Volcanic $ CO_{2} $ seep geochemistry and use in understanding ocean acidification
Abstract Ocean acidification is one of the most dramatic effects of the massive atmospheric release of anthropogenic carbon dioxide ($ CO_{2} $) that has occurred since the Industrial Revolution, although its effects on marine ecosystems are not well understood. Submarine volcanic hydrothermal field...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Aiuppa, A. [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2020 |
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| Schlagwörter: |
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| Anmerkung: |
© The Author(s) 2020 |
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| Übergeordnetes Werk: |
Enthalten in: Biogeochemistry - Springer International Publishing, 1984, 152(2020), 1 vom: 09. Dez., Seite 93-115 |
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| Übergeordnetes Werk: |
volume:152 ; year:2020 ; number:1 ; day:09 ; month:12 ; pages:93-115 |
| Links: |
|---|
| DOI / URN: |
10.1007/s10533-020-00737-9 |
|---|
| Katalog-ID: |
OLC2122636963 |
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| 520 | |a Abstract Ocean acidification is one of the most dramatic effects of the massive atmospheric release of anthropogenic carbon dioxide ($ CO_{2} $) that has occurred since the Industrial Revolution, although its effects on marine ecosystems are not well understood. Submarine volcanic hydrothermal fields have geochemical conditions that provide opportunities to characterise the effects of elevated levels of seawater $ CO_{2} $ on marine life in the field. Here, we review the geochemical aspects of shallow marine $ CO_{2} $-rich seeps worldwide, focusing on both gas composition and water chemistry. We then describe the geochemical effects of volcanic $ CO_{2} $ seepage on the overlying seawater column. We also present new geochemical data and the first synthesis of marine biological community changes from one of the best-studied marine $ CO_{2} $ seep sites in the world (off Vulcano Island, Sicily). In areas of intense bubbling, extremely high levels of $ pCO_{2} $ (> 10,000 μatm) result in low seawater pH (< 6) and undersaturation of aragonite and calcite in an area devoid of calcified organisms such as shelled molluscs and hard corals. Around 100–400 m away from the Vulcano seeps the geochemistry of the seawater becomes analogous to future ocean acidification conditions with dissolved carbon dioxide levels falling from 900 to 420 μatm as seawater pH rises from 7.6 to 8.0. Calcified species such as coralline algae and sea urchins fare increasingly well as sessile communities shift from domination by a few resilient species (such as uncalcified algae and polychaetes) to a diverse and complex community (including abundant calcified algae and sea urchins) as the seawater returns to ambient levels of $ CO_{2} $. Laboratory advances in our understanding of species sensitivity to high $ CO_{2} $ and low pH seawater, reveal how marine organisms react to simulated ocean acidification conditions (e.g., using energetic trade-offs for calcification, reproduction, growth and survival). Research at volcanic marine seeps, such as those off Vulcano, highlight consistent ecosystem responses to rising levels of seawater $ CO_{2} $, with the simplification of food webs, losses in functional diversity and reduced provisioning of goods and services for humans. | ||
| 650 | 4 | |a Calcifying species | |
| 650 | 4 | |a Ecosystem effects | |
| 650 | 4 | |a Natural analogues | |
| 650 | 4 | |a Submarine hydrothermalism | |
| 700 | 1 | |a Hall-Spencer, J. M. |4 aut | |
| 700 | 1 | |a Milazzo, M. |4 aut | |
| 700 | 1 | |a Turco, G. |4 aut | |
| 700 | 1 | |a Caliro, S. |4 aut | |
| 700 | 1 | |a Di Napoli, R. |4 aut | |
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10.1007/s10533-020-00737-9 doi (DE-627)OLC2122636963 (DE-He213)s10533-020-00737-9-p DE-627 ger DE-627 rakwb eng 540 550 VZ 13 ssgn Aiuppa, A. verfasserin (orcid)0000-0002-0254-6539 aut Volcanic $ CO_{2} $ seep geochemistry and use in understanding ocean acidification 2020 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © The Author(s) 2020 Abstract Ocean acidification is one of the most dramatic effects of the massive atmospheric release of anthropogenic carbon dioxide ($ CO_{2} $) that has occurred since the Industrial Revolution, although its effects on marine ecosystems are not well understood. Submarine volcanic hydrothermal fields have geochemical conditions that provide opportunities to