Pietro Volta

Pietro Volta
Italian National Research Council | CNR · Water Research Institute - Verbania Pallanza

PhD

About

90
Publications
41,804
Reads
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2,307
Citations
Citations since 2017
41 Research Items
1688 Citations
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20172018201920202021202220230100200300400500
20172018201920202021202220230100200300400500
Introduction
I am interested in lake ecology with emphasis on fish fauna. My present activities deal with: 1. Water quality and ecological status assessment of lakes. 2. Lacustrine food webs. 3. Freshwater fish conservation 4. Population dynamics and life-history traits of non native fish species in italian freshwaters. 5. Fisheries management
Education
October 2011 - October 2013
CNr - Institute of Ecosystem Study (ISE)
Field of study
  • Fish ecology
January 2006 - September 2011
CNR - Insitute of Ecosystem Study (ISE)
Field of study
  • Fish ecology
October 2002 - January 2006
Università degli Studi dell'Insubria
Field of study
  • Enviromental Sciences

Publications

Publications (90)
Preprint
Anthropogenic introgressive hybridization is increasingly common in many ecosystems, with inland waters being particularly sensitive to bioinvasions of interfertile non-native taxa. Salmonid native populations are detrimentally affected by such human-induced secondary contacts in several countries promoting sport and commercial salmonid fisheries....
Article
Full-text available
Fish stocking to enhance freshwater fisheries or to improve the conservation status of endangered fish species is a common practice in many countries. Little is known, however, of the effectiveness of these practices in spite of the high efforts and investments required. The movement of subadult/adult hatchery-released brown trout Salmo trutta L. w...
Poster
Full-text available
LIFE PREDATOR aims at contrasting the spread and further introductions of the invasive European catfish (Silurus glanis) contributing to the application of the EU IAS Regulation n. 1143/2014 in southern European lakes. An early detection system based on environmental DNA will be tested and developed in 50 lakes (23 in Italy, 25 in Portugal and 2 in...
Article
Full-text available
An organism's body size plays an important role in ecological interactions such as predator-prey relationships. As predators are typically larger than their prey, this often leads to a strong positive relationship between body size and trophic position in aquatic ecosystems. The distribution of body sizes in a community can thus be an indicator of...
Article
Full-text available
During the last 150 years, the trout-culture industry focused on enhancing trout populations by stocking, in response to the growing anglers’ demand and the habitat degradation associated to the rapid urbanization and hydropower development. The industrialized north of Italy, home to the Italian Alpine and subalpine trout populations, is the source...
Preprint
Full-text available
Fish stocking to enhance freshwater fisheries is a common practice in many countries. Little is known, however, on the real effectiveness of these practices in small creeks in spite of the high efforts and investments required. The movement of 998 subadult/adult hatchery brown trout released in a small tributary of Lake Lugano (i.e., Laveggio creek...
Article
In European lakes, anthropogenic pressures have increased significantly since the 1950s, facilitating colonisation by non-native species and increasing the potential for further invasions. Here, we determined the effects of anthropogenic pressures (i.e., habitat alterations and introduction of nonnative species) on the fish communities of Italian s...
Article
Full-text available
Climate is a major driver of species distribution and biological invasions worldwide. In this study, we combined the catches of a widespread and invasive species, the common carp (Cyprinus carpio), with climate data to assess the importance of climate variables on the ability of the species to maintain self-sustaining populations in European lakes....
Preprint
Full-text available
During the last 150 years, the trout-culture industry focused on enhancing trout populations by stocking, in response to the growing anglers’ demand and the habitat degradation associated to the rapid urbanization and hydropower development. The industrialized north of Italy, home to the Italian Alpine and subalpine trout populations, is the source...
Article
Full-text available
Wastewater treatment plants (WWTPs) efficiently retain microplastic particles (MPs) generated within urban areas. Among the wastewater treatment steps, disinfection has not been characterized for its potential MPs retention activity, although it has been reported that processes used to abate the bacterial load could also affect MPs concentration. F...
