Tamar Estuary
AIM
To investigate the spatial variation of phosphate and silicate concentrations, zooplankton abundance, chlorophyll, turbidity, irradiance, temperature and salinity levels down the Tamar Estuary.
INTRODUCTION
Weather: Very little-
to 7KNTS), bright, dry, feels warm.
Temperature: 24 degrees
Hight Water: 09:56UTC
Low water: 15:50 UTC
On 5th July 2018, we joined with another group of students (group 8) to perform a complete survey of the Tamar estuary. Three groups were used to sample three locations on the estuary from Calstock (site a2) to the Breakwater. The first group used the RV Winnie the Pooh to collect data from Calstock (A1) to the Weir (A14). A second group on the RV Falcon Spirit took CTD and ADCP data from Cargreen (b14) to the breakwater (j19). The third group were based on the pontoon at Saltash and spent the day undertaking at time series at the one location (navigate to time series).
At each site, temperature ad salinity were sampled as well as a number of other parameters including: dissolved oxygen, turbidity and fluorimetry based on the equipment available. Niskin bottles attached to the CTD rosette were also collected to calculate phosphate, silicate, chlorophyll concentrations as well as phytoplankton and zooplankton distributions.
Map 1 of the Tamar Estuary showing all stations sampled. Stations a1-
Map 2 of the Tamar Estuary
Map 3-