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Empirical standard mass equation for Salmo marmoratus |
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| Authors: | M Lorenzoni D Giannetto G Maio E Pizzul L Pompei P Turin S Vincenzi A Crivelli |
| Institution: | 1. Dipartimento di Biologia Cellulare e Ambientale, Università di Perugia, Via Elce di Sotto, 06123 Perugia, Italy;2. Aquaprogram s.r.l., Via L. Della Robbia, 48‐36100, Vicenza, Italy;3. Dipartimento di Scienze della Vita, Università di Trieste, Via Giorgieri, 10‐34127, Trieste, Italy;4. Bioprogramm sc, Via Lisbona, 28/a, 35127, Padova, Italy;5. Center for Stock Assessment Research, National Marine Fisheries Service, 110 Shaffer Road, Santa Cruz, CA 95060, U.S.A.;6. Biological Station of Tour Du Valat, 13200 Le Sambuc, France |
| Abstract: | Total length (LT) (range 24–1000 mm; mean ±s.e . = 170·21 ± 0·36 mm) and mass (W) (range 0·10–9590 g; mean ±s.e . = 76·03 ± 0·87 g) of 36 460 specimens of marble trout Salmo marmoratus were used to compute a standard mass (Ws) equation for this species by means of the empirical percentile (EmP) method. The EmP Ws equation calculated was: log10Ws = ?5·208 + 3·202 log10LT? 0·046 (log10LT)2 (LT range 90–570 mm) and it is valid throughout the species' area of distribution across Europe. |
| Keywords: | condition indices EmP method marble trout relative mass |