1 communities in the canyon and on the adjacent slope are very, very 



2 similar at this particular depth. 



3 Also, the total density per meters square is fairly similar 



4 amongst the three. It's just slightly higher in the canyon, but I don't 



5 believe that's significantly different from what we saw in the slope. 



6 DR. BOTHNER: Nancy, are those station number 8, 5 and 6 by 



7 chance? 



8 DR. MACIOLEK: Yes, station 8 and I don't remember which is which, 



9 I think this is 6 and this is 5. 



10 The diversity, here we see that the canyon station has the highest 



11 diversity in terms of the Shannon Index. Again, looking at the 



12 rarefaction curves, we see the same thing. Station 8 is the canyon 



13 station and, in fact, all of the other stations on this particular graph 



14 are at 2,100 meters. 



15 They range from station 2, which was at the U.S. -Canadian 



16 boundary, to 5 and 6, which were just outside Lydonia Canyon, and 14 and 



17 15 which were along the transect line, the line that was established by 



18 the DOE study. 



19 So, you can see here that the canyon station is more diverse than 



20 any of the 2,100 meter stations sampled in the program. 



21 In terms of similarity, this clustergram shows all of the stations 



22 sampled in the North Atlantic Deep Water Program. Over here on the left 



23 are, again, the 550 meter stations, showing that station 7 in the canyon 



24 is very dissimilar, it doesn't cluster with our canyon station, except 



25 at a very low level . 



26 Over here, this group, are all of the 2,100 meter stations. 



27 Station 8 is represented by this line. It is most similar, as it turns 



28 out to those stations that were on the SEEP transect line, but the level 



29 at which it picks up and joins with the Lydonia slope stations is 



30 greater than a .8 NESS level of similarity, which says to us, in fact, 



31 all of those stations are very highly similar to each other. 



32 So, just to summarize those results then, at 150 meters and 550 



33 meters depth, we see some major differences in terms of the community 



124 



