caa a22 4500 605464731 CHVBK 20210128100259.0 cr unu---uuuuu 210128e20150801xx s 000 0 eng 10.1007/s10499-014-9853-8 doi (NATIONALLICENCE)springer-10.1007/s10499-014-9853-8 Effects of rearing density and tank colour on juvenile sharpsnout seabream ( Diplodus puntazzo ) growth performance [Elektronische Daten] [Nafsika Karakatsouli, Nikolaos Kassianos, Sofronios Papoutsoglou] Sharpsnout seabream Diplodus puntazzo has been successfully introduced in Mediterranean aquaculture for reasons of species diversification. However, there is limited information related to specific rearing conditions that the species may require for production optimization in land-based aquaculture. The aim of the present study was to investigate the combined effects of rearing density and background colour on growth performance of sharpsnout sea bream D. puntazzo reared in a recirculating water system. Juveniles (4.0±0.03g) were reared (duplicated groups) under low (D 16 fish tank−1 or 1kgm−3) and high (3D 48 fish tank−1 or 3kgm−3) density in white, light blue and black tanks for 88days. During the first 53days of rearing, fish under low density presented better growth than fish under high density. However, in the following period (days 53-88) SGR in 3D-reared fish was significantly higher than in D-reared fish, resulting in no mass differences on day 88. Regardless of rearing density effects, black tanks had a negative effect on growth and should be avoided in sharpsnout sea bream rearing. Within the life stage studied, present growth results, along with those of fish groups homogeneity (coefficient of mass variation, frequency distribution of mass), indicate a change in social interactions according to body size. It is suggested that juvenile sharpsnout seabream should be stocked at low density until they reach approximately 16g. Afterwards, a higher density seems more appropriate for this species while it also ensures a higher productivity. Springer International Publishing Switzerland, 2014 Background colour nationallicence Diplodus puntazzo nationallicence Growth nationallicence Mass distribution nationallicence Rearing density nationallicence Recirculating water system nationallicence Karakatsouli Nafsika Department of Applied Hydrobiology, Faculty of Animal Science and Aquaculture, Agricultural University of Athens, Iera Odos 75, 118 55, Athens, Greece aut Kassianos Nikolaos Department of Applied Hydrobiology, Faculty of Animal Science and Aquaculture, Agricultural University of Athens, Iera Odos 75, 118 55, Athens, Greece aut Papoutsoglou Sofronios Department of Applied Hydrobiology, Faculty of Animal Science and Aquaculture, Agricultural University of Athens, Iera Odos 75, 118 55, Athens, Greece aut Aquaculture International Springer International Publishing 23/4(2015-08-01), 943-953 0967-6120 23:4<943 2015 23 10499 https://doi.org/10.1007/s10499-014-9853-8 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10499-014-9853-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Karakatsouli Nafsika Department of Applied Hydrobiology, Faculty of Animal Science and Aquaculture, Agricultural University of Athens, Iera Odos 75, 118 55, Athens, Greece aut NATIONALLICENCE 700 1- Kassianos Nikolaos Department of Applied Hydrobiology, Faculty of Animal Science and Aquaculture, Agricultural University of Athens, Iera Odos 75, 118 55, Athens, Greece aut NATIONALLICENCE 700 1- Papoutsoglou Sofronios Department of Applied Hydrobiology, Faculty of Animal Science and Aquaculture, Agricultural University of Athens, Iera Odos 75, 118 55, Athens, Greece aut NATIONALLICENCE 773 0- Aquaculture International Springer International Publishing 23/4(2015-08-01), 943-953 0967-6120 23:4<943 2015 23 10499