characterise the effects of elevated levels of seawater $ CO_{2} $ on marine life in the field. Here, we review the geochemical aspects of shallow marine $ CO_{2} $-rich seeps worldwide, focusing on both gas composition and water chemistry. We then describe the geochemical effects of volcanic $ CO_{2} $ seepage on the overlying seawater column. We also present new geochemical data and the first synthesis of marine biological community changes from one of the best-studied marine $ CO_{2} $ seep sites in the world (off Vulcano Island, Sicily). In areas of intense bubbling, extremely high levels of $ pCO_{2} $ (> 10,000 μatm) result in low seawater pH (< 6) and undersaturation of aragonite and calcite in an area devoid of calcified organisms such as shelled molluscs and hard corals. Around 100–400 m away from the Vulcano seeps the geochemistry of the seawater becomes analogous to future ocean acidification conditions with dissolved carbon dioxide levels falling from 900 to 420 μatm as seawater pH rises from 7.6 to 8.0. Calcified species such as coralline algae and sea urchins fare increasingly well as sessile communities shift from domination by a few resilient species (such as uncalcified algae and polychaetes) to a diverse and complex community (including abundant calcified algae and sea urchins) as the seawater returns to ambient levels of $ CO_{2} $. Laboratory advances in our understanding of species sensitivity to high $ CO_{2} $ and low pH seawater, reveal how marine organisms react to simulated ocean acidification conditions (e.g., using energetic trade-offs for calcification, reproduction, growth and survival). Research at volcanic marine seeps, such as those off Vulcano, highlight consistent ecosystem responses to rising levels of seawater $ CO_{2} $, with the simplification of food webs, losses in functional diversity and reduced provisioning of goods and services for humans. Calcifying species Ecosystem effects Natural analogues Submarine hydrothermalism Hall-Spencer, J. M. aut Milazzo, M. aut Turco, G. aut Caliro, S. aut Di Napoli, R. aut Enthalten in Biogeochemistry Springer International Publishing, 1984 152(2020), 1 vom: 09. Dez., Seite 93-115 (DE-627)12916786X (DE-600)50671-0 (DE-576)014454904 0168-2563 nnns volume:152 year:2020 number:1 day:09 month:12 pages:93-115 https://doi.org/10.1007/s10533-020-00737-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-CHE SSG-OLC-GEO SSG-OLC-FOR SSG-OPC-GGO GBV_ILN_70 AR 152 2020 1 09 12 93-115 |
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10.1007/s10533-020-00737-9 doi (DE-627)OLC2122636963 (DE-He213)s10533-020-00737-9-p DE-627 ger DE-627 rakwb eng 540 550 VZ 13 ssgn Aiuppa, A. verfasserin (orcid)0000-0002-0254-6539 aut Volcanic $ CO_{2} $ seep geochemistry and use in understanding ocean acidification 2020 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © The Author(s) 2020 Abstract Ocean acidification is one of the most dramatic effects of the massive atmospheric release of anthropogenic carbon dioxide ($ CO_{2} $) that has occurred since the Industrial Revolution, although its effects on marine ecosystems are not well understood. Submarine volcanic hydrothermal fields have geochemical conditions that provide opportunities to characterise the effects of elevated levels of seawater $ CO_{2} $ on marine life in the field. Here, we review the geochemical aspects of shallow marine $ CO_{2} $-rich seeps worldwide, focusing on both gas composition and water chemistry. We then describe the geochemical effects of volcanic $ CO_{2} $ seepage on the overlying seawater column. We also present new geochemical data and the first synthesis of marine biological community changes from one of the best-studied marine $ CO_{2} $ seep sites in the world (off Vulcano Island, Sicily). In areas of intense bubbling, extremely high levels of $ pCO_{2} $ (> 10,000 μatm) result in low seawater pH (< 6) and undersaturation of aragonite and calcite in an area devoid of calcified organisms such as shelled molluscs and hard corals. Around 100–400 m away from the Vulcano seeps the geochemistry of the seawater becomes analogous to future ocean acidification conditions with dissolved carbon dioxide levels falling from 900 to 420 μatm as seawater pH rises from 7.6 to 8.0. Calcified species such as coralline algae and sea urchins fare increasingly well as sessile communities shift from domination by a few resilient species (such as uncalcified algae and polychaetes) to a diverse and complex community (including abundant calcified algae and sea urchins) as the seawater