Trophic categories defined with respect to the chlorophyll a concentration within the surface layer, [Chla]surf, and the associated parameters

Range Table - link
Organism Biosphere
Reference Julia Uitz, Herve´ Claustre, Andre´ Morel, and Stanford B. Hooker, Vertical distribution of phytoplankton communities in open ocean: An assessment based on surface chlorophyll, Journal of geophysical research, Vol. 111, 2006, C08005, doi:10.1029/2005JC003207 p.7 table 3
Method Abstract: "[1] The present study examines the potential of using the near-surface chlorophyll a concentration ([Chla]surf), as it can be derived from ocean color observation, to infer the column-integrated phytoplankton biomass, its vertical distribution, and ultimately the community composition. Within this context, a large High-Performance Liquid Chromatography (HPLC) pigment database was analyzed."
Comments P.5 left column bottom paragraph: "[16] Beside chlorophyll a, other pigments (i.e., accessory pigments) can be determined via HPLC [High-performance liquid chromatography]. Some are typical of phytoplanktonic groups and can be used as biomarkers. In order to condense the information contained within the full suite of pigments, and along the lines of previous studies [Gieskes et al., 1988 Claustre, 1994 Vidussi et al., 2001], so-called ‘‘pigment indices’’ are constructed with the objective of quantifying the taxonomic composition by using a minimal set of pigments. Seven major pigments are thus selected as being representative of distinct phytoplankton groups. Their taxonomic significance is summarized in Table 2 [see also Vidussi et al., 2001, Table 1, and supporting references therein]. These seven pigments are fucoxanthin, peridinin, 19’-hexanoyloxyfucoxanthin, 19’-butanoyloxyfucoxanthin, alloxanthin, chlorophyll b and divinyl chlorophyll b, and zeaxanthin." See notes beneath table
Entered by Uri M
ID 112622