Copepod performance under CO2-induced acidification: the case of Acartia grani and Oithona davisae

• Main Authors: Isari, Stamatina, Zervoudaki, Soultana, Saiz, Enric, Pelejero, Carles
• Other Authors: European Commission, Greek Government
• Format: Conference Object
• Language: unknown
• Published: Hellenic Centre for Marine Research 2015
• Subjects: Marine copepods; Ocean acidification; Reproduction; Feeding; Respiration; Copepods
• Online Access: http://hdl.handle.net/10261/141021; https://doi.org/10.13039/501100000780

11th Panhellenic Symposium on Oceanography and Fisheries, Aquatic Horizons : Challenges & Perspectives, 13-17 May 2015, Mytilene, Lesvos island, Greece.-- 11ο Πανελλήνιο Συμπόσιο Ωκεανογραφίας & Αλιείας, Μυτιλήνη, Λέσβος, Ελλάδα.-- 4 pages This experimental study aimed to evaluate the direct impact of two distinct pH levels, one “Control” (pHNBS: 8.17) and one “Low pH” (pHNBS: 7.75) on the feeding, respiration and reproductive output of two marine copepods: the calanoid Acartia graniand the cyclopoid Oithonadavisae. Adult copepods collected from laboratory cultures were preconditioned for 4 consecutive days at a dinoflagellate suspension (Akashiwo sanguinea) prepared with filtered sea water preadjusted at the targeted pH values via CO2 bubbling. Water acidification had no direct effect on the examined vital rates for any of the two copepod species. Our results lend support to the generally observed lack of direct influence of the seawater pH decrease projected at the end of the century on the group of copepods This work was supported by the project CROA (LS8-1893), implemented within the framework of the «Supporting Postdoctoral Researchers» Action of the >Education and Lifelong Learning> Operational Program (Action’s Beneficiary: General Secretariat for Research and Technology), and was cofinanced by the European Social Fund (ESF) and the Greek State Peer Reviewed