{"id":1520,"date":"2019-12-12T09:45:35","date_gmt":"2019-12-12T09:45:35","guid":{"rendered":"https:\/\/wp.ull.es\/omacc\/?post_type=project&p=1520"},"modified":"2025-12-29T10:07:21","modified_gmt":"2025-12-29T10:07:21","slug":"effects-of-long-term-exposure-to-reduced-ph-conditions-on-the-shell-and-survival-of-an-intertidal-gastropod-viotti-et-al-2019","status":"publish","type":"project","link":"https:\/\/wp.ull.es\/omacc\/project\/effects-of-long-term-exposure-to-reduced-ph-conditions-on-the-shell-and-survival-of-an-intertidal-gastropod-viotti-et-al-2019\/","title":{"rendered":"Effects of long-term exposure to reduced pH conditions on the shell and survival of an intertidal gastropod. Viotti et al., 2019"},"content":{"rendered":"[et_pb_section fb_built=\u00bb1″ _builder_version=\u00bb4.9.7″ _module_preset=\u00bbdefault\u00bb][et_pb_row _builder_version=\u00bb4.9.7″ _module_preset=\u00bbdefault\u00bb][et_pb_column type=\u00bb4_4″ _builder_version=\u00bb4.9.7″ _module_preset=\u00bbdefault\u00bb][et_pb_text _builder_version=\u00bb4.9.7″ _module_preset=\u00bbdefault\u00bb header_2_font=\u00bb|700|||||||\u00bb]\n

Effects of long-term exposure to reduced pH conditions on the shell and survival of an intertidal gastropod<\/h2>\n[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=\u00bb2_5,3_5″ _builder_version=\u00bb4.9.7″ _module_preset=\u00bbdefault\u00bb][et_pb_column type=\u00bb2_5″ _builder_version=\u00bb4.9.7″ _module_preset=\u00bbdefault\u00bb][et_pb_image src=\u00bbhttps:\/\/wp.ull.es\/omacc\/wp-content\/uploads\/sites\/110\/2022\/04\/2019-Viotti-et-al.MER_.jpeg\u00bb title_text=\u00bb2019-Viotti et al.,MER\u00bb _builder_version=\u00bb4.9.7″ _module_preset=\u00bbdefault\u00bb border_width_all=\u00bb2px\u00bb border_color_all=\u00bb#0C997F\u00bb][\/et_pb_image][\/et_pb_column][et_pb_column type=\u00bb3_5″ _builder_version=\u00bb4.9.7″ _module_preset=\u00bbdefault\u00bb][et_pb_text _builder_version=\u00bb4.9.7″ _module_preset=\u00bbdefault\u00bb]\n
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2019. VIOTTI, S., C. SANGIL, C.A. HERN\u00c1NDEZ & J.C. HERN\u00c1NDEZ. Effects of long-term exposure to reduced pH conditions on the shell and survival of an intertidal gastropod. Marine Environmental Research 152, 104789<\/p>\n<\/blockquote>\n[\/et_pb_text][et_pb_text _builder_version=\u00bb4.9.7″ _module_preset=\u00bbdefault\u00bb]\n

Las surgencias volc\u00e1nicos de CO2 son entornos \u00fatiles para investigar las respuestas biol\u00f3gicas de los organismos marinos a los cambios en las condiciones oce\u00e1nicas (acidificaci\u00f3n del oc\u00e9ano, AO). Los moluscos marinos con concha son muy sensibles a los cambios en la qu\u00edmica de los carbonatos del agua de mar. En este estudio, investigamos los efectos de la reducci\u00f3n del pH en el gaster\u00f3podo intermareal, Phorcus sauciatus, en una surgencia volc\u00e1nico de CO2 frente a la isla de La Palma (Islas Canarias, Oc\u00e9ano Atl\u00e1ntico Nororiental), un lugar con un gradiente natural de pH que va de 7,0 a 8,2 a lo largo de los ciclos de marea. Se evaluaron la densidad y la distribuci\u00f3n de la frecuencia del tama\u00f1o, la morfolog\u00eda de la concha, la integridad de la concha, la resistencia a la fractura y la tolerancia a la desecaci\u00f3n entre poblaciones de los sitios de surgencias de CO2 y de control. No se