Plastic litter transfer from sediments towards marine trophic webs: A case study on holothurians.
Mar Pollut Bull
; 135: 376-385, 2018 Oct.
Article
em En
| MEDLINE
| ID: mdl-30301049
ABSTRACT
This study estimates for the very first time plastic litter levels in sea cucumbers (Echinodermata, Holothuroidea) sampled in situ and their intakes from sediments in three different rocky bottom habitats (slides, cliff, banks) settled in Salina Island (Aeolian Archipelago). Macroplastic were never recorded while meso- and microplastics were identified in all sediment (81-438 items/kg d.w.) and animal samples (1.8-22 items/ind.). Plastic intakes by sea cucumbers resulted frequently associated to the size range included within 100-2000⯵m. Over than 70% of ingested plastic litter is represented by the size fraction >500⯵m. Sediment/animals ratios % are included 2.7⯱â¯2.0% in studied habitats with a selective intake of fragments occurring in slides. Furthermore, results support the occurrence of selective ingestion of plastic litter by holothurians in natural environments underlining the role of these species in microplastic transfer from abiotic towards biotic compartments of the marine trophic web.
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Base de dados:
MEDLINE
Assunto principal:
Plásticos
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Pepinos-do-Mar
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Poluentes Químicos da Água
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Sedimentos Geológicos
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Ecotoxicologia
Idioma:
En
Ano de publicação:
2018
Tipo de documento:
Article