Lee’s phenomenon in males and females of P. bonelli from the River Aggia: comparison of back-calculated total lengths between specimens at age t and (t + i) for each age class. Results of Mann–Whitney U test are given; values of p< 0.05 considered significant.
|Age t||Age (t + i)||Mann-Whitney|
|Age class||N||Mean TL ± SE||N||Mean TL ± SE||Z||p|
|1+||27||3.22 ± 0.07||59||3.11 ± 0.04||1.279||0.201|
|Males||2+||23||4.91 ± 0.10||36||4.85 ± 0.06||0.575||0.565|
|3+||27||6.05 ± 0.07||9||6.07 ± 0.05||1.078||0.281|
|Females||1+||46||3.11 ± 0.05||39||3.25 ± 0.05||2.161||0.031|
|2+||36||4.97 ± 0.06||3||5.40 ± 0.07||2.108||0.035|
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