Effect of low pH on growth and shell mechanical properties of the Peruvian scallop Argopecten purpuratus (Lamarck, 1819)
Dissolution of anthropogenic CO2 modifies seawater pH, leading to ocean acidification, which might affect calcifying organisms such as bivalve mollusks. Along the Peruvian coast, however, natural conditions of low pH (7.6–8.0) are encountered in the habitat of the Peruvian scallop (Argopecten purpur...
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Language: | English |
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Elsevier
2022
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Online Access: | https://hdl.handle.net/20.500.12866/11874 https://doi.org/10.1016/j.marenvres.2022.105639 |
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ftuperucayetanoh:oai:repositorio.upch.edu.pe:20.500.12866/11874 2023-05-15T17:50:39+02:00 Effect of low pH on growth and shell mechanical properties of the Peruvian scallop Argopecten purpuratus (Lamarck, 1819) Córdova-Rodríguez, Kathy Flye-Sainte-Marie, Jonathan Fernández, Ernesto Graco, Michelle Rozas, Anibal Aguirre-Velarde, Arturo 2022 https://hdl.handle.net/20.500.12866/11874 https://doi.org/10.1016/j.marenvres.2022.105639 eng eng Elsevier urn:issn:0141-1136 https://hdl.handle.net/20.500.12866/11874 Marine Environmental Research https://doi.org/10.1016/j.marenvres.2022.105639 info:eu-repo/semantics/restrictedAccess https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es CC-BY-NC-ND Ocean acidification Low pH Pectinid Growth Shell Microhardness Crushing force Calcification Upwelling systems info:eu-repo/semantics/article 2022 ftuperucayetanoh https://doi.org/20.500.12866/11874 https://doi.org/10.1016/j.marenvres.2022.105639 2022-08-14T07:03:10Z Dissolution of anthropogenic CO2 modifies seawater pH, leading to ocean acidification, which might affect calcifying organisms such as bivalve mollusks. Along the Peruvian coast, however, natural conditions of low pH (7.6–8.0) are encountered in the habitat of the Peruvian scallop (Argopecten purpuratus), as a consequence of the nearby coastal upwelling influence. To understand the effects of low pH in a species adapted to these environmental conditions, an experiment was performed to test its consequences on growth, calcification, dissolution, and shell mechanical properties in juvenile Peruvian scallops. During 28 days, scallops (initial mean height = 14 mm) were exposed to two contrasted pH conditions: a control with unmanipulated seawater presenting pH conditions similar to those found in situ (pHT = 7.8) and a treatment, in which CO2 was injected to reduce pH to 7.4. At the end of the experiment, shell height and weight, and growth and calcification rates were reduced about 6%, 20%, 9%, and 10% respectively in the low pH treatment. Mechanical properties, such as microhardness were positively affected in the low pH condition and crushing force did not show differences between pH treatments. Final soft tissue weights were not significantly affected by low pH. This study provides evidence of low pH change shell properties increasing the shell microhardness in Peruvian scallops, which implies protective functions. However, the mechanisms behind this response need to be studied in a global change context. Article in Journal/Newspaper Ocean acidification Repositorio Institucional de la UPCH (Universidad Peruana Cayetano Heredia) Lamarck ENVELOPE(140.027,140.027,-66.666,-66.666) Marine Environmental Research 177 105639 |
institution |
Open Polar |
collection |
Repositorio Institucional de la UPCH (Universidad Peruana Cayetano Heredia) |
op_collection_id |
ftuperucayetanoh |
language |
English |
topic |
Ocean acidification Low pH Pectinid Growth Shell Microhardness Crushing force Calcification Upwelling systems |
spellingShingle |
Ocean acidification Low pH Pectinid Growth Shell Microhardness Crushing force Calcification Upwelling systems Córdova-Rodríguez, Kathy Flye-Sainte-Marie, Jonathan Fernández, Ernesto Graco, Michelle Rozas, Anibal Aguirre-Velarde, Arturo Effect of low pH on growth and shell mechanical properties of the Peruvian scallop Argopecten purpuratus (Lamarck, 1819) |
topic_facet |
Ocean acidification Low pH Pectinid Growth Shell Microhardness Crushing force Calcification Upwelling systems |
description |
Dissolution of anthropogenic CO2 modifies seawater pH, leading to ocean acidification, which might affect calcifying organisms such as bivalve mollusks. Along the Peruvian coast, however, natural conditions of low pH (7.6–8.0) are encountered in the habitat of the Peruvian scallop (Argopecten purpuratus), as a consequence of the nearby coastal upwelling influence. To understand the effects of low pH in a species adapted to these environmental conditions, an experiment was performed to test its consequences on growth, calcification, dissolution, and shell mechanical properties in juvenile Peruvian scallops. During 28 days, scallops (initial mean height = 14 mm) were exposed to two contrasted pH conditions: a control with unmanipulated seawater presenting pH conditions similar to those found in situ (pHT = 7.8) and a treatment, in which CO2 was injected to reduce pH to 7.4. At the end of the experiment, shell height and weight, and growth and calcification rates were reduced about 6%, 20%, 9%, and 10% respectively in the low pH treatment. Mechanical properties, such as microhardness were positively affected in the low pH condition and crushing force did not show differences between pH treatments. Final soft tissue weights were not significantly affected by low pH. This study provides evidence of low pH change shell properties increasing the shell microhardness in Peruvian scallops, which implies protective functions. However, the mechanisms behind this response need to be studied in a global change context. |
format |
Article in Journal/Newspaper |
author |
Córdova-Rodríguez, Kathy Flye-Sainte-Marie, Jonathan Fernández, Ernesto Graco, Michelle Rozas, Anibal Aguirre-Velarde, Arturo |
author_facet |
Córdova-Rodríguez, Kathy Flye-Sainte-Marie, Jonathan Fernández, Ernesto Graco, Michelle Rozas, Anibal Aguirre-Velarde, Arturo |
author_sort |
Córdova-Rodríguez, Kathy |
title |
Effect of low pH on growth and shell mechanical properties of the Peruvian scallop Argopecten purpuratus (Lamarck, 1819) |
title_short |
Effect of low pH on growth and shell mechanical properties of the Peruvian scallop Argopecten purpuratus (Lamarck, 1819) |
title_full |
Effect of low pH on growth and shell mechanical properties of the Peruvian scallop Argopecten purpuratus (Lamarck, 1819) |
title_fullStr |
Effect of low pH on growth and shell mechanical properties of the Peruvian scallop Argopecten purpuratus (Lamarck, 1819) |
title_full_unstemmed |
Effect of low pH on growth and shell mechanical properties of the Peruvian scallop Argopecten purpuratus (Lamarck, 1819) |
title_sort |
effect of low ph on growth and shell mechanical properties of the peruvian scallop argopecten purpuratus (lamarck, 1819) |
publisher |
Elsevier |
publishDate |
2022 |
url |
https://hdl.handle.net/20.500.12866/11874 https://doi.org/10.1016/j.marenvres.2022.105639 |
long_lat |
ENVELOPE(140.027,140.027,-66.666,-66.666) |
geographic |
Lamarck |
geographic_facet |
Lamarck |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
urn:issn:0141-1136 https://hdl.handle.net/20.500.12866/11874 Marine Environmental Research https://doi.org/10.1016/j.marenvres.2022.105639 |
op_rights |
info:eu-repo/semantics/restrictedAccess https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/20.500.12866/11874 https://doi.org/10.1016/j.marenvres.2022.105639 |
container_title |
Marine Environmental Research |
container_volume |
177 |
container_start_page |
105639 |
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1766157493597110272 |