STABLE ISOTOPE PROFILING IN MODERN MARINE BRYOZOAN COLONIES ACROSS THE ISTHMUS OF PANAMA.
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| Title: | STABLE ISOTOPE PROFILING IN MODERN MARINE BRYOZOAN COLONIES ACROSS THE ISTHMUS OF PANAMA. |
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| Authors: | Key Jr., Marcus M.1 key@dickinson.edu, Hollenbeck, Paige M.1, O'Dea, Aaron2, Patterson, William P.3 |
| Source: | Bulletin of Marine Science. Oct2013, Vol. 89 Issue 4, p837-856. 20p. |
| Subjects: | Stable isotopes, Isotopes, Bryozoa, Invertebrates, Ecology |
| Geographic Terms: | Isthmus of Panama (Panama) |
| Abstract: | In the tropics, upwelling of cold, deep water is the principal source of major seasonal fluctuations in temperature. Along the tropical eastern Pacific (TEP) coast of the Isthmus of Panama, seasonal upwelling induces corresponding drops in temperature. Upwelling does not occur along the southwestern Caribbean (SWC) coast of the isthmus. Our goal was to use these oceanographic differences to test the use of stable isotope profiles of free-living modern cupuladriid bryozoans as a method for quantifying paleo-seasonality. We determined O and C stable isotope values from micromilled carbonates profiled along the growth axis in three colonies of Cupuladria exfragminis Herrera-Cubilla, Dick, Sanner and Jackson, 2006 from the upwelling Gulf of Panama in TEP and three colonies of Cupuladria surinamensis Cadée, 1975 from the non-upwelling Bocas del Toro Archipelago in SWC. Pacific colonies had inter-colony δ18Ocarb. values ranging from -2.1‰ to -0.2‰ on the international Vienna Pee Dee Belemnite scale, whereas SWC colonies ranged from -1.7‰ to -0.6‰. Pacific colonies consistently reveal cyclical trends in δ18Ocarb. that are absent in the Caribbean colonies. Based on published measurements of temperature, salinity, and δ18Osw., the ≤2.5 yrs of cyclicity seen in the Pacific colonies reflects a combination of seasonal freshening and seasonal upwelling of colder water. This preliminary study suggests the potential for more exploration of bryozoans as a source of paleoclimate proxies. [ABSTRACT FROM AUTHOR] |
| Copyright of Bulletin of Marine Science is the property of Rosenstiel School of Marine & Atmospheric Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 113259485 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: STABLE ISOTOPE PROFILING IN MODERN MARINE BRYOZOAN COLONIES ACROSS THE ISTHMUS OF PANAMA. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Key+Jr%2E%2C+Marcus+M%2E%22">Key Jr., Marcus M.</searchLink><relatesTo>1</relatesTo><i> key@dickinson.edu</i><br /><searchLink fieldCode="AR" term="%22Hollenbeck%2C+Paige+M%2E%22">Hollenbeck, Paige M.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22O'Dea%2C+Aaron%22">O'Dea, Aaron</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Patterson%2C+William+P%2E%22">Patterson, William P.</searchLink><relatesTo>3</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Bulletin+of+Marine+Science%22">Bulletin of Marine Science</searchLink>. Oct2013, Vol. 89 Issue 4, p837-856. 20p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Stable+isotopes%22">Stable isotopes</searchLink><br /><searchLink fieldCode="DE" term="%22Isotopes%22">Isotopes</searchLink><br /><searchLink fieldCode="DE" term="%22Bryozoa%22">Bryozoa</searchLink><br /><searchLink fieldCode="DE" term="%22Invertebrates%22">Invertebrates</searchLink><br /><searchLink fieldCode="DE" term="%22Ecology%22">Ecology</searchLink> – Name: SubjectGeographic Label: Geographic Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Isthmus+of+Panama+%28Panama%29%22">Isthmus of Panama (Panama)</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: In the tropics, upwelling of cold, deep water is the principal source of major seasonal fluctuations in temperature. Along the tropical eastern Pacific (TEP) coast of the Isthmus of Panama, seasonal upwelling induces corresponding drops in temperature. Upwelling does not occur along the southwestern Caribbean (SWC) coast of the isthmus. Our goal was to use these oceanographic differences to test the use of stable isotope profiles of free-living modern cupuladriid bryozoans as a method for quantifying paleo-seasonality. We determined O and C stable isotope values from micromilled carbonates profiled along the growth axis in three colonies of Cupuladria exfragminis Herrera-Cubilla, Dick, Sanner and Jackson, 2006 from the upwelling Gulf of Panama in TEP and three colonies of Cupuladria surinamensis Cadée, 1975 from the non-upwelling Bocas del Toro Archipelago in SWC. Pacific colonies had inter-colony δ18Ocarb. values ranging from -2.1‰ to -0.2‰ on the international Vienna Pee Dee Belemnite scale, whereas SWC colonies ranged from -1.7‰ to -0.6‰. Pacific colonies consistently reveal cyclical trends in δ18Ocarb. that are absent in the Caribbean colonies. Based on published measurements of temperature, salinity, and δ18Osw., the ≤2.5 yrs of cyclicity seen in the Pacific colonies reflects a combination of seasonal freshening and seasonal upwelling of colder water. This preliminary study suggests the potential for more exploration of bryozoans as a source of paleoclimate proxies. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Bulletin of Marine Science is the property of Rosenstiel School of Marine & Atmospheric Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.5343/bms.2012.1056 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 20 StartPage: 837 Subjects: – SubjectFull: Stable isotopes Type: general – SubjectFull: Isotopes Type: general – SubjectFull: Bryozoa Type: general – SubjectFull: Invertebrates Type: general – SubjectFull: Ecology Type: general – SubjectFull: Isthmus of Panama (Panama) Type: general Titles: – TitleFull: STABLE ISOTOPE PROFILING IN MODERN MARINE BRYOZOAN COLONIES ACROSS THE ISTHMUS OF PANAMA. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Key Jr., Marcus M. – PersonEntity: Name: NameFull: Hollenbeck, Paige M. – PersonEntity: Name: NameFull: O'Dea, Aaron – PersonEntity: Name: NameFull: Patterson, William P. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 10 Text: Oct2013 Type: published Y: 2013 Identifiers: – Type: issn-print Value: 00074977 Numbering: – Type: volume Value: 89 – Type: issue Value: 4 Titles: – TitleFull: Bulletin of Marine Science Type: main |
| ResultId | 1 |
