F1SHF:KV BUI.l.KTlN VOL Hli, NU 1 



Table 2.— Estimates of Gompertz growth model parameters and mean age (days) and mean SL (mm) for 

 larval gulf menhaden collected m the northern Gulf of Mexico during the winters 1979-80, 1980-81, and 

 1981-82. fl2 is the coefficient of determination for the respective models. 



iLA=IVIississippi River Delta (Southwest Pass Louisiana); FL = Cape San Bias, FL; TX = Galveston, TX. 

 2L|0| = length at hatching, A(0) = specific growth rate at hatching, « = exponential decline in A,o)- Values in 

 parentheses are estimated standard errors from the nonlinear regressions. 

 3Gompertz growth model did not fit the data. 



E 

 E 



X 

 »- 



CD 



Z 

 lU 



_l 



Q 



< 



Figure 4.— Growth of gulf menhaden 

 larvae collectccl in the winters of 1979- 

 80, 1980-81, and 1981-82 m the north- 

 ern Gulf of Mexico. The Gompertz growth 

 model was used to describe the pooled 

 data. Two through nine coincident data 

 points are labelled with their numeral. 

 Coincident points of 10 and above are la- 

 belled A, B, etc. 



CO 



30 



25 



20 



15 



10 



1 



1 



1 1 



1 



3 

 1 1 1 

 1 1 



1 1 



2 2231 1 1111 1 11 1121 



1 112 11 13313221331 

 21 4 222635231 8 3687ia<T 2 1 

 224235B253223445«7B32 2 

 8562 22 82 5 I 2J-9r536831 221 

 122 B8C49221AS3251 623352 11 

 1 1 780DB425*35253342 1214 1 

 4 5238 1 CBie58 31314 23 

 327586F9NBC65 6272331 12 

 34EB9A56Q7H561311 11 1 



1 274E6E>C6K5H28 111 1 

 2194EaC6546383331 1 

 55E5BaC665A2A2 1 



" ::: _ 31 1 i 



L59422 



-0.0608t 



n= 2,003 



10 



20 



30 



40 



50 



60 



70 



ESTIMATED AGE (cJays) 



82 



