Population Dynamics and Parasite Load of a Foraminifer on Its Antarctic Scallop Host with Their Carbonate Biomass Contributions
We studied the population dynamics and parasite load of the foraminifer Cibicides antarcticus on its host the Antarctic scallop Adamussium colbecki from three localities differing by sea ice cover within western McMurdo Sound, Ross Sea, Antarctica: Explorers Cove, Bay of Sails and Herbertson Glacier...
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ftpubmed:oai:pubmedcentral.nih.gov:4505869 2023-05-15T14:00:13+02:00 Population Dynamics and Parasite Load of a Foraminifer on Its Antarctic Scallop Host with Their Carbonate Biomass Contributions Hancock, Leanne G. Walker, Sally E. Pérez-Huerta, Alberto Bowser, Samuel S. 2015-07-17 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4505869/ http://www.ncbi.nlm.nih.gov/pubmed/26186724 https://doi.org/10.1371/journal.pone.0132534 en eng Public Library of Science http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4505869/ http://www.ncbi.nlm.nih.gov/pubmed/26186724 http://dx.doi.org/10.1371/journal.pone.0132534 http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited CC-BY Research Article Text 2015 ftpubmed https://doi.org/10.1371/journal.pone.0132534 2015-07-26T00:03:02Z We studied the population dynamics and parasite load of the foraminifer Cibicides antarcticus on its host the Antarctic scallop Adamussium colbecki from three localities differing by sea ice cover within western McMurdo Sound, Ross Sea, Antarctica: Explorers Cove, Bay of Sails and Herbertson Glacier. We also estimated CaCO3 biomass and annual production for both species. Cibicides populations varied by locality, valve type, and depth. Explorers Cove with multiannual sea ice had larger populations than the two annual sea ice localities, likely related to differences in nutrients. Populations were higher on Adamussium top valves, a surface that is elevated above the sediment. Depth did not affect Cibicides distributions except at Bay of Sails. Cibicides parasite load (the number of complete boreholes in Adamussium valves) varied by locality between 2% and 50%. For most localities the parasite load was < 20%, contrary to a previous report that ~50% of Cibicides were parasitic. The highest and lowest parasite load occurred at annual sea ice localities, suggesting that sea ice condition is not important. Rather, the number of adults that are parasitic could account for these differences. Cibicides bioerosion traces were categorized into four ontogenetic stages, ranging from newly attached recruits to parasitic adults. These traces provide an excellent proxy for population structure, revealing that Explorers Cove had a younger population than Bay of Sails. Both species are important producers of CaCO3. Cibicides CaCO3 biomass averaged 47-73 kg ha-1 and Adamussium averaged 4987-6806 kg ha-1 by locality. Annual production rates were much higher. Moreover, Cibicides represents 1.0-2.3% of the total host-parasite CaCO3 biomass. Despite living in the coldest waters on Earth, these species can contribute a substantial amount of CaCO3 to the Ross Sea and need to be incorporated into food webs, ecosystem models, and carbonate budgets for Antarctica. Text Antarc* Antarctic Antarctica antarcticus McMurdo Sound Ross Sea Sea ice PubMed Central (PMC) Antarctic Bay of Sails ENVELOPE(163.567,163.567,-77.350,-77.350) Explorers Cove ENVELOPE(163.583,163.583,-77.567,-77.567) Herbertson Glacier ENVELOPE(163.800,163.800,-77.700,-77.700) McMurdo Sound Ross Sea The Antarctic PLOS ONE 10 7 e0132534 |
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English |
topic |
Research Article |
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Research Article Hancock, Leanne G. Walker, Sally E. Pérez-Huerta, Alberto Bowser, Samuel S. Population Dynamics and Parasite Load of a Foraminifer on Its Antarctic Scallop Host with Their Carbonate Biomass Contributions |
topic_facet |
Research Article |
description |