returns to ambient levels of $ CO_{2} $. Laboratory advances in our understanding of species sensitivity to high $ CO_{2} $ and low pH seawater, reveal how marine organisms react to simulated ocean acidification conditions (e.g., using energetic trade-offs for calcification, reproduction, growth and survival). Research at volcanic marine seeps, such as those off Vulcano, highlight consistent ecosystem responses to rising levels of seawater $ CO_{2} $, with the simplification of food webs, losses in functional diversity and reduced provisioning of goods and services for humans. Calcifying species Ecosystem effects Natural analogues Submarine hydrothermalism Hall-Spencer, J. M. aut Milazzo, M. aut Turco, G. aut Caliro, S. aut Di Napoli, R. aut Enthalten in Biogeochemistry Springer International Publishing, 1984 152(2020), 1 vom: 09. Dez., Seite 93-115 (DE-627)12916786X (DE-600)50671-0 (DE-576)014454904 0168-2563 nnns volume:152 year:2020 number:1 day:09 month:12 pages:93-115 https://doi.org/10.1007/s10533-020-00737-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-CHE SSG-OLC-GEO SSG-OLC-FOR SSG-OPC-GGO GBV_ILN_70 AR 152 2020 1 09 12 93-115 |
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10.1007/s10533-020-00737-9 doi (DE-627)OLC2122636963 (DE-He213)s10533-020-00737-9-p DE-627 ger DE-627 rakwb eng 540 550 VZ 13 ssgn Aiuppa, A. verfasserin (orcid)0000-0002-0254-6539 aut Volcanic $ CO_{2} $ seep geochemistry and use in understanding ocean acidification 2020 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © The Author(s) 2020 Abstract Ocean acidification is one of the most dramatic effects of the massive atmospheric release of anthropogenic carbon dioxide ($ CO_{2} $) that has occurred since the Industrial Revolution, although its effects on marine ecosystems are not well understood. Submarine volcanic hydrothermal fields have geochemical conditions that provide opportunities to characterise the effects of elevated levels of seawater $ CO_{2} $ on marine life in the field. Here, we review the geochemical aspects of shallow marine $ CO_{2} $-rich seeps worldwide, focusing on both gas composition and water chemistry. We then describe the geochemical effects of volcanic $ CO_{2} $ seepage on the overlying seawater column. We also present new geochemical data and the first synthesis of marine biological community changes from one of the best-studied marine $ CO_{2} $ seep sites in the world (off Vulcano Island, Sicily). In areas of intense bubbling, extremely high levels of $ pCO_{2} $ (> 10,000 μatm) result in low seawater pH (< 6) and undersaturation of aragonite and calcite in an area devoid of calcified organisms such as shelled molluscs and hard corals. Around 100–400 m away from the Vulcano seeps the geochemistry of the seawater becomes analogous to future ocean acidification conditions with dissolved carbon dioxide levels falling from 900 to 420 μatm as seawater pH rises from 7.6 to 8.0. Calcified species such as coralline algae and sea urchins fare increasingly well as sessile communities shift from domination by a few resilient species (such as uncalcified algae and polychaetes) to a diverse and complex community (including abundant calcified algae and sea urchins) as the seawater returns to ambient levels of $ CO_{2} $. Laboratory advances in our understanding of species sensitivity to high $ CO_{2} $ and low pH seawater, reveal how marine organisms react to simulated ocean acidification conditions (e.g., using energetic trade-offs for calcification, reproduction, growth and survival). Research at volcanic marine seeps, such as those off Vulcano, highlight consistent ecosystem responses to rising levels of seawater $ CO_{2} $, with the simplification of food webs, losses in functional diversity and reduced provisioning of goods and services for humans. Calcifying species Ecosystem effects Natural analogues Submarine hydrothermalism Hall-Spencer, J. M. aut Milazzo, M. aut Turco, G. aut Caliro, S. aut Di Napoli, R. aut Enthalten in Biogeochemistry Springer International Publishing, 1984 152(2020), 1 vom: 09. Dez., Seite 93-115 (DE-627)12916786X (DE-600)50671-0 (DE-576)014454904 0168-2563 nnns volume:152 year:2020 number:1 day:09 month:12 pages:93-115 https://doi.org/10.1007/s10533-020-00737-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-CHE SSG-OLC-GEO SSG-OLC-FOR SSG-OPC-GGO GBV_ILN_70 AR 152 2020 1 09 12 93-115 |
