Effects of co2-related acidification on aspects of the larval development of the European lobster, Homarus gammarus (l

• Main Authors: K. E. Arnold, H. S. Findlay, J. I. Spicer, C. L. Daniels, D. Boothroyd
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Published: 2006
• Subjects: European lobster; Homarus gammarus; Ocean acidification
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.598.9294; http://www.biogeosciences.net/6/1747/2009/bg-6-1747-2009.pdf

Abstract. Oceanic uptake of anthropogenic CO2 results in a reduction in pH termed “Ocean Acidification ” (OA). Com-paratively little attention has been given to the effect of OA on the early life history stages of marine animals. Conse-quently, we investigated the effect of culture in CO2-acidified sea water (approx. 1200 ppm, i.e. average values predicted using IPCC 2007 A1F1 emissions scenarios for year 2100) on early larval stages of an economically important crus-tacean, the European lobster Homarus gammarus. Culture in CO2-acidified sea water did not significantly affect carapace length of H. gammarus. However, there was a reduction in carapace mass during the final stage of larval development in CO2-acidified sea water. This co-occurred with a reduction in exoskeletal mineral (calcium and magnesium) content of the carapace. As the control and high CO2 treatments were