Cultivation of Brook Charr Salvelinus fontinalis: The Challenges of Disease Control and the Promise of Microbial Ecology Management DOI Creative Commons
Mousumi Sarker Chhanda, Nathalie R. Le François,

Lisa Zoé Auclert

et al.

Aquaculture Research, Journal Year: 2024, Volume and Issue: 2024(1)

Published: Jan. 1, 2024

Among salmonids, brook charr, Salvelinus fontinalis has been gaining popularity in aquaculture. However, major limitations associated with opportunistic diseases that result from unstable egg and fry‐rearing conditions are experienced under intensive rearing conditions. Great losses charr culture viral (e.g., infectious pancreatic necrosis, hemorrhagic septicemia virus), fungal saprolegniosis), bacterial furunculosis, cold water disease, columnaris) diseases. Unfortunately, there is no effective treatment for the chemical disinfectants antibiotics commonly used against infections reaching their limits (pathogen resistance, microbial community disruption), making alternative more sustainable approaches essential to bolster In this regard, recent studies show many species (bacteria, archaea, viruses, eukaryotes‐like protozoa, unicellular fungi) earliest life stages proper development growth of fish. Based on ecological theory work marine fish, it hypothesized current aquaculture practices favor r‐strategic, microbes detrimental fish health development. Consequently, ensure success sustainability farming, a new paradigm involving recirculating systems (RAS) select K‐enriched, specialized as preventive measure those very promising avenue. review, after introducing biology, role general problems disease low fry survival due an imbalance will be discussed. Various curative prophylactic methods currently control these impact ecology covered, we conclude rationale management its effectiveness promoting through prevention. To our knowledge, first literature review addressing promises managing way char industry.

Language: Английский

Thermal regime during parental sexual maturation, but not during offspring rearing, modulates DNA methylation in brook charr (Salvelinus fontinalis) DOI Creative Commons
Clare J. Venney, Kyle Wellband, Éric Normandeau

et al.

Proceedings of the Royal Society B Biological Sciences, Journal Year: 2022, Volume and Issue: 289(1974)

Published: May 4, 2022

Epigenetic inheritance can result in plastic responses to changing environments being faithfully transmitted offspring. However, it remains unclear how epigenetic mechanisms such as DNA methylation contribute multigenerational acclimation and adaptation environmental stressors. Brook charr ( Salvelinus fontinalis ), an economically important salmonid, is highly sensitive thermal stress of conservation concern the context climate change. We studied effects temperature during parental sexual maturation offspring rearing on whole-genome brook juveniles (fry). Parents were split between warm cold temperatures maturation, mated controlled breeding designs, then from each family (8°C) (5°C) environments. Using bisulfite sequencing, we found 188 differentially methylated regions (DMRs) due after controlling for structure. By contrast, had a negligible effect methylation. Stable intergenerational minimal plasticity progeny could transmission acclimatory states offspring, priming them warming environment. Our findings have implications pertaining role response ongoing

Language: Английский

Citations

24
How genomic and environmental relationships shape phenotypic plasticity in brook charr Salvelinus fontinalis: an historical review DOI Creative Commons
Céline Audet, Dany Garant, Amélie Crespel

et al.

Frontiers in Fish Science, Journal Year: 2025, Volume and Issue: 3

Published: Feb. 19, 2025

This review revisits 20 years of collaborative studies that were pursued with Louis Bernatchez who sadly passed away in October 2023. With him, we explored the phenotypic plasticity brook charr by combining ecophysiology, genetics, genomics, and more recently epigenetics. Over years, conducted extensive on charr, focusing metabolism, stress response, growth regulation, temperature tolerance across various strains. Our research highlighted remarkable diversity physiological responses to salinity conditions, along significant differences heritability key traits different strains life stages. We studied stages from yolk-sac fry reproductive adults, compared freshwater residents anadromous fish, showed how epigenetics affects transcriptomic progeny conditions. highlights incredible presents future avenues will lead a better understanding species may face challenges related global changes.

Language: Английский

Citations

0
Genetic and environmental basis of transcriptional thermal plasticity of brook charr (Salvelinus fontinalis) fry DOI
Ghizlane Banousse, Christina A. D. Semeniuk,

Dany Garant

et al.

Canadian Journal of Fisheries and Aquatic Sciences, Journal Year: 2025, Volume and Issue: 82, P. 1 - 15

Published: Jan. 1, 2025

Variation in transcriptomic responses is recognized as an underlying mechanism driving phenotypic to environmental variations. Whether this variation adaptive or maladaptive can have significant implications for the evolutionary trajectory of populations. Understanding inheritance transcriptional across generations, whether it genetic, non-genetic, both limited. To address knowledge gap, we assessed expression targeted genes brook charr fry ( Salvelinus fontinalis) reared at two different temperatures (5 and 8 °C) produced by breeders exposed either cold warm thermal regimes during final gonad maturation. Using a high-throughput OpenArray ® chip, measured relative 10 candidate associated with stress. Parental temperature affected SRY-box transcription factor 2, gene neurogenesis, Cholecystokinin neuropeptide Y genes, appetite regulation, regardless offspring-rearing temperature. Additive maternal, paternal effects were low, absence genotype × interactions indicating that factors may be more important shaping expression.