Article
The peninsular trout, commonly referred to as the “Mediterranean brown trout” and here classified as Salmo ghigii, has an important role in the ongoing conflict on fish stocking. The Italian law defines as autochthonous species or differentiated populations that are part of the original flora or fauna of a certain area, or that arrived there withou...
Article
Full-text available
Fish are the vertebrates that count most species on Earth. Compared with terrestrial tetrapods, fish are at the base of the evolutionary scale of vertebrates where they occupy the oldest position (ca. 400 million years). Fish hold an astonishing variability in shape, and during the long history of evolution they have colonised very diverse and remo...
Article
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The ecological features of invasive alien species are crucial for their effective management. However, they are often lacking in newly invaded ecosystems. This is the case of the European catfish Silurus glanis L. in Lake Maggiore, where the species is present since 1990, but no scientific information is available on its ecology. To start filling t...
Article
Full-text available
Research on microplastics (MPs) in the terrestrial environment is currently at a still embryonal stage. The current knowledge concerning poorly known diffuse sources of MPs pollution in terrestrial ecosystems have been considered in this work. In addition, a particular focus on the presence, mechanism of absorption and effects of MPs in plants has...
Preprint
Ecological information of invasive alien species are crucial for their effective management. How-ever, they are often lacking in newly invaded ecosystems. This is the case of the European catfish Silurus glanis L. in Lake Maggiore where the species is present since 1990 but no scientific infor-mation are available on its ecology. To start filling t...
Article
Full-text available
Microplastics (MPs) have received increasing attention in the last decade and are now considered among the most concerning emerging pollutants in natural environments. Here, the current knowledge on microplastic ingestion by wild freshwater fish is reviewed with a focus on the identification of possible factors leading to the ingestion of MPs and t...
Article
Triggered by the adoption of the Water Framework Directive, a variety of fish-based systems were developed throughout Europe to assess the ecological status of lakes. This paper provides a comprehensive overview of all existing systems and summarizes sampling methods, fish community traits (metrics) and the relevant anthropogenic pressures assessed...
Article
Full-text available
Microplastic particles (MPs) contamination of aquatic environments has raised a growing concern in recent decades because of their numerous potential toxicological effects. Although fish are among the most studied aquatic organisms, reports on MPs ingestion in freshwater environments are still scarce. Thus, there is still much to study to understan...
Article
Microplastic Particles (MPs) are ubiquitous pollutants widely found in aquatic ecosystems. Although MPs are mostly retained in wastewater treatment plants (WWTPs), a high number of MPs reaches the open waters potentially contributing to the spread of pathogenic bacteria and antibiotic resistance genes in the environment. Nowadays, a limited number...
Article
Full-text available
Aim: We tested whether there is a strong effect of species interactions on assembly of local lake fish communities, in addition to environmental filters and dispersal. Location: Seven hundred and seventy-two European lakes and reservoirs. Time period: 1993-2012. Major taxa studied: Nineteen species of freshwater fishes. Methods: We applied a laten...
Article
Full-text available
The fauna of the Apennine Peninsula is, in comparison to other southern European peninsulas, relatively species-poor regarding the number of endemic cyprinoid species. Nonetheless, the recent introduction of non-native species has significantly increased the total number of freshwater species in this region. Such invasive species may represent a th...
Article
Full-text available
In the last century, Italian freshwater ecosystems have been invaded by several non-native fish species. In the subalpine Lake Mergozzo (northern Italy), several recently introduced non-native species dramatically expanded their populations. We used carbon and nitrogen stable isotopes to describe the isotopic niches and trophic positions of native...
Article
Full-text available
Climate warming can restructure lake food webs if trophic levels differ in their thermal responses, but evidence for these changes and their underlying mechanisms remain scarce in nature. Here we document how warming lake temperatures by up to 2°C, rather than changes in trophic state or fishing effort, have restructured the pelagic food web of a l...
