Articles | Volume 13, issue 17
Biogeosciences, 13, 4959–4973, 2016
https://doi.org/10.5194/bg-13-4959-2016
Biogeosciences, 13, 4959–4973, 2016
https://doi.org/10.5194/bg-13-4959-2016

Research article 08 Sep 2016

Research article | 08 Sep 2016

Spring blooms in the Baltic Sea have weakened but lengthened from 2000 to 2014

Philipp M. M. Groetsch et al.

Data sets

Algaline flow-through data set on phytoplankton and related parameters collected unattended onboard merchant ships by the FIMR (2000-2014), British Oceanographic Data Centre - Natural Environment Research Council, UK P., Groetsch, S., Simis http://10/bp7z

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Short summary
Phytoplankton spring bloom phenology was derived from a 15-year time series (2000–2014) of ship-of-opportunity chlorophyll a fluorescence observations in the Baltic Sea. Bloom peak concentrations have declined over the study period, while bloom duration has increased. It is concluded that nutrient reduction efforts led to decreasing bloom intensity, while changes in Baltic Sea environmental conditions associated with global change corresponded to a lengthening spring bloom period.
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