15-1 



10- 



5- 



P0RTU6AL- FISHERIES 



D NUMBER OF FISH /lO* 

 ■ METRIC TONS/10' 



iiwihrtJrihmifrtwiftww^ 



ri5 



-10 



-5 



1930 35 4b 45 50 55 ' ' 60 ' " 65 70 ° 



'5t SPAIN -fisheries "-is 



10' 



5- 



I 



IlllllillUldU 



55 60 65 70 



■to 



-5 



5-1 



1930 35 40 45 50 55 60 65 



MOROCCO -FISHERIES 



-D 



DATA FOR TRAPS OF LARACHE GROUP ONLY 



pnnpnnRnn, nl10n[1pnn[]f1f]f1n 



1926 30 35 40 45 50 55 60 65 70 



Voar 



Figure 50. Annual catches of Ibero-Moroccan Bay trap fisheries lor blucfin tuna in lens of thousands of fish and in 

 thousands of tons. 



showed locations for 23 traps, of 

 which eight were active, along the 

 coast of Provence (France) between 

 the mouth of the Rhone and Monaco 

 Thomazi (1947), however, reported 

 that the last of the French traps dis- 

 appeared between 1 892 and 1 900 



The Spanish and Moroccan 

 Mediterranean traps have taken only 

 small catches of blucfin tuna in re- 

 cent years Parona (1919) showed 23 

 trap locations, of which nine were 

 active, along the Spanish coast east 

 of La Lmea. Belloc (1961) listed five 

 in that area, with maximum annual 

 catches of 60 tons of all species com- 

 bined for a single trap m the years 

 1954-1958. In 1975 only one of these 



traps was set, and it took no bluefin 

 tuna (Rey el al, 1977), Most of these 

 traps fished from early February to 

 mid October, and took feeding (non- 

 spawning) tuna Other species were 

 more important in their catches 

 (Belloc 1961) 



Return traps have been set at La 

 Lincu, on the Spanish coast near 

 C'libraltar; at Ceuta, a Spanish city on 

 the opposite side of the Strait of 

 (libraltar, and at three nearby loca- 

 tions on the Mediterranean coast of 

 Morocco (Belloc 1961, Sara 1964) 

 These traps take blucfin in .kily and 

 August, but again they depend mainly 

 on other species 



Yearly catches of bluefm tuna at 

 La Lmea since 1961 have ranged 

 from in 1 968 up to 2,400 fish weigh- 

 ing 340 tons in 1965 Their average 

 weights have varied from 128 to 186 

 kg, probably excluding the numer- 

 ous age (1 kg) fish which are taken 

 in some years (Rodriguez-Roda 

 1964a, 1964b, 1969d, 1973; Rey et 

 al. 1977). 



The trap at Ceuta and those along 

 the Medilcnanean coast of Morocco 

 may bo considered together Only one 

 or two of the Moroccan traps have 

 fished in most recent years The blue- 

 fin tuna catches have ranged up to a 

 maximum of 1 72 tons for a trap, but 

 have usually been 50 tons or less 



49 



