small crabs at yreater depths (> 64U m) , suggests that larvae settle to the 

 bottom in the deeper area to assume a benthic life style, and tney appear to 

 migrate upslope as they mature. 



Little is known about the feeding habits of red crao; however, haDitat 

 and morphology suggest that it is both a scavenger and a predator on smaller 

 benthic organisms. Under laboratory conditions, they have eaten molluscs, 

 coelenterates and fishes. 



Bottom Trawl Survey Results 



The cumulative spring and autumn distributions over the time series are 

 shown in Figures 19.1 and 19.2. Due to the type of gear used (roller sweep), 

 and limited deepwater sampling, catches of red crab were small for both 

 seasons. 



Graphs of mean weight and number per tow are shown in Figures 19.3-19.6. 



Length frequencies for strata sets, arranged by season, are shown in 

 Figures 19.7-19.11. These plots are of minimal value because of light 

 catches. There are no plots for inshore spring and autumn strata sets, and 

 offshore autumn strata set 6. 



Youny-of-the-year red crao have not been caught during bottom trawl 

 surveys. 



Haefner (1978) conducted an extensive study of red crab distribution and 

 aDundance in the Norfolk Canyon area, but differences in survey design did not 

 allow incorporation of his data into this report. 



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