FISHERY BULLETIN: VOL. 73, NO. 1 



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TEMPERATURE 



Figure 20. — Index of abundance (geometric mean) of Raja radiata captured in each subarea during winter 1969 within 

 temperature intervals of 1°C. See Figure 3 for explanation of fractions and whole numbers. 



reports (Bigelow and Schroeder 1953; Leim and 

 Scott 1966; and McEachran 1973) and findings 

 in the present study, are summarized. 



Raja eglanteria is found from Long Island to 

 northern Mexico but is rare off southern Florida. 

 It occurs from the shore zone to 329 m at 5° to 

 27°C, but is most abundant between the shore 

 zone and 111 m at 9° to 20°C. 



Raja garmani occurs from the offing of Nan- 

 tucket Shoals to the Dry Tortugas, Fla. North 

 of Cape Hatteras, N.C., it is found in 37 to 366 m 

 at 6° to 17°C, and south of there it occurs from 

 66 to 366 m at 11° to 19°C. 



Raja laevis extends from the southern New- 

 foundland banks and the Gulf of St. Lawrence 

 south to North Carolina. It is found from shore 

 to 750 m at 1.2° to 20°C. 



Raja erinacea regularly occurs from southern 

 Nova Scotia to Cape Hatteras. It is found between 

 shore and 384 m at 2° to 21°C but is most abun- 

 dant in water shallower than 111 m at 2° to 15°C. 



Raja ocellata is found from the Newfound- 

 land banks and southern Gulf of St. Lawrence 

 to Cape Hatteras. It occurs from shore to 371 m 

 at -1.2° to 19°C but is most abundant in water 

 shallower than 111 m at 2° to 15°C. 



Raja senta occurs from the southern Newfound- 

 land banks and the Gulf of St. Lawrence to South 

 Carolina. It occurs from 31 to 974 m at -1.3° 

 to 14°C but is most abundant below 110 m at 

 2° to 10°C. 



Raja radiata extends from Labrador, west 

 Greenland, Hudson Bay, Grand Banks, and Gulf 

 of St. Lawrence to South Carolina. It occurs from 



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