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Original research — experimental, observational, or case-control study. Direct primary evidence.
Human Health Effects
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Plastic pellets make Excirolana armata more aggressive: Intraspecific interactions and isopod mortality differences between populations
The Science of The Total Environment2023
3 citations
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Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count.
Score: 45
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0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
Denis Moledo de Souza Abessa,
G.M. Izar,
G.M. Izar,
G.M. Izar,
G.M. Izar,
Caio Rodrigues Nobre,
Beatriz Barbosa Moreno,
Caio Rodrigues Nobre,
Caio Rodrigues Nobre,
Caio Rodrigues Nobre,
Caio Rodrigues Nobre,
Denis Moledo de Souza Abessa,
Denis Moledo de Souza Abessa,
Caio Rodrigues Nobre,
G.M. Izar,
Sabrina Teixeira Martinez,
Caio Rodrigues Nobre,
Caio Rodrigues Nobre,
Caio Rodrigues Nobre,
Beatriz Barbosa Moreno,
Caio Rodrigues Nobre,
Beatriz Barbosa Moreno,
Mikhael Vivas,
Beatriz Barbosa Moreno,
Beatriz Barbosa Moreno,
Sabrina Teixeira Martinez,
Mikhael Vivas,
Ivan Rodrigo Abrão Laurino
Tan Tjui Yeuw,
Tan Tjui Yeuw,
G.M. Izar,
Caio S.A. Felix,
Beatriz Barbosa Moreno,
Sabrina Teixeira Martinez,
Ivan Rodrigo Abrão Laurino
Tan Tjui Yeuw,
Beatriz Barbosa Moreno,
Ivan Rodrigo Abrão Laurino
Sabrina Teixeira Martinez,
Beatriz Barbosa Moreno,
Jaílson B. de Andrade,
Gisele O. da Rocha,
Caio Rodrigues Nobre,
Sabrina Teixeira Martinez,
Denis Moledo de Souza Abessa,
Gisele O. da Rocha,
Gisele O. da Rocha,
Sabrina Teixeira Martinez,
Jaílson B. de Andrade,
Caio Rodrigues Nobre,
Caio Rodrigues Nobre,
Caio Rodrigues Nobre,
Denis Moledo de Souza Abessa,
Denis Moledo de Souza Abessa,
Denis Moledo de Souza Abessa,
Denis Moledo de Souza Abessa,
Mikhael Vivas,
Mikhael Vivas,
Jaílson B. de Andrade,
Gisele O. da Rocha,
Jaílson B. de Andrade,
Mikhael Vivas,
Mikhael Vivas,
Paloma Kachel Gusso‐Choueri,
Beatriz Barbosa Moreno,
Ana Cecília Rizzatti de Albergaria‐Barbosa,
Ana Cecília Rizzatti de Albergaria‐Barbosa,
Denis Moledo de Souza Abessa,
Paloma Kachel Gusso‐Choueri,
Caio Rodrigues Nobre,
Denis Moledo de Souza Abessa,
Gisele O. da Rocha,
Denis Moledo de Souza Abessa,
Ana Cecília Rizzatti de Albergaria‐Barbosa,
Beatriz Barbosa Moreno,
Paloma Kachel Gusso‐Choueri,
Denis Moledo de Souza Abessa,
Ana Cecília Rizzatti de Albergaria‐Barbosa,
Denis Moledo de Souza Abessa,
Caio S.A. Felix,
G.M. Izar,
Paloma Kachel Gusso‐Choueri,
Caio S.A. Felix,
Beatriz Barbosa Moreno,
Ana Cecília Rizzatti de Albergaria‐Barbosa,
Beatriz Barbosa Moreno,
Beatriz Barbosa Moreno,
Ana Cecília Rizzatti de Albergaria‐Barbosa,
Sabrina Teixeira Martinez,
Denis Moledo de Souza Abessa,
Paloma Kachel Gusso‐Choueri,
Denis Moledo de Souza Abessa,
Denis Moledo de Souza Abessa,
Denis Moledo de Souza Abessa,
Gisele O. da Rocha,
Denis Moledo de Souza Abessa,
Paloma Kachel Gusso‐Choueri,
Ana Cecília Rizzatti de Albergaria‐Barbosa,
Ana Cecília Rizzatti de Albergaria‐Barbosa,
Jaílson B. de Andrade,
Jaílson B. de Andrade,
Caio Rodrigues Nobre,
Sabrina Teixeira Martinez,
Sabrina Teixeira Martinez,
Paloma Kachel Gusso‐Choueri,
Paloma Kachel Gusso‐Choueri,
Paloma Kachel Gusso‐Choueri,
Gisele O. da Rocha,
Paloma Kachel Gusso‐Choueri,
Gisele O. da Rocha,
Ana Cecília Rizzatti de Albergaria‐Barbosa,
Ana Cecília Rizzatti de Albergaria‐Barbosa,
Ana Cecília Rizzatti de Albergaria‐Barbosa,
Ana Cecília Rizzatti de Albergaria‐Barbosa,
Denis Moledo de Souza Abessa,
Denis Moledo de Souza Abessa,
Ivan Rodrigo Abrão Laurino
Summary
Exposure to plastic pellet leachates made the intertidal isopod Excirolana armata significantly more aggressive in intraspecific interactions, suggesting that chemical contamination from microplastics can alter animal behavior and potentially affect population dynamics.
Study Type
Environmental
Plastic pellets represent a significant component of microplastic (< 5 mm) pollution. Impacts caused by plastic pellets involve physical harm and toxicity related to ingestion and non-ingestion (such as the release of chemicals in leachates). The latter is the main route of exposure for invertebrate macrobenthic populations. This study aimed to compare the toxicity of plastic pellets in distinct marine macrobenthic populations, considering the influence of sediment characteristics (organic matter and grain size) and quality (contamination by hydrophobic chemicals) on ecotoxicological effects, as well as the influence of color on the toxicity of beach-stranded plastic pellets. We performed three experiments on plastic pellet exposure using Excirolana armata from beaches with high and low pellet density. When exposed to pellets, populations that inhabit beaches without pellets demonstrate higher mortality than those inhabiting beaches with high pellet densities. The mortality of E. armata to pellets was higher when the exposure occurred in sediment with high organic matter (OM), suggesting that chemicals were transferred from pellets to OM. Yellowish beach-stranded pellets induced higher mortality of E. armata than the white tones did. We also observed lethargic (near-dead) and dead individuals being preyed upon by healthy individuals, a cannibalistic behavior that raises an ecological concern regarding the negative effects of this exposure on intraspecific interactions in marine macrobenthic populations.