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Exploring microplastic contamination in Guiana dolphins (Sotalia guianensis): Insights into plastic pollution in the southwestern tropical Atlantic
Marine Pollution Bulletin2023
14 citations
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Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count.
Score: 50
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0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
Guilherme V.B. Ferreira,
Guilherme V.B. Ferreira,
Natascha Schmidt
Guilherme V.B. Ferreira,
Guilherme V.B. Ferreira,
Natascha Schmidt
Guilherme V.B. Ferreira,
Letícia Gonçalves Pereira,
Anne K.S. Justino,
Natascha Schmidt
Anne K.S. Justino,
Natascha Schmidt
Natascha Schmidt
Guilherme V.B. Ferreira,
Anne K.S. Justino,
Anne K.S. Justino,
Anne K.S. Justino,
Flávia Lucena‐Frédou,
Guilherme V.B. Ferreira,
Guilherme V.B. Ferreira,
Guilherme V.B. Ferreira,
Natascha Schmidt
Anne K.S. Justino,
Natascha Schmidt
Guilherme V.B. Ferreira,
Guilherme V.B. Ferreira,
Guilherme V.B. Ferreira,
Guilherme V.B. Ferreira,
Guilherme V.B. Ferreira,
Guilherme V.B. Ferreira,
Guilherme V.B. Ferreira,
Guilherme V.B. Ferreira,
Natascha Schmidt
Natascha Schmidt
Natascha Schmidt
Natascha Schmidt
Natascha Schmidt
Anne K.S. Justino,
Anne K.S. Justino,
Anne K.S. Justino,
Natascha Schmidt
Anne K.S. Justino,
Natascha Schmidt
Vincent Fauvelle,
Natascha Schmidt
Natascha Schmidt
Vincent Fauvelle,
Natascha Schmidt
Vincent Fauvelle,
Vincent Fauvelle,
Flávia Lucena‐Frédou,
Anne K.S. Justino,
Anne K.S. Justino,
Anne K.S. Justino,
Flávia Lucena‐Frédou,
Guilherme V.B. Ferreira,
Natascha Schmidt
Flávia Lucena‐Frédou,
Flávia Lucena‐Frédou,
Guilherme V.B. Ferreira,
Natascha Schmidt
Natascha Schmidt
Kelen Melo Tavares de Oliveira,
Natascha Schmidt
Natascha Schmidt
Kelen Melo Tavares de Oliveira,
Natascha Schmidt
Vincent Fauvelle,
Natascha Schmidt
Natascha Schmidt
Natascha Schmidt
Natascha Schmidt
Vincent Fauvelle,
Anne K.S. Justino,
Anne K.S. Justino,
Flávia Lucena‐Frédou,
Flávia Lucena‐Frédou,
Monique Torres de Queiroz,
Vincent Fauvelle,
Vincent Fauvelle,
Monique Torres de Queiroz,
Vincent Fauvelle,
Natascha Schmidt
Vincent Fauvelle,
Vincent Fauvelle,
Natascha Schmidt
Natascha Schmidt
Vincent Fauvelle,
Natascha Schmidt
Flávia Lucena‐Frédou,
Vincent Fauvelle,
Vincent Fauvelle,
Vincent Fauvelle,
Vincent Fauvelle,
Anne K.S. Justino,
Flávia Lucena‐Frédou,
Guilherme V.B. Ferreira,
Vítor Luz Carvalho,
Natascha Schmidt
Flávia Lucena‐Frédou,
Flávia Lucena‐Frédou,
Flávia Lucena‐Frédou,
Flávia Lucena‐Frédou,
Flávia Lucena‐Frédou,
Flávia Lucena‐Frédou,
Flávia Lucena‐Frédou,
Natascha Schmidt
Natascha Schmidt
Flávia Lucena‐Frédou,
Flávia Lucena‐Frédou,
Natascha Schmidt
Natascha Schmidt
Natascha Schmidt
Natascha Schmidt
Natascha Schmidt
Summary
Researchers examined microplastic contamination in Guiana dolphins (Sotalia guianensis) stranded along the southwestern tropical Atlantic coast by analyzing stomach contents. The study found that most individuals were contaminated with microplastics, with polyurethane, PET, and EVA being the most common polymers, underscoring the widespread nature of plastic pollution in marine food webs.
Marine mammals are considered sentinel species and may act as indicators of ocean health. Plastic residues are widely distributed in the oceans and are recognised as hazardous contaminants, and once ingested can cause several adverse effects on wildlife. This study aimed to identify and characterise plastic ingestion in the Guiana dolphins (Sotalia guianensis) from the Southwestern Tropical Atlantic by evaluating the stomach contents of stranded individuals through KOH digestion and identification of subsample of particles by LDIR Chemical Imaging System. Most of the individuals were contaminated, and the most common polymers identified were PU, PET and EVA. Microplastics were more prevalent than larger plastic particles (meso- and macroplastics). Smaller particles were detected during the rainy seasons. Moreover, there was a positive correlation between the stomach content mass and the number of microplastics, suggesting contamination through trophic transfer.