you were looking for Baltic Sea isotope samples. Brian Fry and I analysed
some DIC samples from the Baltic Proper in summer 98 for their 13C values.
We found numbers of 2 permill at the surface decreasing to -2 permill in 70
m depth. Below that, i.e. below the permanent halocile, we found some
variation between -3 and -2 permill down to the bottom. Those data are not
Hope it helps
Baltic Sea Research Institute
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