The effect of timing of extended photoperiod on growth and maturity of brook trout (Salvelinus fontinalis)
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12520%2F19%3A43899091" target="_blank" >RIV/60076658:12520/19:43899091 - isvavai.cz</a>
Výsledek na webu
<a href="https://onlinelibrary.wiley.com/doi/full/10.1111/are.14053" target="_blank" >https://onlinelibrary.wiley.com/doi/full/10.1111/are.14053</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1111/are.14053" target="_blank" >10.1111/are.14053</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
The effect of timing of extended photoperiod on growth and maturity of brook trout (Salvelinus fontinalis)
Popis výsledku v původním jazyce
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 similar to 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 < 0.05), and a delay in gonad development and sexual maturity. Significantly higher numbers of sexually mature fish were found among controls groups, regardless of sex. Survival rate was not affected by light regime. This study demonstrated that the short-term expansion of the photo period delayed maturation and increased the growth rate of brook trout.
Název v anglickém jazyce
The effect of timing of extended photoperiod on growth and maturity of brook trout (Salvelinus fontinalis)
Popis výsledku anglicky
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 similar to 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 < 0.05), and a delay in gonad development and sexual maturity. Significantly higher numbers of sexually mature fish were found among controls groups, regardless of sex. Survival rate was not affected by light regime. This study demonstrated that the short-term expansion of the photo period delayed maturation and increased the growth rate of brook trout.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
40103 - Fishery
Návaznosti výsledku
Projekt
Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2019
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Aquaculture Research
ISSN
1355-557X
e-ISSN
—
Svazek periodika
50
Číslo periodika v rámci svazku
6
Stát vydavatele periodika
US - Spojené státy americké
Počet stran výsledku
8
Strana od-do
1697-1704
Kód UT WoS článku
000467576900016
EID výsledku v databázi Scopus
2-s2.0-85064661217