The University of Southampton
University of Southampton Institutional Repository

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

Phytoplankton pigments and functional types in the Atlantic Ocean: A decadal assessment, 1995–2005
Phytoplankton pigments and functional types in the Atlantic Ocean: A decadal assessment, 1995–2005
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.
Phytoplankton pigments, Functional types, Biogeochemical provinces, Decadal data
0967-0645
899-917
Aiken, Jim
4dbfaf25-cdeb-41cb-820b-ba8f5db7f9f8
Pradhan, Yaswant
ce89248b-47fe-4ddb-9892-d0b44b649f76
Barlow, Ray
ebbcc1c0-c954-464b-9047-f8cb4d7af398
Lavender, Sam
cc8bd2bb-5bad-4924-9d2a-b8226ca00b57
Poulton, Alex
14bf64a7-d617-4913-b882-e8495543e717
Holligan, Patrick
4c1d9d64-dfa7-49bf-9e15-37f891d59b7c
Hardman-Mountford, Nick
5ed3a97e-1712-44d2-a76c-858093d33e72
Aiken, Jim
4dbfaf25-cdeb-41cb-820b-ba8f5db7f9f8
Pradhan, Yaswant
ce89248b-47fe-4ddb-9892-d0b44b649f76
Barlow, Ray
ebbcc1c0-c954-464b-9047-f8cb4d7af398
Lavender, Sam
cc8bd2bb-5bad-4924-9d2a-b8226ca00b57
Poulton, Alex
14bf64a7-d617-4913-b882-e8495543e717
Holligan, Patrick
4c1d9d64-dfa7-49bf-9e15-37f891d59b7c
Hardman-Mountford, Nick
5ed3a97e-1712-44d2-a76c-858093d33e72

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), 899-917. (doi:10.1016/j.dsr2.2008.09.017).

Record type: Article

Abstract

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.

Full text not available from this repository.

More information

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

Identifiers

Local EPrints ID: 66835
URI: https://eprints.soton.ac.uk/id/eprint/66835
ISSN: 0967-0645
PURE UUID: f23e83c7-08b2-4aa1-8710-aa29ce31229b

Catalogue record

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

Export record

Altmetrics

Contributors

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

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of https://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×