Effects of Ocean Acidification on Species Composition and Biodiversity in the Region of Kongsfjord (Svalbard)
Ocean acidification is a great threat to marine ecosystems and the oceans around the poles are first in line to be affected by the increase in CO2 concentration, effectively damaging the living conditions of marine life present here. This paper analysis and discusses whether studies on the effects o...
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Högskolan i Halmstad, Akademin för ekonomi, teknik och naturvetenskap
2020
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fthalmstadunivdi:oai:DiVA.org:hh-42347 2023-05-15T15:11:11+02:00 Effects of Ocean Acidification on Species Composition and Biodiversity in the Region of Kongsfjord (Svalbard) Grandon, Nathalia 2020 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-42347 eng eng Högskolan i Halmstad, Akademin för ekonomi, teknik och naturvetenskap http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-42347 info:eu-repo/semantics/openAccess Natural Sciences Naturvetenskap Student thesis info:eu-repo/semantics/bachelorThesis text 2020 fthalmstadunivdi 2022-07-22T05:33:52Z Ocean acidification is a great threat to marine ecosystems and the oceans around the poles are first in line to be affected by the increase in CO2 concentration, effectively damaging the living conditions of marine life present here. This paper analysis and discusses whether studies on the effects of ocean acidification on single species can be used to predict future changes in food web dynamics. The results indicate that by looking at effects on different physiological functions on single species, predictions on how the species in question will cope with a more acidic environment can be made. These predictions can in turn hint on possible changes in the food web. The increase in DOC as well as the shift to smaller and more toxic species of phytoplankton will prove advantageous to bacterioplankton who will play a bigger role in future carbon cycling. The toxic HAB’s could present a hazardous future for primary consumers, but especially secondary consumers. If not affected by the toxicity of the more frequent algal blooms, primary consumers will face negative consequences to the larval recruitment of copepods and shell formation of pteropods by ocean acidification. This would mean a decrease in abundance causing eutrophication and smaller amounts of food sources for fish higher up the trophic cascades, such as the endemic polar cod and the Atlantic cod. Regardless of the general scarcity of data available from these areas, all studies point to a shift in species composition. A clear indication of a future of lower diversity and ultimately an Arctic Ocean with lower ecological resilience. Bachelor Thesis Arctic Arctic Ocean atlantic cod Kongsfjord* Ocean acidification Phytoplankton polar cod Svalbard Copepods Halmstad University: Publications (DiVA) Arctic Arctic Ocean Svalbard Kongsfjord ENVELOPE(29.319,29.319,70.721,70.721) |
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Open Polar |
collection |
Halmstad University: Publications (DiVA) |
op_collection_id |
fthalmstadunivdi |
language |
English |
topic |
Natural Sciences Naturvetenskap |
spellingShingle |
Natural Sciences Naturvetenskap Grandon, Nathalia Effects of Ocean Acidification on Species Composition and Biodiversity in the Region of Kongsfjord (Svalbard) |
topic_facet |
Natural Sciences Naturvetenskap |
description |
Ocean acidification is a great threat to marine ecosystems and the oceans around the poles are first in line to be affected by the increase in CO2 concentration, effectively damaging the living conditions of marine life present here. This paper analysis and discusses whether studies on the effects of ocean acidification on single species can be used to predict future changes in food web dynamics. The results indicate that by looking at effects on different physiological functions on single species, predictions on how the species in question will cope with a more acidic environment can be made. These predictions can in turn hint on possible changes in the food web. The increase in DOC as well as the shift to smaller and more toxic species of phytoplankton will prove advantageous to bacterioplankton who will play a bigger role in future carbon cycling. The toxic HAB’s could present a hazardous future for primary consumers, but especially secondary consumers. If not affected by the toxicity of the more frequent algal blooms, primary consumers will face negative consequences to the larval recruitment of copepods and shell formation of pteropods by ocean acidification. This would mean a decrease in abundance causing eutrophication and smaller amounts of food sources for fish higher up the trophic cascades, such as the endemic polar cod and the Atlantic cod. Regardless of the general scarcity of data available from these areas, all studies point to a shift in species composition. A clear indication of a future of lower diversity and ultimately an Arctic Ocean with lower ecological resilience. |
format |
Bachelor Thesis |
author |
Grandon, Nathalia |
author_facet |
Grandon, Nathalia |
author_sort |
Grandon, Nathalia |
title |
Effects of Ocean Acidification on Species Composition and Biodiversity in the Region of Kongsfjord (Svalbard) |
title_short |
Effects of Ocean Acidification on Species Composition and Biodiversity in the Region of Kongsfjord (Svalbard) |
title_full |
Effects of Ocean Acidification on Species Composition and Biodiversity in the Region of Kongsfjord (Svalbard) |
title_fullStr |
Effects of Ocean Acidification on Species Composition and Biodiversity in the Region of Kongsfjord (Svalbard) |
title_full_unstemmed |
Effects of Ocean Acidification on Species Composition and Biodiversity in the Region of Kongsfjord (Svalbard) |
title_sort |
effects of ocean acidification on species composition and biodiversity in the region of kongsfjord (svalbard) |
publisher |
Högskolan i Halmstad, Akademin för ekonomi, teknik och naturvetenskap |
publishDate |
2020 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-42347 |
long_lat |
ENVELOPE(29.319,29.319,70.721,70.721) |
geographic |
Arctic Arctic Ocean Svalbard Kongsfjord |
geographic_facet |
Arctic Arctic Ocean Svalbard Kongsfjord |
genre |
Arctic Arctic Ocean atlantic cod Kongsfjord* Ocean acidification Phytoplankton polar cod Svalbard Copepods |
genre_facet |
Arctic Arctic Ocean atlantic cod Kongsfjord* Ocean acidification Phytoplankton polar cod Svalbard Copepods |
op_relation |
http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-42347 |
op_rights |
info:eu-repo/semantics/openAccess |
_version_ |
1766342087713751040 |