Ocean acidification in the Baltic Sea: involved processes, metrology of pH in brackish waters, and calcification under fluctuating conditions
Globally, ocean acidification presents a threat to marine ecosystems. In the Baltic Sea, this process could so far not be quantified, partly due to a lack of appropriate pH observations. This study unravels a positive alkalinity trend in the Baltic Sea over the past two decades that counteracted aci...
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Universität Rostock Rostock
2018
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Online Access: | https://rosdok.uni-rostock.de/resolve/id/rosdok_disshab_0000001963 https://doi.org/10.18453/rosdok_id00002303 http://nbn-resolving.org/urn:nbn:de:gbv:28-diss2018-0135-7 http://purl.uni-rostock.de/rosdok/id00002303 |
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ftunivrostock:oai:oai.rosdok.uni-rostock.de:rosdok_disshab_0000001963 2023-10-09T21:54:50+02:00 Ocean acidification in the Baltic Sea: involved processes, metrology of pH in brackish waters, and calcification under fluctuating conditions Müller, Jens Daniel (gnd: 1168826969) Rehder, Gregor (gnd: 120186284) AkademischeR BetreuerIn Körtzinger, Arne (gnd: 141438428) AkademischeR BetreuerIn Wolf-Gladrow, Dieter (gnd: 121622312) AkademischeR BetreuerIn Universität Rostock (gnd: 38329-6) Grad-verleihende Institution Universität Rostock Mathematisch-Naturwissenschaftliche Fakultät (gnd: 2147083-2) Grad-verleihende Institution 2018 2018 https://rosdok.uni-rostock.de/resolve/id/rosdok_disshab_0000001963 https://doi.org/10.18453/rosdok_id00002303 http://nbn-resolving.org/urn:nbn:de:gbv:28-diss2018-0135-7 http://purl.uni-rostock.de/rosdok/id00002303 unknown Universität Rostock Rostock https://rosdok.uni-rostock.de/resolve/id/rosdok_disshab_0000001963 doi:10.18453/rosdok_id00002303 http://nbn-resolving.org/urn:nbn:de:gbv:28-diss2018-0135-7 http://purl.uni-rostock.de/rosdok/id00002303 all rights reserved open access 333.7 Natural resources energy and environment 540 Chemistry & allied sciences 624 Structural and Environmental Engineering doctoral thesis 2018 ftunivrostock https://doi.org/10.18453/rosdok_id00002303 2023-09-10T23:43:02Z Globally, ocean acidification presents a threat to marine ecosystems. In the Baltic Sea, this process could so far not be quantified, partly due to a lack of appropriate pH observations. This study unravels a positive alkalinity trend in the Baltic Sea over the past two decades that counteracted acidification. Further, state-of-the-art spectrophotometric pH measurements in brackish waters are enabled by characterizing pH buffer solutions and the indicator dye m-Cresol purple at low salinities. Finally, pH fluctuations and their implications for benthic ecosystems are examined. Global gefährdet die Ozeanversauerung marine Ökosysteme. In der Ostsee konnte dieser Prozess bisher mangels aussagekräftiger pH-Messungen nicht quantifiziert werden. Diese Arbeit beleuchtet einen langfristigen Anstieg der Ostsee-Alkalinität über die vergangen zwei Dekaden, welcher der Versauerung entgegenwirkte. Weiterhin wird die spektrophotometrische pH-Messmethode für Brackwasser eingeführt, indem pH-Pufferlösungen und der Farbstoff m-Kresolpurpur für niedrige Salzgehalte charakterisiert werden. Abschließend werden pH-Fluktuationen und deren Bedeutung für benthische Ökosysteme untersucht. Doctoral or Postdoctoral Thesis Ocean acidification Rostock University: RosDok - Rostocker Dokumentenserver |
institution |
Open Polar |
collection |
Rostock University: RosDok - Rostocker Dokumentenserver |
op_collection_id |
ftunivrostock |
language |
unknown |
topic |
333.7 Natural resources energy and environment 540 Chemistry & allied sciences 624 Structural and Environmental Engineering |
spellingShingle |
