Journal of Tropical Oceanography >
Effects of growth of Skeletonema costatum and Phaeodactylum tricornutum on me-
dium pH in different initial inorganic nitrogen concentrations
Received date: 2010-03-11
Revised date: 2010-05-07
Online published: 2011-07-20
Ocean acidification is a threatening environmental problem. A change of ocean pH is affected by the amount of
inorganic carbon that is absorbed by algae. Skeletonema costatum and Phaeodactylum tricornutum were grown in batch culture
to study the effects of different inorganic nitrogen concentrations on the change in pH. The results showed that the concentra-
tion of chlorophyll a and final pH of the two algae’s media increased with the medium N concentration from 10 to
200µmol·L−1. A significant linear relationship was observed between the change of pH and the consumption of inorganic N and
a linear significant relationship was also found between the change of pH and the consumption of inorganic carbon.
GOU Bin,GAO Yong-li,YIN Ke-dong,CAI Wei-jun
. Effects of growth of Skeletonema costatum and Phaeodactylum tricornutum on me-
dium pH in different initial inorganic nitrogen concentrations[J]. Journal of Tropical Oceanography, 2011
, 30(3)
: 82
-87
.
DOI: 10.11978/j.issn.1009-5470.2011.03.082
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