Skip to content
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
Pigment signatures of the phytoplankton composition in the northeastern Atlantic during the 1990 spring bloom
Deep-Sea Research Part II, Volume 40, No. 1-2, Year 1993
Notification
URL copied to clipboard!
Description
Pigment signatures were used to track the development and composition of a phytoplankton bloom in the northeastern Atlantic during May/June 1990 using reversed-phase high-performance liquid chromatography. Chlorophyll a concentrations at 5 m increased from 1.2 to 3.7 μg 1-1 during the first half of May, and decreased progressively thereafter in the post-bloom stage. Multiple regression analysis of chlorophyll a and selected accessory pigments indicate that diatoms (fucoxanthin; 23-70%) and prymnesiophytes (19′-hexanoyloxyfucoxanthin; 40-20%) dominated the chlorophyll a biomass in the development phase, with prymnesiophytes dominating the post-bloom stage (45-55%). Dinoflagellates (peridinin; 5-25%) and "green" algae (chlorophyll b; 5-10%) were secondary components of the microalgal community. Depth distributions revealed that the pigment maxima occurred near the surface at 5-15 m, with concentrations decreasing rapidly below 15 m. At the peak of the bloom, diatoms (fucoxanthin) were dominant throughout the water column down to 300 m, while in the post-bloom phase, prymnesiophytes (19′-hexanoyloxyfucoxanthin) dominated the community in the upper 20 m with diatoms accumulating in deeper water. Concomitant measurements of nutrients and downwelling irradiance suggest that nitrate availability limited the growth of the phytoplankton in the upper 15 m and below this depth limitation was due to low irradiance levels. © 1992.
Authors & Co-Authors
Barlow, Raymond G.
United Kingdom, Plymouth
Plymouth Marine Laboratory
Mantoura, Richard Fauzi C.
United Kingdom, Plymouth
Plymouth Marine Laboratory
Statistics
Citations: 274
Authors: 2
Affiliations: 1
Identifiers
Doi:
10.1016/0967-0645(93)90027-K
ISSN:
09670645
Research Areas
Environmental
Study Approach
Quantitative