In September, we made 9 additional plantings of Juncus maritimus , 

 Puccinellia maritima, and Spartina maritima and established initial 

 plantings of another species, Triglochin maritima (Figs. 12, 13). 

 Although not recognized as such on our initial visits to the site, the 

 latter species appears to be a common pioneer species on disturbed 

 sites alone or with Puccinellia maritima . Both Puccinellia and 

 Triglochin appear to invade by seed. 



Height, number of stems, cover (a measure of spread) and 

 aboveground dry weight per transplant were determined in September 

 1979, 4 months after planting. Cover determinations were made by 

 measuring the average maximal diameter and the average minimal diameter 

 of the transplant and using these dimensions in the formula for the 

 area of an ellipse. Percent survival by transplant type and species 

 was also assessed at this time and at each subsequent visit. Because 

 our major objective was to establish vegetation, destructive sampling 

 for biomass determinations was held to a minimum of three samples per 

 treatment per location. A photographic record of all plantings was 

 initiated. 



1980 Plantings 



Based on results of our 1979 plantings, we established 14 

 additional plantings at higher elevations in May 1980 utilizing plugs 

 of Puccinellia , Juncus , Spartina , and Triglochin and sprigs of 

 Halimione (Figs. 14, 15). Remains of stems and intact root systems of 

 Halimione indicated that this species was the dominant along the creek 

 banks prior to the Amoco Cadiz oil (Fig. 16). Consequently, we began 

 preliminary tests of reestablishing this species along the creek banks 

 (Fig. 17) and included it in an experiment to determine the feasibility 

 of nursery production for transplants. Like the earlier plantings, 

 these 1980 plantings were designed to determine transplant response to 

 fertilizer materials at different rates over a range of substrate and 

 exposure conditions. Cover was determined for selected plantings. All 

 experimental plantings were surveyed to determine relative elevations, 

 i.e. relative to the natural marshes (Fig. 18). 



In September we made 8 additional plantings using primarily 

 Puccinellia and Halimione with some Spartina . Based on results from 

 our earlier plantings, further planting of Triglochin seemed 

 impractical. As in September 1979, all earlier plantings were assessed 

 for survival, height and cover with sampling for dry weight 

 determinations limited to only two plantings. Photographic 

 surveillance was considered even more important because we did not 

 conduct intensive destructive sampling. 



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