Pore Water Peepers in tank of DI water
before deployment:
Slits in coverplate at 1-2 cm intervals
expose underlying chambers (covered by 0.2 micron membrane) to DI water
in tank. The tank is bubbled under N2 gas to remove oxygen before
inserting the peepers into the saltmarsh sediment. The DI water in the chambers
will be allowed to equilibrate with the surounding sediment pore waters for
approximately 4 weeks.
Peeper Removal:
After removal, peeper is transported
to field laboratory in portable N2-filled glvoebag to avoid reoxidation
of reduced chemical species in pore waters:
Pore waters are then extracted by
puncturing glovebag and membrane covering each chamber using a syringe,
and withdrawing fluid:
