Photosynthetic pigments in a warm core eddy of the East Australian Current were studied by In vjvo fluorometry, spectrophotometry and thin-layer chromatography.The Variosens i n sltu fluorometer gave only an approximate guide to the location and quantity of phytoplankton in the water column; spectrophotometric curve analysis revealed the presence of intact or detrital chlorophylls, and quantitative thin-layer chromatography showed that in some samples intact chlorophyll a accounted for only 50-70 % of the total spectrophotometrically measured 'chlorophyll' In addition the full range of chlorophylls, carotenoids and chlorophyll degradation products was recorded from the chromatograms. O by Inter-Research
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Jeffrey et al. (1980) studied this question.