Journal article
Selectivity of marine-debris ingestion by juvenile green turtles (Chelonia mydas) at a South American World Heritage Listed area
Marine Pollution Bulletin, Vol.169, pp.1-8
08/2021
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Source: InCites
Abstract
Beaches in southern Brazil have substantial marine debris and strandings of dead juvenile green turtles (Chelonia mydas). This study investigates associations by quantifying marine debris (1) ingested among new (<40 cm curved carapace length; CCL) and older (≥40 cm CCL) juvenile C. mydas recruits; (2) concentrations on beach transects; and then (3) selective ingestion by C. mydas. Among 40 C. mydas (2014–2015), 93% had ingested debris, with smaller individuals having proportionally more. Sheet-like and hard plastics were the most frequently ingested, and commonly concentrated on beach transects. Estuarine beach transects had more debris than those facing the ocean. Selectivity analyses revealed all C. mydas avoided white miscellaneous debris and straws, while smaller conspecifics selected clear sheet-like plastics and avoided coloured ones. The results reiterate a need for long-term reforms to regional waste disposal and short-term initiatives encouraging social awareness to avoid key plastics and reduce ingestion by C. mydas.
Details
- Title
- Selectivity of marine-debris ingestion by juvenile green turtles (Chelonia mydas) at a South American World Heritage Listed area
- Creators
- Tawane Y Nunes - Universidade Federal do ParanáMatt K Broadhurst - Universidade Federal do ParanáCamila Domit - Universidade Federal do Paraná
- Publication Details
- Marine Pollution Bulletin, Vol.169, pp.1-8
- Publisher
- Elsevier Ltd
- Grant note
- This study was supported by Fundaç ̃ao Grupo Botic ́ario de Proteç ̃ao `a Natureza (Projeto BIOMAR), Fundaç ̃ao Arauc ́aria (Projeto ProTartas).
- Identifiers
- 991012948487602368
- Copyright
- © 2021 Elsevier Ltd. All rights reserved.
- Academic Unit
- Faculty of Science and Engineering; School of Environment, Science and Engineering; Science; National Marine Science Centre
- Language
- English
- Resource Type
- Journal article