1 DR. BOTHNER: Is there chromium data on that, in that list, I 



2 ■ didn't hear? 



3 DR. RAY: No, it is in the next one here. Here is nickel, 



4 chromium, and mercury. It is very interesting, with both the nickel and 



5 the chromium, there is a trend towards increase with distance. There 



6 was nothing in the rest of the data with grain size and the other metals 



7 that indicated that it was related to the drilling. 



8 They are not really sure why they were seeing this general trend 



9 with distance. We are seeing it in the pre- and post-drilling here 



10 downstream, but we're also seeing it in the pre- and post-drilling 



11 upstream. 



12 So, there seemed to be some kind of a change in the area, we're 



13 talking over years period of time here, a general increase in the area. 



14 We've seen this in some other areas, too, we saw some of this kind of a 



15 general change in the patterns of the area in the Alabama work. 



16 In this particular study, they ended up working with three 



17 different species cyclocardia, which is a clam, pectinaria, the ice 



18 cream cone polychaete, and two species of nepthys, which are also 



19 polychaetes. 



20 These are more burrowing deep-feeding polychaetes. This is a 



21 surface feeder, this is a surface, filter-type feeding organism. There 



22 was really three different feeding strategies involved with these three 



23 species, so they were interesting to look at, and some of the results 



24 seemed to bear out their feeding types. 



25 Just to show you the kinds of information we've got, there is a 



26 homogenization and fractionation of the tissue material from the 



27 organisms, and actually fractionated them into different fractions, 



28 granular, nuclear, mitochondrial fractions, microsomal and then the 



29 soluble fractions, high molecular weight and metal ithine [phonetic] and 



30 low-molecular-weight fractions. 



31 With each of the metals trying to see where in the cell they 



32 tended to go. Probably one of the questions that has been the most 



33 predominant in people's minds is that we have seen total body burdens of 



34 barium increasing in organisms that have been on high-barium substrates. 



51 



