Geographical variation in shell morphology of juvenile snails (Concholepas concholepas) along the physical-chemical gradient of the Chilean coast
Changes in phenotypic traits, such as mollusc shells, are indicative of variations in selective pressure along environmental gradients. Recently, increased sea surface temperature (SST) and ocean acidification (OA) due to increased levels of carbon dioxide in the seawater have been described as sele...
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Format: | Dataset |
Language: | English |
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PANGAEA
2013
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.835629 https://doi.org/10.1594/PANGAEA.835629 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.835629 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Alkalinity total standard deviation Animalia Aragonite saturation state Benthic animals Benthos Bicarbonate ion Calcite saturation state Calculated using CO2SYS Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved Carbonate ion Carbonate system computation flag Carbon dioxide Coast and continental shelf Concholepas concholepas Field observation Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Growth/Morphology Identification Length Location Mollusca OA-ICC Ocean Acidification International Coordination Centre Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) pH Potentiometric Potentiometric titration Salinity Sample code/label Sample code/label 2 Shell dry mass Single species South Pacific Species Temperate Temperature water |
spellingShingle |
Alkalinity total standard deviation Animalia Aragonite saturation state Benthic animals Benthos Bicarbonate ion Calcite saturation state Calculated using CO2SYS Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved Carbonate ion Carbonate system computation flag Carbon dioxide Coast and continental shelf Concholepas concholepas Field observation Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Growth/Morphology Identification Length Location Mollusca OA-ICC Ocean Acidification International Coordination Centre Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) pH Potentiometric Potentiometric titration Salinity Sample code/label Sample code/label 2 Shell dry mass Single species South Pacific Species Temperate Temperature water Ramajo, L Baltanás, Ángel Torres, Rodrigo Manríquez, Patricio H Rodriguez-Navarro, Alejandro Lagos, Nelson A Geographical variation in shell morphology of juvenile snails (Concholepas concholepas) along the physical-chemical gradient of the Chilean coast |
topic_facet |
Alkalinity total standard deviation Animalia Aragonite saturation state Benthic animals Benthos Bicarbonate ion Calcite saturation state Calculated using CO2SYS Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved Carbonate ion Carbonate system computation flag Carbon dioxide Coast and continental shelf Concholepas concholepas Field observation Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Growth/Morphology Identification Length Location Mollusca OA-ICC Ocean Acidification International Coordination Centre Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) pH Potentiometric Potentiometric titration Salinity Sample code/label Sample code/label 2 Shell dry mass Single species South Pacific Species Temperate Temperature water |
description |
Changes in phenotypic traits, such as mollusc shells, are indicative of variations in selective pressure along environmental gradients. Recently, increased sea surface temperature (SST) and ocean acidification (OA) due to increased levels of carbon dioxide in the seawater have been described as selective agents that may affect the biological processes underlying shell formation in calcifying marine organisms. The benthic snail Concholepas concholepas (Muricidae) is widely distributed along the Chilean coast, and so is naturally exposed to a strong physical-chemical latitudinal gradient. In this study, based on elliptical Fourier analysis, we assess changes in shell morphology (outlines analysis) in juvenile C. concholepas collected at northern (23°S), central (33°S) and southern (39°S) locations off the Chilean coast. Shell morphology of individuals collected in northern and central regions correspond to extreme morphotypes, which is in agreement with both the observed regional differences in the shell apex outlines, the high reclassification success of individuals (discriminant function analysis) collected in these regions, and the scaling relationship in shell weight variability among regions. However, these extreme morphotypes showed similar patterns of mineralization of calcium carbonate forms (calcite and aragonite). Geographical variability in shell shape of C. concholepas described by discriminant functions was partially explained by environmental variables (pCO2, SST). This suggests the influence of corrosive waters, such as upwelling and freshwaters penetrating into the coastal ocean, upon spatial variation in shell morphology. Changes in the proportion of calcium carbonate forms precipitated by C. concholepas across their shells and its susceptibility to corrosive coastal waters are discussed. |
format |
Dataset |
author |
Ramajo, L Baltanás, Ángel Torres, Rodrigo Manríquez, Patricio H Rodriguez-Navarro, Alejandro Lagos, Nelson A |
author_facet |
Ramajo, L Baltanás, Ángel Torres, Rodrigo Manríquez, Patricio H Rodriguez-Navarro, Alejandro Lagos, Nelson A |
author_sort |
Ramajo, L |
title |
Geographical variation in shell morphology of juvenile snails (Concholepas concholepas) along the physical-chemical gradient of the Chilean coast |
title_short |
Geographical variation in shell morphology of juvenile snails (Concholepas concholepas) along the physical-chemical gradient of the Chilean coast |
