Italy Archives - One Earth - One Ocean e. V. https://oneearth-oneocean.com/en/tag/italy-en/ Eine weitere WordPress-Website Wed, 05 Jul 2023 05:56:30 +0000 en-US hourly 1 https://wordpress.org/?v=6.5.5 https://oneearth-oneocean.com/wp-content/uploads/2022/08/cropped-oeoo-logo-unterzeile-blau-1-32x32.jpg Italy Archives - One Earth - One Ocean e. V. https://oneearth-oneocean.com/en/tag/italy-en/ 32 32 Microplastic pollution in the surface waters of Italian Subalpine Lakes https://oneearth-oneocean.com/en/international-marine-litter-database-en-en/2021/microplastic-pollution-in-the-surface-waters-of-italian-subalpine-lakes-2/ Tue, 16 Mar 2021 12:27:51 +0000 https://oneearth-oneocean.com/2021/03/16/microplastic-pollution-in-the-surface-waters-of-italian-subalpine-lakes-2/ Maria Sighicelli, Loris Pietrelli, Francesca Lecce, Valentina Iannilli, Mauro Falconieri, Lucia Coscia, Stefania Di Vito, Simone Nuglio, Giorgio Zampetti, Microplastic pollution in the surface waters of Italian Subalpine Lakes, Environmental Pollution, Volume 236, May 2018, Pages 645-651, ISSN 0269-7491, Abstract: Plastic debris incidence in marine environment was already highlighted in the early 1970s. Over the last decade, microplastic pollution in the environment has received increasing attention and is now an emerging research area. Many studies have focused on quantifying microplastic abundance in the marine environment, while there are relatively few data on microplastic occurrence in freshwater environment. Recent studies have reported high concentrations of microplastics in lakes and rivers, although the understanding of several factors influencing source, transport and fate is still limited. This study compares different lakes and the common factors, which could influence the occurrence and distribution of microplastics. The three subalpine lakes monitored include Lake Maggiore, Iseo and Garda. The selected sampling transects reflect the hydrologic conditions, the morphometric characteristics of these lakes, and other factors influencing the release of plastics debris in lakes. Particles of microplastics (<5 mm) were found in all sampled surfaces. The particles collected were classified depending on their number, shape and composition. The shape distribution showed the dominating occurrence of fragments (73.7%). The chemical composition of all examined samples clearly shows dominating presence of polyethylene (45%), polystyrene (18%) and polypropylene (15%). The results provide significant relations among the different contribution of direct and diffuse sources to the quantity of microplastics, highlighting the importance of understanding the spatial distribution dynamics of microplastics within a lake system that acts as a sink and source of plastic particles. https://drive.google.com/open?id=17EhMd98X_sc0TFyMcKfVPF2qI0GMoAJM https://doi.org/10.1016/j.envpol.2018.02.008. (https://www.sciencedirect.com/science/article/pii/S0269749117345074)

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]]> Maria Sighicelli, Loris Pietrelli, Francesca Lecce, Valentina Iannilli, Mauro Falconieri, Lucia Coscia, Stefania Di Vito, Simone Nuglio, Giorgio Zampetti,

Microplastic pollution in the surface waters of Italian Subalpine Lakes,

Environmental Pollution, Volume 236, May 2018, Pages 645-651, ISSN 0269-7491,

Abstract:
Plastic debris incidence in marine environment was already highlighted
in the early 1970s. Over the last decade, microplastic pollution in the
environment has received increasing attention and is now an emerging
research area. Many studies have focused on quantifying microplastic
abundance in the marine environment, while there are relatively few data
on microplastic occurrence in freshwater environment.

Recent studies have reported high concentrations of microplastics in lakes and rivers,
although the understanding of several factors influencing source,
transport and fate is still limited.

This study compares different lakes and the common factors, which could influence the
occurrence and distribution of microplastics. The three subalpine lakes monitored
include Lake Maggiore, Iseo and Garda. The selected sampling transects
reflect the hydrologic conditions, the morphometric characteristics of
these lakes, and other factors influencing the release of plastics
debris in lakes.
Particles of microplastics (<5 mm) were found in all
sampled surfaces. The particles collected were classified depending on
their number, shape and composition. The shape distribution showed the
dominating occurrence of fragments (73.7%). The chemical composition of
all examined samples clearly shows dominating presence of polyethylene
(45%), polystyrene (18%) and polypropylene (15%). The results provide
significant relations among the different contribution of direct and diffuse sources
to the quantity of microplastics, highlighting the importance of understanding the
spatial distribution dynamics of microplastics within a lake system that acts as a
sink and source of plastic particles.

https://drive.google.com/open?id=17EhMd98X_sc0TFyMcKfVPF2qI0GMoAJM

https://doi.org/10.1016/j.envpol.2018.02.008.

