scholarly journals Structural and compositional mismatch between captive and wild Atlantic salmon (Salmo salar) parrs’ gut microbiota highlights the relevance of integrating molecular ecology for management and conservation methods

2018 ◽  
Vol 11 (9) ◽  
pp. 1671-1685 ◽  
Author(s):  
Camille Lavoie ◽  
Maxime Courcelle ◽  
Baptise Redivo ◽  
Nicolas Derome
Keyword(s):  
Atlantic Salmon ◽  
Gut Microbiota ◽  
Salmo Salar ◽  
Molecular Ecology ◽  
Atlantic Salmon Salmo Salar ◽  
Management And Conservation

Atlantic Salmon (Salmo salar L., 1758) Gut Microbiota Profile Correlates with Flesh Pigmentation: Cause or Effect?

2020 ◽  
Vol 22 (6) ◽  
pp. 786-804 ◽  
Author(s):  
Chan D. H. Nguyen ◽  
Gianluca Amoroso ◽  
Tomer Ventura ◽  
Jeremiah J. Minich ◽  
Abigail Elizur
Keyword(s):  
Atlantic Salmon ◽  
Gut Microbiota ◽  
Salmo Salar ◽  
Atlantic Salmon Salmo Salar

Fermented Soybean Meal Increases Lactic Acid Bacteria in Gut Microbiota of Atlantic Salmon (Salmo salar)

2017 ◽  
Vol 10 (3) ◽  
pp. 566-576 ◽  
Author(s):  
Natalia Catalán ◽  
Alejandro Villasante ◽  
Jurij Wacyk ◽  
Carolina Ramírez ◽  
Jaime Romero
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Atlantic Salmon ◽  
Gut Microbiota ◽  
Salmo Salar ◽  
Soybean Meal ◽  
Fermented Soybean Meal ◽  
Fermented Soybean ◽  
Atlantic Salmon Salmo Salar

The status of Atlantic salmon (Salmo salar): populations and habitats

2004 ◽  
Vol 61 (12) ◽  
pp. 2267-2270 ◽  
Author(s):  
Daniel Boisclair
Keyword(s):  
Atlantic Salmon ◽  
Salmo Salar ◽  
Management Practices ◽  
Current Knowledge ◽  
Limiting Factors ◽  
Flow Conditions ◽  
Atlantic Salmon Salmo Salar ◽  
Nursery Habitats ◽  
The Status ◽  
Management And Conservation

The important decline of Atlantic salmon (Salmo salar) across its range during the past three decades, despite numerous management and conservation programmes, is an alarming index of the vulnerability of this species. The following series of papers was produced to summarize current knowledge on specific interactions between biotic and abiotic variables that may contribute to determine the survival of Atlantic salmon. Evaluation of the challenges encountered in spawning grounds (siltation, oxygenation), nursery habitats (substrate, trophic interactions), overwintering habitats (flow conditions, winter feeding opportunities), and coastal and oceanic environments (water temperature, predators, parasites) suggest that all habitats required by Atlantic salmon and all processes that occur in each habitat represent a critical link that allows this species to persist. Management practices employed during artificial fish selection, incubation, and stocking also affect the success of restoration efforts. Because limiting factors may change in time and because our ability to intervene in specific habitats may be minimal, the only strategy within our reach may be to continue gathering information about processes that determine the fragility of Atlantic salmon and, in the light of our findings, to implement scientifically sound actions where and when possible.

scholarly journals Effect of Dietary Carbohydrate-to-Protein Ratio on Gut Microbiota in Atlantic Salmon (Salmo salar)

Animals ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 89 ◽  
Author(s):  
Alejandro Villasante ◽  
Carolina Ramírez ◽  
Natalia Catalán ◽  
Rafael Opazo ◽  
Patricio Dantagnan ◽  
...  
Keyword(s):  
Atlantic Salmon ◽  
Gut Microbiota ◽  
Salmo Salar ◽  
High Throughput Sequencing ◽  
Wheat Starch ◽  
Rrna Gene ◽  
Protein Ratio ◽  
Distal Intestine ◽  
High Carbohydrate ◽  
Atlantic Salmon Salmo Salar