We studied the population dynamics and parasite load of the foraminifer Cibicides antarcticus on its host the Antarctic scallop Adamussium colbecki from three localities differing by sea ice cover within western McMurdo Sound, Ross Sea, Antarctica: Explorers Cove, Bay of Sails and Herbertson Glacier. We also estimated CaCO3 biomass and annual production for both species. Cibicides populations varied by locality, valve type, and depth. Explorers Cove with multiannual sea ice had larger populations than the two annual sea ice localities, likely related to differences in nutrients. Populations were higher on Adamussium top valves, a surface that is elevated above the sediment. Depth did not affect Cibicides distributions except at Bay of Sails. Cibicides parasite load (the number of complete boreholes in Adamussium valves) varied by locality between 2% and 50%. For most localities the parasite load was < 20%, contrary to a previous report that ~50% of Cibicides were parasitic. The highest and lowest parasite load occurred at annual sea ice localities, suggesting that sea ice condition is not important. Rather, the number of adults that are parasitic could account for these differences. Cibicides bioerosion traces were categorized into four ontogenetic stages, ranging from newly attached recruits to parasitic adults. These traces provide an excellent proxy for population structure, revealing that Explorers Cove had a younger population than Bay of Sails. Both species are important producers of CaCO3. Cibicides CaCO3 biomass averaged 47-73 kg ha-1 and Adamussium averaged 4987-6806 kg ha-1 by locality. Annual production rates were much higher. Moreover, Cibicides represents 1.0-2.3% of the total host-parasite CaCO3 biomass. Despite living in the coldest waters on Earth, these species can contribute a substantial amount of CaCO3 to the Ross Sea and need to be incorporated into food webs, ecosystem models, and carbonate budgets for Antarctica. |
format |
Text |
author |
Hancock, Leanne G. Walker, Sally E. Pérez-Huerta, Alberto Bowser, Samuel S. |
author_facet |
Hancock, Leanne G. Walker, Sally E. Pérez-Huerta, Alberto Bowser, Samuel S. |
author_sort |
Hancock, Leanne G. |
title |
Population Dynamics and Parasite Load of a Foraminifer on Its Antarctic Scallop Host with Their Carbonate Biomass Contributions |
title_short |
Population Dynamics and Parasite Load of a Foraminifer on Its Antarctic Scallop Host with Their Carbonate Biomass Contributions |
title_full |
Population Dynamics and Parasite Load of a Foraminifer on Its Antarctic Scallop Host with Their Carbonate Biomass Contributions |
title_fullStr |
Population Dynamics and Parasite Load of a Foraminifer on Its Antarctic Scallop Host with Their Carbonate Biomass Contributions |
title_full_unstemmed |
Population Dynamics and Parasite Load of a Foraminifer on Its Antarctic Scallop Host with Their Carbonate Biomass Contributions |
title_sort |
population dynamics and parasite load of a foraminifer on its antarctic scallop host with their carbonate biomass contributions |
publisher |
Public Library of Science |
publishDate |
2015 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4505869/ http://www.ncbi.nlm.nih.gov/pubmed/26186724 https://doi.org/10.1371/journal.pone.0132534 |
long_lat |
ENVELOPE(163.567,163.567,-77.350,-77.350) ENVELOPE(163.583,163.583,-77.567,-77.567) ENVELOPE(163.800,163.800,-77.700,-77.700) |
geographic |
Antarctic Bay of Sails Explorers Cove Herbertson Glacier McMurdo Sound Ross Sea The Antarctic |
geographic_facet |
Antarctic Bay of Sails Explorers Cove Herbertson Glacier McMurdo Sound Ross Sea The Antarctic |
genre |
Antarc* Antarctic Antarctica antarcticus McMurdo Sound Ross Sea Sea ice |
genre_facet |
Antarc* Antarctic Antarctica antarcticus McMurdo Sound Ross Sea Sea ice |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4505869/ http://www.ncbi.nlm.nih.gov/pubmed/26186724 http://dx.doi.org/10.1371/journal.pone.0132534 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1371/journal.pone.0132534 |
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PLOS ONE |
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