Stefano Aliani

Stefano Aliani
Italian National Research Council | CNR · Institute of Marine Science ISMAR

Marine Sciences

About

154
Publications
99,278
Reads
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3,493
Citations
Additional affiliations
January 2000 - present
Italian National Research Council
Position
  • CNR - Consiglio Nazionale delle Ricerche
Education
January 1986 - June 1991
Università di Pisa
Field of study
  • Ecology and Marine Biology

Publications

Publications (154)
Article
The pollution of the environment with plastics is of growing concern worldwide, including the Arctic region. While larger plastic pieces are a visible pollution issue, smaller microplastics are not visible with the naked eye. These particles are available for interaction by Arctic biota and have become a concern for animal and human health. The det...
Chapter
This chapter provides a concise overview of the entire monograph by assembling summaries of 10 individual chapters starting with a global review of large-scale, persistent nutrient fronts of the World Ocean followed by regional chapters on the Arctic Ocean, North Atlantic, Baltic Sea, Kuroshio Current, and the Yellow Sea, a global review of CDOM dy...
Article
The Arctic Monitoring and Assessment Programme (AMAP) has published a plan and guidelines for the monitoring of litter and microplastics (MP) in the Arctic. Here we look beyond suggestions for immediate monitoring and discuss challenges, opportunities and future strategies in the long-term monitoring of litter and MP in the Arctic. Challenges are r...
Article
Kongsfjorden is an Arctic fjord located in the Svalbard archipelago. Its hydrography is influenced by the warm and saline Atlantic Water (AW) in the West Spitsbergen Current and the cold and fresh Polar Water circulating on the shelf. We assess the so-called atlantification of Kongsfjorden in the 2010–2020 decade by inspecting modifications in wate...
Chapter
Every year, vast quantities of plastic debris arrive at the ocean surface. Nevertheless, our understanding of plastic movements is largely incomplete and many of the processes involved with the horizontal and vertical displacement of plastics in the ocean are still basically unknown. In this chapter we review the dynamics associated with the transp...
Article
Full-text available
Litter and microplastic assessments are being carried out worldwide. Arctic ecosystems are no exception and plastic pollution is high on the Arctic Council’s agenda. Water and sediment have been identified as two of the priority compartments for monitoring plastics under the Arctic Monitoring and Assessment Programme (AMAP). Recommendations for mon...
Technical Report
Full-text available
The purpose of the guidelines is to review existing knowledge and provide guidance for designing an Arctic monitoring program that will track litter and MP. The topics of litter, plastic pollution, and MP are addressed in many fora, including several of the Arctic Council working groups: Arctic Monitoring and Assessment Programme (AMAP; https://www...
Article
Floating Marine Litter (FML) are mainly plastics or synthetic polymers that float on the sea surface after being deliberately discarded or unintentionally lost along beaches, rivers or marine environments. In recent years, much focus has been placed on locating, tracking and removing plastic items in both coastal areas and in the open ocean. The us...
Article
Full-text available
Atlantification of Arctic ocean is causing a sharp increase in temperature and salinity around Svalbard Islands and in Kongsfjorden. Such phenomenon and the input of sediment-rich glacial meltwater influence salinity, water column turbidity, and light penetration with ecological implications on the microbial features. With the aim to address the te...
Article
Full-text available
Windrow is a long-established term for the aggregations of seafoam, seaweeds, plankton and natural debris that appear on the ocean surface. Here, we define a “litter windrow” as any aggregation of floating litter at the submesoscale domain (<10 km horizontally), regardless of the force inducing the surface convergence, be it wind or other forces su...
Chapter
Many human perturbations have the potential of destabilizing the present functioning of the environment and marine plastic is one of them. Plastic debris was found everywhere on Earth, including polar waters. The Polarquest 2018 expedition around Svalbard (July and August 2018) used sustainable sail vessel Nanuq as a platform to sample microplastic...
Article
Full-text available
Microfibers are ubiquitous contaminants of emerging concern. Traditionally ascribed to the “microplastics” family, their widespread occurrence in the natural environment is commonly reported in plastic pollution studies, based on the assumption that fibers largely derive from wear and tear of synthetic textiles. By compiling a global dataset from 9...
Chapter
Full-text available
Textile microfibres are emerging pollutants with widespread distribution in natural environments [1, 2]. They are mostly discharged into wastewater from domestic washings [3] and arrive into the environment through wastewater effluents, aerial dry or wet deposition, or through the application of contaminated sludge on agricultural soils [4]. Microf...
Article
Full-text available
Marine plastic debris floating on the ocean surface is a major environmental problem. However, its distribution in the ocean is poorly mapped, and most of the plastic waste estimated to have entered the ocean from land is unaccounted for. Better understanding of how plastic debris is transported from coastal and marine sources is crucial to quantif...
Article
Full-text available