Article
Full-text available
The biomagnification of mercury, polychlorobiphenyls (PCBs), dichlorodiphenyltrichloroethane and its metabolites (DDTs) and perfluoroalkyl acids substances (PFASs) was evaluated in the trophic web of Lake Mergozzo, a small and deep Italian subalpine lake, which has been chosen because it is a protected environment, and discharges into the lake are...
Article
Full-text available
Globally, our knowledge on lake fisheries is still limited despite their importance to food security and livelihoods. Here we show that fish catches can respond either positively or negatively to climate and land-use changes, by analyzing time-series data (1970–2014) for 31 lakes across five continents. We find that effects of a climate or land-use...
Article
Full-text available
Plastic is one of the most commonly produced and used materials in the world due to its outstanding features. However, the worldwide use of plastics and poor waste management have led to negative impacts on ecosystems. Plastic degradation in the environment leads to the generation of plastic particles with a size of <5 mm, which are defined as micr...
Article
Fish community feeding and production rates may differ between lakes despite similar fish biomass levels because of differences in size structure and local temperature. Therefore, across-lake comparisons of the strength and direction of top-down and bottom-up fish–phytoplankton relationships should consider these factors. We used the metabolic theo...
Article
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DDx, PCBs, PBDEs, Hg, and As contamination in sediments and aquatic organisms of different trophic levels (zooplankton, mussel, fish) were analyzed in Lake Maggiore and Lake Lugano, two large deep perialpine lakes. In the period 2001–2015, we analyzed the spatial and temporal trends of the considered pollutants to detect potential contamination sou...
Article
Full-text available
We provide a comprehensive overview of the status of fish assemblages in eight Italian subalpine lakes using multiple data sources: historical records, standardised sampling and fishery catch statistics. Thirty-four fish species were recorded, twenty of which are native, seven introduced historically and another seven introduced recently. The numbe...
Article
Determination of 20 PFASs in a fish species (Alosa agone) of commercial interest has been carried out in five Italian subalpine lakes to assess the risk for humans and predators for fish consumption. PFOS still presents the highest concentrations (0.9–16.6 ng g⁻¹ ww) among the analysed PFASs, in spite of its normative restrictions. PFOS concentrati...
Article
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Invasion of non-native species is considered a major threat to global biodiversity. Here we present a comprehensive overview of the occurrence, richness and biomass contribution of non-native fish species in 1943 standing water bodies from 14 countries of the Western Palearctic, based on standardised fish catches by multi-mesh gillnetting. We expec...
Article
Full-text available
p>Through cascading effects within lake food webs, commercial and recreational fisheries may indirectly affect the abundances of organisms at lower trophic levels, such as phytoplankton, even if they are not directly consumed. So far, interactive effects of fisheries, changing trophic state and climate upon lake ecosystems have been largely overloo...
Technical Report
Full-text available
In the previous report (D4.1, September 2016) we have developed predictive linkages between indicators of environmental quality and ecosystem services, and different types of pressures, single or multiple, across river basins from all over Europe, in a latitudinal and a west-east gradient, and having very different conditions of climate and land us...
Technical Report
Full-text available
The report includes and examines the list of taxonomists from IAMC (Institute for Coastal Marine Environment), IGG (Institute of Geosciences and Earth Resources), ISE (Institute of Ecosystem Study), and ISMAR (Institute of Marine Sciences), who responded to the Taxonomy Census 2016, their scientific publications and the number of taxa described new...
Article
Here we provide the metadata for an overview on fish species presence/absence in 1943 Palearctic (Europe + Turkey) lakes and reservoirs. The data have been obtained by standardized multi-mesh gillnet fishing, primarily to fulfill the requirements of the European Water Framework Directive (WFD). The species list encompasses about 100 species, a few...
