Unusual conditions for Siberian sturgeon ( Acipenser baerii Brandt) spawning
International audience Spawning of Siberian sturgeon A. baerii was induced hormonally using mammalian gonadotropin-releasing hormone analogue GnRHa ([D-Ala(6), Des Gly(10)]-LHRH Ethylamide) in Uruguay (35 degrees S) and results were compared with treatments made in France (45 degrees N). Testosteron...
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Format: | Article in Journal/Newspaper |
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ftunivnantes:oai:HAL:hal-02667601v1 2023-05-15T13:01:56+02:00 Unusual conditions for Siberian sturgeon ( Acipenser baerii Brandt) spawning Vizziano, Denise Barrios, Florencia Astigarraga, Irène Breton, Bernard Williot, Patrick Universidad de la República Montevideo (UDELAR) Station commune de Recherches en Ichtyophysiologie, Biodiversité et Environnement (SCRIBE) Institut National de la Recherche Agronomique (INRA) Auteur indépendant Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA) 2006 https://hal.inrae.fr/hal-02667601 https://doi.org/10.1111/j.1439-0426.2007.00978.x en eng HAL CCSD Wiley info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1439-0426.2007.00978.x hal-02667601 https://hal.inrae.fr/hal-02667601 doi:10.1111/j.1439-0426.2007.00978.x PRODINRA: 26913 WOS: 000247966100059 ISSN: 0175-8659 EISSN: 1439-0426 Journal of Applied Ichthyology https://hal.inrae.fr/hal-02667601 Journal of Applied Ichthyology, Wiley, 2006, 22, pp.325-330. ⟨10.1111/j.1439-0426.2007.00978.x⟩ esturgeon sibérien [SDV]Life Sciences [q-bio] [INFO]Computer Science [cs] info:eu-repo/semantics/article Journal articles 2006 ftunivnantes https://doi.org/10.1111/j.1439-0426.2007.00978.x 2022-06-12T06:27:01Z International audience Spawning of Siberian sturgeon A. baerii was induced hormonally using mammalian gonadotropin-releasing hormone analogue GnRHa ([D-Ala(6), Des Gly(10)]-LHRH Ethylamide) in Uruguay (35 degrees S) and results were compared with treatments made in France (45 degrees N). Testosterone, estradiol-17 beta and 17, 20 beta-dihydroxy-4-pregnen-3-one (17, 20 beta P) blood plasma concentrations were measured by RIA before and after GnRHa treatment. Females (6 years old) injected in Uruguay with a single dosis of 10 mu g kg(-1) of GnRHa ovulated spontaneously between 25 and 39 h post-treatment, while males (6 years old) released sperm after 26 h of stimulation. Hormonal induction was made at 18-19 degrees C. Eggs and larvae of medium quality were obtained. In France, females (10 years old) induced with two doses of 5 mu g kg(-1) b.w. of GnRHa (similar to 15 degrees C) did not finish their follicle maturation, while males (16 years old) released up to 100 ml of good quality sperm after a single injection with 5 mu g kg(-1) b.w. of GnRHa. The 17, 20 beta P levels showed a co-evolution with the sperm volume released by 16 years old males suggesting that this could be the maturing inducing steroid (MIS) for A. baerii males. The 17, 20 beta P levels were undetectable before GnRHa treatment and showed an increase in two females with maturing follicles, but more studies must be done in order to conclude about the physiological role of this hormone as MIS in female A. baerii. To our knowledge this is the first time that spawning induction and egg and larvae of Siberian sturgeon were obtained in a southern hemisphere country, with a warmer climate than in the north while also being exposed to a shift in seasonal temperature and light cycle. Article in Journal/Newspaper Acipenser baerii Siberian sturgeon Université de Nantes: HAL-UNIV-NANTES Uruguay Journal of Applied Ichthyology 22 s1 325 330 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
esturgeon sibérien [SDV]Life Sciences [q-bio] [INFO]Computer Science [cs] |
spellingShingle |
esturgeon sibérien [SDV]Life Sciences [q-bio] [INFO]Computer Science [cs] Vizziano, Denise Barrios, Florencia Astigarraga, Irène Breton, Bernard Williot, Patrick Unusual conditions for Siberian sturgeon ( Acipenser baerii Brandt) spawning |
