Abstract
The Chromarod-Iatroscan thin-layer chromatography-flame ionization detection (TLC-FID) system was used to measure lipid classes in the dissolved and suspended particulate fractions of seawater samples taken near the edge of the Scotian Shelf and in Bedford Basin, a small Nova Scotian inlet. Vertical profiles within the surface waters of these environments suggest considerable spatial heterogeneity in lipid class levels and warn against assuming any uniformity in the composition of dissolved or particulate matter. The levels of lipid classes measured below the pycnocline were about half the values observed above it. The highest levels of lipids were measured in the vicinity of pycnoclines.
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