Influence of light conditions on the release of volatile halocarbons by Antarctic macroalgae
Abstract: Four species of red and green Antarctic macroalgae were exposed to various photon fluxes for periods of 6.45 and 17.45 h, respectively, and the release of 12 volatile halogenated compounds from chloromethane to diiodomethane was monitored. The results showed that variation of light conditi...
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Language: | English |
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1998
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ftunivantwerpen:c:irua:103991 2023-07-16T03:53:37+02:00 Influence of light conditions on the release of volatile halocarbons by Antarctic macroalgae Laturnus, Frank Wiencke, Christian Adams, Freddy 1998 https://hdl.handle.net/10067/1039910151162165141 eng eng info:eu-repo/semantics/altIdentifier/doi/10.1016/S0141-1136(98)00025-7 info:eu-repo/semantics/altIdentifier/isi/000074778100007 info:eu-repo/semantics/closedAccess 0141-1136 Marine environmental research Chemistry Biology Pharmacology. Therapy info:eu-repo/semantics/article 1998 ftunivantwerpen https://doi.org/10.1016/S0141-1136(98)00025-7 2023-06-26T22:16:24Z Abstract: Four species of red and green Antarctic macroalgae were exposed to various photon fluxes for periods of 6.45 and 17.45 h, respectively, and the release of 12 volatile halogenated compounds from chloromethane to diiodomethane was monitored. The results showed that variation of light conditions has an influence on the formation and release of volatile halocarbons, but no clear light-dependent relationships were found. In general, higher release rates were exhibited at no light or low photon fluxes. The higher release rates observed for the methyl halides at short photoperiods suggest that macroalgae could release halocarbons during conditions corresponding to those in the Antarctic winter and may support a concentration build up of these compound in the environment until spring. Therefore, macroalgae could indirectly contribute to the degradation of the stratospheric ozone layer over Antarctica each year in spring caused by halogens derived from the photochemical destruction of volatile halocarbons. (C) 1998 Elsevier Science Ltd. All rights reserved. Article in Journal/Newspaper Antarc* Antarctic Antarctica IRUA - Institutional Repository van de Universiteit Antwerpen Antarctic The Antarctic Marine Environmental Research 45 3 285 294 |
institution |
Open Polar |
collection |
IRUA - Institutional Repository van de Universiteit Antwerpen |
op_collection_id |
ftunivantwerpen |
language |
English |
topic |
Chemistry Biology Pharmacology. Therapy |
spellingShingle |
Chemistry Biology Pharmacology. Therapy Laturnus, Frank Wiencke, Christian Adams, Freddy Influence of light conditions on the release of volatile halocarbons by Antarctic macroalgae |
topic_facet |
Chemistry Biology Pharmacology. Therapy |
description |
Abstract: Four species of red and green Antarctic macroalgae were exposed to various photon fluxes for periods of 6.45 and 17.45 h, respectively, and the release of 12 volatile halogenated compounds from chloromethane to diiodomethane was monitored. The results showed that variation of light conditions has an influence on the formation and release of volatile halocarbons, but no clear light-dependent relationships were found. In general, higher release rates were exhibited at no light or low photon fluxes. The higher release rates observed for the methyl halides at short photoperiods suggest that macroalgae could release halocarbons during conditions corresponding to those in the Antarctic winter and may support a concentration build up of these compound in the environment until spring. Therefore, macroalgae could indirectly contribute to the degradation of the stratospheric ozone layer over Antarctica each year in spring caused by halogens derived from the photochemical destruction of volatile halocarbons. (C) 1998 Elsevier Science Ltd. All rights reserved. |
format |
Article in Journal/Newspaper |
author |
Laturnus, Frank Wiencke, Christian Adams, Freddy |
author_facet |
Laturnus, Frank Wiencke, Christian Adams, Freddy |
author_sort |
Laturnus, Frank |
title |
Influence of light conditions on the release of volatile halocarbons by Antarctic macroalgae |
title_short |
Influence of light conditions on the release of volatile halocarbons by Antarctic macroalgae |
title_full |
Influence of light conditions on the release of volatile halocarbons by Antarctic macroalgae |
title_fullStr |
Influence of light conditions on the release of volatile halocarbons by Antarctic macroalgae |
title_full_unstemmed |
Influence of light conditions on the release of volatile halocarbons by Antarctic macroalgae |
title_sort |
influence of light conditions on the release of volatile halocarbons by antarctic macroalgae |
publishDate |
1998 |
url |
https://hdl.handle.net/10067/1039910151162165141 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_source |
0141-1136 Marine environmental research |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/S0141-1136(98)00025-7 info:eu-repo/semantics/altIdentifier/isi/000074778100007 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1016/S0141-1136(98)00025-7 |
container_title |
Marine Environmental Research |
container_volume |
45 |
container_issue |
3 |
container_start_page |
285 |
op_container_end_page |
294 |
_version_ |
1771551105299251200 |