Figure 17. Halibut with monel metal strap and plastic-covered wire tag. 



Also, assuming the marked fish are representative of all fish on the grounds, the 

 proportion of marked fish recovered indicates the mortality of the stock or death rate 

 that can be attributed to fishing, that is, how "hard" the stocks of halibut are 

 being fished. 



60 c 



55° 



50 c 



45° 



CALIF. 



165° 



150° 



135° 



120° 



Figure 18. Limited migration shown by halibut tagged on Goose Islands grounds. 

 711 of 1517 total tagged recaptured at location of tagging. 



JO 



