1. Shock — referred to as the first "knock out 

 box." Scallops are placed in a hopper, 

 which is above two large flexible rollers, 

 rotating in opposite direction which slam 

 the scallops against a baffle plate. 



2. Heat — hot water into which scallops are 

 placed for several seconds and then re- 

 moved. 



3. Shock — a second duplicate "knock out 

 box" and thence to a "shaker screen" 

 through which the shucked animal falls 

 prior to evisceration and the shells are 

 vibrated off in another direction. 



Culling 



Throughout the Florida east coast grounds 

 there is continuous evidence of calico scallops 

 in different stages of their life cycle. Catches, 

 therefore, may be composed entirely of live 

 scallops, or of shell, or any ratio in between. 



An important shipboard labor-saving device 

 is the culler, or separating machine, which sorts 

 out live scallops from shell and debris. Figure 

 16 shows a successful culler being tested aboard 

 the Oregon. It is a simple device consisting of 

 a series of pipes placed longitudinally on an 

 inclined frame. The lower portion of the frame 

 is on springs and is vibrated by an eccentric 

 weight. The unsorted catch is fed onto the top 



Figure 16. — Culling machine for separating live scallops from shells and debris being tested aboard the ex- 

 ploratory fishing vessel. 



16 



