38 I . ' 



14"E 15' itf 17 IS 19 20 21 



Figure 7.— Surface temperatures and salinities off South Africa, April 1961. A. Temperature. B. Salinity. 



38 t r 1 1 1 1 ■ • ■ ■ ■ 1 T ■ ' ' 



u'E t^' 16* 17' 18* 19 70 21 2? 



u'E is \€ 17' 18" 19* 20* 21* 22* 



Figures. — Surface temperatLues and salinities off South \li ic.i. .liiK \9h\ . A. lemperalLMe. B- S.ilinilv. 



upwelled component of the Benguela Cuirent sys- 

 tem (<14°C and <35.r'/nu) and the Agulhas Bank 

 mixed water is absent. A similar pattern exists at 

 both 20 and 100 m. 



At this time, southeast Atlantic billfishes could 

 extend their range to the east of Cape Agulhas and 

 could also be located close inshore on the Cape 

 coast. Owing to the absence of any identifiable 



Agulhas Current water it is unlikely that any Indo- 

 Pacific billfishes would be resident in the survey 

 area. 



Late spring, October 1961 



(Fig. 9a,b) 



The winter eastward penetration of the South East 



184 



