Does constant photoperiod inhibit the onset of the reproductive cycle in northern pike (Esox lucius) males?
International audience Abstract For most temperate and arctic fish species, photoperiod is the key abiotic factor determining the onset of the reproductive cycle, and, for many species, constant long photoperiod seems to have an inhibitory effect. Yet, there is no knowledge about the effect of photo...
Published in: | Fish Physiology and Biochemistry |
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Online Access: | https://hal.inrae.fr/hal-02622151 https://hal.inrae.fr/hal-02622151/document https://hal.inrae.fr/hal-02622151/file/hal-02622151%282%29.pdf https://doi.org/10.1007/s10695-017-0435-3 |
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ftunivnantes:oai:HAL:hal-02622151v1 2023-05-15T15:10:10+02:00 Does constant photoperiod inhibit the onset of the reproductive cycle in northern pike (Esox lucius) males? Ben Ammar, Imen Milla, Sylvain Missaoui, H. Ledore, Y. Teletchea, Fabrice Fontaine, Pascal Institut National Agronomique de Tunisie (INAT) Unité de Recherches Animal et Fonctionnalités des Produits Animaux (URAFPA) Université de Lorraine (UL)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) 2018 https://hal.inrae.fr/hal-02622151 https://hal.inrae.fr/hal-02622151/document https://hal.inrae.fr/hal-02622151/file/hal-02622151%282%29.pdf https://doi.org/10.1007/s10695-017-0435-3 en eng HAL CCSD Springer Verlag info:eu-repo/semantics/altIdentifier/doi/10.1007/s10695-017-0435-3 hal-02622151 https://hal.inrae.fr/hal-02622151 https://hal.inrae.fr/hal-02622151/document https://hal.inrae.fr/hal-02622151/file/hal-02622151%282%29.pdf doi:10.1007/s10695-017-0435-3 PRODINRA: 427320 WOS: 000423826500026 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess ISSN: 0920-1742 EISSN: 1573-5168 Fish Physiology and Biochemistry https://hal.inrae.fr/hal-02622151 Fish Physiology and Biochemistry, 2018, 44 (1), pp.301-310. ⟨10.1007/s10695-017-0435-3⟩ Pike males constant photoperiod onset of reproductive cycle [SDV]Life Sciences [q-bio] [INFO]Computer Science [cs] info:eu-repo/semantics/article Journal articles 2018 ftunivnantes https://doi.org/10.1007/s10695-017-0435-3 2023-01-17T23:53:38Z International audience Abstract For most temperate and arctic fish species, photoperiod is the key abiotic factor determining the onset of the reproductive cycle, and, for many species, constant long photoperiod seems to have an inhibitory effect. Yet, there is no knowledge about the effect of photoperiod on the onset of the reproductive cycle in northern pike males. The aim of this work was to investigate the potential inhibitory effect of constant long photoperiod on pike males. Batches offish were reared in triplicate under natural simulated photoperiod (NSP) or constant long photoperiod (CP; 16L:8D) from 14 October 2013 to 14 March 2014. Fish were sampled three times (at the beginning of the photoperiod decrease, at the beginning of the temperature decrease and at the end of the temperature decrease). Morphological parameters, sexual steroid levels and spermatogenetic stages were investigated. Our results showed that CP partially inhibited gonadal development (gonado-somatic index or GSI, %; 2.5% under NSP and 1.2% under CP at day 152), spermatic development (96.2% of spermatozoa under NSP and 69.3% under CP at day 152) and the plasmatic levels of testosterone (7.20 ng/mL under NSP and 2.37 ng/mL under CP at day 152). In conclusion, photoperiod maybe one of the determinant factors that control the onset of the reproductive cycle inpike males, but temperature and endogenous rhythms also need to be investigated. Article in Journal/Newspaper Arctic Esox lucius Northern pike Université de Nantes: HAL-UNIV-NANTES Arctic Fish Physiology and Biochemistry 44 1 301 310 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
Pike males constant photoperiod onset of reproductive cycle [SDV]Life Sciences [q-bio] [INFO]Computer Science [cs] |
spellingShingle |
Pike males constant photoperiod onset of reproductive cycle [SDV]Life Sciences [q-bio] [INFO]Computer Science [cs] Ben Ammar, Imen Milla, Sylvain Missaoui, H. Ledore, Y. Teletchea, Fabrice Fontaine, Pascal Does constant photoperiod inhibit the onset of the reproductive cycle in northern pike (Esox lucius) males? |