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10.1007/s10533-020-00737-9 doi (DE-627)OLC2122636963 (DE-He213)s10533-020-00737-9-p DE-627 ger DE-627 rakwb eng 540 550 VZ 13 ssgn Aiuppa, A. verfasserin (orcid)0000-0002-0254-6539 aut Volcanic $ CO_{2} $ seep geochemistry and use in understanding ocean acidification 2020 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © The Author(s) 2020 Abstract Ocean acidification is one of the most dramatic effects of the massive atmospheric release of anthropogenic carbon dioxide ($ CO_{2} $) that has occurred since the Industrial Revolution, although its effects on marine ecosystems are not well understood. Submarine volcanic hydrothermal fields have geochemical conditions that provide opportunities to characterise the effects of elevated levels of seawater $ CO_{2} $ on marine life in the field. Here, we review the geochemical aspects of shallow marine $ CO_{2} $-rich seeps worldwide, focusing on both gas composition and water chemistry. We then describe the geochemical effects of volcanic $ CO_{2} $ seepage on the overlying seawater column. We also present new geochemical data and the first synthesis of marine biological community changes from one of the best-studied marine $ CO_{2} $ seep sites in the world (off Vulcano Island, Sicily). In areas of intense bubbling, extremely high levels of $ pCO_{2} $ (> 10,000 μatm) result in low seawater pH (< 6) and undersaturation of aragonite and calcite in an area devoid of calcified organisms such as shelled molluscs and hard corals. Around 100–400 m away from the Vulcano seeps the geochemistry of the seawater becomes analogous to future ocean acidification conditions with dissolved carbon dioxide levels falling from 900 to 420 μatm as seawater pH rises from 7.6 to 8.0. Calcified species such as coralline algae and sea urchins fare increasingly well as sessile communities shift from domination by a few resilient species (such as uncalcified algae and polychaetes) to a diverse and complex community (including abundant calcified algae and sea urchins) as the seawater returns to ambient levels of $ CO_{2} $. Laboratory advances in our understanding of species sensitivity to high $ CO_{2} $ and low pH seawater, reveal how marine organisms react to simulated ocean acidification conditions (e.g., using energetic trade-offs for calcification, reproduction, growth and survival). Research at volcanic marine seeps, such as those off Vulcano, highlight consistent ecosystem responses to rising levels of seawater $ CO_{2} $, with the simplification of food webs, losses in functional diversity and reduced provisioning of goods and services for humans. Calcifying species Ecosystem effects Natural analogues Submarine hydrothermalism Hall-Spencer, J. M. aut Milazzo, M. aut Turco, G. aut Caliro, S. aut Di Napoli, R. aut Enthalten in Biogeochemistry Springer International Publishing, 1984 152(2020), 1 vom: 09. Dez., Seite 93-115 (DE-627)12916786X (DE-600)50671-0 (DE-576)014454904 0168-2563 nnns volume:152 year:2020 number:1 day:09 month:12 pages:93-115 https://doi.org/10.1007/s10533-020-00737-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-CHE SSG-OLC-GEO SSG-OLC-FOR SSG-OPC-GGO GBV_ILN_70 AR 152 2020 1 09 12 93-115 |
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10.1007/s10533-020-00737-9 doi (DE-627)OLC2122636963 (DE-He213)s10533-020-00737-9-p DE-627 ger DE-627 rakwb eng 540 550 VZ 13 ssgn Aiuppa, A. verfasserin (orcid)0000-0002-0254-6539 aut Volcanic $ CO_{2} $ seep geochemistry and use in understanding ocean acidification 2020 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © The Author(s) 2020 Abstract Ocean acidification is one of the most dramatic effects of the massive atmospheric release of anthropogenic carbon dioxide ($ CO_{2} $) that has occurred since the Industrial Revolution, although its effects on marine ecosystems are not well understood. Submarine volcanic hydrothermal fields have geochemical conditions that provide opportunities to characterise the effects of elevated levels of seawater $ CO_{2} $ on marine life in the field. Here, we review the geochemical aspects of shallow marine $ CO_{2} $-rich seeps worldwide, focusing on both gas composition and water chemistry. We then describe the geochemical effects of volcanic $ CO_{2} $ seepage on the overlying seawater column. We also present new geochemical data and the first synthesis of marine biological community changes from one of the best-studied marine $ CO_{2} $ seep sites in the world (off Vulcano Island, Sicily). In areas of intense bubbling, extremely high levels of $ pCO_{2} $ (> 10,000 μatm) result in low seawater pH (< 6) and undersaturation of aragonite and calcite in an area devoid