(Pavesi 1889, Parona 1919). These were set near the 

 coasts and the more important ones depended on the 

 spawning migrations of the bluefin in the Medi- 

 terranean and its approaches. An eastward or "arrival" 

 run of prespawming fish occurs in May and June in 

 many localities, and a westward or "return" run of 

 spent fish occurs in July and August in some of these, 

 and in some other locations. Most of these tuna traps 

 were designed to catch fish coming from one direc- 

 tion only, but a few were reversed between the sea- 

 sons and fished both runs. Less elaborate traps have 

 taken bluefin tuna in many localities during other 

 seasons. 



Handline and harpoon fisheries have existed in 

 many areas, in some cases for centunes, taking rela- 

 tively small catches. Specialized gears, such as the 

 "thonaille" (a drifting entangling net) and "seinche" 



1 — 



90 



too 

 LCNGTtltcml 



Figure 13. Lengths of bluefm tuna by region ("+" on graph 

 means less than 0.5%). 



16 



