{"id":1697,"date":"2026-02-02T10:00:00","date_gmt":"2026-02-02T10:00:00","guid":{"rendered":"https:\/\/wp.ull.es\/omacc\/?post_type=project&p=1697"},"modified":"2026-11-06T19:33:29","modified_gmt":"2026-11-06T19:33:29","slug":"carbon-concentration-mechanisms-in-canary-islands-macroalgae-and-their-implications-for-future-benthic-community-structure-under-ocean-acidification-hernandez-et-al-2026","status":"publish","type":"project","link":"https:\/\/wp.ull.es\/omacc\/project\/carbon-concentration-mechanisms-in-canary-islands-macroalgae-and-their-implications-for-future-benthic-community-structure-under-ocean-acidification-hernandez-et-al-2026\/","title":{"rendered":"Carbon concentration mechanisms in Canary Islands macroalgae and their implications for future benthic community structure under ocean acidification. Hern\u00e1ndez et al., 2026"},"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

Carbon concentration mechanisms in Canary Islands macroalgae and their implications for future benthic community structure under ocean acidification<\/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\/2026\/11\/Paper_webOMACC-2.png\u00bb title_text=\u00bb2026-Hernandez-CA-et-al-MER\u00bb alt=\u00bbPortada: Carbon concentration mechanisms in Canary Islands macroalgae and their implications for future benthic community structure under ocean acidification\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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2026. HERN\u00c1NDEZ, C. A., ALFONSO, B., P\u00c9REZ, C., & HERN\u00c1NDEZ, J. C. Carbon concentration mechanisms in Canary Islands macroalgae and their implications for future benthic community structure under ocean acidification. Marine Environmental Research, 216, 107898.<\/span><\/p>\n<\/blockquote>\n[\/et_pb_text][et_pb_text _builder_version=\u00bb4.9.7″ _module_preset=\u00bbdefault\u00bb]\n

En las \u00faltimas d\u00e9cadas, el aumento de la concentraci\u00f3n de CO2<\/sub> antropog\u00e9nico en la atm\u00f3sfera ha alterado gravemente la qu\u00edmica del agua de mar, dando lugar al fen\u00f3meno conocido como acidificaci\u00f3n oce\u00e1nica (AO). Del carbono inorg\u00e1nico disuelto (CID) presente en el agua de mar, solo el 1 % se encuentra en forma de CO2<\/sub>. Sin embargo, si contin\u00faan las emisiones de CO2<\/sub> antropog\u00e9nico a la atm\u00f3sfera, dejar\u00e1 de ser un recurso limitante. Parte de la respuesta de los organismos fotosint\u00e9ticos marinos a estos cambios depende de su fisiolog\u00eda del carbono. La presencia y la eficacia de los mecanismos de concentraci\u00f3n de carbono (MCC) pueden determinar la producci\u00f3n y el crecimiento de las macroalgas en condiciones de AO. Aunque los MCC no son imprescindibles cuando la concentraci\u00f3n de carbono inorg\u00e1nico en el agua es alta, las especies que no los utilizan pueden ver mejorado su rendimiento. Nuestro objetivo fue determinar la presencia o ausencia de MCC en 19 especies de macroalgas comunes en Canarias mediante un experimento de deriva de pH, y establecer sus tasas de producci\u00f3n primaria mediante incubaciones y medidas de la variaci\u00f3n de O2. Las muestras de cada especie se incubaron durante 8, 24 y 32 h en recipientes aislados, en condiciones controladas de luz y temperatura. De las 19 especies estudiadas, 11 presentaron MCC y 8 no. Cinco de las ocho especies sin MCC en este estudio est\u00e1n presentes en los afloramientos de CO2<\/sub> de Fuencaliente, y una de ellas, H. scoparia<\/em>, es una especie dominante.<\/p>\n[\/et_pb_text][et_pb_button button_url=\u00bbhttps:\/\/doi.org\/10.1016\/j.marenvres.2026.107898″ 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

In recent decades, due to the anthropogenic CO2<\/sub> concentration increase in the atmosphere, the chemistry of seawater has been seriously altered, producing the phenomenon known as Ocean Acidification (OA). Of all the dissolved inorganic carbon (DIC) present in seawater, only 1% is in the form of CO2<\/sub>. However, if anthropogenic CO2<\/sub> emissions to the atmosphere continue, it will no longer be a limiting resource. Part of the response of marine photosynthetic organisms to these changes depends on their carbon physiology. The presence and effectiveness of carbon concentration mechanisms (CCM) can define the production and growth of macroalgae under OA conditions. Although CCMs are not essential when the seawater concentration of inorganic carbon is high, species that do not use them can see their performance improved. Our goal was to determine the presence or absence of CCMs in a total of 19 species of common macroalgae in the Canary Islands through a pH drift experiment and to establish their primary production rates through incubations and measurements of the O2<\/sub> variation. Samples of each species were incubated during 8, 24 and 32 h in isolated containers and under controlled lighting and temperature conditions. Of the 19 species studied, 11 presented CCM and 8 did not present CCM. Five of the eight species that did not show the presence of CCMs in the present study are present in the CO2<\/sub> seeps of Fuencaliente and one of them, H. scoparia<\/em> is a dominant species.<\/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] Carbon concentration mechanisms in Canary Islands macroalgae and their implications for future benthic community structure under ocean acidification [\/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\/2026\/11\/Paper_webOMACC-2.png\u00bb title_text=\u00bb2026-Hernandez-CA-et-al-MER\u00bb alt=\u00bbPortada: Carbon concentration mechanisms in Canary Islands macroalgae and their implications for future benthic community structure 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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] Carbon concentration mechanisms in Canary Islands macroalgae and their implications for future benthic community structure under ocean acidification [\/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\/2026\/11\/Paper_webOMACC-2.png\u00bb title_text=\u00bb2026-Hernandez-CA-et-al-MER\u00bb alt=\u00bbPortada: Carbon concentration mechanisms in Canary 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