The effect of interspecific and intraspecific diversity on microplastic ingestion in two co-occurring mussel species in South Africa.
Mar Pollut Bull
; 196: 115649, 2023 Nov.
Article
em En
| MEDLINE
| ID: mdl-37864858
ABSTRACT
Interspecific and intraspecific diversity are essential components of biodiversity with far-reaching implications for ecosystem function and service provision. Importantly, genotypic and phenotypic variation within a species can affect responses to anthropogenic pressures more than interspecific diversity. We investigated the effects of interspecific and intraspecific diversity on microplastic ingestion by two coexisting mussel species in South Africa, Mytilus galloprovincialis and Perna perna, the latter occurring as two genetic lineages. We found significantly higher microplastic abundance in M. galloprovincialis (0.54 ± 0.56 MP items g-1WW) than P. perna (0.16 ± 0.21 MP items g-1WW), but no difference between P. perna lineages. Microbeads were the predominant microplastic (76 % in P. perna, 99 % in M. galloprovincialis) and polyethylene the prevalent polymer. Interspecific differences in microplastic abundance varied across locations, suggesting diverse sources of contamination. We suggest that microplastic ingestion can be species-specific even in organisms that coexist and play similar functional roles within ecosystems.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Mytilus
/
Perna (Organismo)
Limite:
Animals
País/Região como assunto:
Africa
Idioma:
En
Revista:
Mar Pollut Bull
Ano de publicação:
2023
Tipo de documento:
Article