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Spatial variation of plastic debris on important turtle nesting beaches of the remote Chagos Archipelago, Indian Ocean

V. Hoare, N. Atchison Balmond, G.C. Hays, R. Jones, H. Koldewey, J.-O. Laloë, E. Levy, F. Llewellyn, H. Morrall, Nicole Esteban Orcid Logo

Marine Pollution Bulletin, Volume: 181, Start page: 113868

Swansea University Author: Nicole Esteban Orcid Logo

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DOI (Published version): 10.1016/j.marpolbul.2022.113868

Abstract

We report Anthropogenic Marine Debris (AMD) in Chagos Archipelago in the Indian Ocean, globally amongst the most isolated island groups. AMD on 14 island beaches in five atolls were surveyed in 2019 using two techniques: Marine Debris Tracker (MDT) along littoral vegetation and photoquadrats in open...

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Published in: Marine Pollution Bulletin
ISSN: 0025-326X
Published: Elsevier BV 2022
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URI: https://cronfa.swan.ac.uk/Record/cronfa60396
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spelling 2022-09-07T12:47:16.8331371 v2 60396 2022-07-07 Spatial variation of plastic debris on important turtle nesting beaches of the remote Chagos Archipelago, Indian Ocean fb2e760b83b4580e7445092982f1f319 0000-0003-4693-7221 Nicole Esteban Nicole Esteban true false 2022-07-07 SBI We report Anthropogenic Marine Debris (AMD) in Chagos Archipelago in the Indian Ocean, globally amongst the most isolated island groups. AMD on 14 island beaches in five atolls were surveyed in 2019 using two techniques: Marine Debris Tracker (MDT) along littoral vegetation and photoquadrats in open beach. Over 60 % of AMD in both beach zones was composed of plastics, especially bottles and fragments (mean = 44.9 %, 27.2 %, range = 16.5–73.2 %, 4.8–55.9 % respectively in vegetation; mean = 28.7 %, 31.5 %, range = 17.7–40.7 %, 11.6–60.0 % respectively in open beach). The density of plastic debris in littoral vegetation (MDT data: 1995 bottles, 3328 fragments per 100 m2) was 10-fold greater than in open beach (photoquadrat data: 184 bottles, 106 fragments per 100 m2). Significant latitudinal variation in vegetation AMD occurred (8-fold greater in southern atolls, p = 0.006). AMD varied within island zones: most debris observed on oceanside beaches (oceanside vs lagoon, W = 365, p < 0.001; ocean vs island tip, W = 107, p = 0.034). Standardisation of surveys using the open-source MDT App is recommended. Debris accumulation hotspots overlapped with sea turtle nesting habitat, guiding future beach clean-up prioritisation. Journal Article Marine Pollution Bulletin 181 113868 Elsevier BV 0025-326X Marine pollution; Coastal management; Marine turtle conservation; Coral reef atoll; Litter management; Beach clean 1 8 2022 2022-08-01 10.1016/j.marpolbul.2022.113868 Data availability:Data will be made available on request. COLLEGE NANME Biosciences COLLEGE CODE SBI Swansea University SU Library paid the OA fee (TA Institutional Deal) Bertarelli Foundation; BPMS-2017-4; DEFRA; Darwin Plus grant DPLUS090 2022-09-07T12:47:16.8331371 2022-07-07T15:03:30.6028195 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Biosciences V. Hoare 1 N. Atchison Balmond 2 G.C. Hays 3 R. Jones 4 H. Koldewey 5 J.-O. Laloë 6 E. Levy 7 F. Llewellyn 8 H. Morrall 9 Nicole Esteban 0000-0003-4693-7221 10 60396__24831__627f3ee710ab4bda89a80f5ec947ca95.pdf 60396_VoR.pdf 2022-08-03T15:36:08.4110775 Output 3814912 application/pdf Version of Record true © 2022 The Authors. This is an open access article under the CC BY license true eng http://creativecommons.org/licenses/by/4.0/
title Spatial variation of plastic debris on important turtle nesting beaches of the remote Chagos Archipelago, Indian Ocean
spellingShingle Spatial variation of plastic debris on important turtle nesting beaches of the remote Chagos Archipelago, Indian Ocean
Nicole Esteban
title_short Spatial variation of plastic debris on important turtle nesting beaches of the remote Chagos Archipelago, Indian Ocean
title_full Spatial variation of plastic debris on important turtle nesting beaches of the remote Chagos Archipelago, Indian Ocean
title_fullStr Spatial variation of plastic debris on important turtle nesting beaches of the remote Chagos Archipelago, Indian Ocean
title_full_unstemmed Spatial variation of plastic debris on important turtle nesting beaches of the remote Chagos Archipelago, Indian Ocean
title_sort Spatial variation of plastic debris on important turtle nesting beaches of the remote Chagos Archipelago, Indian Ocean
author_id_str_mv fb2e760b83b4580e7445092982f1f319
author_id_fullname_str_mv fb2e760b83b4580e7445092982f1f319_***_Nicole Esteban
author Nicole Esteban
author2 V. Hoare
N. Atchison Balmond
G.C. Hays
R. Jones
H. Koldewey
J.-O. Laloë
E. Levy
F. Llewellyn
H. Morrall
Nicole Esteban
format Journal article
container_title Marine Pollution Bulletin
container_volume 181
container_start_page 113868
publishDate 2022
institution Swansea University
issn 0025-326X
doi_str_mv 10.1016/j.marpolbul.2022.113868
publisher Elsevier BV
college_str Faculty of Science and Engineering
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hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Biosciences{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Biosciences
document_store_str 1
active_str 0
description We report Anthropogenic Marine Debris (AMD) in Chagos Archipelago in the Indian Ocean, globally amongst the most isolated island groups. AMD on 14 island beaches in five atolls were surveyed in 2019 using two techniques: Marine Debris Tracker (MDT) along littoral vegetation and photoquadrats in open beach. Over 60 % of AMD in both beach zones was composed of plastics, especially bottles and fragments (mean = 44.9 %, 27.2 %, range = 16.5–73.2 %, 4.8–55.9 % respectively in vegetation; mean = 28.7 %, 31.5 %, range = 17.7–40.7 %, 11.6–60.0 % respectively in open beach). The density of plastic debris in littoral vegetation (MDT data: 1995 bottles, 3328 fragments per 100 m2) was 10-fold greater than in open beach (photoquadrat data: 184 bottles, 106 fragments per 100 m2). Significant latitudinal variation in vegetation AMD occurred (8-fold greater in southern atolls, p = 0.006). AMD varied within island zones: most debris observed on oceanside beaches (oceanside vs lagoon, W = 365, p < 0.001; ocean vs island tip, W = 107, p = 0.034). Standardisation of surveys using the open-source MDT App is recommended. Debris accumulation hotspots overlapped with sea turtle nesting habitat, guiding future beach clean-up prioritisation.
published_date 2022-08-01T04:18:28Z
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score 11.014358

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