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.
The independent effect of (a) the length of exposure (time point (months)) on the mean maximum bioturbation depth (cm, mean ± s.e.) and (b) the interactive effects of time point (months) × [CO2] (ppm) on bioirrigation activity (Δ[Br−], mg l−1, mean ± s.e.), with [CO2] indicated by: open circles = 380 ppm, grey closed circles = 750 ppm and black closed circles = 1000 ppm, for A. virens.
