1 DR. TEAL: We are getting to the point of 200 parts per thousand, 



2 so if you put it up into an area of 10,000 times, it would be the same 



3 relative concentration and now we are talking about the whole canyon. 



4 We are talking about larvae, but sediment, putting all the 



5 sediments into the--what I'm talking about, anyway, is putting all the 



6 sediments out into the canyon and trying to decide whether that could 



7 have an effect on the larval perception. 



8 It seems to me that another way of approaching it would be to 



9 don't let any of it accumulate. 



10 DR. HECKER: But if it all ends up in the depositional part of the 



11 canyon, it converges-- 



12 DR. TEAL: How big is the depositional part of the canyon? That's 



13 the question now. 



14 DR. HECKER: Mike can tell us. You told me all about that hole 



15 there, the silt hole in the axis that had all those sea pens in it. 



16 DR. BOTHNER: Barbara, you remember the stuff from 5 years ago so 



17 well. 



18 DR. HECKER: There is a cliff at the landward edge of it, okay? 



19 We came down that cliff and then you've got that very fine material. 



20 How big is it? How wide was the canyon? What sort of area are we 



21 talking about? 



22 DR. BOTHNER: Was this the morning dive or the afternoon dive? 



23 DR. HECKER: It was dive 1037, dear. 



24 DR. BOTHNER: I don't remember that. The answer to that is to 



25 just look at a topographic map. From the dive description, I couldn't 

 25 tell you. 



27 DR. HECKER: You've got the depositional area of the very fine- 



28 grained sediment in the axis, say, from 300 to 450 meters? Do you 



29 remember the grain size? 



30 DR. BOTHNER: I remember mostly from Brad's chart yesterday that 



31 showed this. 



32 DR. HECKER: Approximately how large an area are we talking about, 



33 Brad? 



303 



