Pigment signatures reveal temporal and regional differences in taxonomic phytoplankton composition off the west coast of Ireland |
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| Authors: | Ediger D; Raine R; Weeks A R; Robinson I S; Sagan S |
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| Institution: | 1 School Of Ocean And Earth Science, Southampton Oceanography Centre, European Way, Southampton So14 3zh, Uk,
2 Martin Ryan Institute, University College Galway, Galway, Ireland,
3 Maritime Faculty, Southampton Institute, East Park Terrace, Southampton, So14 0yn, Uk,
4 Institute Of Oceanology, Polish Academy Of Sciences, UL.Powstancow Warszawy 55, 81-712, Sopot, Poland |
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| Abstract: | The composition of phytoplankton assemblages in April, 1998in Galway Bay and during a summer phytoplankton bloom occurringsouthwest of Ireland in August, 1998, was characterized by pigmentsmeasured by high-performance liquid chromatography. Pigmentdata reflecting phytoplankton assemblages dominated by diatomsin Galway Bay and dinoflagellates in the southwest of Irelandwere compared to phytoplankton cell counts. Significant relationshipswere found between the fucoxanthin concentrations and the diatomcell numbers (P < 0.0002 r2 0.63) during April, and betweenfucoxanthin (P < 0.0001 r2 0.79), 19'hexanoyloxyfucoxanthin(P < 0.0001 r2 0.77) concentrations and Gyrodinium aureolumcell numbers during the summer bloom. |
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