Habitat-Forming Seaweeds in a Changing Climate
Climate change is an umbrella term encompassing some of the largest and most potent selective pressures currently acting on ecosystems. It can have diverse effects on marine systems; the most powerful of which are changes to salinity through altered patterns of precipitation and evaporation, tempera...
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ftunivgoeteborg:oai:gupea.ub.gu.se:2077/68048 2023-10-29T02:39:18+01:00 Habitat-Forming Seaweeds in a Changing Climate Kinnby, Alexandra 2021-05-19 application/pdf http://hdl.handle.net/2077/68048 eng eng PAPER I: Kinnby, A., Jonsson, P. R., Ortega-Martinez, O., Töpel, M., Pavia, H., Pereyra, R. T., & Johannesson, K. (2020). Combining an Ecological Experiment and a Genome Scan Show Idiosyncratic Responses to Salinity Stress in Local Populations of a Seaweed. Frontiers in Marine Science, 7, 470. ::doi::10.3389/fmars.2020.00470 PAPER II: Kinnby, A., White, J.C.B., Toth, G.B., & Pavia, H. (2021). Ocean acidification decreases grazing pressure but alters morphological structure in a dominant coastal seaweed. PloS one, 16(1), e0245017. ::doi::10.1371/journal.pone.0245017 PAPER III: Kinnby, A., Cervin, G., Larsson, A.I., Edlund, U., Toth, G.B., & Pavia, H. Increased risk of tissue breakage in habitat-forming seaweeds under ocean acidification. (Manuscript). PAPER IV: Kinnby A. Toth G.B. & Pavia H. Climate change increases susceptibility to grazers in a foundation seaweed. (In review). PAPER V: Kinnby, A., Johannesson, K., Cervin, G., & Pavia, H. Effects of ocean acidification and warming on fertilization success and germination in Fucus vesiculosus. (Manuscript). 978-91-8009-360-6 http://hdl.handle.net/2077/68048 Ocean acidification Warming Freshening Temperature Salinity pH pCO2 Fucus vesiculosus Phlorotannins Grazing Tissue resilience Macroalgae text Doctoral thesis Doctor of Philosophy 2021 ftunivgoeteborg 2023-10-04T21:09:59Z Climate change is an umbrella term encompassing some of the largest and most potent selective pressures currently acting on ecosystems. It can have diverse effects on marine systems; the most powerful of which are changes to salinity through altered patterns of precipitation and evaporation, temperature through increased global temperature, and pH through the dissolution of CO2 into seawater where it ultimately reacts with water to form carbonate (CO32-) and hydrogen ions (2H+). All these changes may impact marine organisms, in particular above the thermocline and in coastal waters. The studies included in this thesis were all performed in or close to the transition zone between the North Sea and the Baltic Sea. This area is a shallow coastal water mass influenced by the fully oceanic North Sea and the brackish Baltic Sea. Brown seaweeds are important habitat-forming seaweeds in this area, and bladderwrack (Fucus vesiculosus) is one of the most widespread and abundant. The general objective of this thesis is to evaluate the effects of climate change on habitat forming seaweeds in a coastal area and to experimentally address the complexity caused by the multiple factors changing simultaneously as a consequence of climate change. For example, including both separate and interactive effects of changes in seawater temperature, pH, salinity, and grazing pressure on both adult and early life stages of primarily Fucus vesiculosus in the experiments. By conducting field and lab experiments and combining physiological, chemical, and genetic approaches, I detect different aspects of responses to climate induced stress. My findings show that F. vesiculosus responds to climate change variables differently in different populations, and it responds to combinations of variables in ways that are not easily predicted based on experiments with single variables. I found that this seaweed will likely increase in growth by area but not weight under future climate change, and that its ability to induce chemical defence to grazing ... Doctoral or Postdoctoral Thesis Ocean acidification University of Gothenburg: GUPEA (Gothenburg University Publications Electronic Archive) |
institution |
Open Polar |
collection |
University of Gothenburg: GUPEA (Gothenburg University Publications Electronic Archive) |
op_collection_id |
ftunivgoeteborg |
language |
English |
topic |
