Effects of spectral composition, photoperiod and light intensity on the gonadal development of Atlantic salmon Salmo salar in recirculating aquaculture systems (RAS)
Artificial lighting regimes have been successfully used to inhibit sexual maturity of Atlantic salmon in confinement. However, when these operations are applied in commercial recirculating aquaculture systems (RAS) using standard lighting technology, sexual maturation is not suppressed. In this stud...
Published in: | Chinese Journal of Oceanology and Limnology |
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ftchinacasciocas:oai:ir.qdio.ac.cn:337002/25409 2023-05-15T15:29:45+02:00 Effects of spectral composition, photoperiod and light intensity on the gonadal development of Atlantic salmon Salmo salar in recirculating aquaculture systems (RAS) Qiu Denggao Xu Shihong Song Changbin Chi Liang Li Xian Sun Guoxiang Liu Baoliang Liu Ying 2015 http://ir.qdio.ac.cn/handle/337002/25409 https://doi.org/10.1007/s00343-015-4011-3 英语 eng CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY http://ir.qdio.ac.cn/handle/337002/25409 doi:10.1007/s00343-015-4011-3 Salmo Salar Artificial Light Regimes Gonadal Development Recirculating Aquaculture Systems (Ras) Article 期刊论文 2015 ftchinacasciocas https://doi.org/10.1007/s00343-015-4011-3 2022-06-27T05:36:55Z Artificial lighting regimes have been successfully used to inhibit sexual maturity of Atlantic salmon in confinement. However, when these operations are applied in commercial recirculating aquaculture systems (RAS) using standard lighting technology, sexual maturation is not suppressed. In this study, an L-9 (3(3)) orthogonal design was used to determine the effects of three factors (spectral composition, photoperiod, and light intensity) on the gonadal development of Atlantic salmon in RAS. We demonstrated that the photoperiod at the tested levels had a much greater effect on the gonadosomatic index and female Fulton condition factor than spectral composition and light intensity. The photoperiod had a significant effect on the secretion of sex steroids and melatonin (P<0.05), and a short photoperiod delayed sex steroid and melatonin level increases. The three test factors had no significant effects on the survival rate, specific growth rate, relative weight gain, and male Fulton condition factor (P>0.05). The optimum lighting levels in female and male Atlantic salmon were LD 8:16, 455 nm (or 625 nm), 8.60 W/m(2); and LD 8:16, 8.60 W/m(2), 455 nm respectively. These conditions not only delayed gonadal development, but also had no negative effects on Atlantic salmon growth in RAS. These results demonstrate that a combination of spectral composition, photoperiod and light intensity is effective at delaying the gonadal development of both male and female salmon in RAS. Article in Journal/Newspaper Atlantic salmon Salmo salar Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR Fulton ENVELOPE(-144.900,-144.900,-76.883,-76.883) Chinese Journal of Oceanology and Limnology 33 1 45 56 |
institution |
Open Polar |
collection |
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR |
op_collection_id |
ftchinacasciocas |
language |
English |
topic |
Salmo Salar Artificial Light Regimes Gonadal Development Recirculating Aquaculture Systems (Ras) |
spellingShingle |
Salmo Salar Artificial Light Regimes Gonadal Development Recirculating Aquaculture Systems (Ras) Qiu Denggao Xu Shihong Song Changbin Chi Liang Li Xian Sun Guoxiang Liu Baoliang Liu Ying Effects of spectral composition, photoperiod and light intensity on the gonadal development of Atlantic salmon Salmo salar in recirculating aquaculture systems (RAS) |
topic_facet |
Salmo Salar Artificial Light Regimes Gonadal Development Recirculating Aquaculture Systems (Ras) |
description |
Artificial lighting regimes have been successfully used to inhibit sexual maturity of Atlantic salmon in confinement. However, when these operations are applied in commercial recirculating aquaculture systems (RAS) using standard lighting technology, sexual maturation is not suppressed. In this study, an L-9 (3(3)) orthogonal design was used to determine the effects of three factors (spectral composition, photoperiod, and light intensity) on the gonadal development of Atlantic salmon in RAS. We demonstrated that the photoperiod at the tested levels had a much greater effect on the gonadosomatic index and female Fulton condition factor than spectral composition and light intensity. The photoperiod had a significant effect on the secretion of sex steroids and melatonin (P<0.05), and a short photoperiod delayed sex steroid and melatonin level increases. The three test factors had no significant effects on the survival rate, specific growth rate, relative weight gain, and male Fulton condition factor (P>0.05). The optimum lighting levels in female and male Atlantic salmon were LD 8:16, 455 nm (or 625 nm), 8.60 W/m(2); and LD 8:16, 8.60 W/m(2), 455 nm respectively. These conditions not only delayed gonadal development, but also had no negative effects on Atlantic salmon growth in RAS. These results demonstrate that a combination of spectral composition, photoperiod and light intensity is effective at delaying the gonadal development of both male and female salmon in RAS. |
format |
Article in Journal/Newspaper |
author |
Qiu Denggao Xu Shihong Song Changbin Chi Liang Li Xian Sun Guoxiang Liu Baoliang Liu Ying |
author_facet |
Qiu Denggao Xu Shihong Song Changbin Chi Liang Li Xian Sun Guoxiang Liu Baoliang Liu Ying |
author_sort |
Qiu Denggao |
title |
Effects of spectral composition, photoperiod and light intensity on the gonadal development of Atlantic salmon Salmo salar in recirculating aquaculture systems (RAS) |
title_short |
Effects of spectral composition, photoperiod and light intensity on the gonadal development of Atlantic salmon Salmo salar in recirculating aquaculture systems (RAS) |
title_full |
Effects of spectral composition, photoperiod and light intensity on the gonadal development of Atlantic salmon Salmo salar in recirculating aquaculture systems (RAS) |
title_fullStr |
Effects of spectral composition, photoperiod and light intensity on the gonadal development of Atlantic salmon Salmo salar in recirculating aquaculture systems (RAS) |
title_full_unstemmed |
Effects of spectral composition, photoperiod and light intensity on the gonadal development of Atlantic salmon Salmo salar in recirculating aquaculture systems (RAS) |
title_sort |
effects of spectral composition, photoperiod and light intensity on the gonadal development of atlantic salmon salmo salar in recirculating aquaculture systems (ras) |
publishDate |
2015 |
url |
http://ir.qdio.ac.cn/handle/337002/25409 https://doi.org/10.1007/s00343-015-4011-3 |
long_lat |
ENVELOPE(-144.900,-144.900,-76.883,-76.883) |
geographic |
Fulton |
geographic_facet |
Fulton |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_relation |
CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY http://ir.qdio.ac.cn/handle/337002/25409 doi:10.1007/s00343-015-4011-3 |
op_doi |
https://doi.org/10.1007/s00343-015-4011-3 |
container_title |
Chinese Journal of Oceanology and Limnology |
container_volume |
33 |
container_issue |
1 |
container_start_page |
45 |
op_container_end_page |
56 |
_version_ |
1766360182846128128 |