Acid-base adjustments and first evidence of denticle corrosion caused by ocean acidification conditions in a demersal shark species
Abstract Global ocean acidification is expected to chronically lower the pH to 7.3 (>2200 µatm seawater p CO 2 ) by the year 2300. Acute hypercapnia already occurs along the South African west and south coasts due to upwelling- and low-oxygen events, with increasing frequency. In the present...
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crspringernat:10.1038/s41598-019-54795-7 2023-05-15T17:49:59+02:00 Acid-base adjustments and first evidence of denticle corrosion caused by ocean acidification conditions in a demersal shark species Dziergwa, Jacqueline Singh, Sarika Bridges, Christopher R. Kerwath, Sven E. Enax, Joachim Auerswald, Lutz 2019 http://dx.doi.org/10.1038/s41598-019-54795-7 http://www.nature.com/articles/s41598-019-54795-7.pdf http://www.nature.com/articles/s41598-019-54795-7 en eng Springer Science and Business Media LLC https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Scientific Reports volume 9, issue 1 ISSN 2045-2322 Multidisciplinary journal-article 2019 crspringernat https://doi.org/10.1038/s41598-019-54795-7 2022-01-04T07:20:37Z Abstract Global ocean acidification is expected to chronically lower the pH to 7.3 (>2200 µatm seawater p CO 2 ) by the year 2300. Acute hypercapnia already occurs along the South African west and south coasts due to upwelling- and low-oxygen events, with increasing frequency. In the present project we investigated the impact of hypercapnia on the endemic demersal shark species Haploblepharus edwardsii . Specifically, we experimentally analysed acid-base regulation during acute and chronic hypercapnia, the effects of chronic hypercapnia on growth rates and on denticle structure- and composition. While H. edwardsii are physiologically well adapted to acute and chronic hypercapnia, we observed, for the first time, denticle corrosion as a result of chronic exposure. We conclude that denticle corrosion could increase denticle turnover and compromise hydrodynamics and skin protection. Article in Journal/Newspaper Ocean acidification Springer Nature (via Crossref) Scientific Reports 9 1 |
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Springer Nature (via Crossref) |
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English |
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Multidisciplinary Dziergwa, Jacqueline Singh, Sarika Bridges, Christopher R. Kerwath, Sven E. Enax, Joachim Auerswald, Lutz Acid-base adjustments and first evidence of denticle corrosion caused by ocean acidification conditions in a demersal shark species |
topic_facet |
Multidisciplinary |
description |
Abstract Global ocean acidification is expected to chronically lower the pH to 7.3 (>2200 µatm seawater p CO 2 ) by the year 2300. Acute hypercapnia already occurs along the South African west and south coasts due to upwelling- and low-oxygen events, with increasing frequency. In the present project we investigated the impact of hypercapnia on the endemic demersal shark species Haploblepharus edwardsii . Specifically, we experimentally analysed acid-base regulation during acute and chronic hypercapnia, the effects of chronic hypercapnia on growth rates and on denticle structure- and composition. While H. edwardsii are physiologically well adapted to acute and chronic hypercapnia, we observed, for the first time, denticle corrosion as a result of chronic exposure. We conclude that denticle corrosion could increase denticle turnover and compromise hydrodynamics and skin protection. |
format |
Article in Journal/Newspaper |
author |
Dziergwa, Jacqueline Singh, Sarika Bridges, Christopher R. Kerwath, Sven E. Enax, Joachim Auerswald, Lutz |
author_facet |
Dziergwa, Jacqueline Singh, Sarika Bridges, Christopher R. Kerwath, Sven E. Enax, Joachim Auerswald, Lutz |
author_sort |
Dziergwa, Jacqueline |
title |
Acid-base adjustments and first evidence of denticle corrosion caused by ocean acidification conditions in a demersal shark species |
title_short |
Acid-base adjustments and first evidence of denticle corrosion caused by ocean acidification conditions in a demersal shark species |
title_full |
Acid-base adjustments and first evidence of denticle corrosion caused by ocean acidification conditions in a demersal shark species |
title_fullStr |
Acid-base adjustments and first evidence of denticle corrosion caused by ocean acidification conditions in a demersal shark species |
title_full_unstemmed |
Acid-base adjustments and first evidence of denticle corrosion caused by ocean acidification conditions in a demersal shark species |
title_sort |
acid-base adjustments and first evidence of denticle corrosion caused by ocean acidification conditions in a demersal shark species |
publisher |
Springer Science and Business Media LLC |
publishDate |
2019 |
url |
http://dx.doi.org/10.1038/s41598-019-54795-7 http://www.nature.com/articles/s41598-019-54795-7.pdf http://www.nature.com/articles/s41598-019-54795-7 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Scientific Reports volume 9, issue 1 ISSN 2045-2322 |
op_rights |
https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/s41598-019-54795-7 |
container_title |
Scientific Reports |
container_volume |
9 |
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1 |
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1766156542738956288 |