The reef builder gastropod Dendropoma petreaum – A proxy of short and long term climatic events in the Eastern Mediterranean

Sisma-Ventura, Guy; Guzner, Barak; Yam, Ruth; Fine, Maoz; Shemesh, Aldo

doi:10.1016/j.gca.2009.04.037

Cited by 24 publications

(18 citation statements)

References 39 publications

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“…According to the authors, the Levantine Basin was probably 1 • C colder than the present during the LIA maximum. However, due to the poor chronological constrain, based on only a single 14 C dating obtained by Antonioli et al [4] in Sicily, care should be taken in interpreting the results presented by Sisma-Venturi et al [7].…”

Section: Vermetid Reefs As Natural Archives Of Past Climatic Variationsmentioning

confidence: 98%

“…Vermetid reefs have only recently been recognised as natural archives for reconstructing past sea-surface temperature variations and sea-level changes [4,6,7,24]. Vermetid bioconstructions are widely distributed in the Mediterranean basin, located between the lower mesolittoral and the upper infralittoral, and are mostly found in place (and not reworked by marine erosion).…”

Section: Vermetid Reefs As Natural Archives Of Past Climatic Variationsmentioning

confidence: 99%

“…Following these promising results, Sisma-Ventura et al [7] reconstructed the sea-surface temperature, hydrology and productivity along the Israeli coast using the δ 18 O and δ 13 C signatures of seven cores. The isotopic data span the last 500 years with an average resolution of 6 years.…”

Section: Vermetid Reefs As Natural Archives Of Past Climatic Variationsmentioning

confidence: 99%

“…Although it has not yet been established whether vermetids have an important effect on the isotopic composition of their shells, or whether seasonality affects this isotopic composition, a preliminary study [6] showed that coeval and living vermetid shells, sampled in different portions of Sicilian reefs, have the same isotopic signature (<0.01‰ variation in δ 18 O). A later, more exhaustive article [7] established that the vermetid isotopic signature is in equilibrium with the environment. Oxygen isotopes obtained from analysis of fossil remains can be converted into temperature records by using the biogenic aragonite vs. temperature fractionation equation [8] and AMS 14 C dating for the age model.…”

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confidence: 99%

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Vermetid reefs in the Mediterranean Sea as archives of sea-level and surface temperature changes

Chemello

Silenzi

2011

Chemistry and Ecology

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Section: Vermetid Reefs As Natural Archives Of Past Climatic Variationsmentioning

confidence: 98%

Section: Vermetid Reefs As Natural Archives Of Past Climatic Variationsmentioning

confidence: 99%

Section: Vermetid Reefs As Natural Archives Of Past Climatic Variationsmentioning

confidence: 99%

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confidence: 99%

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Vermetid reefs in the Mediterranean Sea as archives of sea-level and surface temperature changes

Chemello

Silenzi

2011

Chemistry and Ecology

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“…Many calcified organisms undergo changes in calcite/aragonite crystallography as well as changes in skeletal Ca/Mg/Sr ratios as CO 2 levels increase2223. Dendropoma petraeum build their shells using aragonite24, which dissolves easily due to OA. Here we examined recruitment success and shell composition in transplanted live reef cores in reference areas and along a CO 2 gradient off Sicily (Italy).…”

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Ocean acidification impairs vermetid reef recruitment

Milazzo

Rodolfo‐Metalpa

Chan

et al. 2014

Sci Rep

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Vermetids form reefs in sub-tropical and warm-temperate waters that protect coasts from erosion, regulate sediment transport and accumulation, serve as carbon sinks and provide habitat for other species. The gastropods that form these reefs brood encapsulated larvae; they are threatened by rapid environmental changes since their ability to disperse is very limited. We used transplant experiments along a natural CO2 gradient to assess ocean acidification effects on the reef-building gastropod Dendropoma petraeum. We found that although D. petraeum were able to reproduce and brood at elevated levels of CO2, recruitment success was adversely affected. Long-term exposure to acidified conditions predicted for the year 2100 and beyond caused shell dissolution and a significant increase in shell Mg content. Unless CO2 emissions are reduced and conservation measures taken, our results suggest these reefs are in danger of extinction within this century, with significant ecological and socioeconomic ramifications for coastal systems.

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Recent unprecedented warming and oligotrophy of the eastern Mediterranean Sea within the last millennium

Sisma-Ventura

Yam

Shemesh

2014

Geophysical Research Letters

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The Mediterranean region is a climatic transitional zone between the subtropical/monsoon regime and the temperate westerlies and is subject to forces acting upon the global climate system. Much knowledge about its climate over the last millennium is derived from terrestrial records, whereas changes in sea surface temperatures (SSTs) and in the dissolved inorganic carbon pool (DIC) are poorly known. We present continuous high-resolution reconstructions of SST and δ 13 C DIC in the eastern Mediterranean (EM) Sea, as inferred from oxygen and carbon isotope records from the skeletons of the reef builder gastropod Dendropoma sp. Spanning the past millennium, the SST reconstruction reveals a 250 year persistent warming trend during which the twentieth century was the warmest on record. Coupled with a distinct trend of 13 C DIC depletion and superimposed upon decreased primary production, this climate reconstruction reflects a new state of the EM over the Anthropocene era that exceeds the natural variability of the last millennium.

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The reef builder gastropod Dendropoma petreaum – A proxy of short and long term climatic events in the Eastern Mediterranean

Cited by 24 publications

References 39 publications

Vermetid reefs in the Mediterranean Sea as archives of sea-level and surface temperature changes

Vermetid reefs in the Mediterranean Sea as archives of sea-level and surface temperature changes

Ocean acidification impairs vermetid reef recruitment

Recent unprecedented warming and oligotrophy of the eastern Mediterranean Sea within the last millennium

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