of calcified organisms such as shelled molluscs and hard corals. Around 100–400 m away from the Vulcano seeps the geochemistry of the seawater becomes analogous to future ocean acidification conditions with dissolved carbon dioxide levels falling from 900 to 420 μatm as seawater pH rises from 7.6 to 8.0. Calcified species such as coralline algae and sea urchins fare increasingly well as sessile communities shift from domination by a few resilient species (such as uncalcified algae and polychaetes) to a diverse and complex community (including abundant calcified algae and sea urchins) as the seawater returns to ambient levels of $ CO_{2} $. Laboratory advances in our understanding of species sensitivity to high $ CO_{2} $ and low pH seawater, reveal how marine organisms react to simulated ocean acidification conditions (e.g., using energetic trade-offs for calcification, reproduction, growth and survival). Research at volcanic marine seeps, such as those off Vulcano, highlight consistent ecosystem responses to rising levels of seawater $ CO_{2} $, with the simplification of food webs, losses in functional diversity and reduced provisioning of goods and services for humans. Calcifying species Ecosystem effects Natural analogues Submarine hydrothermalism Hall-Spencer, J. M. aut Milazzo, M. aut Turco, G. aut Caliro, S. aut Di Napoli, R. aut Enthalten in Biogeochemistry Springer International Publishing, 1984 152(2020), 1 vom: 09. Dez., Seite 93-115 (DE-627)12916786X (DE-600)50671-0 (DE-576)014454904 0168-2563 nnns volume:152 year:2020 number:1 day:09 month:12 pages:93-115 https://doi.org/10.1007/s10533-020-00737-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-CHE SSG-OLC-GEO SSG-OLC-FOR SSG-OPC-GGO GBV_ILN_70 AR 152 2020 1 09 12 93-115 |
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volcanic $ co_{2} $ seep geochemistry and use in understanding ocean acidification |
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Volcanic $ CO_{2} $ seep geochemistry and use in understanding ocean acidification |
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Abstract Ocean acidification is one of the most dramatic effects of the massive atmospheric release of anthropogenic carbon dioxide ($ CO_{2} $) that has occurred since the Industrial Revolution, although its effects on marine ecosystems are not well understood. Submarine volcanic hydrothermal fields have geochemical conditions that provide opportunities to characterise the effects of elevated levels of seawater $ CO_{2} $ on marine life in the field. Here, we review the geochemical aspects of shallow marine $ CO_{2} $-rich seeps worldwide, focusing on both gas composition and water chemistry. We then describe the geochemical effects of volcanic $ CO_{2} $ seepage on the overlying seawater column. We also present new geochemical data and the first synthesis of marine biological community changes from one of the best-studied marine $ CO_{2} $ seep sites in the world (off Vulcano Island, Sicily). In areas of intense bubbling, extremely high levels of $ pCO_{2} $ (> 10,000 μatm) result in low seawater pH (< 6) and undersaturation of aragonite and calcite in an area devoid of calcified organisms such as shelled molluscs and hard corals. Around 100–400 m away from the Vulcano seeps the geochemistry of the seawater becomes analogous to future ocean acidification conditions with dissolved carbon dioxide levels falling from 900 to 420 μatm as seawater pH rises from 7.6 to 8.0. Calcified species such as coralline algae and sea urchins fare increasingly well as sessile communities shift from domination by a few resilient species (such as uncalcified algae and polychaetes) to a diverse and complex community (including abundant calcified algae and sea urchins) as the seawater returns to ambient levels of $ CO_{2} $. Laboratory advances in our understanding of species sensitivity to high $ CO_{2} $ and low pH seawater, reveal how marine organisms react to simulated ocean acidification conditions (e.g., using energetic trade-offs for calcification, reproduction, growth and survival). Research at volcanic marine seeps, such as those off Vulcano, highlight consistent ecosystem responses to rising levels of seawater $ CO_{2} $, with the simplification of food webs, losses in functional diversity and reduced provisioning of goods and services for humans. © The Author(s) 2020 |
