Broadhurst et al.: Effects of twine diameter and mesfi size in thie body of prawn trawls 



467 



Analysis of prawn sizes 



The logistic length selection curves derived for each of the 

 new trawl bodies are provided in Figure 5. Model deviance 

 indicated sufficient goodness of fit for both curves (Table 



4). The 95^^ confidence Hmits of the selectivity parameters 

 showed that there were no statistically significant differ- 

 ences between the two new trawl bodies (Table 4). 



Significant differences were detected in Kolmogorov- 

 Smirnov tests on the commercial-size categories of prawns 



