Pigment signatures reveal temporal and regional differences in taxonomic phytoplankton composition off the west coast of Ireland

Date

2001-08-01

Author

Ediger, D
Raine, R
Weeks, AR
Robinson, IS
Sagan, S

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The composition of phytoplankton assemblages in April, 1998 in Galway Bay and during a summer phytoplankton bloom occurring southwest of Ireland in August, 1998, was characterized by pigments measured by high-performance liquid chromatography. Pigment data reflecting phytoplankton assemblages dominated by diatoms in Galway Bay and dinoflagellates in the southwest of Ireland were compared to phytoplankton cell counts. Significant relationships were found between the fucoxanthin concentrations and the diatom cell numbers (P < 0. 0002 r(2) 0.63) during April, and between fucoxanthin (P < 0.0001 r(2) 0.79), 19'hexanoyloxyfucoxanthin (P < 0.0001 r(2) 0.77) concentrations and Gyrodinium aureolum cell numbers during the summer bloom.

Subject Keywords

2 Strains, Atlantic, Chlorophyll, HPLC

URI

https://hdl.handle.net/11511/68100

Collections

Graduate School of Marine Sciences, Article