GTM Research Reserve participates in the System-wide Monitoring Program (SWMP) provides standardized data on
national estuarine environmental trends while allowing the flexibility to assess coastal management issues
of regional or local concern. The principal mission of the SWMP is to develop quantitative measurements of
short-term variability and long-term changes in the integrity and biodiversity of representative estuarine
ecosystems and coastal watersheds for the purposes of contributing to effective coastal zone management. The
GTM Research Reserve program has three main elements: water quality, weather and nutrient/chlorophyll
analyses. Both the weather station and the datalogger at Pellicer Creek have satellite telemetry which
provides near real-time data availability.
The water quality component is four dataloggers that continuously measure:
- Water temperature.
- Dissolved oxygen.
- Water depth.
The weather component is a weather station located at the mouth of Pellicer Creek that continuously measures:
- Relative humidity.
- Atmospheric pressure.
- Wind speed and direction.
- Photosynthetically active radiation (PAR)
The third SWMP element involves nutrient/chlorophyll analysis of water samples collected monthly at each of
the four water quality stations, in addition to a diel sampling regime carried out once a month at the
Pellicer Creek site. Water samples collected at each site are analyzed for:
- Total Kjeldahl nitrogen.
- Total phosphorus.
- Total suspended solids.
- Chrolophyll a
- Fecal coliforms.
All SWMP data is housed and served through the NERRS Centralized Data Management Office (CDMO) which
provides quality assurance and quality control for the Reserve system. The CDMO is also responsible for
maintaining and updating the NERRS standard operating procedures so that all SWMP data are collected in the
same way across the nation. Near-real time water quality and weather
data as well as archived water quality, weather, and
nutrient data can be accessed at
Other agencies, including the Florida Department of Agriculture and Consumer Services' Division of
Aquaculture and St. Johns River Water Management District also conduct water quality sampling within and
near the boundaries of GTM Research Reserve. More information about SWMP
and other water quality monitoring programs within GTM
Research Reserve are available in the
GTM Research Reserve Site Profile
(pdf - 4.46 MB). All research-related inquiries at GTM
Research Reserve should be directed to the Research
Coordinator, Nikki Dix, at: