The vertical distribution of buoyant plastics at sea: an observationalstudy in the North Atlantic Gyre
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da FURG (RI FURG) |
Texto Completo: | http://repositorio.furg.br/handle/1/5819 |
Resumo: | Millimetre-sized plastics are numerically abundant and widespread across the world’s ocean surface. These buoyant macroscopic particles can be mixed within the upper water column by turbulent transport. Models indicate that the largest decrease in their concentration occurs within the first few metres of water, where in situ observations are very scarce. In order to investigate the depth profile and physical properties of buoyant plastic debris, we used a new type of multi-level trawl at 12 sites within the North Atlantic subtropical gyre to sample from the air–seawater interface to a depth of 5 m, at 0.5m intervals. Our results show that plastic concentrations drop exponentially with water depth, and decay rates decrease with increasing Beaufort number. Furthermore, smaller pieces presented lower rise velocities and were more susceptible to vertical transport. This resulted in higher depth decays of plastic mass concentration (milligramsm����3) than numerical concentration (piecesm����3). Further multilevel sampling of plastics will improve our ability to predict at-sea plastic load, size distribution, drifting pattern, and impact on marine species and habitats. |
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Repositório Institucional da FURG (RI FURG) |
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The vertical distribution of buoyant plastics at sea: an observationalstudy in the North Atlantic GyreMillimetre-sized plastics are numerically abundant and widespread across the world’s ocean surface. These buoyant macroscopic particles can be mixed within the upper water column by turbulent transport. Models indicate that the largest decrease in their concentration occurs within the first few metres of water, where in situ observations are very scarce. In order to investigate the depth profile and physical properties of buoyant plastic debris, we used a new type of multi-level trawl at 12 sites within the North Atlantic subtropical gyre to sample from the air–seawater interface to a depth of 5 m, at 0.5m intervals. Our results show that plastic concentrations drop exponentially with water depth, and decay rates decrease with increasing Beaufort number. Furthermore, smaller pieces presented lower rise velocities and were more susceptible to vertical transport. This resulted in higher depth decays of plastic mass concentration (milligramsm����3) than numerical concentration (piecesm����3). Further multilevel sampling of plastics will improve our ability to predict at-sea plastic load, size distribution, drifting pattern, and impact on marine species and habitats.2016-01-19T20:37:29Z2016-01-19T20:37:29Z2015info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfREISSER, Julia Wiener et al. The vertical distribution of buoyant plastics at sea: an observationalstudy in the North Atlantic Gyre. Biogeosciences, v.12, n.4, p. 1249–1256,2015. Disponível em: <https://www.researchgate.net/publication/272823313_The_vertical_distribution_of_buoyant_plastics_at_sea_An_observational_study_in_the_North_Atlantic_Gyre>. Acesso em 19 Jan 2016.1726-4189http://repositorio.furg.br/handle/1/581910.5194/bg-12-1249-2015engReisser, Julia WienerSlat, BoyanNoble, Kimberly DenisePlessis, Katherine DuEpp, MeredithProietti, Maíra CarneiroSonneville, Jan deBecker, ThomasPattiaratchi, Charithainfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da FURG (RI FURG)instname:Universidade Federal do Rio Grande (FURG)instacron:FURG2016-01-19T20:37:29Zoai:repositorio.furg.br:1/5819Repositório InstitucionalPUBhttps://repositorio.furg.br/oai/request || http://200.19.254.174/oai/requestopendoar:2016-01-19T20:37:29Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG)false |
dc.title.none.fl_str_mv |
The vertical distribution of buoyant plastics at sea: an observationalstudy in the North Atlantic Gyre |
title |
The vertical distribution of buoyant plastics at sea: an observationalstudy in the North Atlantic Gyre |
spellingShingle |