333.7 Natural resources energy and environment 540 Chemistry & allied sciences 624 Structural and Environmental Engineering Müller, Jens Daniel (gnd: 1168826969) Ocean acidification in the Baltic Sea: involved processes, metrology of pH in brackish waters, and calcification under fluctuating conditions |
topic_facet |
333.7 Natural resources energy and environment 540 Chemistry & allied sciences 624 Structural and Environmental Engineering |
description |
Globally, ocean acidification presents a threat to marine ecosystems. In the Baltic Sea, this process could so far not be quantified, partly due to a lack of appropriate pH observations. This study unravels a positive alkalinity trend in the Baltic Sea over the past two decades that counteracted acidification. Further, state-of-the-art spectrophotometric pH measurements in brackish waters are enabled by characterizing pH buffer solutions and the indicator dye m-Cresol purple at low salinities. Finally, pH fluctuations and their implications for benthic ecosystems are examined. Global gefährdet die Ozeanversauerung marine Ökosysteme. In der Ostsee konnte dieser Prozess bisher mangels aussagekräftiger pH-Messungen nicht quantifiziert werden. Diese Arbeit beleuchtet einen langfristigen Anstieg der Ostsee-Alkalinität über die vergangen zwei Dekaden, welcher der Versauerung entgegenwirkte. Weiterhin wird die spektrophotometrische pH-Messmethode für Brackwasser eingeführt, indem pH-Pufferlösungen und der Farbstoff m-Kresolpurpur für niedrige Salzgehalte charakterisiert werden. Abschließend werden pH-Fluktuationen und deren Bedeutung für benthische Ökosysteme untersucht. |
author2 |
Rehder, Gregor (gnd: 120186284) AkademischeR BetreuerIn Körtzinger, Arne (gnd: 141438428) AkademischeR BetreuerIn Wolf-Gladrow, Dieter (gnd: 121622312) AkademischeR BetreuerIn Universität Rostock (gnd: 38329-6) Grad-verleihende Institution Universität Rostock Mathematisch-Naturwissenschaftliche Fakultät (gnd: 2147083-2) Grad-verleihende Institution |
format |
Doctoral or Postdoctoral Thesis |
author |
Müller, Jens Daniel (gnd: 1168826969) |
author_facet |
Müller, Jens Daniel (gnd: 1168826969) |
author_sort |
Müller, Jens Daniel (gnd: 1168826969) |
title |
Ocean acidification in the Baltic Sea: involved processes, metrology of pH in brackish waters, and calcification under fluctuating conditions |
title_short |
Ocean acidification in the Baltic Sea: involved processes, metrology of pH in brackish waters, and calcification under fluctuating conditions |
title_full |
Ocean acidification in the Baltic Sea: involved processes, metrology of pH in brackish waters, and calcification under fluctuating conditions |
title_fullStr |
Ocean acidification in the Baltic Sea: involved processes, metrology of pH in brackish waters, and calcification under fluctuating conditions |
title_full_unstemmed |
Ocean acidification in the Baltic Sea: involved processes, metrology of pH in brackish waters, and calcification under fluctuating conditions |
title_sort |
ocean acidification in the baltic sea: involved processes, metrology of ph in brackish waters, and calcification under fluctuating conditions |
publisher |
Universität Rostock Rostock |
publishDate |
2018 |
url |
https://rosdok.uni-rostock.de/resolve/id/rosdok_disshab_0000001963 https://doi.org/10.18453/rosdok_id00002303 http://nbn-resolving.org/urn:nbn:de:gbv:28-diss2018-0135-7 http://purl.uni-rostock.de/rosdok/id00002303 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
https://rosdok.uni-rostock.de/resolve/id/rosdok_disshab_0000001963 doi:10.18453/rosdok_id00002303 http://nbn-resolving.org/urn:nbn:de:gbv:28-diss2018-0135-7 http://purl.uni-rostock.de/rosdok/id00002303 |
op_rights |
all rights reserved open access |
op_doi |
https://doi.org/10.18453/rosdok_id00002303 |
_version_ |
1779318554139557888 |