NDLI: Long-term Changes and Controlling Factors of Phytoplankton Community in the Gulf of Riga (Baltic Sea)

Content Provider	Springer Nature Link
Author	Jurgensone, Iveta Carstensen, Jacob Ikauniece, Anda Kalveka, Baiba
Copyright Year	2011
Abstract	Trends in phytoplankton monitoring data (1976–2008) from the Gulf of Riga were investigated and linked to environmental factors. Annual means of spring phytoplankton biomass correlated to phosphorus input from land and shifts between diatoms and dinoflagellates were attributed to potential Si limitation and time of sampling relative to the spring phytoplankton succession. The summer phytoplankton biomass, which more than doubled over the study period, was related to the abundance of summer copepods that similarly declined. Cyanobacterial blooms proliferated in summer and the proportion of diatoms similarly declined when the winter–spring inorganic N/P ratio was low. The chlorophyte proportion in summer increased over the study period, and this was linked to increasing temperatures favoring their higher growth rates. The dinoflagellate proportion appeared to decrease with temperatures above a threshold of 15.5°C. Although nutrient inputs and their ratios are important factors for the phytoplankton community, this study suggests that climate change and overfishing could be equally important.
Starting Page	1205
Ending Page	1219
Page Count	15
File Format	PDF
ISSN	15592723
Journal	Estuaries
Volume Number	34
Issue Number	6
e-ISSN	15592731
Language	English
Publisher	Springer-Verlag
Publisher Date	2011-04-21
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Long-term trends Seasonal succession Nutrients Brackish water Temperature Copepods Ecology Coastal Sciences Environment Nature Conservation Environmental Management Freshwater & Marine Ecology
Content Type	Text
Resource Type	Article
Subject	Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics

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