Determination of substrate preferences of tench, Tinca tinca (L.), under controlled experimental conditions |
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| Authors: | P Moreno Rendón J Martín Gallardo E García Ceballos J J Pérez Regadera J C Escudero García |
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| Institution: | Department of Physics, Ecology Area, Extremadura University, Badajoz, Spain;;'Vegas del Guadiana' Fishfarm, Junta de Extremadura, Villafranco del Guadiana, Badajoz, Spain |
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| Abstract: | The substrate preference of tench Tinca tinca (L.), 33 2‐year‐old individuals, mean size 10 ± 0.36 cm total length, was determined using four different substrates (concrete, artificial vegetation, sand and mud) in a 26 m long maquette. The species showed a high preference (100%) for the mud. Six more trials were performed combining the substrates by pairs (concrete–vegetation, concrete–mud, concrete–sand, mud–vegetation, mud–sand, sand–vegetation). Selection order was: mud (100% of the individuals when compared with concrete and sand and 98.26 ± 2.68% when compared with artificial vegetation), artificial vegetation (100% of the individuals when compared with concrete and 99.81 ± 0.76% when compared with sand), sand (98.29 ± 3.66% when compared with concrete) and concrete. |
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