Water-Column

How does planktonic community structure and production respond to changes in organic matter, nutrients, and water fluxes?

Modeled diurnal change in water-column dissolved oxygen in the Parker River Estuary along the salinity gradient. Scientists use these diurnal oxygen changes to estimate estuarine metabolism, including respiration, gross primary production, and net community production

Several dawn and dusk dissolved oxygen transects along the estuarine salinity gradient. Note the low oxgyen in the morning after a night of respiration, and the higher oxgyen in the evening following a day of photosynthesis in the water.

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ESTsite  Parker River Estuary Transect Station Map.

EST-PR-O2
 Parker River Plum Island Sound dawn and dusk dissolved oxygen transects. Includes conductivity, temperature, dissolved oxgyen, and some pH, DIC, and pCO₂ measurements.

EST-PR-O2info
 Information file for dissolved oxgyen transects, including time of sampling, sunrise and sunset times, windspeed, and solar radiation information.

EST-PR-ChemTax
 Phytoplankton identification using HPLC and Chem Taxonomy along transects in the Plum Island Sound estuary.

EST-PR-NUT
 Parker River Plum Island Sound water chemistry transects. Dissolved and particulate water chemistry along a salinity gradient, includes organic and inorganic dissolved nitrogen and phosphorus, organic carbon, particulate organic carbon, nitrogen, and phosphorus, and d¹⁵N and d¹³C of the organic particulates

MON-PR-MBYSI2000
Year 2000, continuous water quality YSI measurements in the upper Parker River, Middle Road Bridge - see monitoring site map: MONsite).

MON-PR-MBYSI2001
Year 2001, continuous water quality YSI measurements in the upper Parker River, Middle Road Bridge - see monitoring site map: MONsite).

MON-PR-MBYSI2002
Year 2002, continuous water quality YSI measurements in the upper Parker River, Middle Road Bridge - see monitoring site map: MONsite).

MON-PR-MBYSI2003
Year 2003, continuous water quality YSI measurements in the upper Parker River, Middle Road Bridge - see monitoring site map: MONsite).

MON-PR-RT1AYSI2000
Year 2000, continuous water quality YSI measurements in the lower Parker River, Rt. 1A - see monitoring site map: MONsite).

MON-PR-RT1AYSI2001
Year 2001, continuous water quality YSI measurements in the lower Parker River, Rt. 1A - see monitoring site map: MONsite).

MON-PR-RT1AYSI2002
Year 2002, continuous water quality YSI measurements in the lower Parker River, Rt. 1A - see monitoring site map: MONsite).

MON-SO-IBYCYSI2000
Year 2000, continuous water quality YSI measurements in Plum Island Sound, Ipswich Bay Yacht Club - see monitoring site map: MONsite).

MON-SO-IBYCYSI2001
Year 2001, continuous water quality YSI measurements in Plum Island Sound, Ipswich Bay Yacht Club - see monitoring site map: MONsite).

MON-SO-IBYCYSI2002
Year 2002, continuous water quality YSI measurements in Plum Island Sound, Ipswich Bay Yacht Club - see monitoring site map: MONsite).

Methods  Analytical methods for water chemistry analysis.