encontraron efectos de la reducci\u00f3n del pH en los par\u00e1metros de la poblaci\u00f3n o en los par\u00e1metros de la poblaci\u00f3n o en la tolerancia a la desecaci\u00f3n a lo largo del gradiente de pH, pero se detectaron diferencias significativas en la morfolog\u00eda de la concha, la integridad de la concha y la resistencia a la fractura. resistencia a la fractura. Los individuos de la zona de las surgencias de CO2 mostraron una mayor relaci\u00f3n de aspecto de la concha, mayores de disoluci\u00f3n y rotura de la concha, y una resistencia de la concha comprometida que los del sitio de control. Nuestros resultados ponen de manifiesto que la exposici\u00f3n a largo plazo a un alto nivel de pCO2 puede afectar negativamente a las caracter\u00edsticas del caparaz\u00f3n de P. sauciatus, pero puede no tener un efecto significativo en el rendimiento de la poblaci\u00f3n. Adem\u00e1s, sugerimos que la p\u00e9rdida de las propiedades del caparaz\u00f3n podr\u00eda provocar cambios en las interacciones entre depredadores y presas.<\/p>\n[\/et_pb_text][et_pb_button button_url=\u00bbhttps:\/\/wp.ull.es\/omacc\/wp-content\/uploads\/sites\/110\/2022\/04\/Viotti-et-al.-2019.MERE_phorcus.pdf\u00bb url_new_window=\u00bbon\u00bb button_text=\u00bbDescargar pdf\u00bb _builder_version=\u00bb4.9.7″ _module_preset=\u00bbdefault\u00bb custom_button=\u00bbon\u00bb button_text_size=\u00bb13px\u00bb button_bg_color=\u00bb#0C997F\u00bb][\/et_pb_button][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=\u00bb2_5,3_5″ _builder_version=\u00bb4.9.7″ _module_preset=\u00bbdefault\u00bb][et_pb_column type=\u00bb2_5″ _builder_version=\u00bb4.9.7″ _module_preset=\u00bbdefault\u00bb][\/et_pb_column][et_pb_column type=\u00bb3_5″ _builder_version=\u00bb4.9.7″ _module_preset=\u00bbdefault\u00bb][et_pb_toggle title=\u00bbEnglish\u00bb open_toggle_text_color=\u00bb#0C997F\u00bb open_toggle_background_color=\u00bb#FFFFFF\u00bb closed_toggle_text_color=\u00bb#0C997F\u00bb closed_toggle_background_color=\u00bb#FFFFFF\u00bb icon_color=\u00bb#0C997F\u00bb _builder_version=\u00bb4.9.7″ _module_preset=\u00bbdefault\u00bb title_font=\u00bb|||on|||||\u00bb closed_title_font=\u00bb|||on|||||\u00bb closed_title_font_size=\u00bb14px\u00bb closed_title_line_height=\u00bb1.5em\u00bb custom_padding=\u00bb7px||7px||true|false\u00bb border_color_all=\u00bb#0C997F\u00bb]\n

Volcanic CO2 vents are useful environments for investigating the biological responses of marine organisms to changing ocean conditions (Ocean acidification, OA). Marine shelled molluscs are highly sensitive to changes in seawater carbonate chemistry. In this study, we investigated the effects of reduced pH on the intertidal gastropod, Phorcus sauciatus, in a volcanic CO2 vent off La Palma Island (Canary Islands, North East Atlantic Ocean), a location with a natural pH gradient ranging from 7.0 to 8.2 over the tidal cycles. Density and size-frequency distribution, shell morphology, shell integrity, fracture resistance, and desiccation tolerance were evaluated between populations from control and CO2 vent sites. We found no effects of reduced pH on population parameters or desiccation tolerance across the pH gradient, but significant differences in shell morphology, shell integrity, and fracture resistance were detected. Individuals from the CO2 vent site exhibited a higher shell aspect ratio, greater percentages of shell dissolution and break, and compromised shell strength than those from the control site. Our results highlight that long-term exposure to high pCO2 can negatively affect the shell features of P. sauciatus but may not have a significant effect on population performance. Moreover, we suggest that loss of shell properties could lead to changes in predator-prey interactions.