The Interannual Variability of the Fall Size of Young-of-The-Year Chub (Squalius cephalus): Influence of Phenology, Growth Patterns and Abiotic Factors
Long-term surveys confirm the rapidity of environmental and biological changes undergone by endangered species but that also concerned relatively “tolerant” species, especially common rheophilic species such as European chub (Squalius cephalus, Linnaeus 1758). As many organisms, fish are highly vuln...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Frontiers Media S.A.
2021-12-01
|
| Series: | Frontiers in Environmental Science |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fenvs.2021.784751/full |
| _version_ | 1818459093388492800 |
|---|---|
| author | Maxime Logez Maxime Logez Bernadette Bounket Pierre Gibert Georges Carrel Virginie Diouloufet Xavier Colombet Fabien Morat Fabien Morat |
| author_facet | Maxime Logez Maxime Logez Bernadette Bounket Pierre Gibert Georges Carrel Virginie Diouloufet Xavier Colombet Fabien Morat Fabien Morat |
| author_sort | Maxime Logez |
| collection | DOAJ |
| description | Long-term surveys confirm the rapidity of environmental and biological changes undergone by endangered species but that also concerned relatively “tolerant” species, especially common rheophilic species such as European chub (Squalius cephalus, Linnaeus 1758). As many organisms, fish are highly vulnerable during their first life stages. Body size is a determinant factor for ecosystem functioning and for fish to survive to predators or to winter conditions. While numerous studies has already demonstrated the large variability of autumnal size of fish hatched during the year, few have focused on the factors explaining these interannual variations and on the growth patterns underlying these distributions. Using otoliths of young-of-the-year (YOY), we studied how the interannual variability in fall sizes of chub might be related to varying phenology, temperature, hydrology and growth patterns. YOY were sampled in three sections of the same reach of the Rhône River with contrasted hydrological regime: an artificial deep lotic channel (the tailrace of Bollène), a bypassed section with both lotic and lentic areas (former river channel before dam construction) and a reservoir with lentic deep waters. Sampling was performed on each sector during two thermally distinct years. Temperature had an important effect on both phenology and growth rate but it was not expressed similarly among river sections. Fish hatched earlier in the warmer year. Fish sizes were positively correlated with growing degree-days, but with distinct relationships between years and sections. The growth was faster in the warmer year, and in the warmer section, but differences in growth patterns varied between sections. In the bypassed section, the difference was slight, almost not significant, even if temperatures were very different between the 2 years considered. Autumnal variations in size could be explained either by an earlier phenology or by a faster growth due to higher temperatures occurring during the final part of the growing period. Our results were in accordance with general theory’s predictions relating individual growth to temperature, but they also showed that other factors might mitigate the influence of temperature on fish early life stages. |
| first_indexed | 2024-12-14T23:08:52Z |
| format | Article |
| id | doaj.art-2d21c88066574b82ac9f7a79f4a32a29 |
| institution | Directory Open Access Journal |
| issn | 2296-665X |
| language | English |
| last_indexed | 2024-12-14T23:08:52Z |
| publishDate | 2021-12-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Environmental Science |
| spelling | doaj.art-2d21c88066574b82ac9f7a79f4a32a292022-12-21T22:44:15ZengFrontiers Media S.A.Frontiers in Environmental Science2296-665X2021-12-01910.3389/fenvs.2021.784751784751The Interannual Variability of the Fall Size of Young-of-The-Year Chub (Squalius cephalus): Influence of Phenology, Growth Patterns and Abiotic FactorsMaxime Logez0Maxime Logez1Bernadette Bounket2Pierre Gibert3Georges Carrel4Virginie Diouloufet5Xavier Colombet6Fabien Morat7Fabien Morat8INRAE, RECOVER, Aix Marseille Univ, Aix-en-Provence, FranceINRAE, UR RiverLy, Villeurbanne Cedex, FranceINRAE, RECOVER, Aix Marseille Univ, Aix-en-Provence, FranceINRAE, RECOVER, Aix Marseille Univ, Aix-en-Provence, FranceINRAE, RECOVER, Aix Marseille Univ, Aix-en-Provence, FranceINRAE, RECOVER, Aix Marseille Univ, Aix-en-Provence, FranceINRAE, RECOVER, Aix Marseille Univ, Aix-en-Provence, FrancePSL Research University: EPHE-UPVD-CNRS, USR 3278 CRIOBE, Université de Perpignan, Perpignan, FranceLaboratoire d’Excellence Corail, Perpignan, FranceLong-term surveys confirm the rapidity of environmental and biological changes undergone by endangered species but that also concerned relatively “tolerant” species, especially common rheophilic species such as European chub (Squalius cephalus, Linnaeus 1758). As many organisms, fish are highly vulnerable during their first life stages. Body size is a determinant factor for ecosystem functioning and for fish to survive to predators or to winter conditions. While numerous studies has already demonstrated the large variability of autumnal size of fish hatched during the year, few have focused on the factors explaining these interannual variations and on the growth patterns underlying these distributions. Using otoliths of young-of-the-year (YOY), we studied how the interannual variability in fall sizes of chub might be related to varying phenology, temperature, hydrology and growth patterns. YOY were sampled in three sections