Lozano-Alvarez et al.: Fishery, growth, and movements of Panulirus argus 



85 



Table 1 



Mean carapace length (J CL mm) of Panulirus argus caught 

 in each of the six sampling zones. In 1986, no sampling was 

 performed in zone I, and only five individuals were obtained 

 in zone V. Mean CL's followed by corresponding letter in row 

 are not significantly different (P>0.05). Means with different 

 letter in row are significantly different (P<0.05), using test 

 for unplanned comparisons among pairs of means. 



Zone 



IV 



III 



II 



VI 



V 



I 



(a) 1985 60.14" 60.89" 62.34" 67.63 b 70.63 b 78.73 1 ' 

 Zone 



IV 



II 



III 



VI 



(b) 1986 63.34" 64.85" b 66.41 h 78.14 c 



50 60 70 80 90 100 

 Carapace length (mm) 



Figure 8 



(a) Size at initial capture of 148 male Panulirus 

 argus tagged at Bahia de la Ascension, and (b) size 

 of same males at recapture during first three 

 months of 1985-86 fishing season. Shadings 

 denote individual lobters and show carapace 

 length increment by selected size cohorts, to em- 

 phasize variability in growth. It is possible that 

 more than one molt is involved in some cases. 



E 125 



E 



5 100 



U) 



c 



OJ 



. 75 



o 



CO 



S 50 



CO 



° 25 

 



*?»' 

 :>;>>* 



200 400 600 800 1000 1200 1400 

 Days from settlement 



Figure 9 



Growth curves for male and female Panulirus 

 argus, as estimated by the maximum likelihood 

 approach. Only the continuous lines are based on 

 actual data; broken lines are extrapolations ac- 

 cording to model. 



dispersed from their zones of initial capture tended to 

 move toward and along the reef in both years (Figs. 

 10, 11). As an example, of the 79 recaptured lobsters 

 that had been tagged in zone III in 1985 (total number 

 tagged in zone III = 581), 29 remained in zone III 



