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Microplastics in Vulnerable Catfish: Baseline Data from Northern Patagonia's Genidens Barbus

Authors: Maialen G. Ardusso; Aimé I. Funes; Andrea D. Tombari; Melisa F. Severini; Natalia S. Buzzi; Fabio Malanca; Guido Rimondino;

Microplastics in Vulnerable Catfish: Baseline Data from Northern Patagonia's Genidens Barbus

Abstract

Microplastics (MPs) contamination in aquatic ecosystems poses a rising environmental challenge with impacts on biota. This study provides the first assessment of MPs ingestion by the vulnerable Genidens barbus (white sea catfish) species in northern Patagonia, Argentina, aiming to evaluate their presence, abundance, type, and potential sources across two contrasting sites: Río Negro estuary (RNe) and San Blas Bay (SBb). MPs were extracted from stomachs with 10 % KOH digestion (48 h) and classified by size, type, and color, and characterized using micro Attenuated Total Reflectance-Infrared (μ-ATR) spectroscopy. Results show a high incidence of MPs, with 93 % of fish containing MPs (mean: 19 ± 17 items/fish), predominantly fibers (0.5–1.5 mm). No spatial differences were detected (mean values: 0.051 items g−1 in RNe and 0.057 items g−1 in SBb) and nor correlations with fish size. Chemical characterization revealed cellulose, polyethylene terephthalate, polypropylene, cotton-polyamide, polyacrylic, and alkyd resin, highlighting urban wastewater and fishing activities as probable sources. This study establishes baseline data of MPs pollution in G. barbus, a key fishery resource, and underscores the urgency of monitoring estuarine systems to mitigate impacts on vulnerable species.

Fil: Malanca, Fabio Ernesto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina

Fil: Rimondino, Guido Noé. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina

Fil: Fernandez Severini, Melisa Daiana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Argentino de Oceanografía. Universidad Nacional del Sur. Instituto Argentino de Oceanografía; Argentina

Fil: Ardusso, Maialen Gisel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Argentino de Oceanografía. Universidad Nacional del Sur. Instituto Argentino de Oceanografía; Argentina

Fil: Buzzi, Natalia Sol. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Argentino de Oceanografía. Universidad Nacional del Sur. Instituto Argentino de Oceanografía; Argentina

Fil: Funes, Aimé Itati. Universidad Nacional de Río Negro. Sede Atlántica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina

Fil: Tombari, Andrea Diana. Universidad Nacional de Río Negro. Sede Atlántica; Argentina. Centro de Investigación y Transferencia Río Negro; Argentina

Country
Argentina
Keywords

PLASTICS, FISH, https://purl.org/becyt/ford/1.5, ESTUARY, MICRODEBRIS, https://purl.org/becyt/ford/1

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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