FISHERY BULLETIN: VOL. 75, NO. 4 



10°- 



KEY TO 

 SHADED AREA 



OPEN 

 MAR1 

 NOV 30 



OPEN 



MAR1- 



JUNE30 



EAST 7 a 



GULLIES Ia 



DROP-OFF 

 RIDGES 



80 



STEEPLES 81 



60 



45 



FIGURE 1. — The Guianas-Brazil shrimping grounds. The chart shows the fishing zones and their common names. The United 

 States-Brazil Shrimp Agreement Area is shaded and the boundaries of the Area and the fishing seasons for U.S. vessels are shown in the 

 insert. 



1,500,000-1 



r700 



1,000,000- 



t/t 



Q 



z 

 o 



500,000- 



A S O N D 

 1972 



MAM 



SONDJ FMAMJ 

 1973 1974 



MONTH OF LANDING 



O N 



FIGURE 2. — Shrimp catches of U.S. vessels by month and area for the Guianas-Brazil fishery. Weights of heads-off shrimp are in 

 pounds and metric tons. Vertical lines represent the total U.S. landings reported by the processing plants and are reported by month 

 in which the landing was made. Vertical bars represent the "hail" or estimated catches of U.S. vessels submitting logbooks and are 

 reported by the month of capture. The shaded area of the vertical bar represents the proportion of the logged catches recorded from the 

 United States-Brazil Shrimp Agreement Area. 



ture, fishing effort, catch, and species and size of 

 shrimp, were taken from logbooks and landing 

 records. The vessel captain made daily entries in 

 the logbook on fishing area (identified by 1°- 



coastal zone and by water depth), fishing effort 

 (number of hauls and number of hours fishing, by 

 day and by night), estimated shrimp catch 

 (pounds, heads-off weight), and most abundant 



704 



