Establishment, maintenance and modifications of the lower jaw dentition of wild Atlantic salmon (Salmo salar L.) throughout its life cycle
In this paper we elucidate the pattern of initiation of the first teeth and the pattern of tooth replacement on the dentary of wild Atlantic salmon (Salmo salar L.), throughout nearly all stages of its life cycle, using serially sectioned heads and jaws, cleared and stained animals, and X-rays. The...
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ftunivgent:oai:archive.ugent.be:419092 2023-06-11T04:10:17+02:00 Establishment, maintenance and modifications of the lower jaw dentition of wild Atlantic salmon (Salmo salar L.) throughout its life cycle Huysseune, Ann Hall, Brian K Witten, Paul Eckhard 2007 application/pdf https://biblio.ugent.be/publication/419092 http://hdl.handle.net/1854/LU-419092 https://doi.org/10.1111/j.1469-7580.2007.00788.x https://biblio.ugent.be/publication/419092/file/8653409 eng eng https://biblio.ugent.be/publication/419092 http://hdl.handle.net/1854/LU-419092 http://dx.doi.org/10.1111/j.1469-7580.2007.00788.x https://biblio.ugent.be/publication/419092/file/8653409 No license (in copyright) info:eu-repo/semantics/restrictedAccess JOURNAL OF ANATOMY ISSN: 0021-8782 Biology and Life Sciences dentition odontogenesis salmon life cycle salmon skeleton tooth replacement ZEBRAFISH DANIO-RERIO TELEOST FISH BONE TEETH SHAPE CYPRINIDAE EVOLUTION GAIRDNERI CICHLIDAE journalArticle info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2007 ftunivgent https://doi.org/10.1111/j.1469-7580.2007.00788.x 2023-05-10T22:33:01Z In this paper we elucidate the pattern of initiation of the first teeth and the pattern of tooth replacement on the dentary of wild Atlantic salmon (Salmo salar L.), throughout nearly all stages of its life cycle, using serially sectioned heads and jaws, cleared and stained animals, and X-rays. The dentary teeth are set in one row. Tooth germs appear around hatching, first in odd positions, followed by even positions. From position 8 further backwards, teeth are added in adjacent positions. The first replacement teeth appear in animals of about 30 mm fork length. On the dentary of early life stages (alevins and fry), every position in the tooth row holds a functional (i.e. attached and erupted) tooth and a replacement tooth. The alternating pattern set up anteriorly in the dentary by the first-generation teeth changes in juveniles (parr) whereby teeth are in a similar functional (for the erupted teeth) or developmental stage (for the replacement teeth) every three positions. This pattern is also observed in marine animals during their marine life phase and in both sexes of adult animals prior to spawning (grilse and salmon), but every position now holds either a functional tooth or a mineralised replacement tooth. This is likely due to the fact that replacement tooth germs have to grow to a larger size before mineralisation starts. In the following spring, the dentary tooth pattern of animals that have survived spawning (kelts) is highly variable. The abundance of functional teeth in post-spawning animals nevertheless indicates that teeth are not lost over winter. We confirm the earlier reported lack of evidence for the existence of an edentulous life phase, preceding the appearance of so-called breeding teeth during upstream migration to the spawning grounds, and consider breeding teeth to be just another tooth generation in a regularly replacing dentition. This study shows how Atlantic salmon maintains a functional adaptive dentition throughout its complex life cycle. Article in Journal/Newspaper Atlantic salmon Salmo salar Ghent University Academic Bibliography Tooth The ENVELOPE(168.983,168.983,-77.517,-77.517) Journal of Anatomy 0 0 070905003330001 ??? |
institution |
Open Polar |
collection |
Ghent University Academic Bibliography |
op_collection_id |
ftunivgent |
language |
English |
topic |
Biology and Life Sciences dentition odontogenesis salmon life cycle salmon skeleton tooth replacement ZEBRAFISH DANIO-RERIO TELEOST FISH BONE TEETH SHAPE CYPRINIDAE EVOLUTION GAIRDNERI CICHLIDAE |
spellingShingle |
Biology and Life Sciences dentition odontogenesis salmon life cycle salmon skeleton tooth replacement ZEBRAFISH DANIO-RERIO TELEOST FISH BONE TEETH SHAPE CYPRINIDAE EVOLUTION GAIRDNERI CICHLIDAE Huysseune, Ann Hall, Brian K Witten, Paul Eckhard Establishment, maintenance and modifications of the lower jaw dentition of wild Atlantic salmon (Salmo salar L.) throughout its life cycle |
