Modal analysis of the deep-water solitary scleractinian, Desmophyllum dianthus, on SW Pacific seamounts: inferred recruitment periodicity, growth, and mortality rates
Little is known about the demography of corals inhabiting deep-sea features due to the logistical difficulties of working at the extreme depths they inhabit. To obtain basic information about growth, mortality, and recruitment dynamics for such a coral, we applied modal analysis to the size frequenc...
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ftcaltechauth:oai:authors.library.caltech.edu:27800 2023-05-15T18:25:32+02:00 Modal analysis of the deep-water solitary scleractinian, Desmophyllum dianthus, on SW Pacific seamounts: inferred recruitment periodicity, growth, and mortality rates Thresher, R. E. Adkins, J. Thiagarajan, N. 2011-12 https://authors.library.caltech.edu/27800/ https://resolver.caltech.edu/CaltechAUTHORS:20111116-094548860 unknown Springer Thresher, R. E. and Adkins, J. and Thiagarajan, N. (2011) Modal analysis of the deep-water solitary scleractinian, Desmophyllum dianthus, on SW Pacific seamounts: inferred recruitment periodicity, growth, and mortality rates. Coral Reefs, 30 (4). pp. 1063-1070. ISSN 0722-4028. doi:10.1007/s00338-011-0806-7. https://resolver.caltech.edu/CaltechAUTHORS:20111116-094548860 <https://resolver.caltech.edu/CaltechAUTHORS:20111116-094548860> Article PeerReviewed 2011 ftcaltechauth https://doi.org/10.1007/s00338-011-0806-7 2021-11-11T18:48:15Z Little is known about the demography of corals inhabiting deep-sea features due to the logistical difficulties of working at the extreme depths they inhabit. To obtain basic information about growth, mortality, and recruitment dynamics for such a coral, we applied modal analysis to the size frequency distributions of live-caught and sub-fossil specimens of the widely distributed solitary cup coral, Desmophyllum dianthus, collected on SW Pacific seamounts. Comparison of live-caught material collected in 1997 and 2007–2009 indicated modal progression over time and an implied maximum age of approximately 190 years, which is similar to ages determined previously for D. dianthus using radiometric techniques. A log-linear decline in the number of individuals with increasing size further implies a constant adult mortality rate, of 15.1% per annum in 1997 and 9.2% per annum in 2007–2009. The spacing of size modes in the 2007–2009 samples suggests regularly episodic recruitment events, at 22- to 32-year intervals, which may relate to periodic variability in large-scale Southern Ocean circulation. Preliminary analyses of size frequency distributions of the sub-fossil material suggest that the trophodynamics, growth, and adult mortality schedules of D. dianthus in the SW Pacific have remained basically similar throughout the Holocene. Article in Journal/Newspaper Southern Ocean Caltech Authors (California Institute of Technology) Pacific Southern Ocean Coral Reefs 30 4 1063 1070 |
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Caltech Authors (California Institute of Technology) |
op_collection_id |
ftcaltechauth |
language |
unknown |
description |
Little is known about the demography of corals inhabiting deep-sea features due to the logistical difficulties of working at the extreme depths they inhabit. To obtain basic information about growth, mortality, and recruitment dynamics for such a coral, we applied modal analysis to the size frequency distributions of live-caught and sub-fossil specimens of the widely distributed solitary cup coral, Desmophyllum dianthus, collected on SW Pacific seamounts. Comparison of live-caught material collected in 1997 and 2007–2009 indicated modal progression over time and an implied maximum age of approximately 190 years, which is similar to ages determined previously for D. dianthus using radiometric techniques. A log-linear decline in the number of individuals with increasing size further implies a constant adult mortality rate, of 15.1% per annum in 1997 and 9.2% per annum in 2007–2009. The spacing of size modes in the 2007–2009 samples suggests regularly episodic recruitment events, at 22- to 32-year intervals, which may relate to periodic variability in large-scale Southern Ocean circulation. Preliminary analyses of size frequency distributions of the sub-fossil material suggest that the trophodynamics, growth, and adult mortality schedules of D. dianthus in the SW Pacific have remained basically similar throughout the Holocene. |
format |
Article in Journal/Newspaper |
author |
Thresher, R. E. Adkins, J. Thiagarajan, N. |
spellingShingle |
Thresher, R. E. Adkins, J. Thiagarajan, N. Modal analysis of the deep-water solitary scleractinian, Desmophyllum dianthus, on SW Pacific seamounts: inferred recruitment periodicity, growth, and mortality rates |
author_facet |
Thresher, R. E. Adkins, J. Thiagarajan, N. |
author_sort |
Thresher, R. E. |
title |
Modal analysis of the deep-water solitary scleractinian, Desmophyllum dianthus, on SW Pacific seamounts: inferred recruitment periodicity, growth, and mortality rates |
title_short |
Modal analysis of the deep-water solitary scleractinian, Desmophyllum dianthus, on SW Pacific seamounts: inferred recruitment periodicity, growth, and mortality rates |
title_full |
Modal analysis of the deep-water solitary scleractinian, Desmophyllum dianthus, on SW Pacific seamounts: inferred recruitment periodicity, growth, and mortality rates |
title_fullStr |
Modal analysis of the deep-water solitary scleractinian, Desmophyllum dianthus, on SW Pacific seamounts: inferred recruitment periodicity, growth, and mortality rates |
title_full_unstemmed |
Modal analysis of the deep-water solitary scleractinian, Desmophyllum dianthus, on SW Pacific seamounts: inferred recruitment periodicity, growth, and mortality rates |
title_sort |
modal analysis of the deep-water solitary scleractinian, desmophyllum dianthus, on sw pacific seamounts: inferred recruitment periodicity, growth, and mortality rates |
publisher |
Springer |
publishDate |
2011 |
url |
https://authors.library.caltech.edu/27800/ https://resolver.caltech.edu/CaltechAUTHORS:20111116-094548860 |
geographic |
Pacific Southern Ocean |
geographic_facet |
Pacific Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_relation |
Thresher, R. E. and Adkins, J. and Thiagarajan, N. (2011) Modal analysis of the deep-water solitary scleractinian, Desmophyllum dianthus, on SW Pacific seamounts: inferred recruitment periodicity, growth, and mortality rates. Coral Reefs, 30 (4). pp. 1063-1070. ISSN 0722-4028. doi:10.1007/s00338-011-0806-7. https://resolver.caltech.edu/CaltechAUTHORS:20111116-094548860 <https://resolver.caltech.edu/CaltechAUTHORS:20111116-094548860> |
op_doi |
https://doi.org/10.1007/s00338-011-0806-7 |
container_title |
Coral Reefs |
container_volume |
30 |
container_issue |
4 |
container_start_page |
1063 |
op_container_end_page |
1070 |
_version_ |
1766207061226422272 |