Presumably the above tropical species have 

 development similar to that of C. sapidus. If they 

 could survive winter temperatures such as those 

 given above, their normal ranges would extend 

 to Cape Hatteras; therefore, overwintering as 



juveniles in Carolinian waters during 1967-77 

 seems unlikely. 



Spin-off eddies along the western boundary of 

 the Gulf Stream are regular features (Lee 1975). 

 These cyclonic current reversals are not wind or 



Figure l. — Gulf Stream off eastern United States between Florida and Cape Cod; isopleths represent maximum thermal gradients 

 at edges of spin-off eddies near shore and Gulf Stream meanders seaward as viewed by National Environmental Service Satellite and 

 analyzed by Miami Satellite Field Services Station for weekly loop periods. Example plots: A , 26 April-2 May 1977; B , 10-16 May 1977. 



195 