Ocean acidification Warming Freshening Temperature Salinity pH pCO2 Fucus vesiculosus Phlorotannins Grazing Tissue resilience Macroalgae |
spellingShingle |
Ocean acidification Warming Freshening Temperature Salinity pH pCO2 Fucus vesiculosus Phlorotannins Grazing Tissue resilience Macroalgae Kinnby, Alexandra Habitat-Forming Seaweeds in a Changing Climate |
topic_facet |
Ocean acidification Warming Freshening Temperature Salinity pH pCO2 Fucus vesiculosus Phlorotannins Grazing Tissue resilience Macroalgae |
description |
Climate change is an umbrella term encompassing some of the largest and most potent selective pressures currently acting on ecosystems. It can have diverse effects on marine systems; the most powerful of which are changes to salinity through altered patterns of precipitation and evaporation, temperature through increased global temperature, and pH through the dissolution of CO2 into seawater where it ultimately reacts with water to form carbonate (CO32-) and hydrogen ions (2H+). All these changes may impact marine organisms, in particular above the thermocline and in coastal waters. The studies included in this thesis were all performed in or close to the transition zone between the North Sea and the Baltic Sea. This area is a shallow coastal water mass influenced by the fully oceanic North Sea and the brackish Baltic Sea. Brown seaweeds are important habitat-forming seaweeds in this area, and bladderwrack (Fucus vesiculosus) is one of the most widespread and abundant. The general objective of this thesis is to evaluate the effects of climate change on habitat forming seaweeds in a coastal area and to experimentally address the complexity caused by the multiple factors changing simultaneously as a consequence of climate change. For example, including both separate and interactive effects of changes in seawater temperature, pH, salinity, and grazing pressure on both adult and early life stages of primarily Fucus vesiculosus in the experiments. By conducting field and lab experiments and combining physiological, chemical, and genetic approaches, I detect different aspects of responses to climate induced stress. My findings show that F. vesiculosus responds to climate change variables differently in different populations, and it responds to combinations of variables in ways that are not easily predicted based on experiments with single variables. I found that this seaweed will likely increase in growth by area but not weight under future climate change, and that its ability to induce chemical defence to grazing ... |
format |
Doctoral or Postdoctoral Thesis |
author |
Kinnby, Alexandra |
author_facet |
Kinnby, Alexandra |
author_sort |
Kinnby, Alexandra |
title |
Habitat-Forming Seaweeds in a Changing Climate |
title_short |
Habitat-Forming Seaweeds in a Changing Climate |
title_full |
Habitat-Forming Seaweeds in a Changing Climate |
title_fullStr |
Habitat-Forming Seaweeds in a Changing Climate |
title_full_unstemmed |
Habitat-Forming Seaweeds in a Changing Climate |
title_sort |
habitat-forming seaweeds in a changing climate |
publishDate |
2021 |
url |
http://hdl.handle.net/2077/68048 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
PAPER I: Kinnby, A., Jonsson, P. R., Ortega-Martinez, O., Töpel, M., Pavia, H., Pereyra, R. T., & Johannesson, K. (2020). Combining an Ecological Experiment and a Genome Scan Show Idiosyncratic Responses to Salinity Stress in Local Populations of a Seaweed. Frontiers in Marine Science, 7, 470. ::doi::10.3389/fmars.2020.00470 PAPER II: Kinnby, A., White, J.C.B., Toth, G.B., & Pavia, H. (2021). Ocean acidification decreases grazing pressure but alters morphological structure in a dominant coastal seaweed. PloS one, 16(1), e0245017. ::doi::10.1371/journal.pone.0245017 PAPER III: Kinnby, A., Cervin, G., Larsson, A.I., Edlund, U., Toth, G.B., & Pavia, H. Increased risk of tissue breakage in habitat-forming seaweeds under ocean acidification. (Manuscript). PAPER IV: Kinnby A. Toth G.B. & Pavia H. Climate change increases susceptibility to grazers in a foundation seaweed. (In review). PAPER V: Kinnby, A., Johannesson, K., Cervin, G., & Pavia, H. Effects of ocean acidification and warming on fertilization success and germination in Fucus vesiculosus. (Manuscript). 978-91-8009-360-6 http://hdl.handle.net/2077/68048 |
_version_ |
1781066070746988544 |