Anemones on acid: possible benefits of ocean acidification to sea anemone-algal symbiosis

Ocean acidification continues to be a threat to most species of marine life and is projected to become more severe over the next 50 years. Areas that experience upwelling of low pH water, like the Salish Sea and Puget Sound, are particularly susceptible to even greater OA conditions. While much of O...

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Main Author: Coleman, Natalie
Format: Text
Language:English
Published: Western CEDAR 2018
Subjects:
Online Access:https://cedar.wwu.edu/grad_conf/poster_presentations/poster_presentations/38
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spelling ftwestwashington:oai:cedar.wwu.edu:grad_conf-1069 2024-09-15T18:28:02+00:00 Anemones on acid: possible benefits of ocean acidification to sea anemone-algal symbiosis Coleman, Natalie 2018-05-10T19:00:00Z https://cedar.wwu.edu/grad_conf/poster_presentations/poster_presentations/38 English eng Western CEDAR https://cedar.wwu.edu/grad_conf/poster_presentations/poster_presentations/38 Graduate Student Symposium Cell Biology Environmental Microbiology and Microbial Ecology Integrative Biology Marine Biology Molecular Biology Organismal Biological Physiology Other Ecology and Evolutionary Biology Systems Biology text 2018 ftwestwashington 2024-06-25T03:30:31Z Ocean acidification continues to be a threat to most species of marine life and is projected to become more severe over the next 50 years. Areas that experience upwelling of low pH water, like the Salish Sea and Puget Sound, are particularly susceptible to even greater OA conditions. While much of OA literature has focused on the negative impacts to calcifiers, economically important shellfish, and zooplankton, not all species may be threatened by OA. Photosynthesizing organisms have shown some benefits from the increased CO2 in their environment. This study focuses on one of the most abundant intertidal organisms in the Pacific Northwest, the aggregating anemone (Anthopleura elgantissima) and the two photosynthetic symbionts they house- Symbiodinium muscatinei and Elliptochloris marina. Anemones hosting each symbiont individual and those hosting both or none at all were subjected to 3 different levels of OA over the course of 10 weeks. Photosynthetic efficiency, reactive oxygen species (ROS), and CZAR score (the percent of organic carbon received from the symbiont) were measured during the experiment for all 4 symbiont states. Reactive oxygen species increased with OA level and was greatest in S. muscatinei anemones. Photosynthetic efficiency increased in intermediate levels of OA for both symbiont types but declined at the highest levels. CZAR score increased with OA level but was significantly higher in S. muscantinei anemones. Lastly, anemones that started with 50% of each symbiont type shifted toward a higher percentage of S. muscatinei with increased OA. This study suggests anemones hosting S. muscatinei may have a competitive advantage under future conditions and even benefit from increased OA until a certain threshold is reached. Text Ocean acidification Western Washington University: CEDAR (Contributing to Education through Digital Access to Research)
institution Open Polar
collection Western Washington University: CEDAR (Contributing to Education through Digital Access to Research)
op_collection_id ftwestwashington
language English
topic Cell Biology
Environmental Microbiology and Microbial Ecology
Integrative Biology
Marine Biology
Molecular Biology
Organismal Biological Physiology
Other Ecology and Evolutionary Biology
Systems Biology
spellingShingle Cell Biology
Environmental Microbiology and Microbial Ecology
Integrative Biology
Marine Biology
Molecular Biology
Organismal Biological Physiology
Other Ecology and Evolutionary Biology
Systems Biology
Coleman, Natalie
Anemones on acid: possible benefits of ocean acidification to sea anemone-algal symbiosis
topic_facet Cell Biology
Environmental Microbiology and Microbial Ecology
Integrative Biology
Marine Biology
Molecular Biology
Organismal Biological Physiology
Other Ecology and Evolutionary Biology
Systems Biology
description Ocean acidification continues to be a threat to most species of marine life and is projected to become more severe over the next 50 years. Areas that experience upwelling of low pH water, like the Salish Sea and Puget Sound, are particularly susceptible to even greater OA conditions. While much of OA literature has focused on the negative impacts to calcifiers, economically important shellfish, and zooplankton, not all species may be threatened by OA. Photosynthesizing organisms have shown some benefits from the increased CO2 in their environment. This study focuses on one of the most abundant intertidal organisms in the Pacific Northwest, the aggregating anemone (Anthopleura elgantissima) and the two photosynthetic symbionts they house- Symbiodinium muscatinei and Elliptochloris marina. Anemones hosting each symbiont individual and those hosting both or none at all were subjected to 3 different levels of OA over the course of 10 weeks. Photosynthetic efficiency, reactive oxygen species (ROS), and CZAR score (the percent of organic carbon received from the symbiont) were measured during the experiment for all 4 symbiont states. Reactive oxygen species increased with OA level and was greatest in S. muscatinei anemones. Photosynthetic efficiency increased in intermediate levels of OA for both symbiont types but declined at the highest levels. CZAR score increased with OA level but was significantly higher in S. muscantinei anemones. Lastly, anemones that started with 50% of each symbiont type shifted toward a higher percentage of S. muscatinei with increased OA. This study suggests anemones hosting S. muscatinei may have a competitive advantage under future conditions and even benefit from increased OA until a certain threshold is reached.
format Text
author Coleman, Natalie
author_facet Coleman, Natalie
author_sort Coleman, Natalie
title Anemones on acid: possible benefits of ocean acidification to sea anemone-algal symbiosis
title_short Anemones on acid: possible benefits of ocean acidification to sea anemone-algal symbiosis
title_full Anemones on acid: possible benefits of ocean acidification to sea anemone-algal symbiosis
title_fullStr Anemones on acid: possible benefits of ocean acidification to sea anemone-algal symbiosis
title_full_unstemmed Anemones on acid: possible benefits of ocean acidification to sea anemone-algal symbiosis
title_sort anemones on acid: possible benefits of ocean acidification to sea anemone-algal symbiosis
publisher Western CEDAR
publishDate 2018
url https://cedar.wwu.edu/grad_conf/poster_presentations/poster_presentations/38
genre Ocean acidification
genre_facet Ocean acidification
op_source Graduate Student Symposium
op_relation https://cedar.wwu.edu/grad_conf/poster_presentations/poster_presentations/38
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