1 In this study we are finding that the barium, over 97 percent of 



2 it in the case of the clams, is located in this granular fraction of the 



3 cells and they think that primarily this is dealing with material that 



4 is remaining in the gut and the indication that I've been getting from 



5 research, they think that this represents most of the barium that they 



6 seem to be seeing is still in soluble form. 



7 In the soluble fractions down here there is very little barium 



8 present. In the case of pectinaria, the same thing again, in a granular 



9 pellet, over 90 percent of the barium is located there, a little bit in 



10 the nuclear fraction, very little in the soluble fraction. In the case 



11 of the nepthys species, they were seeing no elevation in the barium. 



12 I have some of the other biological results from this, but let me 



13 jump past them and just hit quickly some of the other metals information 



14 and patterns that we've found and then if we get time I'll come back to 



15 the biological. Or, I can do like the other speaker did and I'll talk 



16 the extra 5 minutes and we can discuss it during the break. 



17 This particular study was done off the coast of Texas, down off 



18 the San Antonio Bay, Matagorda Island, 622, this is about 12 miles off 



19 shore. This is the development location, the six development wells, 



20 four exploratories. 



21 There is a variety of data, most of these studies were taken doing 



22 grain-size distribution, total organic carbons, in this case calcium 



23 carbonate was one of the measurements, trace metals, aliphatic and 



24 aromatic hydrocarbons, and this was a study to look in changes of 



25 macrofaunal assemblages, both juvenile and adults as it relates to these 



26 other parameters. 



27 This is just along one transect. Here you see the barium in parts 



28 per million. In the near-field stations, 10 meters out to about 75 



29 meters, it spikes up to around 20,000 ppm. Normally right near a rig 



30 you'll see as high 40,000 or 50,000 ppm in some locations with the 



31 gradient dropping off. 



32 Cadmium, which is supposed to ppb, not ppm, same thing. In near- 



33 field here the spike up to around 600 ppb, a quick drop off by 75 meters 



34 in a trend like this. The same thing with chromium, the iron in 



52 



