riontni Dui_,j_in,in\: vul. 04, inu. z 



Blue King Crab 



Male and female blue king crab of various sizes 

 from Muir and Adams Inlets in Glacier Bay (Fig. 1) 

 were measured, weighed, and examined for B. 

 callosus by the authors in March 1984. Commercial 

 gear was used but with modified escape ports to pre- 

 vent loss of juvenile crabs. Data on large male blue 

 king crabs from Lynn Canal and Glacier Bay were 

 also gathered at dockside areas before sale to 

 processors or the public Since state regulations for 

 southeastern Alaska restrict the commercial harvest 

 of blue king crabs to males M65 mm in carapace 

 width, all commercial samples, therefore, excluded 

 females and smaller adult males. 



Golden King Crabs 



Male and female golden king crabs of various sizes 



were collected by the authors from Lynn Canal near 

 Haines, AK (Fig. 1), using standard pot gear in May 

 1984. Commercial catches in November 1983 pro- 

 vided legal sized (M78 mm carapace width) males. 



RESULTS 



The prevalences of B. callosus in the commercial 

 catches of male blue king crabs were 6.3% and 11.6% 

 for Lynn Canal and Glacier Bay, respectively. Sam- 

 ples from Glacier Bay, which contained males and 

 females of all sizes, had a prevalence of 76%. The 

 prevalence in varisized male and female L. aequi- 

 spina collected from the Haines area was 20%. 



Linear length-weight relationships of log trans- 

 formed data best defined our data, since no trends 

 were present in the residuals (differences between 

 predicted lines and actual data) of parasitized or non- 

 parasitized crabs. 



Figure 1.— Sampling sites of blue, Paralithodes platypus, and golden, Lithodes aequispina, king crabs in south- 

 eastern Alaska. 



328 



