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Effects of elevated pCO2 on reproductive properties of the benthic copepod Tigriopus japonicus and gastropod Babylonia japonica |
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| Authors: | Jun Kita Takashi Kikkawa Takamasa Asai Atsushi Ishimatsu |
| Institution: | 1. Demonstration Laboratory, Marine Ecology Research Institute, Arahama 4-7-17, Kashiwazaki-shi, Niigata 945-0077, Japan;2. Central Laboratory, Marine Ecology Research Institute, Iwawada 300, Onjuku-machi, Isumi-gun, Chiba 299-5105, Japan;3. Institute for East China Sea Research, Nagasaki University, Taira-machi 1551-7, Nagasaki 851-2213, Japan |
| Abstract: | We investigated the effects of elevated pCO2 in seawater both on the acute mortality and the reproductive properties of the benthic copepod Tigriopus japonicus and gastropod Babylonia japonica with the purpose of accumulating basic data for assessing potential environmental impacts of sub-sea geological storage of anthropogenic CO2 in Japan. Acute tests showed that nauplii of T. japonicus have a high tolerance to elevated pCO2 environments. Full life cycle tests on T. japonicus indicated NOEC = 5800 μatm and LOEC = 37,000 μatm. Adult B. japonica showed remarkable resistance to elevated pCO2 in the acute tests. Embryonic development of B. japonica showed a NOEC = 1500 μatm and LOEC = 5400 μatm. T. japonicus showed high resistance to elevated pCO2 throughout the life cycle and B. japonica are rather sensitive during the veliger stage when they started to form their shells. |
| Keywords: | CCS Elevated pCO2 Tigriopus japonicus Babylonia japonica Risk assessment Ocean acidification |
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