The vertical distribution of buoyant plastics at sea: an observationalstudy in the North Atlantic Gyre Reisser, Julia Wiener |
title_short |
The vertical distribution of buoyant plastics at sea: an observationalstudy in the North Atlantic Gyre |
title_full |
The vertical distribution of buoyant plastics at sea: an observationalstudy in the North Atlantic Gyre |
title_fullStr |
The vertical distribution of buoyant plastics at sea: an observationalstudy in the North Atlantic Gyre |
title_full_unstemmed |
The vertical distribution of buoyant plastics at sea: an observationalstudy in the North Atlantic Gyre |
title_sort |
The vertical distribution of buoyant plastics at sea: an observationalstudy in the North Atlantic Gyre |
author |
Reisser, Julia Wiener |
author_facet |
Reisser, Julia Wiener Slat, Boyan Noble, Kimberly Denise Plessis, Katherine Du Epp, Meredith Proietti, Maíra Carneiro Sonneville, Jan de Becker, Thomas Pattiaratchi, Charitha |
author_role |
author |
author2 |
Slat, Boyan Noble, Kimberly Denise Plessis, Katherine Du Epp, Meredith Proietti, Maíra Carneiro Sonneville, Jan de Becker, Thomas Pattiaratchi, Charitha |
author2_role |
author author author author author author author author |
dc.contributor.author.fl_str_mv |
Reisser, Julia Wiener Slat, Boyan Noble, Kimberly Denise Plessis, Katherine Du Epp, Meredith Proietti, Maíra Carneiro Sonneville, Jan de Becker, Thomas Pattiaratchi, Charitha |
description |
Millimetre-sized plastics are numerically abundant and widespread across the world’s ocean surface. These buoyant macroscopic particles can be mixed within the upper water column by turbulent transport. Models indicate that the largest decrease in their concentration occurs within the first few metres of water, where in situ observations are very scarce. In order to investigate the depth profile and physical properties of buoyant plastic debris, we used a new type of multi-level trawl at 12 sites within the North Atlantic subtropical gyre to sample from the air–seawater interface to a depth of 5 m, at 0.5m intervals. Our results show that plastic concentrations drop exponentially with water depth, and decay rates decrease with increasing Beaufort number. Furthermore, smaller pieces presented lower rise velocities and were more susceptible to vertical transport. This resulted in higher depth decays of plastic mass concentration (milligramsm����3) than numerical concentration (piecesm����3). Further multilevel sampling of plastics will improve our ability to predict at-sea plastic load, size distribution, drifting pattern, and impact on marine species and habitats. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015 2016-01-19T20:37:29Z 2016-01-19T20:37:29Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
REISSER, Julia Wiener et al. The vertical distribution of buoyant plastics at sea: an observationalstudy in the North Atlantic Gyre. Biogeosciences, v.12, n.4, p. 1249–1256,2015. Disponível em: <https://www.researchgate.net/publication/272823313_The_vertical_distribution_of_buoyant_plastics_at_sea_An_observational_study_in_the_North_Atlantic_Gyre>. Acesso em 19 Jan 2016. 1726-4189 http://repositorio.furg.br/handle/1/5819 10.5194/bg-12-1249-2015 |
identifier_str_mv |
REISSER, Julia Wiener et al. The vertical distribution of buoyant plastics at sea: an observationalstudy in the North Atlantic Gyre. Biogeosciences, v.12, n.4, p. 1249–1256,2015. Disponível em: <https://www.researchgate.net/publication/272823313_The_vertical_distribution_of_buoyant_plastics_at_sea_An_observational_study_in_the_North_Atlantic_Gyre>. Acesso em 19 Jan 2016. 1726-4189 10.5194/bg-12-1249-2015 |
url |
http://repositorio.furg.br/handle/1/5819 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da FURG (RI FURG) instname:Universidade Federal do Rio Grande (FURG) instacron:FURG |
instname_str |
Universidade Federal do Rio Grande (FURG) |
instacron_str |
FURG |
institution |
FURG |
reponame_str |
Repositório Institucional da FURG (RI FURG) |
collection |
Repositório Institucional da FURG (RI FURG) |
repository.name.fl_str_mv |
Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG) |
repository.mail.fl_str_mv |
|
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1813187261535092736 |