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Abstract Ocean acidification is one of the most dramatic effects of the massive atmospheric release of anthropogenic carbon dioxide ($ CO_{2} $) that has occurred since the Industrial Revolution, although its effects on marine ecosystems are not well understood. Submarine volcanic hydrothermal fields have geochemical conditions that provide opportunities to characterise the effects of elevated levels of seawater $ CO_{2} $ on marine life in the field. Here, we review the geochemical aspects of shallow marine $ CO_{2} $-rich seeps worldwide, focusing on both gas composition and water chemistry. We then describe the geochemical effects of volcanic $ CO_{2} $ seepage on the overlying seawater column. We also present new geochemical data and the first synthesis of marine biological community changes from one of the best-studied marine $ CO_{2} $ seep sites in the world (off Vulcano Island, Sicily). In areas of intense bubbling, extremely high levels of $ pCO_{2} $ (> 10,000 μatm) result in low seawater pH (< 6) and undersaturation of aragonite and calcite in an area devoid of calcified organisms such as shelled molluscs and hard corals. Around 100–400 m away from the Vulcano seeps the geochemistry of the seawater becomes analogous to future ocean acidification conditions with dissolved carbon dioxide levels falling from 900 to 420 μatm as seawater pH rises from 7.6 to 8.0. Calcified species such as coralline algae and sea urchins fare increasingly well as sessile communities shift from domination by a few resilient species (such as uncalcified algae and polychaetes) to a diverse and complex community (including abundant calcified algae and sea urchins) as the seawater returns to ambient levels of $ CO_{2} $. Laboratory advances in our understanding of species sensitivity to high $ CO_{2} $ and low pH seawater, reveal how marine organisms react to simulated ocean acidification conditions (e.g., using energetic trade-offs for calcification, reproduction, growth and survival). Research at volcanic marine seeps, such as those off Vulcano, highlight consistent ecosystem responses to rising levels of seawater $ CO_{2} $, with the simplification of food webs, losses in functional diversity and reduced provisioning of goods and services for humans. © The Author(s) 2020 |
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Abstract Ocean acidification is one of the most dramatic effects of the massive atmospheric release of anthropogenic carbon dioxide ($ CO_{2} $) that has occurred since the Industrial Revolution, although its effects on marine ecosystems are not well understood. Submarine volcanic hydrothermal fields have geochemical conditions that provide opportunities to characterise the effects of elevated levels of seawater $ CO_{2} $ on marine life in the field. Here, we review the geochemical aspects of shallow marine $ CO_{2} $-rich seeps worldwide, focusing on both gas composition and water chemistry. We then describe the geochemical effects of volcanic $ CO_{2} $ seepage on the overlying seawater column. We also present new geochemical data and the first synthesis of marine biological community changes from one of the best-studied marine $ CO_{2} $ seep sites in the world (off Vulcano Island, Sicily). In areas of intense bubbling, extremely high levels of $ pCO_{2} $ (> 10,000 μatm) result in low seawater pH (< 6) and undersaturation of aragonite and calcite in an area devoid of calcified organisms such as shelled molluscs and hard corals. Around 100–400 m away from the Vulcano seeps the geochemistry of the seawater becomes analogous to future ocean acidification conditions with dissolved carbon dioxide levels falling from 900 to 420 μatm as seawater pH rises from 7.6 to 8.0. Calcified species such as coralline algae and sea urchins fare increasingly well as sessile communities shift from domination by a few resilient species (such as uncalcified algae and polychaetes) to a diverse and complex community (including abundant calcified algae and sea urchins) as the seawater returns to ambient levels of $ CO_{2} $. Laboratory advances in our understanding of species sensitivity to high $ CO_{2} $ and low pH seawater, reveal how marine organisms react to simulated ocean acidification conditions (e.g., using energetic trade-offs for calcification, reproduction, growth and survival). Research at volcanic marine seeps, such as those off Vulcano, highlight consistent ecosystem responses to rising levels of seawater $ CO_{2} $, with the simplification of food webs, losses in functional diversity and reduced provisioning of goods and services for humans. © The Author(s) 2020 |
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