Table 3. Shell Disease in the Deep Sea Red Crab, Geryon cminquedens 

 (Young, R. - 1988, in press). 



Location 



No. Crabs 



1(%) 



Rating * 



2(%) 



3(%) 



4(%) 



5(%) 



Hudson Canyon 2 02 



Block Canyon 77 



Atlantis Canyon 110 



TOTALS 3 89 

 PREVALENCE (%) 



17(8.4) 77(38) 81(40) 16(7.9) 11(5.4) 



6(7.8) 15(19.5) 33(43) 13(17) 10(13) 



10(9) 31(28) 48(41) 16( 14.5 ) 5(4.5) 



33 123 162 45 26 



(8.5) (31.6) (41.6) (11.6) (6.7) 



*Rating: 1 - absence of visible spots 



2 - very slight, <10 small spots 



3 - slight, >10 spots; <10% of body blackened 



4 - moderate, blackening over 10-50% of body 



5 - severe, blackening >50% of body; open lesions; 



missing appendages with blackening at point of break 



Note: Moderate to severe blackening noted in 13-30% of specimens 



17 



