Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Numbers of the main components of the biofouling community on precolonized HDPE pipe before and after exposure to either pH 7.9 (control) of pH 7.7 (predicted year 2100 level). Values are mean per 10 cm2 ± SE; significant differences shown in figure as: *P < 0.01, **P < 0.001, ***P < 0.0001.
