FAHAY: OCCURRENCE OF SILVER HAKE EGGS AND LARVAE 



Table 7. — Mean lengths (mm NL) of silver hake larvae collected during Dolphin cruise 

 D-66-12 (October, 1966), arranged by transect, net 1 (0-15 m) or net 2 (18-33 m), and 

 station. 



Station 



Table 8. — Abundance of silver hake larvae relative to mean temperature within the sampling 



depths of individual Gulf V nets. 



Temperature 

 (°C) within 

 samplers' 



depth range 



Number ot tows which collected: 



Number of tows 



1-10 



larvae 



11-100 

 larvae 



101-300 

 larvae 



301-500 

 larvae 



500 + 

 larvae 



Containing 

 silver hake 



Total 



6.0-6.9 

 7.0-7.9 

 80-8.9 

 9.0-9.9 

 10.0-10.9 

 11.0-11.9 

 12.0-12.9 

 13.0-13.9 

 14.0-14.9 

 15.0-15.9 

 16.0-16.9 

 17.0-17.9 

 18.0-18.9 

 19.0-19,9 

 20.0-20.9 

 21,0-21 9 

 220-22.9 

 23.0-23.9 

 24.0-24.9 

 25.0-25.9 

 260-26.9 



Total tows 



5 

 3 



4 



17 



9 



5 



4 



14 



22 



8 



12 



12 



4 



1 



8 



6 



6 



1 



1 



142 



2 

 2 

 8 



5 

 6 

 7 

 14 

 8 

 6 

 5 

 6 

 5 

 3 

 1 



80 



27 



7 



3 



7 



19 



19 



10 



15 



25 



46 



19 



19 



19 



10 



10 



12 



8 



6 



1 



1 











256 



9 

 12 



18 

 34 

 32 

 17 

 22 

 48 

 75 

 38 

 36 

 44 

 33 

 39 

 23 

 25 

 29 

 14 

 20 

 11 

 6 



Although day and night tows were equally pro- 

 ductive (Table 10), differences exist when larval 

 size is considered. Most of the smallest larvae 

 were taken during the day, while most larger 



larvae and postlarvae were taken from dusk to 

 dawn (Figure 10). 



There are several possible explanations for the 

 higher incidence of larger larvae and postlarvae 



825 



