Data collected in October 2021 by CNR- ISMAR VE within the MAELSTROM project with the aim to map marine litter on the seafloor

Data collected in February 2022 by CNR- ISMAR VE within the MAELSTROM project with the aim to map marine litter on the seafloor

Data collected in May 2023 by CNR- ISMAR VE within the MAELSTROM project with the aim to map marine litter on the seafloor

Data collected in November 2022 by CNR- ISMAR VE within the MAELSTROM project with the aim to map marine litter on the seafloor

Data collected in May 2022 by CNR- ISMAR VE within the MAELSTROM project with the aim to map marine litter on the seafloor

The MAELSTROM Project performed a literature survey includes existing databases on marine litter data on the water column, sea floor, estuaries, rivers and beaches. Specifically, the European/Regional Seas review is based on existing publications while the study areas review is based on existing publications and raw data, when available. The review intends to provide the knowledge-base on the characteristics, sources and pathways of marine litter in the two demo sites of the lagoon of Venice (Italy) and the Ave River estuary (Portugal). Specifically, the review aims at: ● improving the understanding of the amounts and types of marine litter occurring in Europe and in particular in the study areas; ● improving the understanding of the main sources and pathways of marine litter in Europe and in particular in the study areas; ● supporting the definition of the input data and assumptions related to marine litter to be used in numerical models of marine litter spatial distribution. To achieve this objective, we assume the following constraints: ● the main focus is on macro-litter; ● the review has a geographic scope focused on the study sites; ● marine litter literature has been analysed to indicate the most probable sources and amount. Here the results related to the NW Portuguese coastal area. For more details, see the project deliverable: Ghezzo, M., MOSCHINO, V., Galvez, D., Mira Veiga, J., Bocci, M., Iglesias, I., Vieira, L., Sousa Pinto, I., Antunes, S. C., & Correia, A. M. (2021). D2.1 Report on the characterization of major sources of marine litter and macro-plastic in the demo sites. MAELSTROM Project. https://doi.org/10.5281/zenodo.14920205

The MAELSTROM Project performed a literature survey includes existing databases on marine litter data on the water column, sea floor, estuaries, rivers and beaches. Specifically, the European/Regional Seas review is based on existing publications while the study areas review is based on existing publications and raw data, when available. The review intends to provide the knowledge-base on the characteristics, sources and pathways of marine litter in the two demo sites of the lagoon of Venice (Italy) and the Ave River estuary (Portugal). Specifically, the review aims at: ● improving the understanding of the amounts and types of marine litter occurring in Europe and in particular in the study areas; ● improving the understanding of the main sources and pathways of marine litter in Europe and in particular in the study areas; ● supporting the definition of the input data and assumptions related to marine litter to be used in numerical models of marine litter spatial distribution. To achieve this objective, we assume the following constraints: ● the main focus is on macro-litter; ● the review has a geographic scope focused on the study sites; ● marine litter literature has been analysed to indicate the most probable sources and amount. Here the results related to the Adriatic Sea subregion that is characterised by the presence of many sources of marine litter, including large rivers, big coastal cities, touristic facilities, heavy shipping traffic, intense commercial fisheries and mussel farming. For more details, see the project deliverable: Ghezzo, M., MOSCHINO, V., Galvez, D., Mira Veiga, J., Bocci, M., Iglesias, I., Vieira, L., Sousa Pinto, I., Antunes, S. C., & Correia, A. M. (2021). D2.1 Report on the characterization of major sources of marine litter and macro-plastic in the demo sites. MAELSTROM Project. https://doi.org/10.5281/zenodo.14920205

The MAELSTROM Project performed a literature survey includes existing databases on marine litter data on the water column, sea floor, estuaries, rivers and beaches. Specifically, the European/Regional Seas review is based on existing publications while the study areas review is based on existing publications and raw data, when available. The review intends to provide the knowledge-base on the characteristics, sources and pathways of marine litter in the two demo sites of the lagoon of Venice (Italy) and the Ave River estuary (Portugal). Specifically, the review aims at: ● improving the understanding of the amounts and types of marine litter occurring in Europe and in particular in the study areas; ● improving the understanding of the main sources and pathways of marine litter in Europe and in particular in the study areas; ● supporting the definition of the input data and assumptions related to marine litter to be used in numerical models of marine litter spatial distribution. To achieve this objective, we assume the following constraints: ● the main focus is on macro-litter; ● the review has a geographic scope focused on the study sites; ● marine litter literature has been analysed to indicate the most probable sources and amount. Here the results related to the Venice lagoon and Venetian coastal area (demonstration site). For more details, see the project deliverable: Ghezzo, M., MOSCHINO, V., Galvez, D., Mira Veiga, J., Bocci, M., Iglesias, I., Vieira, L., Sousa Pinto, I., Antunes, S. C., & Correia, A. M. (2021). D2.1 Report on the characterization of major sources of marine litter and macro-plastic in the demo sites. MAELSTROM Project. https://doi.org/10.5281/zenodo.14920205

The MAELSTROM Project performed a literature survey includes existing databases on marine litter data on the water column, sea floor, estuaries, rivers and beaches. Specifically, the European/Regional Seas review is based on existing publications while the study areas review is based on existing publications and raw data, when available. The review intends to provide the knowledge-base on the characteristics, sources and pathways of marine litter in the two demo sites of the lagoon of Venice (Italy) and the Ave River estuary (Portugal). Specifically, the review aims at: ● improving the understanding of the amounts and types of marine litter occurring in Europe and in particular in the study areas; ● improving the understanding of the main sources and pathways of marine litter in Europe and in particular in the study areas; ● supporting the definition of the input data and assumptions related to marine litter to be used in numerical models of marine litter spatial distribution. To achieve this objective, we assume the following constraints: ● the main focus is on macro-litter; ● the review has a geographic scope focused on the study sites; ● marine litter literature has been analysed to indicate the most probable sources and amount. Here the results related to the Ave estuary Portuguese demonstration site. For more details, see the project deliverable: Ghezzo, M., MOSCHINO, V., Galvez, D., Mira Veiga, J., Bocci, M., Iglesias, I., Vieira, L., Sousa Pinto, I., Antunes, S. C., & Correia, A. M. (2021). D2.1 Report on the characterization of major sources of marine litter and macro-plastic in the demo sites. MAELSTROM Project. https://doi.org/10.5281/zenodo.14920205

As part of the European MAELSTROM project, passive acoustic monitoring (PAM) was conducted using a hydrophone deployed before and after the cleaning campaign carried out with a robotic platform at the Mussel Farm site. The primary aim of this acoustic monitoring was to analyze underwater soundscapes to detect the presence of soniferous organisms, with particular attention to fish and potentially invertebrate components.