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Because we wanted to compare the marsh at lie Grande with other
marshes in the vicinity, we also visited the marsh in the estuary at
Kerlavos ca . 5 km from lie Grande (Fig. 2). This marsh contained less
Juncus , no Spartina , and was dominated by Puccinellia maritima,
Armeria maritima (Mill.) Willd. , and Triglochin maritima along with
Plantago maritima L. , Cochleria officinalis L. , Halimione portulacoides
and Aster tripolium L. There was evidence of marsh removal by cleanup
operations in the Kerlavos marsh also, but it appeared that the marsh
was much less heavily impacted than that at lie Grande. We chose to
use this marsh area as a supplemental study site.
FIGURE 2. Marsh in estuary at Kerlavos. Areas without
Substrate
vegetation represent sites of marsh removal during
Amoco Cadiz oil cleanup operations.
PROCEDURE
Substrate samples were taken at the transplant source sites for
each species and also at the experimental planting sites each year.
These samples were analyzed for elemental concentrations, pH, organic
matter, and volume weight by the North Carolina Department of
Agriculture Soil Testing Division using their routine methods.
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