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Phytoplankton pigments and functional types in the Atlantic Ocean: A decadal assessment, 1995–2005

Aiken, Jim, Pradhan, Yaswant, Barlow, Ray, Lavender, Sam, Poulton, Alex, Holligan, Patrick and Hardman-Mountford, Nick (2009) Phytoplankton pigments and functional types in the Atlantic Ocean: A decadal assessment, 1995–2005 Deep Sea Research Part II: Topical Studies in Oceanography, 56, (15), pp. 899-917. (doi:10.1016/j.dsr2.2008.09.017).

Record type: Article


The phytoplankton pigment composition (chlorophylls and carotenoids) from 17 Atlantic Meridional Transect (AMT) cruises over the period 1995–2005 was analysed to determine the distributions of pigments and plankton in the Atlantic Ocean between 50°N and 50°S. Data were quality assured by statistical methods, including regression of total chlorophyll a (TChla) versus accessory pigments (AP) and comparison of the AMT-TChla with contemporary SeaWiFS-TChla (cruises AMT-05 to -17). Comparisons of province-mean TChla (±SD) for in situ and satellite data showed good agreement for each cruise. ‘Taxa-specific’ pigments were used to define phytoplankton functional types (PFTs) for each of the biogeochemical provinces along the AMT. Pigment ratios (e.g. TChla/AP) were analysed for each cruise and for each province as indices (characteristic properties) of particular PFTs. Mostly robust positive correlations were observed between TChla and pigment ratios for different PFTs, for some provinces and most cruises. These were consistent with previous observations. Generally there were no significant trends of mean TChla or pigment ratios within provinces over the period 1995–2005, although the previously reported perturbation due to the 1997–1998 ENSO was evident.

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Published date: 1 July 2009
Keywords: Phytoplankton pigments, Functional types, Biogeochemical provinces, Decadal data


Local EPrints ID: 66835
ISSN: 0967-0645
PURE UUID: f23e83c7-08b2-4aa1-8710-aa29ce31229b

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Date deposited: 24 Jul 2009
Last modified: 19 Jul 2017 00:21

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Author: Jim Aiken
Author: Yaswant Pradhan
Author: Ray Barlow
Author: Sam Lavender
Author: Alex Poulton
Author: Patrick Holligan
Author: Nick Hardman-Mountford

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