<\/p>\n[\/et_pb_toggle][\/et_pb_column][\/et_pb_row][\/et_pb_section]\n","protected":false},"excerpt":{"rendered":"

[et_pb_section fb_built=\u00bb1″ _builder_version=\u00bb4.9.7″ _module_preset=\u00bbdefault\u00bb][et_pb_row _builder_version=\u00bb4.9.7″ _module_preset=\u00bbdefault\u00bb][et_pb_column type=\u00bb4_4″ _builder_version=\u00bb4.9.7″ _module_preset=\u00bbdefault\u00bb][et_pb_text _builder_version=\u00bb4.9.7″ _module_preset=\u00bbdefault\u00bb header_2_font=\u00bb|700|||||||\u00bb] Effects of long-term exposure to reduced pH conditions on the shell and survival of an intertidal gastropod [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=\u00bb2_5,3_5″ _builder_version=\u00bb4.9.7″ _module_preset=\u00bbdefault\u00bb][et_pb_column type=\u00bb2_5″ _builder_version=\u00bb4.9.7″ _module_preset=\u00bbdefault\u00bb][et_pb_image src=\u00bbhttps:\/\/wp.ull.es\/omacc\/wp-content\/uploads\/sites\/110\/2022\/04\/2019-Viotti-et-al.MER_.jpeg\u00bb title_text=\u00bb2019-Viotti et al.,MER\u00bb _builder_version=\u00bb4.9.7″ _module_preset=\u00bbdefault\u00bb border_width_all=\u00bb2px\u00bb border_color_all=\u00bb#0C997F\u00bb][\/et_pb_image][\/et_pb_column][et_pb_column type=\u00bb3_5″ _builder_version=\u00bb4.9.7″ _module_preset=\u00bbdefault\u00bb][et_pb_text _builder_version=\u00bb4.9.7″ _module_preset=\u00bbdefault\u00bb] 2019. VIOTTI, S., C. SANGIL, C.A. […]<\/p>\n","protected":false},"author":268,"featured_media":486,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","ngg_post_thumbnail":0,"footnotes":""},"project_category":[10],"project_tag":[],"class_list":["post-1520","project","type-project","status-publish","has-post-thumbnail","hentry","project_category-recientes"],"_links":{"self":[{"href":"https:\/\/wp.ull.es\/omacc\/wp-json\/wp\/v2\/project\/1520","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wp.ull.es\/omacc\/wp-json\/wp\/v2\/project"}],"about":[{"href":"https:\/\/wp.ull.es\/omacc\/wp-json\/wp\/v2\/types\/project"}],"author":[{"embeddable":true,"href":"https:\/\/wp.ull.es\/omacc\/wp-json\/wp\/v2\/users\/268"}],"replies":[{"embeddable":true,"href":"https:\/\/wp.ull.es\/omacc\/wp-json\/wp\/v2\/comments?post=1520"}],"version-history":[{"count":3,"href":"https:\/\/wp.ull.es\/omacc\/wp-json\/wp\/v2\/project\/1520\/revisions"}],"predecessor-version":[{"id":1576,"href":"https:\/\/wp.ull.es\/omacc\/wp-json\/wp\/v2\/project\/1520\/revisions\/1576"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/wp.ull.es\/omacc\/wp-json\/wp\/v2\/media\/486"}],"wp:attachment":[{"href":"https:\/\/wp.ull.es\/omacc\/wp-json\/wp\/v2\/media?parent=1520"}],"wp:term":[{"taxonomy":"project_category","embeddable":true,"href":"https:\/\/wp.ull.es\/omacc\/wp-json\/wp\/v2\/project_category?post=1520"},{"taxonomy":"project_tag","embeddable":true,"href":"https:\/\/wp.ull.es\/omacc\/wp-json\/wp\/v2\/project_tag?post=1520"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}