Article
Full-text available
We present a data set on the biodiversity of Italian freshwaters, including lakeshores and riverbanks of natural (N=379: springs, streams and lakes) and artificial (N=11: fountains) sites. The data set belongs partly to the Italian Long Term Ecological Research network (LTER-Italy) and partly to LifeWatch, the European e-Science infrastructure for...
Article
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Since 1926, the fishes in Lake Orta, one of Italy’s deepest natural lakes, were heavily damaged by profundal hypoxia and acidification linked to oxidation of ammonia from industrial effluents and by industrial metal pollution. Of the original 28 fish species, only perch survived the lake’s contamination. Recently, the water quality of the lake has...
Article
Full-text available
Ettore Grimaldi (1934-2015) was one of the brightest and active ichthyologists in Italy. He was a man of great enthusiasm, boundless energy and great curiosity. He was a person with an open mind. He originally visited the Institute of Pallanza in June 1957 as a master student at the Faculty of Veterinary Medicine, University of Milan. He was formal...
Article
We studied fish size structure by using mean size, size diversity, and the slope of linear size spectra of six common European fish species along large-scale environmental gradients. We further analyzed the response of these three size metrics to environmental variables and to density-dependent effects, i.e., relative estimates of abundance (catch...
Article
Full-text available
Planktivorous and benthivorous fish have been documented to influence the density and size structure of their prey communities in lakes. We hypothesized that piscivorous fish modify their prey fish communities in the same way and sought to find evidence for such predation effects from a comparison across 356 lakes located in nine European ecoregion...
Conference Paper
Full-text available
Large scale studies on individual size distribution of fish have primarily been done at community level, but little attention is paid at species level. We described fish size structure by using mean size, size diversity and the slope of linear size spectra of six common European fish species to compare whether these metrics responded to the same la...
Article
Aim Our aim was to document geographical patterns of variation in the bodysize structure of European lake fish assemblages along abiotic gradients, and any differences in fish assemblage structure. We hypothesized that patterns in the body-size structure of entire lake fish assemblages are primarily temperature driven and consistent with the domina...
Article
Full-text available
Freshwater ecosystems and their biodiversity are presently seriously threatened by global development and population growth, leading to increases in nutrient inputs and intensification of eutrophication-induced problems in receiving fresh waters, particularly in lakes. Climate change constitutes another threat exacerbating the symptoms of eutrophic...
Article
The systematic is still unresolved for the genus Squalius (Cyprinidae, Leuciscinae), a rich group of small to large fishes widely distributed throughout Europe. The distinction of one of the Italian narrowly endemic species, Squalius albus ( Bonaparte, 1838), described for the area surrounding lake Trasimeno, from the more common and widespread Squ...
Conference Paper
Variations in the size structure of fish communities were explored at European scale along gradients of climate, morphometry, productivity and fish community structure in more than 1800 lakes. Size metrics used were average fish body size, individual size distributions and size diversity. Analyses were conducted at both continental and regional sca...
Article
Our aim was to document geographical patterns of variation in the body-size structure of European lake fish assemblages along abiotic gradients, and any differences in fish assemblage structure. We hypothesized that patterns in the body-size structure of entire lake fish assemblages are primarily temperature driven and consistent with the dominant...
Article
Full-text available
Because of the reduction in the use of polybrominated diphenyl ethers (PBDEs) and hexabromocyclododecane (HBCD), novel brominated flame retardants (NBFRs), including 1,2-bis(2,4,6-tribromophenoxy) ethane (BTBPE), decabromodiphenyl ethane (DBDPE), hexabromobenzene (HBB), and pentabromoethylbenzene (PBEB), started to be marketed as alternatives to th...
Article
Full-text available
In 1990, in order to celebrate the 50th anniversary of the former Italian Institute of Hydrobiology, now Institute of Ecosystem Study, a special issue summarising the advances in limnology was published by Memorie dell’Istituto Italiano di Idrobiologia, now Journal of Limnology. After 25 years, it is time again for a synthesis of what limnology did...
