350 



Fishery Bulletin 90(2). 1992 



and 615mm for female C. arel; 

 335 mm for male and 340 mm for 

 female C. lida. 



Based on values obtained, the 

 von Bertalanffy's equations are: 



C. arel 



Male Lt = 



570 (1 - e " 0-2376 (t + 0.7753) \ 



Female Lt = 



615(1 - e -0.3151(t + 0.2645)) 



C. lida 



Male Lt = 



335(1 -e -0-2326(1+1.6348)) 



Female Lt = 



340(1 -e -0-2231 (t+ 1.8029)) 



Male C. arel reached 194, 272, 

 and 333 mm in the 1st, 2d, and 3d 

 years, respectively (Fig. 9D), 

 while females attained a length 

 of 201, 312, and 393mm for the 

 1st, 2d, and 3d years, respective- 

 ly (Fig. 9B). Male C. lida reached 

 151, 188, and 218mm (Fig. 9H), 

 while females attained lengths of 

 153, 188, and 216 mm in the 1st, 

 2d, and 3d years, respectively 

 (Fig. 9F). 



Estimates of age and growth, 

 based on the three different meth- 

 ods, are presented in Table 15. 



Length-weight 

 relationships 



The linear relationships in 

 logarithmic values of length and 

 weight for males, females, and 

 juveniles are shown in Figure 

 lOA. These were typical length- 

 weight relationships in which 

 length increase is rapid initially, 

 but later slows down with a cor- 

 responding increase in weight. 

 Correlation coefficient values (r) 

 are highly significant as follows: 



Figure lOA 



Length-weight relationships for male, 

 female, and juvenile Cynoglossus arel and C. 

 lida caught commercially off Porto Novo, 

 India, October 1981-September 1982. 



CYNOGLOSSUS AREL 

 MALE 



CYNOGLOSSUS LIDA 

 MALE 



Ic 2 06 



g 



g 1 60 



o 



O 114-1 



N 655 



197 207 217 227 2 37 2 47 2 57 



LOG LENGTH 



FEMALE 



2 08 2 18 2 28 



LOG LENGTH 



FEMALE 



2,19 2 39 2.59 



LOG LENGTH 



JUVENILE 



2 09 2 19 2 29 



LOG LENGTH 



JUVENILE 



N 27 



191 1 96 201 206 



LOG LENGTH 



1.95 2 00 2 05 



LOG LENGTH 