(https://www.sciencedirect.com/science/article/pii/S0269749117345074)

The post Microplastic pollution in the surface waters of Italian Subalpine Lakes appeared first on One Earth - One Ocean e. V..

]]> Baseline study of the distribution of marine debris on soft-bottom habitats associated with trawling grounds in the northern Mediterranean https://oneearth-oneocean.com/en/2009-en/2014/baseline-study-of-the-distribution-of-marine-debris-on-soft-bottom-habitats-associated-with-trawling-grounds-in-the-northern-mediterranean/ https://oneearth-oneocean.com/en/2009-en/2014/baseline-study-of-the-distribution-of-marine-debris-on-soft-bottom-habitats-associated-with-trawling-grounds-in-the-northern-mediterranean/#respond Thu, 06 Mar 2014 17:15:09 +0000 https://oneearth-oneocean.com/2014/03/06/baseline-study-of-the-distribution-of-marine-debris-on-soft-bottom-habitats-associated-with-trawling-grounds-in-the-northern-mediterranean/ Pilar Sánchez, Mercedes Masó, Raquel Sáez, Silvia de Juan, Alba Muntadas and Montserrat Demestre Baseline study of the distribution of marine debris on soft-bottom habitats associated with trawling grounds in the northern Mediterranean Sci. Mar. 77(2) : 247-255 - DOI: 10.3989/scimar03702.10A SUMMARY: The present study aims to analyse the local and regional variability in the density and typology of marine debris on fishing grounds on the northern Mediterranean continental shelf, and to test relationships between marine litter and trawl fishing activity. Moreover, the colonization of plastics was examined in order to study the importance of plastics as a source of impact on marine communities and their further environmental implications. This study surveyed 11 sites, associated with trawling grounds and subjected to different levels of fishing intensity, located in four areas of the Mediterranean: one in Italy, the Central Tyrrhenian coast, one in Greece, the eastern Ionian coast, and two in Spain, the Murcian and Catalan coasts. Samples were collected during an oceanographic cruise undertaken from the 21 May to the 24 June 2009. Results showed geographical variation in the density of marine debris which ranged from 0 to 405 pieces per hectare in the surveyed areas, plastics being the dominant components. Variability within sites was higher than between areas, indicating small-scale patchiness in the distribution of the debris over the seafloor. Though the study areas were within trawling grounds, the density of debris was not significantly correlated with fishing effort. More than 30% of plastics were between 10 and 20 cm width/length, and more than 40% of the plastics were colonized by a biofilm of microorganisms, suggesting indirect effects on benthic communities. Keywords: marine debris, seabed plastic accumulation, colonized benthic plastics, northern Mediterranean Sea. http://www.icm.csic.es/scimar/index.php/secId/6/IdArt/4196/ http://www.icm.csic.es/scimar/download.php/Cd/40cc43d564c7b4e36c99e817e931459f/IdArt/4196

The post Baseline study of the distribution of marine debris on soft-bottom habitats associated with trawling grounds in the northern Mediterranean appeared first on One Earth - One Ocean e. V..

]]> Pilar Sánchez, Mercedes Masó, Raquel Sáez, Silvia de Juan, Alba Muntadas and Montserrat Demestre Baseline study of the distribution of marine debris on soft-bottom habitats associated with trawling grounds in the northern Mediterranean Sci. Mar. 77(2) : 247-255 - DOI: 10.3989/scimar03702.10A SUMMARY: The present study aims to analyse the local and regional variability in the density and typology of marine debris on fishing grounds on the northern Mediterranean continental shelf, and to test relationships between marine litter and trawl fishing activity. Moreover, the colonization of plastics was examined in order to study the importance of plastics as a source of impact on marine communities and their further environmental implications. This study surveyed 11 sites, associated with trawling grounds and subjected to different levels of fishing intensity, located in four areas of the Mediterranean: one in Italy, the Central Tyrrhenian coast, one in Greece, the eastern Ionian coast, and two in Spain, the Murcian and Catalan coasts. Samples were collected during an oceanographic cruise undertaken from the 21 May to the 24 June 2009. Results showed geographical variation in the density of marine debris which ranged from 0 to 405 pieces per hectare in the surveyed areas, plastics being the dominant components. Variability within sites was higher than between areas, indicating small-scale patchiness in the distribution of the debris over the seafloor. Though the study areas were within trawling grounds, the density of debris was not significantly correlated with fishing effort. More than 30% of plastics were between 10 and 20 cm width/length, and more than 40% of the plastics were colonized by a biofilm of microorganisms, suggesting indirect effects on benthic communities. Keywords: marine debris, seabed plastic accumulation, colonized benthic plastics, northern Mediterranean Sea. 
http://www.icm.csic.es/scimar/index.php/secId/6/IdArt/4196/

http://www.icm.csic.es/scimar/download.php/Cd/40cc43d564c7b4e36c99e817e931459f/IdArt/4196


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