首页 | 本学科首页   官方微博 | 高级检索  
     检索      


Effect of carbon dioxide concentration on calcification in the red coralline alga Bossiella orbigniana
Authors:A D Smith  A A Roth
Institution:(1) Department of Biology, Loma Linda University, Loma Linda, California, USA
Abstract:The relationship between various experimental concentrations of CO2 and calcification in Bossiella orbigniana (Decaisne) was studied by measuring Ca-45 incorporation into the crystalline matrix. Air containing CO2 at partial pressures (PCO 2) of 0.04 to 5.5% was bubbled through synthetic seawater in incubation vessels. The resultant pH values in the presence of plants ranged from 6.5 to 8.7. The maximum calcification rate appears to lie between 0.11 and 1.05% PCO 2. The data suggest that calcification is controlled by a biological process that may be sensitive to pH and/or to the relative bicarbonate concentration. The data also suggest that a severalfold increase in CO2 over the present atmospheric level might lead to increased calcification in this marine alga.
Keywords:
本文献已被 SpringerLink 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号