SEARCH

SEARCH BY CITATION

Keywords:

  • EmP and RLP methods;
  • index of condition;
  • relative mass;
  • Squalius squalus

Total length (LT) and mass measurements of 28 596 specimens of European chub Leuciscus cephalus, collected from a variety of waterways across Italy, were used to compute standard mass (Ws) equations by both empirical percentile (EmP) and regression line percentile (RLP) methods. The use of the EmP Ws equation [log10Ws = −4·79 + 2·68log10LT + 0·10(log10LT)2] to compute relative mass (Wr) of L. cephalus in Italy is suggested, as it was not influenced by length-related bias (LT range of application = 70–470 mm).