Figure F3. Downhole profiles of relative total dissolved carbohydrates (DCHO) concentrations (DCHO/dissolved organic carbon [DOC]) for all sites sampled during Leg 201. Note the apparent differences in relative DCHO concentrations at the open-ocean sites; Peru margin Sites 1227, 1228 and 1229; and Peru margin Site 1230. At Site 1226, DCHO and DOC data were not available for the same hole (DCHO data for Hole 1226B and DOC data for Hole 1226E). However, because the DOC data in Hole 1226E showed virtually no depth gradient (Smith, this volume), the DCHO data from Hole 1226B were normalized to an average DOC concentration for Hole 1226E. Also note that in a few instances values of DCHO/DOC were >1. Since DCHOs are a subset of the total DOC pool, this is physically impossible. At the present time, it is unclear as to whether these DCHO values are too high or the DOC values are too low.

Figure F3. Downhole profiles of relative total dissolved carbohydrates (DCHO) concentrations (DCHO/dissolved organic carbon [DOC]) for all sites sampled during Leg 201. Note the apparent differences in relative DCHO concentrations at the open-ocean sites; Peru margin Sites 1227, 1228 and 1229; and Peru margin Site 1230. At Site 1226, DCHO and DOC data were not available for the same hole (DCHO data for Hole 1226B and DOC data for Hole 1226E). However, because the DOC data in Hole 1226E showed virtually no depth gradient (Smith, this volume), the DCHO data from Hole 1226B were normalized to an average DOC concentration for Hole 1226E. Also note that in a few instances values of DCHO/DOC were >1. Since DCHOs are a subset of the total DOC pool, this is physically impossible. At the present time, it is unclear as to whether these DCHO values are too high or the DOC values are too low.