topic_facet |
esturgeon sibérien [SDV]Life Sciences [q-bio] [INFO]Computer Science [cs] |
description |
International audience Spawning of Siberian sturgeon A. baerii was induced hormonally using mammalian gonadotropin-releasing hormone analogue GnRHa ([D-Ala(6), Des Gly(10)]-LHRH Ethylamide) in Uruguay (35 degrees S) and results were compared with treatments made in France (45 degrees N). Testosterone, estradiol-17 beta and 17, 20 beta-dihydroxy-4-pregnen-3-one (17, 20 beta P) blood plasma concentrations were measured by RIA before and after GnRHa treatment. Females (6 years old) injected in Uruguay with a single dosis of 10 mu g kg(-1) of GnRHa ovulated spontaneously between 25 and 39 h post-treatment, while males (6 years old) released sperm after 26 h of stimulation. Hormonal induction was made at 18-19 degrees C. Eggs and larvae of medium quality were obtained. In France, females (10 years old) induced with two doses of 5 mu g kg(-1) b.w. of GnRHa (similar to 15 degrees C) did not finish their follicle maturation, while males (16 years old) released up to 100 ml of good quality sperm after a single injection with 5 mu g kg(-1) b.w. of GnRHa. The 17, 20 beta P levels showed a co-evolution with the sperm volume released by 16 years old males suggesting that this could be the maturing inducing steroid (MIS) for A. baerii males. The 17, 20 beta P levels were undetectable before GnRHa treatment and showed an increase in two females with maturing follicles, but more studies must be done in order to conclude about the physiological role of this hormone as MIS in female A. baerii. To our knowledge this is the first time that spawning induction and egg and larvae of Siberian sturgeon were obtained in a southern hemisphere country, with a warmer climate than in the north while also being exposed to a shift in seasonal temperature and light cycle. |
author2 |
Universidad de la República Montevideo (UDELAR) Station commune de Recherches en Ichtyophysiologie, Biodiversité et Environnement (SCRIBE) Institut National de la Recherche Agronomique (INRA) Auteur indépendant Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA) |
format |
Article in Journal/Newspaper |
author |
Vizziano, Denise Barrios, Florencia Astigarraga, Irène Breton, Bernard Williot, Patrick |
author_facet |
Vizziano, Denise Barrios, Florencia Astigarraga, Irène Breton, Bernard Williot, Patrick |
author_sort |
Vizziano, Denise |
title |
Unusual conditions for Siberian sturgeon ( Acipenser baerii Brandt) spawning |
title_short |
Unusual conditions for Siberian sturgeon ( Acipenser baerii Brandt) spawning |
title_full |
Unusual conditions for Siberian sturgeon ( Acipenser baerii Brandt) spawning |
title_fullStr |
Unusual conditions for Siberian sturgeon ( Acipenser baerii Brandt) spawning |
title_full_unstemmed |
Unusual conditions for Siberian sturgeon ( Acipenser baerii Brandt) spawning |
title_sort |
unusual conditions for siberian sturgeon ( acipenser baerii brandt) spawning |
publisher |
HAL CCSD |
publishDate |
2006 |
url |
https://hal.inrae.fr/hal-02667601 https://doi.org/10.1111/j.1439-0426.2007.00978.x |
geographic |
Uruguay |
geographic_facet |
Uruguay |
genre |
Acipenser baerii Siberian sturgeon |
genre_facet |
Acipenser baerii Siberian sturgeon |
op_source |
ISSN: 0175-8659 EISSN: 1439-0426 Journal of Applied Ichthyology https://hal.inrae.fr/hal-02667601 Journal of Applied Ichthyology, Wiley, 2006, 22, pp.325-330. ⟨10.1111/j.1439-0426.2007.00978.x⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1439-0426.2007.00978.x hal-02667601 https://hal.inrae.fr/hal-02667601 doi:10.1111/j.1439-0426.2007.00978.x PRODINRA: 26913 WOS: 000247966100059 |
op_doi |
https://doi.org/10.1111/j.1439-0426.2007.00978.x |
container_title |
Journal of Applied Ichthyology |
container_volume |
22 |
container_issue |
s1 |
container_start_page |
325 |
op_container_end_page |
330 |
_version_ |
1766290583333109760 |