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Comparing microplastic ingestion in two commercial crustacean species, Aristaeomorpha foliacea and Parapenaeus longirostris: a sympatric case study from Western Mediterranean Sea

Zenodo (CERN European Organization for Nuclear Research) 2024
Laura Ciaralli, Tommaso Valente, Eleonora Monfardini, Eleonora Monfardini, Cecilia Silvestri, Cecilia Silvestri, Raffaella Piermarini, Raffaella Piermarini, Federico Rampazzo, Federico Rampazzo, Daniela Berto, Daniela Berto, Giorgia Gioacchini, Giorgia Gioacchini, Giulia Chemello, Marco Matiddi

Summary

Researchers examined microplastic ingestion in two sympatric deep-water shrimp species — Aristaeomorpha foliacea and Parapenaeus longirostris — collected from the same haul off the coast of Rome, combining stable isotope analysis of muscle tissue from 80 specimens with gastrointestinal tract analysis from 100 specimens subjected to chemical digestion. The study aimed to link trophic level and niche differences between the two economically important Mediterranean species to differences in their microplastic ingestion rates.

Body Systems
Digestive Musculoskeletal

The escalating contamination of our seas with plastic poses a serious threat to marine organisms. Among the various concerns, the ingestion of microplastics emerges as a potential hazard for marine organisms at various trophic levels. In order to shed light on the interplay between microplastic pollution and trophic dynamics, the present study couples stable isotope analysis (SIA) with the analysis of ingested microplastics in two sympatric shrimp species: Aristaeomorpha foliacea and Parapenaeus longirostris. This two target species, are economically valuable species, commonly found on sandy-muddy bottoms in the Mediterranean Sea, and displays similar feeding preference targeting polychaetes, crustaceans, fish and molluscs. A total of 180 specimens have been collected in the same haul off Rome coast, Italy (Central Tyrrhenian Sea, Western Mediterranean Sea). SIA was carried out on the muscle tissue of 80 specimens to discern the trophic level and the relationship between the trophic niche of the species. Besides, the gastrointestinal tracts of 100 specimens were dissected and subjected to chemical digestion (15 Also see: https://micro2024.sciencesconf.org/559593/document

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