Fish Gut Microbiome: A Primer to an Emerging Discipline in the Fisheries Sciences

Gallo, Benjamin D.; Farrell, John M.; Leydet, Brian F.

doi:10.1002/fsh.10379

Cited by 18 publications

(9 citation statements)

References 117 publications

(118 reference statements)

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“…In recent years, gut microbiome has been shown to have a determining role in animal health and welfare, particularly in the development and maturation of the mucosa, immunity and disease resistance [ 27 , 60 , 61 ]. On the one hand, diet and feed additives are known to exert selective pressure on the gastrointestinal microbial composition in vertebrates, including fish [ 29 , 61 ].…”

Section: Discussionmentioning

confidence: 99%

Fish Microbiome Modulation and Convenient Storage of Aquafeeds When Supplemented with Vitamin K1

Acosta

Quiroz‐Guzmán

Tovar‐Ramírez

et al. 2022

Animals

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Vitamin K (VK) is a fat-soluble vitamin necessary for fish metabolism and health. VK stability as dietary component during aquafeed storage and its potential effect on intestinal microbiome in fish have not yet been completely elucidated. The convenient storage conditions of aquafeeds when supplemented with phylloquinone (VK1), as well as its potential effects on the gut microbiota of Senegalese sole (Solea senegalensis) juveniles, have been explored. Experimental feeds were formulated to contain 0, 250 and 1250 mg kg−1 of VK1 and were stored at different temperatures (4, −20 or −80 °C). VK stability was superior at −20 °C for short-term (7 days) storage, while storing at −80 °C was best suited for long-term storage (up to 3 months). A comparison of bacterial communities from Senegalese sole fed diets containing 0 or 1250 mg kg−1 of VK1 showed that VK1 supplementation decreased the abundance of the Vibrio, Pseudoalteromonas, and Rhodobacterace families. All these microorganisms were previously associated with poor health status in aquatic organisms. These results contribute not only to a greater understanding of the physiological effects of vitamin K, particularly through fish intestinal microbiome, but also establish practical guidelines in the industry for proper aquafeed storage when supplemented with VK1.

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Section: Discussionmentioning

confidence: 99%

Fish Microbiome Modulation and Convenient Storage of Aquafeeds When Supplemented with Vitamin K1

Acosta

Quiroz‐Guzmán

Tovar‐Ramírez

et al. 2022

Animals

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“…The fish gut microbiome is increasingly used to elucidate fish condition 15 , response to environmental conditions 16 and changing diet 17 , 18 and has been extensively reviewed elsewhere 15 , 19 , 20 . It is a tantalising goal to use the information yielded by microbial ecology to manipulate a particular fish species’ gut microbiome for improved welfare and growth in a commercial setting.…”

Section: Introductionmentioning

confidence: 99%

Drivers of ecological assembly in the hindgut of Atlantic Cod fed a macroalgal supplemented diet

Keating

Bolton‐Warberg

Hinchcliffe

et al. 2022

npj Biofilms Microbiomes

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It is difficult to disentangle the many variables (e.g. internal or external cues and random events) that shape the microbiota in the gastrointestinal tract of any living species. Ecological assembly processes applied to microbial communities can elucidate these drivers. In our study, farmed Atlantic cod (Gadus morhua) were fed a diet of 10% macroalgae supplement (Ulva rigida [ULVA] or Ascophyllum nodosum [ASCO] or a non-supplemented control diet [CTRL]) over 12 weeks. We determined the influence of ecological assembly processes using a suite of null-modelling tools. We observed dissimilarity in the abundance of common OTUs over time, which was driven by deterministic assembly. The CTRL samples showed selection as a critical assembly process. While dispersal limitation was a driver of the gut microbiome for fish fed the macroalgae supplemented diet at Week 12 (i.e., ASCO and ULVA). Fish from the ASCO grouping diverged into ASCO_N (normal) and ASCO_LG (lower growth), where ASCO_LG individuals found the diet unpalatable. The recruitment of new taxa overtime was altered in the ASCO_LG fish, with the gut microbiome showing phylogenetic underdispersion (nepotistic species recruitment). Finally, the gut microbiome (CTRL and ULVA) showed increasing robustness to taxonomic disturbance over time and lower functional redundancy. This study advances our understanding of the ecological assembly and succession in the hindgut of juvenile Atlantic cod across dietary treatments. Understanding the processes driving ecological assembly in the gut microbiome, in fish research specifically, could allow us to manipulate the microbiome for improved health or resilience to disease for improved aquaculture welfare and production.

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“…While many different aspects influence the gut microbiome of fishes, environmental factors, feeding habits, and genetics are considered to be the most influential [ 17 ]. The composition of gut microbial communities also significantly changes as fish age, specifically with regards to intestinal morphology [ 18 ].…”

Section: Introductionmentioning

confidence: 99%

Does Exposure of Broodstock to Dietary Soybean Meal Affect Its Utilization in the Offspring of Zebrafish (Danio rerio)?

Kwasek

Patula

Wojno

et al. 2022

Animals

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Nutritional programming (NP) is a concept in which early nutritional events alter the physiology of an animal and its response to different dietary regimes later in life. The objective of this study was to determine if NP via broodstock with dietary plant protein (PP) has any effect on the gut microbiome of the progeny fish and whether this modified gut microbiome leads to better utilization of PP diet. The experiment consisted of four different treatments as follows: (1) progeny that received FM diet obtained from fishmeal (FM)-fed broodstock (FMBS-FM, +control); (2) progeny that received PP diet obtained from FM-fed parents (FMBS-PP); (3) progeny that received PP diet obtained from “nutritionally programmed” parents (PPBS-PP; −control); and (4) progeny that received FM diet obtained from “nutritionally programmed” parents (PPBS-FM). Zebrafish was used as a model species. This study found that parental programming seems to have some positive effect on dietary PP utilization in progeny. However, the influence of NP with PP through broodstock on gut microbiota of the offspring fish was not detected.

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Fish Gut Microbiome: A Primer to an Emerging Discipline in the Fisheries Sciences

Cited by 18 publications

References 117 publications

Fish Microbiome Modulation and Convenient Storage of Aquafeeds When Supplemented with Vitamin K1

Fish Microbiome Modulation and Convenient Storage of Aquafeeds When Supplemented with Vitamin K1

Drivers of ecological assembly in the hindgut of Atlantic Cod fed a macroalgal supplemented diet

Does Exposure of Broodstock to Dietary Soybean Meal Affect Its Utilization in the Offspring of Zebrafish (Danio rerio)?

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