The vertical distribution of buoyant plastics at sea: an observationalstudy in the North Atlantic Gyre

Detalhes bibliográficos
Autor(a) principal: Reisser, Julia Wiener
Data de Publicação: 2015
Outros Autores: Slat, Boyan, Noble, Kimberly Denise, Plessis, Katherine Du, Epp, Meredith, Proietti, Maíra Carneiro, Sonneville, Jan de, Becker, Thomas, Pattiaratchi, Charitha
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.
id FURG_5ddf5eb4efda1287045675bc0e98a8c4
oai_identifier_str oai:repositorio.furg.br:1/5819
network_acronym_str FURG
network_name_str Repositório Institucional da FURG (RI FURG)
repository_id_str
spelling 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
_version_ 1813187261535092736