Site 1 spreadsheet:
Gloucester-Sharpness Canal (51.7249 N, 2.4733 W), England.
Data contains:
* Name of site, 
* Taxa, 
* Species name, 
* Length (mm), 
* Tissue taken,
* Stable isotope values (corrected)

Site 2 spreadsheet:
River Bure (upstream of the upper limit of saline incursion at Horning), England
Data contains:
* Species
* Length (mm)
* Stable isotope values (corrected)