topic_facet |
Pike males constant photoperiod onset of reproductive cycle [SDV]Life Sciences [q-bio] [INFO]Computer Science [cs] |
description |
International audience Abstract For most temperate and arctic fish species, photoperiod is the key abiotic factor determining the onset of the reproductive cycle, and, for many species, constant long photoperiod seems to have an inhibitory effect. Yet, there is no knowledge about the effect of photoperiod on the onset of the reproductive cycle in northern pike males. The aim of this work was to investigate the potential inhibitory effect of constant long photoperiod on pike males. Batches offish were reared in triplicate under natural simulated photoperiod (NSP) or constant long photoperiod (CP; 16L:8D) from 14 October 2013 to 14 March 2014. Fish were sampled three times (at the beginning of the photoperiod decrease, at the beginning of the temperature decrease and at the end of the temperature decrease). Morphological parameters, sexual steroid levels and spermatogenetic stages were investigated. Our results showed that CP partially inhibited gonadal development (gonado-somatic index or GSI, %; 2.5% under NSP and 1.2% under CP at day 152), spermatic development (96.2% of spermatozoa under NSP and 69.3% under CP at day 152) and the plasmatic levels of testosterone (7.20 ng/mL under NSP and 2.37 ng/mL under CP at day 152). In conclusion, photoperiod maybe one of the determinant factors that control the onset of the reproductive cycle inpike males, but temperature and endogenous rhythms also need to be investigated. |
author2 |
Institut National Agronomique de Tunisie (INAT) Unité de Recherches Animal et Fonctionnalités des Produits Animaux (URAFPA) Université de Lorraine (UL)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) |
format |
Article in Journal/Newspaper |
author |
Ben Ammar, Imen Milla, Sylvain Missaoui, H. Ledore, Y. Teletchea, Fabrice Fontaine, Pascal |
author_facet |
Ben Ammar, Imen Milla, Sylvain Missaoui, H. Ledore, Y. Teletchea, Fabrice Fontaine, Pascal |
author_sort |
Ben Ammar, Imen |
title |
Does constant photoperiod inhibit the onset of the reproductive cycle in northern pike (Esox lucius) males? |
title_short |
Does constant photoperiod inhibit the onset of the reproductive cycle in northern pike (Esox lucius) males? |
title_full |
Does constant photoperiod inhibit the onset of the reproductive cycle in northern pike (Esox lucius) males? |
title_fullStr |
Does constant photoperiod inhibit the onset of the reproductive cycle in northern pike (Esox lucius) males? |
title_full_unstemmed |
Does constant photoperiod inhibit the onset of the reproductive cycle in northern pike (Esox lucius) males? |
title_sort |
does constant photoperiod inhibit the onset of the reproductive cycle in northern pike (esox lucius) males? |
publisher |
HAL CCSD |
publishDate |
2018 |
url |
https://hal.inrae.fr/hal-02622151 https://hal.inrae.fr/hal-02622151/document https://hal.inrae.fr/hal-02622151/file/hal-02622151%282%29.pdf https://doi.org/10.1007/s10695-017-0435-3 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Esox lucius Northern pike |
genre_facet |
Arctic Esox lucius Northern pike |
op_source |
ISSN: 0920-1742 EISSN: 1573-5168 Fish Physiology and Biochemistry https://hal.inrae.fr/hal-02622151 Fish Physiology and Biochemistry, 2018, 44 (1), pp.301-310. ⟨10.1007/s10695-017-0435-3⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1007/s10695-017-0435-3 hal-02622151 https://hal.inrae.fr/hal-02622151 https://hal.inrae.fr/hal-02622151/document https://hal.inrae.fr/hal-02622151/file/hal-02622151%282%29.pdf doi:10.1007/s10695-017-0435-3 PRODINRA: 427320 WOS: 000423826500026 |
op_rights |
http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1007/s10695-017-0435-3 |
container_title |
Fish Physiology and Biochemistry |
container_volume |
44 |
container_issue |
1 |
container_start_page |
301 |
op_container_end_page |
310 |
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1766341219585097728 |