TAGGED SCALLOP DETERIORATION 



FIPPENNIES LEDGE, GULF OF MAINE 



JULY 1986 - JULY 1987 



CL 



o 



< 



O 



tn 



u_ 

 O 



o 



cr 



UJ 

 Q_ 



70 

 60 

 50 

 40 

 30 

 20 

 10 

 



O O LIVEDE(I) 



• # DEADE(I) 



TIME 



A 



TIME 



4- 



ATTACHED 

 HINGE WITH 

 RESILIUM 



ATTACHED 

 HINGE WITHOUT 

 RESILIUM 



UNATTACHED 

 HINGE 



Figure 2. The tagged live scallops which died (LIVEDE and 

 LIVEDI) had been dead for 8.5 + 3.5 months, 

 whereas the dead tagged scallops (DEADE and DEADI) 

 had been dead for the entire year. With 

 increasing time the percent of attached valves 

 decreased and the percent of unattached valves 

 increased. After one year, 50 percent of the 

 dead scallops had unattached valves. 



237 



