Time series of particulate and dissolved lipid classes during spring phytoplankton blooms in Bedford Basin, a marine inlet

CC Parrish
1987 Marine Ecology Progress Series  
The Chromarod-Iatroscan TLC/FID system was used to measure h p~d classes in the dissolved and particulate fractions of seawater samples taken dunng spnng blooms In Bedford Basln, a small inlet in eastern Canada. Polar hpids were the major dissolved lipids present during the bloon~s. Dissolved l i p~d t~m e series indicate decreased phytoplankton exudation and increased bacterial uptake of lipid classes at the t~m e of the chlorophyll maximum. There is evidence to suggest algal uptake of
more » ... l uptake of dissolved phospholip~ds. T h~s polar l i p~d class may be used by autotrophs as a source of N and P when inorganic nutrient levels are depleted. The energy-rich storage component, triglyceride, became the major particulate lipid class from the time of the chlorophyll maximum onwards. Other particulate hpid classes present after the chlorophyll maxlmunl suggest that in addition to increased energy storage, there was a greater degree of degradahon of hplds and larger numbers of microheterotrophs.
doi:10.3354/meps035129 fatcat:cekce4njr5frzagt3a4cn7nhfu