Distribution of sea urchins living near shallow water CO2 vents is dependent upon species acid-base and ion-regulatory abilities

MARINE POLLUTION BULLETIN

卷:73

Article

Calosi, P.¹  Rastrick, S. P. S.¹  Graziano, M.^2,3  Thomas, S. C.¹  Baggini, C.¹  Carter, H. A.⁴  Hall-Spencer, J. M.¹  Milazzo, M.³  Spicer, J. I.¹ 

[1] Univ Plymouth, Marine Biol & Ecol Res Ctr, Sch Marine Sci & Engn, Plymouth PL4 8AA, Devon, England

[2] UNICAL Polifunz, CNR Inst Atmospher Pollut Res, I-87036 Arcavacata Di Rende, Italy

[3] Univ Palermo, Dipartimento Sci Terra & Mare, CoNISMa, I-90123 Palermo, Italy

[4] San Francisco State Univ, Romberg Tiburon Ctr Environm Studies, Tiburon, CA 94920 USA

关键词: Carbon capture and storage (CCS);    Ocean acidification;    Arbacia lixula;    Paracentrotus lividus;    Acid-base and ionic regulation;    Distribution;   

DOI  :  10.1016/j.marpolbul.2012.11.040

来源: Elsevier

【 摘 要 】

To reduce the negative effect of climate change on Biodiversity, the use of geological CO2 sequestration has been proposed; however leakage from underwater storages may represent a risk to marine life. As extracellular homeostasis is important in determining species' ability to cope with elevated CO2, we investigated the acid-base and ion regulatory responses, as well as the density, of sea urchins living around CO2 vents at Vulcano, Italy. We conducted in situ transplantation and field-based laboratory exposures to different pCO(2)/pH regimes. Our results confirm that sea urchins have some ability to regulate their extracellular fluid under elevated pCO(2). Furthermore, we show that even in closely-related taxa divergent physiological capabilities underlie differences in taxa distribution around the CO2 vent. It is concluded that species distribution under the sort of elevated CO2 conditions occurring with leakages from geological storages and future ocean acidification scenarios, may partly be determined by quite subtle physiological differentiation. Crown Copyright (C) 2012 Published by Elsevier Ltd. All rights reserved.

【 授权许可】

Free