225 



You could set on a school you think is all spotters and if it is a 

 fairly large school, come up with 100 spinners mixed in that you 

 never saw. 



Mr. Leggett. The testimony given is that if a school did not look 

 like spinners and you set on them, what you do is take care to get all 

 the porpoise out. 



Mr. Medina. Well, the best way to get them out is to back them out, 

 the way we normally would do. 



Mr. Leggett. Very carefully. 



Of course, you are very careful? 



Mr. Medina. Yes. 



I will be glad to answer any questions you might have. 



Mr. Leggett. If there are certain of these schools that are, say, not 

 mixed, like good hunting porpoise, it might make sense to equip some 

 of them with a radio transmitter and follow them and then, say, if 

 we had a particular tuna boat crew or boat that had particular ex- 

 pertise, that had very low incidence and in taking porpoise per 

 ton 



Mr. Medina. Could I answer that? 



Mr. Leggett. Then give him a special permit to use the transmitter 

 and kind of see what they do. 



Mr. Medina. The only problem there is that they disband at night, 

 they feeed, and in the morning they come back together. 



Sometimes a school can change. 



It can pick up spinners during the night and pick up spotters. I 

 have seen schools that we have followed there that have increased in 

 the night, have gotten smaller the next day, having changed from 

 maybe half and half to maybe three-quarters to a quarter. 



That would be hard to do. It is fine to follow the school, but it still 

 does not mean it is going to be all spotters the next day. 



Mr. Leggett. Everybody is threshing around for solutions but ap- 

 parentlv none are readily at hand. 



That is helpful. 



You want Frank to talk now? 



Mr. Felando. I would like to have Frank explain these three 

 charts. 



You see a dark heavy line 



Mr. Leggett. Which are the charts? 



Mr. Felando. The three different charts. One is entitled Expanded 

 Geographical Distribution of Spotted Dolphin. 



Mr. Leggett. Where did this chart come from? 



It seems to be the same chart Mr. Butler was talking about. 



Mr. Felando. I will have Dr. Alverson explain the charts for 

 you. There are two charts dealing with spinner porpoise, one on the 

 white belly and one on the eastern spinner. 



The heavy dark line represents the original area described by the 

 National Marine Fishery Service. 



Then you will see dots and squares or circles outside of that area. 

 That will represent the information that is being developed indicat- 

 ing the new sightings, the expanded area of the distribution of the 

 animals involved. 



Frank, can you take over? 



