II 



1 



2 

 3 



5 

 6 



7 



8 



9 



10 



11 



12 



13 



15 

 16 

 17 

 18 

 19 

 20 

 21 

 22 



23 



Capt. Mack 



(single rig) 

 do. 

 do. 

 do. 

 do. 

 do. 



do. 

 do. 

 do. 

 do. 

 do. 

 do. 

 do. 



Danny Boy 



(single rig) 



do. 



do. 



do. 

 (double rig) 



do. 



do. 



do. 



do. 



do. 



Joanie 



(double rig) 

 do. 



1 3/4 



1 3/4 



1/ Tow 1-1 7/8" mesh with 1 7/8 liner. 



Note: On cruises 1, 3, 6, 8 and 9 large try net of 1 3/4" mesh was used on some tows 

 (sde ^pendix). 



When the big trawl was retrieved the 

 catch was dumped on deck. The large 

 items, including sponges and big fish, 

 were removed. The remaining catch, 

 including shrinnp and small fish, was 

 mixed with a shovel and a sannple taken 

 for study. A constant sample size would 

 have been desirable, for statistical analy- 

 sis, but was not feasible. The number of 

 shrimp in these samples varied from 

 about 40 to about 200. These shrimp were 

 sexed and measured to the nearest 0.1 mm. 

 carapace length. This measurement was 



from the postorbital notch to the posterior 

 edge of the carapace. "Size" of shrimp 

 hereafter refers to this carapace length. 

 Appendix table 3 shows the relation be- 

 tween carapace length, total length, and 

 weight of female shrimp. 



Shrimp taken in try-net hauls were 

 measured if more than 20 but fewer than 

 100 were caught. If fewer than 20 were 

 caught, they were not measured, but were 

 counted and sexed. To determine relative 

 abundance of shrimp, counts were made 



