Only one skipjack (5 pounds) survived the trip from the fishing 

 grounds to shoreo This fish fell from the hook when landed, and was 

 placed immediately in the livewello 



Frigate mackerel 



Of these small fishj 6 out of 22 were successfully transported 

 to shoreo Their behavior on deck and in the livewell was very similar 

 to that of the skipjackj excepting that profuse bleeding at the gills 

 did not take placeo This,, together with the greater swimming room 

 which resulted from their smaller size,, doubtless accounted for the 

 greater success as compared with skipjacko However ^ those which survived 

 the trip were frequently braised and battered on arrivalo 



Tunny 



The catch comprised two groups, large fish ranging from 4 to 

 15 poundSp which were caught early in the season^ and small fish ranging 

 from 1 to 3 pounds j which were caught later in the seasono The large 

 fish were damaged frequently in attempting to remove the hooko Of the 

 36 caught^ 9 (4 to 7 pounds) were brought back alive and in fair condi= 

 tiono The small fishp on the other hand^, were usually hooked lightly 

 and could be transferred quickly to the livewell. Of the 28 small fish 

 caught, 23 (l to 3 pounds) were successfully transported to shoreo 

 During the trip they became lighter in colore Frequently; marks caused 

 by handling showed up as dark blotches against the light backgrounds 

 These marks, caused by disturbance of the epithelial covering of the 

 scales, disappeared after 1 or 2 days in captivityo 



In the livewell, the tunny swam somewhat more slowly than 

 either the skipjack or the frigate mackerel, the large fish travelling 

 at about 4 and the small fish at about 3 feet per secondo As might be 

 expected, swimming speed gradually decreased with time, as the fish 

 became accustomed to the livewello Occasionally, the large fish would 

 hump the sides of the wall; the small ones seemed able to keep clearo 

 When both large and small fish were present, they tended to swim as a 

 school, the large ones keeping to the outside and the small ones to the 

 inside of the circular course^ 



Yellowfin 



Apart from 3 small fish between 1 and 2 pounds, the 45 yellowfin 

 caught during the fishing period were from 5 to 8 pounds in weighto Of 

 the total number taken, 27 were brought back alive, 7 or 8 died during 

 transportp and the rest were fatally injured on capture. Despite their 

 relatively large size, they swam slowly and leisurely in the livewell 

 at the rate of about 3 W^^^ f eet per secondo Only rarely did they bump 

 the sideso Their behavior in the well was the most satisfactory of the 

 four species of tunao 



