Aspects of parr-smolt transformation in anadromous and resident forms of brown trout (Salmo trutta) in comparison with Atlantic salmon (Salmo salar)
International audience This study established the existence of a parr-smolt transformation in the anadromous form of brown trout but no such change in the resident form when reared under ambient photoperiod and temperature. Smolting occurred in March-April in the larger trout of the anadromous form...
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Online Access: | https://hal.inrae.fr/hal-02715921 https://hal.inrae.fr/hal-02715921/document https://hal.inrae.fr/hal-02715921/file/Tang1994Aqua_1.pdf https://doi.org/10.1016/0044-8486(94)90007-8 |
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ftinstagro:oai:HAL:hal-02715921v1 2024-06-23T07:51:11+00:00 Aspects of parr-smolt transformation in anadromous and resident forms of brown trout (Salmo trutta) in comparison with Atlantic salmon (Salmo salar) Tanguy, J.M. Ombredane, Dominique, D. Baglinière, Jean-Luc Prunet, Patrick Ecobiologie et qualité des hydrosystèmes continentaux (EQHC) Institut National de la Recherche Agronomique (INRA)-Ecole Nationale Supérieure Agronomique de Rennes Station de physiologie des poissons Institut National de la Recherche Agronomique (INRA) 1994 https://hal.inrae.fr/hal-02715921 https://hal.inrae.fr/hal-02715921/document https://hal.inrae.fr/hal-02715921/file/Tang1994Aqua_1.pdf https://doi.org/10.1016/0044-8486(94)90007-8 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/0044-8486(94)90007-8 hal-02715921 https://hal.inrae.fr/hal-02715921 https://hal.inrae.fr/hal-02715921/document https://hal.inrae.fr/hal-02715921/file/Tang1994Aqua_1.pdf doi:10.1016/0044-8486(94)90007-8 PRODINRA: 110797 WOS: A1994NH41100006 info:eu-repo/semantics/OpenAccess ISSN: 0044-8486 EISSN: 1873-5622 Aquaculture https://hal.inrae.fr/hal-02715921 Aquaculture, 1994, 121 (1-3), pp.51-63. ⟨10.1016/0044-8486(94)90007-8⟩ https://www.journals.elsevier.com/aquaculture fish brown trout atlantic salmon photoperiod [SDV]Life Sciences [q-bio] info:eu-repo/semantics/article Journal articles 1994 ftinstagro https://doi.org/10.1016/0044-8486(94)90007-8 2024-05-29T23:48:21Z International audience This study established the existence of a parr-smolt transformation in the anadromous form of brown trout but no such change in the resident form when reared under ambient photoperiod and temperature. Smolting occurred in March-April in the larger trout of the anadromous form and in April-May in salmon. Silvering, a peak of gill Na+,K+-ATPase activity and a simultaneous decrease in plasma prolactin were observed in both salmon and the anadromous form of trout. Bimodality in length frequency and a surge in growth hormone were observed only in Atlantic salmon. No physiological or morphological changes were observed in smaller (< 13 cm) trout of the anadromous form or in the resident form. Hypo-osmoregulatory ability was greatest at the time of peak gill Na+,K+-ATPase activity and increased in spring in all trout, irrespective of smolt status. It is concluded that smolting is not as well developed in brown trout as in Atlantic salmon, and is not necessary for seawater adaptation of brown trout. It is also dependent on both stock origin and fish size. Article in Journal/Newspaper Atlantic salmon Salmo salar Portail HAL Institut Agro Aquaculture 121 1-3 51 63 |
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Open Polar |
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Portail HAL Institut Agro |
op_collection_id |
ftinstagro |
language |
English |
topic |
fish brown trout atlantic salmon photoperiod [SDV]Life Sciences [q-bio] |
spellingShingle |
fish brown trout atlantic salmon photoperiod [SDV]Life Sciences [q-bio] Tanguy, J.M. Ombredane, Dominique, D. Baglinière, Jean-Luc Prunet, Patrick Aspects of parr-smolt transformation in anadromous and resident forms of brown trout (Salmo trutta) in comparison with Atlantic salmon (Salmo salar) |