Article
Full-text available
1. Introduction of alien species is one of the major threats to aquatic biota and knowledge of the major correlates of their occurrence is pivotal in planning reliable conservation strategies. 2. To understand whether specific freshwater habitats are more likely to be invaded than others, a dataset on the occurrence of 1604 species in 54 taxonomic...
Book
Full-text available
One of the key actions identified by the Water Framework Directive (WFD; 2000/60/EC) is to develop ecological assessment tools and carry out a European intercalibration (IC) exercise. The aim of the Intercalibration is to ensure that the values assigned by each Member State to the good ecological class boundaries are consistent with the Directive’s...
Technical Report
Full-text available
La valutazione dello stato di conservazione di biodiversità, funzioni e servizi degli ecosistemi di acque interne e la stima della loro vulnerabilità ai cambiamenti climatici sono affrontate considerando tipologie omogenee di ecosistemi acquatici, alla scala integrata del bacino idrografico e della zona di transizione adiacente. Gli ecosistemi acqu...
Article
Full-text available
Quantitative estimates were provided for seasonality in littoral and pelagic sources supporting the three most important planktivorous fish (Coregonus lavaretus, Alosa agone, Rutilus rutilus ≤ 3yr) of a deep, large, subalpine lake (Lake Maggiore, Italy) by using δ13C and δ15 N stable isotope analysis. Contribution of pelagic (p) and littoral (q) si...
Article
Full-text available
We present an example of how an invasion by a non-native cyprinid (common bream, Abramis brama (Pisces: Cyprinidae), hereafter bream) in a natural shallow lake in southern Europe (Lake Montorfano, northern Italy) may have adversely affected the state of the lake’s ecosystem. In less than two decades, bream became the most abundant species and chara...
Article
Full-text available
Invasions by non-native species are increasingly detected all over the World, as a consequence of globalization. Successful establishment implies the presence of unexploited niches and/or competitive advantage of invader vs. native closely related species. As a consequence, invasion also impacts functional diversity and trophic relationships in eco...
Article
1. We aimed to distinguish the relative contributions of natural and anthropogenic local factors on patterns of fish diversity in European lakes at different geographical scales. 2. We compiled data from standardised fish monitoring using multimesh benthic gill nets, information on lake morphometry and on geographical, climatic and anthropogenic pr...
Article
Full-text available
We describe the population biology and life-history traits of two Eurasian ruffe (Gymnocephalus cernuus (L.), Pisces: Percidae) populations which have recently colonised two small lakes in the Lake Maggiore catchment of northern Italy, eutrophic Lake Ghirla (ruffe first recorded in the early 1990s) and oligotrophic Lake Mergozzo (ruffe first record...
Technical Report
This report summarizes the finding of the InHabit project on the importance of atmospheric nitrogen deposition in affecting the chemical composition of lake water and in eventually altering the biological communities living in them. Previous deliverables (I2d5, Id26 and I2d7) have shown that; 1. in both regions studied in the InHabit project (Piedm...
Book
Full-text available
In the Water Framework Directive (WFD), biological quality elements (BQEs) play a major role in allowing the evaluation of the ecological quality of waterbodies. Within the WFD, the request for a classification of waterbodies based on their ecological quality is accompanied by the need of an estimation of precision and reliability of the results of...
Article
1. Sampling of lake fish assemblages is a challenging task in fish science, and the information obtained strongly depends on the choice of sampling gear. The use of more than one sampling technique is generally preferred in order to achieve a comprehensive view on fish assemblage structure. Therefore, the knowledge of whether catches between fishin...
Article
Full-text available
Fish play a key role in the trophic dynamics of lakes. With climate warming, complex changes in fish assemblage structure may be expected owing to direct effects of temperature and indirect effects operating through eutrophication, water level changes, stratification and salinisation. We reviewed published and new long-term (10–100 years) fish data...