of the same reach of the Rhône River with contrasted hydrological regime: an artificial deep lotic channel (the tailrace of Bollène), a bypassed section with both lotic and lentic areas (former river channel before dam construction) and a reservoir with lentic deep waters. Sampling was performed on each sector during two thermally distinct years. Temperature had an important effect on both phenology and growth rate but it was not expressed similarly among river sections. Fish hatched earlier in the warmer year. Fish sizes were positively correlated with growing degree-days, but with distinct relationships between years and sections. The growth was faster in the warmer year, and in the warmer section, but differences in growth patterns varied between sections. In the bypassed section, the difference was slight, almost not significant, even if temperatures were very different between the 2 years considered. Autumnal variations in size could be explained either by an earlier phenology or by a faster growth due to higher temperatures occurring during the final part of the growing period. Our results were in accordance with general theory’s predictions relating individual growth to temperature, but they also showed that other factors might mitigate the influence of temperature on fish early life stages.https://www.frontiersin.org/articles/10.3389/fenvs.2021.784751/fullLeuciscidaelogistic modeltemperaturehatchingotolithslarge regulated river |
| spellingShingle | Maxime Logez Maxime Logez Bernadette Bounket Pierre Gibert Georges Carrel Virginie Diouloufet Xavier Colombet Fabien Morat Fabien Morat The Interannual Variability of the Fall Size of Young-of-The-Year Chub (Squalius cephalus): Influence of Phenology, Growth Patterns and Abiotic Factors Frontiers in Environmental Science Leuciscidae logistic model temperature hatching otoliths large regulated river |
| title | The Interannual Variability of the Fall Size of Young-of-The-Year Chub (Squalius cephalus): Influence of Phenology, Growth Patterns and Abiotic Factors |
| title_full | The Interannual Variability of the Fall Size of Young-of-The-Year Chub (Squalius cephalus): Influence of Phenology, Growth Patterns and Abiotic Factors |
| title_fullStr | The Interannual Variability of the Fall Size of Young-of-The-Year Chub (Squalius cephalus): Influence of Phenology, Growth Patterns and Abiotic Factors |
| title_full_unstemmed | The Interannual Variability of the Fall Size of Young-of-The-Year Chub (Squalius cephalus): Influence of Phenology, Growth Patterns and Abiotic Factors |
| title_short | The Interannual Variability of the Fall Size of Young-of-The-Year Chub (Squalius cephalus): Influence of Phenology, Growth Patterns and Abiotic Factors |
| title_sort | interannual variability of the fall size of young of the year chub squalius cephalus influence of phenology growth patterns and abiotic factors |
| topic | Leuciscidae logistic model temperature hatching otoliths large regulated river |
| url | https://www.frontiersin.org/articles/10.3389/fenvs.2021.784751/full |
| work_keys_str_mv | AT maximelogez theinterannualvariabilityofthefallsizeofyoungoftheyearchubsqualiuscephalusinfluenceofphenologygrowthpatternsandabioticfactors AT maximelogez theinterannualvariabilityofthefallsizeofyoungoftheyearchubsqualiuscephalusinfluenceofphenologygrowthpatternsandabioticfactors AT bernadettebounket theinterannualvariabilityofthefallsizeofyoungoftheyearchubsqualiuscephalusinfluenceofphenologygrowthpatternsandabioticfactors AT pierregibert theinterannualvariabilityofthefallsizeofyoungoftheyearchubsqualiuscephalusinfluenceofphenologygrowthpatternsandabioticfactors AT georgescarrel theinterannualvariabilityofthefallsizeofyoungoftheyearchubsqualiuscephalusinfluenceofphenologygrowthpatternsandabioticfactors AT virginiediouloufet theinterannualvariabilityofthefallsizeofyoungoftheyearchubsqualiuscephalusinfluenceofphenologygrowthpatternsandabioticfactors AT xaviercolombet theinterannualvariabilityofthefallsizeofyoungoftheyearchubsqualiuscephalusinfluenceofphenologygrowthpatternsandabioticfactors AT fabienmorat theinterannualvariabilityofthefallsizeofyoungoftheyearchubsqualiuscephalusinfluenceofphenologygrowthpatternsandabioticfactors AT fabienmorat theinterannualvariabilityofthefallsizeofyoungoftheyearchubsqualiuscephalusinfluenceofphenologygrowthpatternsandabioticfactors AT maximelogez interannualvariabilityofthefallsizeofyoungoftheyearchubsqualiuscephalusinfluenceofphenologygrowthpatternsandabioticfactors AT maximelogez interannualvariabilityofthefallsizeofyoungoftheyearchubsqualiuscephalusinfluenceofphenologygrowthpatternsandabioticfactors AT bernadettebounket interannualvariabilityofthefallsizeofyoungoftheyearchubsqualiuscephalusinfluenceofphenologygrowthpatternsandabioticfactors AT pierregibert interannualvariabilityofthefallsizeofyoungoftheyearchubsqualiuscephalusinfluenceofphenologygrowthpatternsandabioticfactors AT georgescarrel interannualvariabilityofthefallsizeofyoungoftheyearchubsqualiuscephalusinfluenceofphenologygrowthpatternsandabioticfactors AT virginiediouloufet interannualvariabilityofthefallsizeofyoungoftheyearchubsqualiuscephalusinfluenceofphenologygrowthpatternsandabioticfactors AT xaviercolombet interannualvariabilityofthefallsizeofyoungoftheyearchubsqualiuscephalusinfluenceofphenologygrowthpatternsandabioticfactors AT fabienmorat interannualvariabilityofthefallsizeofyoungoftheyearchubsqualiuscephalusinfluenceofphenologygrowthpatternsandabioticfactors AT fabienmorat interannualvariabilityofthefallsizeofyoungoftheyearchubsqualiuscephalusinfluenceofphenologygrowthpatternsandabioticfactors |