topic_facet |
fish brown trout atlantic salmon photoperiod [SDV]Life Sciences [q-bio] |
description |
International audience This study established the existence of a parr-smolt transformation in the anadromous form of brown trout but no such change in the resident form when reared under ambient photoperiod and temperature. Smolting occurred in March-April in the larger trout of the anadromous form and in April-May in salmon. Silvering, a peak of gill Na+,K+-ATPase activity and a simultaneous decrease in plasma prolactin were observed in both salmon and the anadromous form of trout. Bimodality in length frequency and a surge in growth hormone were observed only in Atlantic salmon. No physiological or morphological changes were observed in smaller (< 13 cm) trout of the anadromous form or in the resident form. Hypo-osmoregulatory ability was greatest at the time of peak gill Na+,K+-ATPase activity and increased in spring in all trout, irrespective of smolt status. It is concluded that smolting is not as well developed in brown trout as in Atlantic salmon, and is not necessary for seawater adaptation of brown trout. It is also dependent on both stock origin and fish size. |
author2 |
Ecobiologie et qualité des hydrosystèmes continentaux (EQHC) Institut National de la Recherche Agronomique (INRA)-Ecole Nationale Supérieure Agronomique de Rennes Station de physiologie des poissons Institut National de la Recherche Agronomique (INRA) |
format |
Article in Journal/Newspaper |
author |
Tanguy, J.M. Ombredane, Dominique, D. Baglinière, Jean-Luc Prunet, Patrick |
author_facet |
Tanguy, J.M. Ombredane, Dominique, D. Baglinière, Jean-Luc Prunet, Patrick |
author_sort |
Tanguy, J.M. |
title |
Aspects of parr-smolt transformation in anadromous and resident forms of brown trout (Salmo trutta) in comparison with Atlantic salmon (Salmo salar) |
title_short |
Aspects of parr-smolt transformation in anadromous and resident forms of brown trout (Salmo trutta) in comparison with Atlantic salmon (Salmo salar) |
title_full |
Aspects of parr-smolt transformation in anadromous and resident forms of brown trout (Salmo trutta) in comparison with Atlantic salmon (Salmo salar) |
title_fullStr |
Aspects of parr-smolt transformation in anadromous and resident forms of brown trout (Salmo trutta) in comparison with Atlantic salmon (Salmo salar) |
title_full_unstemmed |
Aspects of parr-smolt transformation in anadromous and resident forms of brown trout (Salmo trutta) in comparison with Atlantic salmon (Salmo salar) |
title_sort |
aspects of parr-smolt transformation in anadromous and resident forms of brown trout (salmo trutta) in comparison with atlantic salmon (salmo salar) |
publisher |
HAL CCSD |
publishDate |
1994 |
url |
https://hal.inrae.fr/hal-02715921 https://hal.inrae.fr/hal-02715921/document https://hal.inrae.fr/hal-02715921/file/Tang1994Aqua_1.pdf https://doi.org/10.1016/0044-8486(94)90007-8 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
ISSN: 0044-8486 EISSN: 1873-5622 Aquaculture https://hal.inrae.fr/hal-02715921 Aquaculture, 1994, 121 (1-3), pp.51-63. ⟨10.1016/0044-8486(94)90007-8⟩ https://www.journals.elsevier.com/aquaculture |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/0044-8486(94)90007-8 hal-02715921 https://hal.inrae.fr/hal-02715921 https://hal.inrae.fr/hal-02715921/document https://hal.inrae.fr/hal-02715921/file/Tang1994Aqua_1.pdf doi:10.1016/0044-8486(94)90007-8 PRODINRA: 110797 WOS: A1994NH41100006 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1016/0044-8486(94)90007-8 |
container_title |
Aquaculture |
container_volume |
121 |
container_issue |
1-3 |
container_start_page |
51 |
op_container_end_page |
63 |
_version_ |
1802642208942194688 |