Multiannual phytoplankton trends in relation to environmental changes across aquatic domains: A case study from Sardinia (Mediterranean Sea)

Pulina, Silvia; Suikkanen, Sanna; Satta, Cecilia Teodora; Mariani, Maria Antonietta; Padedda, Bachisio Mario; Virdis, Tomasa; Caddeo, Tiziana; Sechi, Nicola; Lugliè, Antonella Gesuina Laura

doi:10.1080/11263504.2014.989283

Cited by 8 publications

(16 citation statements)

References 30 publications

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“…A reduction in size is also reported, starting from the years 2000s, for the Gulf of Olbia (Pulina et al, 2016) where, however, it was prevalently caused by changes of the main taxonomic groups, with a shift from a diatom dominated community (during the 1990s) to undetermined small (~ m) coccoids and flagellates and, more recently, cryptophytes. A significant chl decrease was also recorded during the same years, despite a significant nutrient increase.…”

Section: Water Temperature Trophic State and Phytoplanktonmentioning

confidence: 73%

“…The Ligurian Sea also shows an increase of SST, starting from the 90s (Cattaneo-Vietti et al, 2010, 2015, mainly in late spring and autumn in the last 15 years (Stirnimann, 2015). In the Gulf of Olbia, instead, there was no significant temperature trend over time, even considering the single seasons (Pulina et al 2016).…”

Section: Water Temperature Trophic State and Phytoplanktonmentioning

confidence: 90%

“…A significant chl decrease was also recorded during the same years, despite a significant nutrient increase. Pulina et al (2016) hypothesize that a combination of bottom-up and top-down controlling factors affect phytoplankton dynamics on a multiannual scale, with intensive mussel and clam farming acting as the prevalent driver.…”

Section: Water Temperature Trophic State and Phytoplanktonmentioning

confidence: 99%

“…Cabras, a salinity decrease since the early 2000s, resulted in a shift in phytoplankton community composition, which became dominated by cyanobacteria (Pulina et al 2012). Salinity changes were mainly due to the precipitation regime and inputs of freshwater from the watershed, which increased in relation to the increased frequency of exceptional climatic events (Pulina et al, 2016).…”

Section: Water Temperature Trophic State and Phytoplanktonmentioning

confidence: 99%

“…Unfortunately, trans-domain (i.e., freshwater vs. marine ecosystems) comparative analyses are lacking. As far as we know, only two studies exist that compares Italian freshwater and marine ecosystems (Pugnetti et al, 2006;Pulina et al, 2016). The first analyzes the state of the art of phytoplankton production in one freshwater (Lake Maggiore) and two marine ecosystems (the Northern Adriatic Sea and the Gulf of Naples); the second compares multiannual phytoplankton dynamics from a reservoir (Lake Temo), a lagoon (Cabras Lagoon) and a marine ecosystem (Gulf of Olbia) in Sardinia, in relation to selected environmental variables.…”

Section: Introductionmentioning

confidence: 99%

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Plankton dynamics across the freshwater, transitional and marine research sites of the LTER-Italy Network. Patterns, fluctuations, drivers

Morabito¹,

Mazzocchi

Salmaso

et al. 2018

Science of The Total Environment

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A first synoptic and trans-domain overview of plankton dynamics was conducted across the aquatic sites belonging to the Italian Long-Term Ecological Research Network (LTER-Italy). Based on published studies, checked and complemented with unpublished information, we investigated phytoplankton and zooplankton annual dynamics and long-term changes across domains: from the large subalpine lakes to mountain lakes and artificial lakes, from lagoons to marine coastal ecosystems. This study permitted identifying common and unique environmental drivers and ecological functional processes controlling seasonal and long-term temporal course. The most relevant patterns of plankton seasonal succession were revealed, showing that the driving factors were nutrient availability, stratification regime, and freshwater inflow. Phytoplankton and mesozooplankton displayed a wide interannual variability at most sites. Unidirectional or linear long-term trends were rarely detected but all sites were impacted across the years by at least one, but in many case several major stressor(s): nutrient inputs, meteo-climatic variability at the local and regional scale, and direct human activities at specific sites. Different climatic and anthropic forcings frequently co-occurred, whereby the responses of plankton communities were the result of this environmental complexity. Overall, the LTER investigations are providing an unparalleled framework of knowledge to evaluate changes in the aquatic pelagic systems and management options.

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Section: Water Temperature Trophic State and Phytoplanktonmentioning

confidence: 73%

Section: Water Temperature Trophic State and Phytoplanktonmentioning

confidence: 90%

Section: Water Temperature Trophic State and Phytoplanktonmentioning

confidence: 99%

Section: Water Temperature Trophic State and Phytoplanktonmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Plankton dynamics across the freshwater, transitional and marine research sites of the LTER-Italy Network. Patterns, fluctuations, drivers

Morabito¹,

Mazzocchi

Salmaso

et al. 2018

Science of The Total Environment

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Eutrophication and Nutrient Fluxes in Mediterranean Coastal Lagoons

Padedda

Pulina

Satta

et al. 2019

Encyclopedia of Water

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In this article, we provide a general overview of eutrophication in aquatic ecosystems, with a focus on the Mediterranean Sea and two Sardinian lagoons (western Mediterranean Sea, Italy), as case studies. In the Cabras Lagoon, we assessed the nutrient budget and fluxes using the biogeochemical Land–Ocean Interaction Coastal Zone model. High nutrient and chlorophyll‐ a concentrations indicated eutrophic conditions, summer being the most critical season as related to the decrease in riverine water supply, the increase in water evaporation and a concurrent isolation of the lagoon from the adjacent sea. In the Calich Lagoon, the eutrophic conditions, assessed during 2008–2015, seemed to be attenuated by a good water exchange with the sea, yet potential harmful phytoplankton species were found. Overall, the present study shows how Mediterranean coastal lagoons are strongly influenced by both terrestrial and marine ecosystems. Eutrophication is one of the main forms of environmental degradation of aquatic ecosystems, and in coastal lagoons, this is the consequence of multiple pressures, which have led to significant losses of major ecosystem goods and services, such as aquaculture, fishery, and tourism. Good practices and landscape management are urgently needed to prevent further deterioration of these sensible ecosystems.

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Structural and ultrastructure changes show an increase in amoeboid forms in Heterosigma akashiwo (Raphidophyceae), during recovery after nutrient depletion

Papini

Fani

Belli

et al. 2016

Plant Biosystems - An International Journal Dealing with all As

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Multiannual phytoplankton trends in relation to environmental changes across aquatic domains: A case study from Sardinia (Mediterranean Sea)

Cited by 8 publications

References 30 publications

Plankton dynamics across the freshwater, transitional and marine research sites of the LTER-Italy Network. Patterns, fluctuations, drivers

Plankton dynamics across the freshwater, transitional and marine research sites of the LTER-Italy Network. Patterns, fluctuations, drivers

Eutrophication and Nutrient Fluxes in Mediterranean Coastal Lagoons

Structural and ultrastructure changes show an increase in amoeboid forms in Heterosigma akashiwo (Raphidophyceae), during recovery after nutrient depletion

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