While macroplastics have been washing up on Southern Ocean islands for decades and microplastics have been found in seabirds from the region since 1960, there are still relatively few quantitative data on the amount of plastic pollution, especially with regard to floating plastics, at high southern latitudes. We present a baseline estimate of the a...
Article
Understanding which drivers cause diversity patterns is a key issue in conservation. Here we applied a spatially explicit model to predict marine benthic diversity patterns according to environmental factors in the NW Mediterranean Sea. While most conservation-oriented diversity studies consider species richness only and neglect equitability, we me...
Conference Paper
Full-text available
We report the results of a microfiber pollution survey performed in Mediterranean waters in 2017. Microfibers were found in all surface water samples collected with a mean concentration of 5.1 ± 2.3 fibers/liter. According to FTIR analysis (n=336), most of these fibers were made of non-synthetic materials such as cotton, cellulose and wool. Only 6....
Article
Full-text available
Marine ecosystems are experiencing substantial disturbances due to climate change and overfishing, and plastic pollution is an additional growing threat. Microfibres are among the most pervasive pollutants in the marine environment, including in the Southern Ocean. However, evidence for microfibre contamination in the diet of top predators in the S...
Article
Full-text available
Sustained observations are required to determine the marine plastic debris mass balance and to support effective policy for planning remedial action. However, observations currently remain scarce at the global scale. A satellite remote sensing system could make a substantial contribution to tackling this problem. Here, we make initial steps towards...
Article
Microfibres are one of the most ubiquitous particulate pollutants, occurring in all environmental compartments. They are often assumed to be microplastics, but include natural as well as synthetic textile fibres and are perhaps best treated as a separate class of pollutants given the challenges they pose in terms of identification and contamination...
Article
Full-text available
Plastics and other artificial materials pose new risks to health of the ocean. Anthropogenic debris travels across large distances and is ubiquitous in the water and on the shorelines, yet, observations of its sources, composition, pathways and distributions in the ocean are very sparse and inaccurate. Total amounts of plastics and other man-made...
Article
Full-text available
Maximenko et al. Integrated Marine Debris Observing System Plastics and other artificial materials pose new risks to the health of the ocean. Anthropogenic debris travels across large distances and is ubiquitous in the water and on shorelines, yet, observations of its sources, composition, pathways, and distributions in the ocean are very sparse an...
Article
Full-text available
We report the results of a visual survey of floating natural (NML) and anthropogenic (AML) macro-litter (>2.5 cm) performed in the central part of the Mediterranean Sea during a dual-use campaign onboard the Italian Navy tall ship “Amerigo Vespucci” which circumnavigated the Italian peninsula during May-June 2016. The distribution, abundance and co...
Article
Full-text available
Water mass generation and mixing in the eastern Fram Strait are strongly influenced by the interaction between Atlantic and Arctic waters and by the local atmospheric forcing, which produces dense water that substantially contributes to maintaining the global thermohaline circulation. The West Spitsbergen margin is an ideal area to study such proce...
Article
Full-text available
Background: Oceanographic moorings (OMs) are standard marine platforms composed of wires, buoys, weights and instruments, and are used as in situ observatories to record water column properties. However, OMs are also comprised of hard substrates on which a variety of invertebrates can settle when they encounter these structures along their dispers...
Article
Knowledge of the diversity of deep-sea polychaetes in the Mediterranean Sea is still scarce and fragmentary, due to the absence of comprehensive taxonomic revisions of several families, with the majority of recent works relying on higher level taxonomy. In the present work samples were collected with a box-corer along the Sardinian Slope, a bathyal...
Conference Paper
Full-text available
The Mediterranean Sea is one of the most polluted areas of the world with regard to microplastics. However, detailed knowledge about the spatial variability in microplastics abundance and composition is lacking. We present here the result of a large-scale survey of microplastic pollution in Mediterranean surface waters, demonstrating sub-basin scal...
Poster
Full-text available
Multidisciplinary monitoring of coastal and deep marine environments, with high temporal resolution, for a number of marine and atmospheric variables.
Article
Full-text available
High-latitude regions are warming faster than other areas due to reduction of snow cover and sea ice loss and changes in atmospheric and ocean circulation. The combination of these processes, collectively known as polar amplification, provides an extraordinary opportunity to document the ongoing thermal destabilisation of the terrestrial cryosphere...
Technical Report
Full-text available
Marine anthropogenic litter has long been recognised as an emerging pollutant of global concern. Its ubiquitous distribution and its direct and indirect impacts on aquatic ecosystems, marine fauna and local economies have been recently highlighted by several studies and international organisations around the world. Although comprised of different m...