Atlantic salmon (Salmo salar) is a carnivorous fish species whose productive performance tends to be suboptimal when fed low-cost carbohydrate rich meals. It is of interest to study the dynamics of gut microbiota communities in salmonids fed high carbohydrate diets since gut microbes are referred to as key players that influence the metabolism and physiology of the host. A study was conducted to determine the effect of feeding a high carbohydrate diet to Atlantic salmon in gut microbiota communities. A medium carbohydrate (15% wheat starch)/medium protein (MC/MP) diet or a high carbohydrate (30% wheat starch)/low protein (HC/LP) diet was fed to triplicate tanks (28 fish each) during four weeks. We conducted an in-depth characterization of the distal intestine digesta microbiota using high-throughput sequencing of the V4 region of the 16S rRNA gene. Firmicutes, Actinobacteria and Proteobacteria were the major phyla determined in either experimental group. Phylum Planctomycetes, class Planctomycetia, order Planctomycetales and genus Lactococcus were significantly more abundant in fish fed the HC/LP diet compared with fish fed the MC/MP diet. Our study suggests feeding a carbohydrate rich meal to salmon exerts a low impact on the structure of gut microbial communities, affecting mostly low-abundance bacteria capable of metabolizing anaerobically carbohydrates as a major energy-yielding substrate.

scholarly journals Assessing the Pyloric Caeca and Distal Gut Microbiota Correlation with Flesh Color in Atlantic Salmon (Salmo salar L., 1758)

2020 ◽  
Vol 8 (8) ◽  
pp. 1244
Author(s):  
Chan D. H. Nguyen ◽  
Gianluca Amoroso ◽  
Tomer Ventura ◽  
Abigail Elizur
Keyword(s):  
Atlantic Salmon ◽  
Gut Microbiota ◽  
Salmo Salar ◽  
Pathogenic Bacteria ◽  
Diversity Index ◽  
Market Price ◽  
Economic Losses ◽  
Flesh Color ◽  
Pyloric Caeca ◽  
Atlantic Salmon Salmo Salar

The Atlantic salmon (Salmo salar L., 1758) is a temperate fish species native to the northern Atlantic Ocean. The distinctive pink–red flesh color (i.e., pigmentation) significantly affects the market price. Flesh paleness leads to customer dissatisfaction, a loss of competitiveness, a drop in product value and, consequently, severe economic losses. This work extends our knowledge on salmonid carotenoid dynamics to include the interaction between the gut microbiota and flesh color. A significant association between the flesh color and abundance of specific bacterial communities in the gut microbiota suggests that color may be affected either by seeding resilient beneficial bacteria or by inhibiting the negative effect of pathogenic bacteria. We sampled 96 fish, which covered all phenotypes of flesh color, including the average color and the evenness of color of different areas of the fillet, at both the distal intestine and the pyloric caeca of each individual, followed by 16S rRNA sequencing at the V3-V4 region. The microbiota profiles of these two gut regions were significantly different; however, there was a consistency in the microbiota, which correlated with the flesh color. Moreover, the pyloric caeca microbiota also showed high correlation with the evenness of the flesh color (beta diversity index, PERMANOVA, p = 0.002). The results from the pyloric caeca indicate that Carnobacterium, a group belonging to the lactic acid bacteria, is strongly related to the flesh color and the evenness of the color between the flesh areas.

scholarly journals A high-resolution map of the gut microbiota in Atlantic salmon (Salmo salar): A basis for comparative gut microbial research

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Karina Gajardo ◽  
Ana Rodiles ◽  
Trond M. Kortner ◽  
Åshild Krogdahl ◽  
Anne Marie Bakke ◽  
...  
Keyword(s):  
High Resolution ◽  
Atlantic Salmon ◽  
Gut Microbiota ◽  
Salmo Salar ◽  
Atlantic Salmon Salmo Salar ◽  
High Resolution Map ◽  
Resolution Map
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