Microplastic contamination of the benthic invertebrate fauna in Terra Nova Bay (Ross Sea, Antarctica) was determined. Twelve macrobenthic species, characterized by different feeding strategies, were selected at 3 sampling sites at increasing distance from the Italian Scientific Base (Mario Zucchelli, Camp Icarus, Adelie Cove). The 83% of the analyzed macrobenthic species contained microplastics (0.01–3.29 items mg−1). The size of the particles, measured by Feret diameter, ranged from 33 to 1000 µm with the highest relative abundance between 50 and 100 µm. Filter-feeders and grazers displayed values of microplastic contamination from 3 to 5 times higher than omnivores and predators, leading to the hypothesis that there is no evident bioaccumulation through the food web. The prevalent polymers identified by micro-FTIR were nylon (86%) and polyethylene (5%); other polymers identified in Antarctic benthos were polytetrafluoroethylene, polyoxymethylene, phenolic resin, polypropylene, polystyrene resin and XT polymer.

Microplastic accumulation in benthic invertebrates in Terra Nova Bay (Ross Sea, Antarctica)

Sfriso, Andrea Augusto
Primo
;
Mistri, Michele
Penultimo
;
Munari, Cristina
Ultimo
2020

Abstract

Microplastic contamination of the benthic invertebrate fauna in Terra Nova Bay (Ross Sea, Antarctica) was determined. Twelve macrobenthic species, characterized by different feeding strategies, were selected at 3 sampling sites at increasing distance from the Italian Scientific Base (Mario Zucchelli, Camp Icarus, Adelie Cove). The 83% of the analyzed macrobenthic species contained microplastics (0.01–3.29 items mg−1). The size of the particles, measured by Feret diameter, ranged from 33 to 1000 µm with the highest relative abundance between 50 and 100 µm. Filter-feeders and grazers displayed values of microplastic contamination from 3 to 5 times higher than omnivores and predators, leading to the hypothesis that there is no evident bioaccumulation through the food web. The prevalent polymers identified by micro-FTIR were nylon (86%) and polyethylene (5%); other polymers identified in Antarctic benthos were polytetrafluoroethylene, polyoxymethylene, phenolic resin, polypropylene, polystyrene resin and XT polymer.
2020
Sfriso, Andrea Augusto; Tomio, Yari; Rosso, Beatrice; Gambaro, Andrea; Sfriso, Adriano; Corami, Fabiana; Rastelli, Eugenio; Corinaldesi, Cinzia; Mistr...espandi
File in questo prodotto:
File Dimensione Formato  
EnvInt_2020_MPbenthAntarct.pdf

accesso aperto

Descrizione: Articolo principale
Tipologia: Full text (versione editoriale)
Licenza: Creative commons
Dimensione 917.21 kB
Formato Adobe PDF
917.21 kB Adobe PDF Visualizza/Apri
appendix.pdf

accesso aperto

Tipologia: Altro materiale allegato
Licenza: Creative commons
Dimensione 458.43 kB
Formato Adobe PDF
458.43 kB Adobe PDF Visualizza/Apri

I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/2418738
Citazioni
  • ???jsp.display-item.citation.pmc??? 12
  • Scopus 161
  • ???jsp.display-item.citation.isi??? 140
social impact