INTERAZIONI FRA MICROPLASTICHE E BATTERI IN DUE SITI DEL MAR TIRRENO: LA CAMPAGNA SEA PLASTICS 2021

Gabriella Caruso; Enrica Alasonati; Paola Fisicaro; Sandra Domenek; Manon Vichot; Helene Lovato; Fabiana Corami; Maurizio Azzaro; Maria Papale; Angelina Lo Giudice; Gianluca Corno; Catherine Loriot

Gabriella Caruso National Research Council
Enrica Alasonati Laboratoire National de Métrologie et d’Essais (LNE), Parigi
Paola Fisicaro Laboratoire National de Métrologie et d’Essais (LNE), Parigi,
Sandra Domenek AgroParisTech, Parigi,
Manon Vichot Sea Plastics Organization, Parigi
Helene Lovato Sea Plastics Organization, Parigi
Fabiana Corami Consiglio Nazionale delle Ricerche (CNR) - Istituto di Scienze Polari (ISP), Venezia Mestre
Maurizio Azzaro Consiglio Nazionale delle Ricerche (CNR) - Istituto di Scienze Polari (ISP), Messina
Maria Papale Consiglio Nazionale delle Ricerche (CNR) - Istituto di Scienze Polari (ISP), Messina
Angelina Lo Giudice Consiglio Nazionale delle Ricerche (CNR) - Istituto di Scienze Polari (ISP), Messina
Gianluca Corno Consiglio Nazionale delle Ricerche (CNR) - Istituto di Ricerca Sulle Acque (IRSA), Verbania Istituto di Scienze Polari (ISP),
Catherine Loriot Laboratoire National de Métrologie et d’Essais (LNE), Parigi

Keywords: plastic pollution, plastisphere, sampling methods, Tyrrhenian Sea

Abstract

As a first contribute to assess the effect of the collection device and the sampling site on the plastisphere distribution and metabolism, in May 2021 microplastics (MPs) were collected at two coastal Tyrrhenian stations [Naples Gulf (NA) and Castelsardo (SAR)] from surface (using Niskin bottles and Manta net) and along the water column (0-16 m) using a WP2 Plankton net. A significantly higher abundance of MPs were collected by the Niskin bottle, which collected also those <100 µm. Conversely, microbial community showed the highest activity rates in the samples collected with Manta net. Significant differences in the abundance and metabolic properties of plastic-associated bacteria underlined that the collection device, rather than the sampling site, affects the plastisphere assemblage.