Language: Английский

Citations

0
Transgenerational effects on body size and survival in Brook charr (Salvelinus fontinalis) DOI Creative Commons
Carolyne Houle,

Philippine Gossieaux,

Louis Bernatchez

et al.

Evolutionary Applications, Journal Year: 2023, Volume and Issue: 16(5), P. 1061 - 1070

Published: May 1, 2023

Higher temperatures are now observed in several ecosystems and act as new selective agents that shape traits fitness of individuals. Transgenerational effects may be important modulating adaptation future generations buffering negative impacts temperature changes. The potential for these freshwater fish species, is a key abiotic component their environment. Yet, still, relatively few studies have assessed the presence importance transgenerational under natural conditions. purpose this study was to test how parental thermal conditions influenced offspring growth survival following stocking Brook charr (

Language: Английский

Citations

7
Metabolic and transcriptomic response of two juvenile anadromous brook charr (Salvelinus fontinalis) genetic lines towards a chronic thermal stress DOI

Christophe Jourdain-Bonneau,

David Deslauriers, Clémence Gourtay

et al.

Canadian Journal of Zoology, Journal Year: 2023, Volume and Issue: 101(12), P. 1063 - 1078

Published: June 26, 2023

Many salmonid species are particularly susceptible to chronic and acute temperature changes caused by global warming. We aimed study the differences in metabolic transcriptomic responses of a heat stress on control selected (absence early sexual maturation growth) line brook charr Salvelinus fontinalis (Mitchill, 1814). exposed individuals different temperatures for 35 days (15, 17, 19 °C). High reduced growth rate (in length) Fulton condition factor. Both maximal aerobic scope were higher fish reared at 17 °C, while they decreased maintained °C. The relative gene expression cytochrome c oxidase was lower °C than 15 expressions both liver gill hsp90 highest temperature. standard rate, not affected temperature, over line. Only line, catalase receptor insulin-like factor-1 increased Our results showed that able cope more effectively with oxidative rise

Language: Английский

Citations

2
Selection effects on early life history traits and thermal resistance in brook charr Salvelinus fontinalis DOI
Clémence Gourtay,

Marine Rivolet,

Léopold Ghinter

et al.

Canadian Journal of Zoology, Journal Year: 2023, Volume and Issue: 102(5), P. 429 - 442

Published: Nov. 24, 2023

In the context of climate change, it is crucial to understand whether animals that have been domesticated and (or) selected maintain their abilities adapt changes in thermal environment. Here, we tested how selection for absence early sexual maturation combined with better growth performance may impacted resistance gene expression response presence stress brook charr Salvelinus fontinalis (Mitchill, 1814). We performed temperature challenge tests on 0+ juveniles studied genes involved oxidative stress, synthesis heat shock proteins, or regulation apoptosis, heart liver tissues. Juveniles from lineage had a higher than controls loss equilibrium occurred average 1 °C above what was observed controls. The relative expressions catalase HSP70 were significantly program. Overall, thermally sensitive fish characterized by low mass length lower associated response. Our results indicate traits interests be indirectly related significant effect stages development.

Language: Английский

Citations

2
Cultivation of Brook Charr Salvelinus fontinalis: The Challenges of Disease Control and the Promise of Microbial Ecology Management DOI Creative Commons
Mousumi Sarker Chhanda, Nathalie R. Le François,

Lisa Zoé Auclert

et al.

Aquaculture Research, Journal Year: 2024, Volume and Issue: 2024(1)

Published: Jan. 1, 2024

Among salmonids, brook charr, Salvelinus fontinalis has been gaining popularity in aquaculture. However, major limitations associated with opportunistic diseases that result from unstable egg and fry‐rearing conditions are experienced under intensive rearing conditions. Great losses charr culture viral (e.g., infectious pancreatic necrosis, hemorrhagic septicemia virus), fungal saprolegniosis), bacterial furunculosis, cold water disease, columnaris) diseases. Unfortunately, there is no effective treatment for the chemical disinfectants antibiotics commonly used against infections reaching their limits (pathogen resistance, microbial community disruption), making alternative more sustainable approaches essential to bolster In this regard, recent studies show many species (bacteria, archaea, viruses, eukaryotes‐like protozoa, unicellular fungi) earliest life stages proper development growth of fish. Based on ecological theory work marine fish, it hypothesized current aquaculture practices favor r‐strategic, microbes detrimental fish health development. Consequently, ensure success sustainability farming, a new paradigm involving recirculating systems (RAS) select K‐enriched, specialized as preventive measure those very promising avenue. review, after introducing biology, role general problems disease low fry survival due an imbalance will be discussed. Various curative prophylactic methods currently control these impact ecology covered, we conclude rationale management its effectiveness promoting through prevention. To our knowledge, first literature review addressing promises managing way char industry.

Language: Английский

Citations

0