Spatio-temporal variation of skeletal Mg-calcite in Antarctic marine calcifiers
18 pages, 7 figures, 5 tables
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2019-05
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dig-icm-es-10261-1925192021-12-28T16:07:59Z Spatio-temporal variation of skeletal Mg-calcite in Antarctic marine calcifiers Figuerola, Blanca Gore, Damian B. Johnstone, Glenn Stark, Jonathan S. 18 pages, 7 figures, 5 tables Human driven changes such as increases in oceanic CO2, global warming, petroleum hydrocarbons and heavy metals may negatively affect the ability of marine calcifiers to build their skeletons/shells, especially in polar regions. We examine spatio-temporal variability of skeletal Mg-calcite in shallow water Antarctic marine invertebrates using bryozoan and spirorbids as models in a recruitment experiment of settlement tiles in East Antarctica. Mineralogies were determined for 754 specimens belonging to six bryozoan species (four cheilostome and two cyclostome species) and two spirorbid species from around Casey Station. Intra- and interspecific variability in wt% MgCO3 in calcite among most species was the largest source of variation overall. Therefore, the skeletal Mg-calcite in these taxa seem to be mainly biologically controlled. However, significant spatial variability was also found in wt% MgCO3 in calcite, possibly reflecting local environment variation from sources such as freshwater input and contaminated sediments. Species with high-Mg calcite skeletons (e.g. Beania erecta) could be particularly sensitive to multiple stressors under predictions for near-future global ocean chemistry changes such as increasing temperature, ocean acidification and pollution The research visit of B. Figuerola to the Australian Antarctic Division and Macquarie University was supported by a Council of Managers of National Antarctic Programs (COMNAP) Research Fellowship. This project was supported financially by the Australian Antarctic Division grant AAS 4127 Peer reviewed 2019-10-11T12:56:30Z 2019-10-11T12:56:30Z 2019-05 artículo http://purl.org/coar/resource_type/c_6501 e-issn: 1932-6203 PLoS ONE 14(5): e0210231 (2019) http://hdl.handle.net/10261/192519 10.1371/journal.pone.0210231 31063495 en https://doi.org/10.1371/journal.pone.0210231 No open Public Library of Science |
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| language |
English |
| description |
18 pages, 7 figures, 5 tables |
| format |
artículo |
| author |
Figuerola, Blanca Gore, Damian B. Johnstone, Glenn Stark, Jonathan S. |
| spellingShingle |
Figuerola, Blanca Gore, Damian B. Johnstone, Glenn Stark, Jonathan S. Spatio-temporal variation of skeletal Mg-calcite in Antarctic marine calcifiers |
| author_facet |
Figuerola, Blanca Gore, Damian B. Johnstone, Glenn Stark, Jonathan S. |
| author_sort |
Figuerola, Blanca |
| title |
Spatio-temporal variation of skeletal Mg-calcite in Antarctic marine calcifiers |
| title_short |
Spatio-temporal variation of skeletal Mg-calcite in Antarctic marine calcifiers |
| title_full |
Spatio-temporal variation of skeletal Mg-calcite in Antarctic marine calcifiers |
| title_fullStr |
Spatio-temporal variation of skeletal Mg-calcite in Antarctic marine calcifiers |
| title_full_unstemmed |
Spatio-temporal variation of skeletal Mg-calcite in Antarctic marine calcifiers |
| title_sort |
spatio-temporal variation of skeletal mg-calcite in antarctic marine calcifiers |
| publisher |
Public Library of Science |
| publishDate |
2019-05 |
| url |
http://hdl.handle.net/10261/192519 |
| work_keys_str_mv |
AT figuerolablanca spatiotemporalvariationofskeletalmgcalciteinantarcticmarinecalcifiers AT goredamianb spatiotemporalvariationofskeletalmgcalciteinantarcticmarinecalcifiers AT johnstoneglenn spatiotemporalvariationofskeletalmgcalciteinantarcticmarinecalcifiers AT starkjonathans spatiotemporalvariationofskeletalmgcalciteinantarcticmarinecalcifiers |
| _version_ |
1777667008766148608 |