1 keep thinking, what is the source of the food for all of this added 



2 biomass? Something has got to be going on there. We have not 



3 quantified either of those. 



4 DR. BOTHNER: Shall we say "materials" instead of "contaminants?" 



5 DR. KRAEUTER: I do not want to--what is the background for the 



6 things we are trying to do? I mean, you might have a flux of something 



7 if it was coming from a well and you would call it a contaminant, but if 



8 it was coming from a biological concentration mechanism you might not 



9 call it a contaminant. I don't know. 



10 I would rather use "material" but I do not want to lose sight of 



11 the fact that we really are after the contaminants. 



12 DR. GRASSLE: "Contaminants are likely to be associated with 



13 particles." Then it should be "Particulate flux and accumulation of 



14 sediments--the rate of particulate flux and accumulation of sediments is 



15 poorly known." Then the sentence that you had, Mike-- 



16 DR. BOTHNER: Let me try something else, just for fun, to see if I 



17 can get around this one. Leave the first part alone. 



18 "Data on the rates of sediment accumulation and the flux of 



19 contaminants potentially associated with those sediments, is needed." 



20 Do you like that? Is that--we sort of step out of the-- 



21 DR. KRAEUTER: Suppose the contaminants are not associated with 



22 those sediments? 



23 DR. BOTHNER: Well, we are really talking about contaminants that 



24 are associated with sediments. That is really the thing. 



25 DR. KRAEUTER: Our fecal pellet sediments? 



26 DR. BOTHNER: Sure. 



27 DR. GRASSLE: My problem with it, Mike, is a slightly different 



28 one. That is that particle flux includes more than just accumulation on 



29 the bottom. 



30 DR. BOTHNER: It does. 



31 DR. GRASSLE: It is really that that is a concern for biology. I 



32 want to try to get in the whole problem--that we do not know anything 



33 about sediment dynamics and particle flux in these areas. 



34 DR. BOTHNER: How about "data on particle dynamics?" 



421 



