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Article
Open AccessDecoupling of silica, nitrogen and phosphorus cycling in a meromictic subalpine lake (Lake Iseo, Italy)
Silica (Si), nitrogen (N) and phosphorus (P) loads and stoichiometry are key factors controlling the trophic status of lakes and coastal seas. In the hydrographic network, lakes also act as biogeochemical reac...
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Article
Open AccessRegulation of CO2 fluxes along gradients of water saturation in irrigation canal sediments
Hydrological intermittency affects sediment biogeochemistry, organic carbon (OC) metabolism and carbon dioxide (CO2) emission but the study of the effects of drying is generally confined to natural ecosystems. Ag...
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Article
Open AccessIntegrating habitat- and species-based perspectives for wetland conservation in lowland agricultural landscapes
Wetlands are among the most endangered ecosystems worldwide with multiple direct and indirect stressors, especially in human-altered areas like intensive agricultural landscapes. Conservation management and ef...
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Article
If Alpine streams run dry: the drought memory of benthic communities
Several mountain streams are currently changing from perennial to temporary regimes due to increasing water abstraction and global climate change with expected detrimental effects on stream biodiversity and fu...
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Article
European large perialpine lakes under anthropogenic pressures and climate change: present status, research gaps and future challenges
The aim of this review is to introduce and critically comment the main research topics considered in a selection of papers on the European large perialpine lakes (LPL) presented at the XXXIII congress of the I...
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Article
Persistence of meromixis and its effects on redox conditions and trophic status in Lake Idro (Southern Alps, Italy)
This paper reports a study of oxygen and redox conditions, trophic status, and phytoplankton community in the meromictic Lake Idro (Italy) from 2010 to 2014. The sequence of causes and effects of meromixis are...
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Article
Open AccessEnvironmental Drivers Controlling Bacterial and Archaeal Abundance in the Sediments of a Mediterranean Lagoon Ecosystem
The environmental factors controlling the abundance of Bacteria and Archaea in lagoon ecosystems are poorly understood. Here, an integrated physico-chemical, biogeochemical, and microbiological survey was applied...
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Article
Denitrification in a meromictic lake and its relevance to nitrogen flows within a moderately impacted forested catchment
We analysed the spatial and temporal variability of benthic nitrogen fluxes and denitrification rates in a sub-alpine meromictic lake (Lake Idro, Italy), and compared in-lake nitrogen retention and loss with t...
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Article
Preface: Wetlands biodiversity and processes—tools for conservation and management
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Article
Do oxic–anoxic transitions constrain organic matter mineralization in eutrophic freshwater wetlands?
This study aims at investigating decomposition processes in wetlands that are daily or seasonally exposed to intermittent oxic and anoxic conditions. We hypothesized that in wetland ecosystems where anoxia reg...
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Article
Benthic nitrogen metabolism in a macrophyte meadow (Vallisneria spiralis L.) under increasing sedimentary organic matter loads
Organic enrichment may deeply affect benthic nitrogen (N) cycling in macrophyte meadows, either promoting N loss or its recycling. This depends upon the plasticity of plants and of the associated microbial com...
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Article
Eutrophication of the Mediterranean Sea: a watershed—cascading aquatic filter approach
In this paper, we review causes, effects and trends of coastal eutrophication emphasizing the river-coastal zone interactions. The Po river—Northern Adriatic Sea system is discussed as a case study, being one ...
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Article
Influence of Potamogeton pectinatus and microphytobenthos on benthic metabolism, nutrient fluxes and denitrification in a freshwater littoral sediment in an agricultural landscape: N assimilation versus N removal
The influence of Potamogeton pectinatus colonisation on benthic nitrogen dynamics was studied in the littoral zone of a lowland pit lake with high nitrate concentration (~200 μM). Our hypothesis was that in aquat...
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Article
Remote sensing of phytoplankton-macrophyte coexistence in shallow hypereutrophic fluvial lakes
We investigated with remote sensing (APEX images) the coexistence of phytoplankton and macrophytes in three interconnected shallow and hypereutrophic fluvial lakes (Mantua Lakes, Northern Italy). High concentr...
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Article
Preface: Research and Management for the Conservation of Coastal Lagoon Ecosystems, South–North Comparisons
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Article
Net autotrophy in a fluvial lake: the relative role of phytoplankton and floating-leaved macrophytes
This study combined water- and sediment flux measurements with mass balances of dissolved gas and inorganic matter to determine the importance of pelagic and benthic processes for whole-system metabolism in a ...
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Article
Physical factors and dissolved reactive silica affect phytoplankton community structure and dynamics in a lowland eutrophic river (Po river, Italy)
We tested the hypothesis that species composition and persistence of phytoplankton communities in nutrient rich lowland rivers depends mainly on physical factors. The study aimed to analyse the effects of wate...
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Article
Short term changes in pore water chemistry in river sediments during the early colonization by Vallisneria spiralis
This study aims to investigate the effects of benthic vegetation colonization on pore water chemistry in river sediments with different organic matter and nutrient loadings. Shoots of Vallisneria spiralis L., sur...
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A Decision Support System for the Management of the Sacca di Goro (Italy)
This chapter addresses some results concerning the development of a Decision Support System (DSS) for the management of Southern European lagoons, and is particularly focused on the application of the proposed...
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Article
A rapid assessment of the sedimentary buffering capacity towards free sulphides
Combined field surveys and laboratory studies were conducted in two Italian coastal lagoons, which differ for geomorphology, hydrodynamics and eutrophication degree (Sacca di Goro and Lesina lagoons, Adriatic ...