topic_facet |
Biology and Life Sciences dentition odontogenesis salmon life cycle salmon skeleton tooth replacement ZEBRAFISH DANIO-RERIO TELEOST FISH BONE TEETH SHAPE CYPRINIDAE EVOLUTION GAIRDNERI CICHLIDAE |
description |
In this paper we elucidate the pattern of initiation of the first teeth and the pattern of tooth replacement on the dentary of wild Atlantic salmon (Salmo salar L.), throughout nearly all stages of its life cycle, using serially sectioned heads and jaws, cleared and stained animals, and X-rays. The dentary teeth are set in one row. Tooth germs appear around hatching, first in odd positions, followed by even positions. From position 8 further backwards, teeth are added in adjacent positions. The first replacement teeth appear in animals of about 30 mm fork length. On the dentary of early life stages (alevins and fry), every position in the tooth row holds a functional (i.e. attached and erupted) tooth and a replacement tooth. The alternating pattern set up anteriorly in the dentary by the first-generation teeth changes in juveniles (parr) whereby teeth are in a similar functional (for the erupted teeth) or developmental stage (for the replacement teeth) every three positions. This pattern is also observed in marine animals during their marine life phase and in both sexes of adult animals prior to spawning (grilse and salmon), but every position now holds either a functional tooth or a mineralised replacement tooth. This is likely due to the fact that replacement tooth germs have to grow to a larger size before mineralisation starts. In the following spring, the dentary tooth pattern of animals that have survived spawning (kelts) is highly variable. The abundance of functional teeth in post-spawning animals nevertheless indicates that teeth are not lost over winter. We confirm the earlier reported lack of evidence for the existence of an edentulous life phase, preceding the appearance of so-called breeding teeth during upstream migration to the spawning grounds, and consider breeding teeth to be just another tooth generation in a regularly replacing dentition. This study shows how Atlantic salmon maintains a functional adaptive dentition throughout its complex life cycle. |
format |
Article in Journal/Newspaper |
author |
Huysseune, Ann Hall, Brian K Witten, Paul Eckhard |
author_facet |
Huysseune, Ann Hall, Brian K Witten, Paul Eckhard |
author_sort |
Huysseune, Ann |
title |
Establishment, maintenance and modifications of the lower jaw dentition of wild Atlantic salmon (Salmo salar L.) throughout its life cycle |
title_short |
Establishment, maintenance and modifications of the lower jaw dentition of wild Atlantic salmon (Salmo salar L.) throughout its life cycle |
title_full |
Establishment, maintenance and modifications of the lower jaw dentition of wild Atlantic salmon (Salmo salar L.) throughout its life cycle |
title_fullStr |
Establishment, maintenance and modifications of the lower jaw dentition of wild Atlantic salmon (Salmo salar L.) throughout its life cycle |
title_full_unstemmed |
Establishment, maintenance and modifications of the lower jaw dentition of wild Atlantic salmon (Salmo salar L.) throughout its life cycle |
title_sort |
establishment, maintenance and modifications of the lower jaw dentition of wild atlantic salmon (salmo salar l.) throughout its life cycle |
publishDate |
2007 |
url |
https://biblio.ugent.be/publication/419092 http://hdl.handle.net/1854/LU-419092 https://doi.org/10.1111/j.1469-7580.2007.00788.x https://biblio.ugent.be/publication/419092/file/8653409 |
long_lat |
ENVELOPE(168.983,168.983,-77.517,-77.517) |
geographic |
Tooth The |
geographic_facet |
Tooth The |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
JOURNAL OF ANATOMY ISSN: 0021-8782 |
op_relation |
https://biblio.ugent.be/publication/419092 http://hdl.handle.net/1854/LU-419092 http://dx.doi.org/10.1111/j.1469-7580.2007.00788.x https://biblio.ugent.be/publication/419092/file/8653409 |
op_rights |
No license (in copyright) info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1111/j.1469-7580.2007.00788.x |
container_title |
Journal of Anatomy |
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0 |
container_issue |
0 |
container_start_page |
070905003330001 |
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1768384603415904256 |