Isotope ratios, trace elements and ultrastructure results of Mytilus galloprovincialis shells and experimental site data off Ischia (Italy)
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| Auteurs principaux: | , , , , , , , , |
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| Format: | Dataset Open Access |
| Langue: | en |
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PANGAEA
2012
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| _version_ | 1867168562651594752 |
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| author | Hahn, Sabine Rodolfo-Metalpa, Riccardo Griesshaber, Erika Schmahl, Wolfgang W Buhl, Dieter Hall-Spencer, Jason M Baggini, Cecilia Fehr, Karl T Immenhauser, Adrian |
| author_facet | Hahn, Sabine Rodolfo-Metalpa, Riccardo Griesshaber, Erika Schmahl, Wolfgang W Buhl, Dieter Hall-Spencer, Jason M Baggini, Cecilia Fehr, Karl T Immenhauser, Adrian |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Bivalve shells can provide excellent archives of past environmental change but have not been used to interpret ocean acidification events. We investigated carbon, oxygen and trace element records from different shell layers in the mussels Mytilus galloprovincialis combined with detailed investigations of the shell ultrastructure. Mussels from the harbour of Ischia (Mediterranean, Italy) were transplanted and grown in water with mean pHT 7.3 and mean pHT 8.1 near CO2 vents on the east coast of the island. Most prominently, the shells recorded the shock of transplantation, both in their shell ultrastructure, textural and geochemical record. Shell calcite, precipitated subsequently under acidified seawater responded to the pH gradient by an in part disturbed ultrastructure. Geochemical data from all test sites show a strong metabolic effect that exceeds the influence of the low-pH environment. These field experiments showed that care is needed when interpreting potential ocean acidification signals because various parameters affect shell chemistry and ultrastructure. Besides metabolic processes, seawater pH, factors such as salinity, water temperature, food availability and population density all affect the biogenic carbonate shell archive. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_808133 |
| institution | PANGAEA |
| language | en |
| publishDate | 2012 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Isotope ratios, trace elements and ultrastructure results of Mytilus galloprovincialis shells and experimental site data off Ischia (Italy) Hahn, Sabine Rodolfo-Metalpa, Riccardo Griesshaber, Erika Schmahl, Wolfgang W Buhl, Dieter Hall-Spencer, Jason M Baggini, Cecilia Fehr, Karl T Immenhauser, Adrian BIOACID; Biological Impacts of Ocean Acidification; Mediterranean Sea Acidification in a Changing Climate; MedSeA Bivalve shells can provide excellent archives of past environmental change but have not been used to interpret ocean acidification events. We investigated carbon, oxygen and trace element records from different shell layers in the mussels Mytilus galloprovincialis combined with detailed investigations of the shell ultrastructure. Mussels from the harbour of Ischia (Mediterranean, Italy) were transplanted and grown in water with mean pHT 7.3 and mean pHT 8.1 near CO2 vents on the east coast of the island. Most prominently, the shells recorded the shock of transplantation, both in their shell ultrastructure, textural and geochemical record. Shell calcite, precipitated subsequently under acidified seawater responded to the pH gradient by an in part disturbed ultrastructure. Geochemical data from all test sites show a strong metabolic effect that exceeds the influence of the low-pH environment. These field experiments showed that care is needed when interpreting potential ocean acidification signals because various parameters affect shell chemistry and ultrastructure. Besides metabolic processes, seawater pH, factors such as salinity, water temperature, food availability and population density all affect the biogenic carbonate shell archive. |
| title | Isotope ratios, trace elements and ultrastructure results of Mytilus galloprovincialis shells and experimental site data off Ischia (Italy) |
| topic | BIOACID; Biological Impacts of Ocean Acidification; Mediterranean Sea Acidification in a Changing Climate; MedSeA |
| url | https://doi.org/10.1594/PANGAEA.808133 |