Table 2 presents biometric parameters (total length, cephalothorax length and abdominal length) of P. elegans, P. adspersus and P. Serratus. Concerning the size of the samples, it has been observed that females of the analysed species are bigger than male. Significant differences in TL (t = 20.42; p < 0.05) and CL (t = 18.27; p < 0.05) have been detected between sexes (Table 2).
Analyses of trace metals