Article
Full-text available
High latitude regions are warming faster than other areas due to reduction of snow cover, sea ice loss, changes in atmospheric and ocean circulation. The combination of these processes, collectively known as polar amplification, provides an extraordinary opportunity to document the ongoing thermal destabilisation of the terrestrial cryosphere and t...
Article
Full-text available
Among the various materials that make up marine debris, lumps of petroleum waxes such as paraffin and microcrystalline wax, are regularly found on beaches worldwide, although not included in the current definition of marine litter. Ingestion by marine organisms is occasionally documented in the scientific literature and mass beaching events are fre...
Conference Paper
Full-text available
The Italian Fixed-point Observatory Network (IFON) integrates well-established ocean infrastructures managed by various national research institutions (CNR, OGS, and ENEA). The implementation of this network was one of the aim of the SP5-WP3 of the Flagship Project RITMARE. In the first four years of the project, the state of art of the 15 operativ...
Conference Paper
Ship-based visual surveys are a powerful and inexpensive tool to monitor the abundance of floating macro-litter (FML) at sea, however the comparison among different studies is often hampered by substantial differences in counting techniques. Two main methods are currently used: distance sampling (line-transect) and strip transects (fixed-width), al...
Poster
Full-text available
The Mediterranean Sea is one of the most impacted regions of the world by marine litter, however detailed knowledge on the existing relationship between the distribution of different plastic size classes in off-shore environments is still limited. We present the results of a large-scale synoptic survey of floating macro (> 2 cm) and micro (< 5 mm)...
Article
Despite almost two centuries of research, the diversity of Mediterranean deep-sea environments remain still largely unexplored. This is particularly true for the polychaete family Syllidae. We report herein 14 species; among them, we describe Erinaceusyllis barbarae n. sp., Exogone sophiae n. sp. and Prosphaerosyllis danovaroi n. sp. and report Par...
Article
Full-text available
La presenza di macro e microplastica in mare è aumentata negli ultimi anni. L'interesse verso questo tema che colpisce molto l'immaginario collettivo ha generato ampia letteratura divulgativa e molti report di varie associazioni e organizzazioni. Questo lavoro fornisce informazioni scientifiche di base sulla quantità di plastica in ambiente marino...
Conference Paper
The Italian Fixed-point Observatory Network (IFON) integrates well-established ocean infrastructures managed by various national research institutions (CNR, OGS, and ENEA). The implementation of this network was one of the aim of the SP5-WP3 of the Flagship Project RITMARE. In the first four years of the project, the state of art of the 15 operativ...
Poster
Full-text available
The Mediterranean Sea is one of the most polluted areas of the world with regard to microplastics. However, detailed knowledge about the spatial variability in microplastics abundance and composition is lacking. We present here the result of a large-scale survey of microplastic pollution in Mediterranean surface waters, demonstrating sub-basin scal...
Article
Full-text available
This volume contains the main results of the EC FP7 “The Ocean of Tomorrow” Project CoCoNet, divided in two sections: 1) a set of guidelines to design networks of Marine Protected Areas in the Mediterranean and the Black Seas; 2) a smart wind chart that will allow evaluating the possibility of installing Offshore Wind Farms in both seas. The concep...
Article
Full-text available
Visual ship transect surveys provide crucial information about the density, and spatial distribution of floating anthropogenic litter in a basin. However, such observations provide a 'snapshot' of local conditions at a given time and cannot be used to deduce the provenance of the litter or to predict its fate, crucial information for management and...
Article
The polychaete assemblages from an escarpment area in the western Ionian Sea are characterised in terms of species richness, evenness and trophic composition. Moreover, the first occurrence of the genus Barantolla in the Mediterranean Sea, and of Lumbrinerides carpinei and Exogone (Parexogone) campoyi in Italian waters, is reported. Aricidea trilob...
Book
Full-text available
The Italian Fixed-point Observatory Network (IFON) integrates well-established ocean infrastructures managed by various national research institutions (CNR, OGS, and ENEA). The implementation of this network was one of the aim of the SP5-WP3 of the Flagship Project RITMARE. In the first four years of the project, the state of art of the 15 operativ...
Article
Full-text available
Marine plankton abundance and dynamics in the open and interior ocean is still an unknown field. The knowledge of gelatinous zooplankton distribution is especially challenging, because this type of plankton has a very fragile structure and cannot be directly sampled using traditional net based techniques. To overcome this shortcoming, Computer Visi...
Article
Full-text available
The Mediterranean Sea has been recently proposed as one of the most impacted regions of the world with regards to microplastics, however the polymeric composition of these floating particles is still largely unknown. Here we present the results of a large-scale survey of neustonic micro- and meso-plastics floating in Mediterranean waters, providing...