Nelson: Age, growth; mortality, and distribution of Lagodon rhomboides 



587 



14 80 



Age 1 



5 22 23 11 19 9 



Age 2 



2 5 3 12 1 



Age 3 



12 3 3 9 1 



DJ FMAMJ JASONDJ 

 Montti 



Figure 3 



Monthly proportions of whole otoliths with opaque edges 

 for pinfish ages 1-3. ±1 standard error bars are shown. 



GSIs began to increase in October (females) and Novem- 

 ber (males) in Tampa Bay. The highest GSIs for males 

 and females in Tampa Bay were 5% and 8%, respectively, 

 observed in December. High and moderate GSIs for 

 females and males during January in the Gulf of Mex- 

 ico indicated continued spawning, but low values in 

 April suggested that spawning ended prior to that month 

 (Fig. 5). 



Maturity of male and female pinfish was related sig- 

 nificantly to length (male: Wald x^=18.8, P<0.001; female: 



0.5 

 0,4 



c 

 o 



5 0.3 



Q. 

 O 



" 02 

 0-1 \ 

 0.0 



E 



- 200 



150 



100 



50 



300 1 



250 



Tampa Bay, /i=549 

 Gulf of Mexico, n=96 



E 



i^ 



- t^^-pi 



B 



012345678 



Age (years) 



Figure 4 



Plots of (A) age composition from Tampa Bay and Gulf of 

 Mexico samples and (B) von Bertalanffy growth model fitted 

 to standard length and age data for all sexes combined. 



Wald x^=32.1, P<0.001) by logistic equations, and there 

 was no evidence of lack of model fit (male: x^=81.1, df=94, 

 P=0.82, max-rescaled r2=0.38; female: x^=109.2, df=121. 



