Effects of ocean acidification on the nutritional quality of Antarctic phytoplankton as food for Euphausia suberda larvae ...
As a consequence of human activity carbon dioxide (CO2) concentration has risen from ~280 parts per million (ppm) pre-industrial to ~397ppm today. About 30% of anthropogenic CO2 emissions have been taken up by the oceans, raising the seawater partial pressure of CO2 (pCO2) while lowering seawater pH...
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| Format: | Thesis |
| Language: | unknown |
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University Of Tasmania
2023
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| Online Access: | https://dx.doi.org/10.25959/23230535.v1 https://figshare.utas.edu.au/articles/thesis/Effects_of_ocean_acidification_on_the_nutritional_quality_of_Antarctic_phytoplankton_as_food_for_Euphausia_suberda_larvae/23230535/1 |
| Summary: | As a consequence of human activity carbon dioxide (CO2) concentration has risen from ~280 parts per million (ppm) pre-industrial to ~397ppm today. About 30% of anthropogenic CO2 emissions have been taken up by the oceans, raising the seawater partial pressure of CO2 (pCO2) while lowering seawater pH. This change in carbonate chemistry has the potential to alter phytoplankton biochemistry, physiology and species composition, thereby affecting the quality and quantity of the basis of the food web. Little is known about how this may flow on to affect dependent grazers, particularly in polar regions. In the Southern Ocean, Antarctic krill, Euphausia superba, is the key species that supports many predators. Negative impacts on the abundance and quality of this species could have far reaching consequences for the Antarctic food web. To address this knowledge gap, the aim for this research project was to assess the potential of ocean acidification to affect Antarctic krill through impacts on Antarctic phytoplankton ... |
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