The effect of timing of extended photoperiod on growth and maturity of brook trout ( Salvelinus fontinalis )
| Autor: | Vlastimil Stejskal, Roman Sebesta, Tomas Policar, Jan Matoušek, Katsiaryna Lundova, Markéta Prokešová |
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| Rok vydání: | 2019 |
| Předmět: |
photoperiodism
0303 health sciences biology business.industry 04 agricultural and veterinary sciences Aquatic Science biology.organism_classification 03 medical and health sciences Trout Animal science Fontinalis Aquaculture 040102 fisheries 0401 agriculture forestry and fisheries Sexual maturity Growth rate Development of the gonads business 030304 developmental biology Salvelinus |
| Zdroj: | Aquaculture Research. 50:1697-1704 |
| ISSN: | 1365-2109 1355-557X |
| Popis: | The influence of timing of extended photoperiods on growth and maturity of brook trout was investigated in a 112‐day experiment. The fish with mean initial weight of ~192 g were reared under four light regimes: one control group with natural ambient photoperiod and three groups exposed to an 18L:6D regime initiated at days 1, 23 or 46 of the growth trial. Light‐emitting diodes, with intensity of 250–1000 lux, depending on the distance from the light source, were used for extending light periods. There was a positive effect of prolonged day length on fish growth (p |
| Databáze: | OpenAIRE |
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