Photosynthesis–irradiance parameters and community structure associated with coastal filaments and adjacent waters in the northern Arabian Sea

Comparisons were made among size-fractionated photosynthesis-irradiance ( P- E) parameters, chlorophyll a size distributions, and accessory pigment composition of natural phytoplankton assemblages in filaments, coastal upwelling waters, and an oligotrophic region of the northern Arabian Sea during t...

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Published in:Deep-sea research. Part II, Topical studies in oceanography Topical studies in oceanography, 2000, Vol.47 (7), p.1249-1277
Main Authors: Toon, Rory K, Lohrenz, Steven E, Rathbun, Catherine E, Michelle Wood, A, Arnone, Robert A, Jones, Burton H, Kindle, John C, Weidemann, Alan D
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Language:English
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Arabian Sea
chlorophyll a
Marine
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description Comparisons were made among size-fractionated photosynthesis-irradiance ( P- E) parameters, chlorophyll a size distributions, and accessory pigment composition of natural phytoplankton assemblages in filaments, coastal upwelling waters, and an oligotrophic region of the northern Arabian Sea during the Fall Intermonsoon in 1995. Differences between P- E parameters, P B max and α B, were observed between filaments and adjacent waters and were associated with differences in phytoplankton community structure. In a southern filament and coastal upwelled waters, the majority of the estimated biomass (chlorophyll a) was present in the larger (2–20 and 20–200 μm) size fractions; dominant accessory pigments were 19′-butanoyloxyfucoxanthin and peridinin. In higher salinity waters, high percentages of chlorophyll a and lutein/zeaxanthin were observed in the smallest size-fraction (
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chlorophyll a
Marine
title Photosynthesis–irradiance parameters and community structure associated with coastal filaments and adjacent waters in the northern Arabian Sea
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