Length-weight and length-length relationships for three endemic cyprinid species of the Aegean region (Turkey) with proposed standard weight equations

Authors: DANIELA GIANNETTO, ALİ SERHAN TARKAN, FERİT AKBAŞ, NİLDENİZ TOP, SEVAN AĞDAMAR, UĞUR KARAKUŞ, LAURA POMPEİ, MASSİMO LORENZONİ

Abstract: Empirical standard weight equations and length-weight and length-length relationships were estimated for Barbus pergamonensis, Capoeta bergamae, and Ladigesocypris irideus, three endemic cyprinid species of Turkey that are still not widely studied. To the best knowledge of the authors, empirical standard weight equations for the three species and L-W parameters for L. İrideus are given here for the first time. In this study, length and weight data for B. Pergamonensis, C. Bergamae, and L. İrideus were collected throughout the watercourses of Muğla Province and were used to develop species-specific W_s equations. The results were for B. Pergamonensis (total length [TL] range: 6-22 cm) log₁₀W_s= -5.713 + 3.718 log₁₀TL - 0.166 (log₁₀TL)², for C. Bergamae (TL range: 8-29 cm) log₁₀W_s= -5.224 + 3.311 log₁₀TL - 0.083 (log₁₀TL)², and for L. İrideus (TL range: 6-10 cm) log₁₀W_s= -13.298 + 12.116 log₁₀TL - 2.471 (log₁₀TL)². This study also reported new maximum TLs for the three species, together with species-specific length-weight and length-length equations.

Keywords: Condition indices, endemic species, Muğla Province, relative weight, EmP method

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