344 



Fishery Bulletin 90(2). 1992 



MALE 



EMPTY STOMACHS 



— o — C AREL 

 •-•- C LIDA 



If) 



X 



o 



< 



o 



I- 



01 



a. 



J F 



M A M J J A S 

 MONTHS 



O N D 



GASTRO-SOMATIC INDEX 



N: 627 (C. AREL) N: 718 (C. LIDA) 



T — I — I — I — I — I — I — r-"T — I — r 



J FMAMJ JASOND 

 MONTHS 



HEPATO-SOMATIC INDEX 



N: 627 (C. AREL) N: 7 18 (C. LIDA) 



95 - 



FMAMJ JASOND 

 MONTHS 



FEMALE 



EMPTY STOMACHS 



30 

 in 



O 25 



< 



o 20 



: N: 43 (C. AREL) N: 74 (C. LIDA) 



15- 



Q. 



UJ 



MONTHS 



GASTRO-SOMATIC INDEX 



N; 569 (C. AREL) N: 640 (C LIDA) 



O N D 



MONTHS 



1.67 



HEPATO-SOMATIC INDEX 



N: 569 (C. AREL) N; 640 (C. LIDA) 



J FMAMJ JAS 

 MONTHS 



O N D 



Figure 6 



Seasonal variations in the percentage occurrence of empty stomachs, gastrosomatic index (GI), and hepa- 

 tosomatic index (HI) for male and female Cynoglossus arel and C. lida caught commercially off Porto Novo, 

 India, October 1981-September 1982. (Refer to Appendix for monthly sample size). 



In female C. arel, occurrence of empty stomachs did 

 not correspond with spawning. However, the lowest 

 values of gastro- and hepatosomatic indices were 

 recorded (Fig. 6) only during the peak spavraing period 

 (in January). 



In both sexes of C. lida, gastro-Zhepatosomatic in- 

 dices and the occurrence of empty stomachs did not 

 reveal any relationship (Fig. 6) with peak spawning ac- 

 tivities (in September) of this species. 