title_full |
Geographical variation in shell morphology of juvenile snails (Concholepas concholepas) along the physical-chemical gradient of the Chilean coast |
title_fullStr |
Geographical variation in shell morphology of juvenile snails (Concholepas concholepas) along the physical-chemical gradient of the Chilean coast |
title_full_unstemmed |
Geographical variation in shell morphology of juvenile snails (Concholepas concholepas) along the physical-chemical gradient of the Chilean coast |
title_sort |
geographical variation in shell morphology of juvenile snails (concholepas concholepas) along the physical-chemical gradient of the chilean coast |
publisher |
PANGAEA |
publishDate |
2013 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.835629 https://doi.org/10.1594/PANGAEA.835629 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Supplement to: Ramajo, L; Baltanás, Ángel; Torres, Rodrigo; Manríquez, Patricio H; Rodriguez-Navarro, Alejandro; Lagos, Nelson A (2013): Geographical variation in shell morphology of juvenile snails (Concholepas concholepas) along the physical–chemical gradient of the Chilean coast. Journal of the Marine Biological Association of the United Kingdom, 93(08), 2167-2176, https://doi.org/10.1017/S0025315413000891 |
op_relation |
Lavigne, Héloïse; Epitalon, Jean-Marie; Gattuso, Jean-Pierre (2014): seacarb: seawater carbonate chemistry with R. R package version 3.0. https://cran.r-project.org/package=seacarb https://doi.pangaea.de/10.1594/PANGAEA.835629 https://doi.org/10.1594/PANGAEA.835629 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.835629 https://doi.org/10.1017/S0025315413000891 |
_version_ |
1766158272829587456 |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.835629 2023-05-15T17:51:12+02:00 Geographical variation in shell morphology of juvenile snails (Concholepas concholepas) along the physical-chemical gradient of the Chilean coast Ramajo, L Baltanás, Ángel Torres, Rodrigo Manríquez, Patricio H Rodriguez-Navarro, Alejandro Lagos, Nelson A 2013-09-10 text/tab-separated-values, 5424 data points https://doi.pangaea.de/10.1594/PANGAEA.835629 https://doi.org/10.1594/PANGAEA.835629 en eng PANGAEA Lavigne, Héloïse; Epitalon, Jean-Marie; Gattuso, Jean-Pierre (2014): seacarb: seawater carbonate chemistry with R. R package version 3.0. https://cran.r-project.org/package=seacarb https://doi.pangaea.de/10.1594/PANGAEA.835629 https://doi.org/10.1594/PANGAEA.835629 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Ramajo, L; Baltanás, Ángel; Torres, Rodrigo; Manríquez, Patricio H; Rodriguez-Navarro, Alejandro; Lagos, Nelson A (2013): Geographical variation in shell morphology of juvenile snails (Concholepas concholepas) along the physical–chemical gradient of the Chilean coast. Journal of the Marine Biological Association of the United Kingdom, 93(08), 2167-2176, https://doi.org/10.1017/S0025315413000891 Alkalinity total standard deviation Animalia Aragonite saturation state Benthic animals Benthos Bicarbonate ion Calcite saturation state Calculated using CO2SYS Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved Carbonate ion Carbonate system computation flag Carbon dioxide Coast and continental shelf Concholepas concholepas Field observation Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Growth/Morphology Identification Length Location Mollusca OA-ICC Ocean Acidification International Coordination Centre Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) pH Potentiometric Potentiometric titration Salinity Sample code/label Sample code/label 2 Shell dry mass Single species South Pacific Species Temperate Temperature water Dataset 2013 ftpangaea https://doi.org/10.1594/PANGAEA.835629 https://doi.org/10.1017/S0025315413000891 2023-01-20T09:03:44Z Changes in phenotypic traits, such as mollusc shells, are indicative of variations in selective pressure along environmental gradients. Recently, increased sea surface temperature (SST) and ocean acidification (OA) due to increased levels of carbon dioxide in the seawater have been described as selective agents that may affect the biological processes underlying shell formation in calcifying marine organisms. The benthic snail Concholepas concholepas (Muricidae) is widely distributed along the Chilean coast, and so is naturally exposed to a strong physical-chemical latitudinal gradient. In this study, based on elliptical Fourier analysis, we assess changes in shell morphology (outlines analysis) in juvenile C. concholepas collected at northern (23°S), central (33°S) and southern (39°S) locations off the Chilean coast. Shell morphology of individuals collected in northern and central regions correspond to extreme morphotypes, which is in agreement with both the observed regional differences in the shell apex outlines, the high reclassification success of individuals (discriminant function analysis) collected in these regions, and the scaling relationship in shell weight variability among regions. However, these extreme morphotypes showed similar patterns of mineralization of calcium carbonate forms (calcite and aragonite). Geographical variability in shell shape of C. concholepas described by discriminant functions was partially explained by environmental variables (pCO2, SST). This suggests the influence of corrosive waters, such as upwelling and freshwaters penetrating into the coastal ocean, upon spatial variation in shell morphology. Changes in the proportion of calcium carbonate forms precipitated by C. concholepas across their shells and its susceptibility to corrosive coastal waters are discussed. Dataset Ocean acidification PANGAEA - Data Publisher for Earth & Environmental Science Pacific |