Response of the Venice Lagoon Ecosystem to Natural and Anthropogenic Pressures over the Last 50 Years

Solidoro, Cosimo; Bandelj, Vinko; Bernardi, Fabrizio; Camatti, Elisa; Ciavatta, Stefano; Cossarini, Gianpiero; Facca, Chiara; Franzoi, Piero; Libralato, Simone; Melaku, Canu D.; Pastres, Roberto; Pranovi, Fabio; Raicevich, Saša; Socal, Giorgio; Sfriso, Adriano; Sigovini, Marco; Tagliapietra, Davide; Torricelli, Patrizia

doi:10.1201/ebk1420088304-c19

Cited by 88 publications

(107 citation statements)

References 69 publications

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“…The lower detritus consumption may indicate that the ecosystem was responding to changes in nutrient loads and in sediment re-suspension pattern, by altering the composition of the primary producers community. This finding is consistent with the results presented in Solidoro et al (2010), which indicates a marked decrease in phytoplankton concentrations and an increase in the extension of seagrass meadows during the last decade. To this regard, it is interesting to note that the model predicts a very large epiphytes production, which represents almost 70% of the net primary production.…”

Section: Recent Changes In the Venice Lagoon Food Websupporting

confidence: 83%

An inverse model for the analysis of the Venice lagoon food web

Brigolin

Savenkoff

Zucchetta

et al. 2011

Ecological Modelling

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Section: Recent Changes In the Venice Lagoon Food Websupporting

confidence: 83%

An inverse model for the analysis of the Venice lagoon food web

Brigolin

Savenkoff

Zucchetta

et al. 2011

Ecological Modelling

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“…Other authors have described progressive oligotrophication over the last few years in both the Venice Lagoon (Solidoro et al 2010) and the adjacent Adriatic Sea (Mozetič et al 2009). In the northern Adriatic Sea a recent decrease in chlorophyll has paralleled a reduction in freshwater discharge from both the Po (Zanchettin et al 2008) and other smaller rivers such as the Isonzo (Comici and Bussani 2007).…”

Section: Discussionmentioning

confidence: 99%

Looking for patterns in the phytoplankton community of the Mediterranean microtidal Venice Lagoon: evidence from ten years of observations

Aubry¹,

Acri²,

Bianchi³

et al. 2013

Sci. Mar.

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SUMMARY: By analysing a ten-year series (1998)(1999)(2000)(2001)(2002)(2003)(2004)(2005)(2006)(2007) of data on hydrochemical properties, phytoplankton abundance and species composition in the Venice Lagoon, we identified i) the average annual phytoplankton biomass cycle, mainly unimodal and fairly well tuned with the fluctuations in temperature and irradiance and (ii) the seasonal succession of the most important species, allowing us to construct a "phytoplankton calendar". Phytoplankton biomass was significantly lower in the second half of the ten-year period (2003)(2004)(2005)(2006)(2007) than in the first half (1998)(1999)(2000)(2001)(2002).

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“…Significant changes in water chemistry have overlapped to hydrological changes in the last century, producing vegetal and animal trophic effects (Sfriso et al, 1992;Tagliapietra et al, 1998;Solidoro et al, 2010). The increase of nutrient inputs in the 80-90 s caused a succession of aquatic vegetation from seagrasses to fast-growing macroalgae (Sfriso et al, 2003;Sfriso and Facca, 2007).…”

Section: Hydroecological Implicationsmentioning

confidence: 99%

“…The changes in hydrological conditions could be partly responsible for the evolution observed from 1970 to the present in the zooplankton community structure (Acri et al, 2004;Solidoro et al, 2010). The increased exchange with the sea and the shortening of the WRT, mainly in the inner area of the Venice Lagoon, well correlate with the shift in mesozooplankton composition, with occurrence of the copepod Acartia tonsa Dana, now the dominant Acartia species in the inner and middle part of the basin, and decrease of Acartia lasetinosa, typical of confined environments (Mauchline, 1998).…”

Section: Hydroecological Implicationsmentioning

confidence: 99%

“…From a few centuries after its colonisation, the Venetians tried to modify the environment in the attempt to preserve economic interests and for defense purposes (Guerzoni and Tagliapietra, 2006;Solidoro et al, 2010). Priority was given to the management of freshwater and sediment yield of the drainage-basin tributaries to prevent sedimentation in marginal areas, which exposed the city to the threat of invasions from the mainland.…”

Section: Fig 1 the Lagoon Of Venice In Its Present Configuration (2mentioning

confidence: 99%

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Assessing hydrological effects of human interventions on coastal systems: numerical applications to the Venice Lagoon

Ferrarin

Ghezzo

Umgiesser

et al. 2013

Hydrol. Earth Syst. Sci.

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Abstract. The hydrological consequences of historical, contemporary and future human activities on a coastal system were investigated by means of numerical models. The changes in the morphology of the Lagoon of Venice during the last century result from the sedimentological response to the combined effects of human interventions on the environment and global changes. This study focuses on changes from 1927 to 2012 and includes the changes planned for the protection of the city of Venice from storm surges and exceptional tides under future sea level rise scenarios. The application of a hydrodynamic model allowed for the analysis of the morphological effects on the lagoon circulation, the interaction with the sea and the internal mixing processes. The absolute values of the exchange between the lagoon and sea increased from 1927 to 2002 (from 3900 to 4600 m 3 s −1 ), while the daily fraction of lagoon water volume exchanged decreased. At the same time, the flattening of the lagoon and loss of morphological heterogeneity enhanced the internal mixing processes driven by the tide and wind, reducing thus the overall water renewal time from 11.9 days in 1927 to 10.8 days in 2002. Morphological changes during the last decade reduced the water exchange through the inlets and induced an increase of the basin-wide water renewal time of 0.5 day. In the future, Venice Lagoon will evolve to a more restricted environment due to sea level rise, which increases the lagoon volume, and periodical closure of the lagoon from the sea during flooding events, which reduces the communication with the open sea. Therefore, the flushing capacity of the lagoon will decrease considerably, especially in its central part. Furthermore, some considerations on the impact of the hydromorphological changes on the ecological dynamics are proposed.

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Response of the Venice Lagoon Ecosystem to Natural and Anthropogenic Pressures over the Last 50 Years

Cited by 88 publications

References 69 publications

An inverse model for the analysis of the Venice lagoon food web

An inverse model for the analysis of the Venice lagoon food web

Looking for patterns in the phytoplankton community of the Mediterranean microtidal Venice Lagoon: evidence from ten years of observations

Assessing hydrological effects of human interventions on coastal systems: numerical applications to the Venice Lagoon

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