sediments.
| Identifer | oai:union.ndltd.org:ADTP/219547 |
| Date | January 2005 |
| Creators | Spooner, Daniel Ron, n/a |
| Publisher | University of Canberra. Resource, Environmental & Heritage Sciences |
| Source Sets | Australiasian Digital Theses Program |
| Language | English |
| Detected Language | English |
| Rights | ), Copyright Daniel Ron Spooner |
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