해수 중 이산화탄소의 증가가 감성돔( Acanthopagrus schlegelii)의초기성장에 미치는 영향
The Effects of Elevated Carbon Dioxide in Seawater on the Early Life Stages of Black Sea Bream Acanthopagrus schlegelii
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Since the industrial revolution, seawater has increased in temperature and acidity due to the increase in anthropogenic carbon dioxide in the atmosphere. To understand the effect of elevated CO2 on the early life stages of fish, we reared fertilized eggs of black sea bream Acanthopagrus schlegelii under three CO2 concentrations (400, 850 and 1550 ppm) for 3 weeks. The standard length and wet weight of black sea bream larvae declined with enhanced CO2 concentration in the rearing water (P<0.05). However, chemical analysis using ICP-OES on internal tissues of black sea bream larvae indicated that the whole-body calcium concentration increased with CO2 concentration in the rearing water. These conflicting results suggest that future experiments should examine the acid-base balance to investigate the formation of bone and otolith during larval growth.
Abstract
Since the industrial revolution, seawater has increased in temperature and acidity due to the increase in anthropogenic carbon dioxide in the atmosphere. To understand the effect of elevated CO2 on the early life stages of fish, we reared fertilized eggs of black sea bream Acanthopagrus schlegelii under three CO2 concentrations (400, 850 and 1550 ppm) for 3 weeks. The standard length and wet weight of black sea bream larvae declined with enhanced CO2 concentration in the rearing water (P<0.05). However, chemical analysis using ICP-OES on internal tissues of black sea bream larvae indicated that the whole-body calcium concentration increased with CO2 concentration in the rearing water. These conflicting results suggest that future experiments should examine the acid-base balance to investigate the formation of bone and otolith during larval growth.
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