Microbiota of common snook <i>Centropomus undecimalis</i>
 larvae exhibiting high mortality

Tarnecki, Andrea M.; Rhody, Nicole R.

doi:10.1111/are.13377

Cited by 8 publications

(9 citation statements)

References 44 publications

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“…Proteobacteria dominates the core microbiota of fishes [ 9 , 10 , 31 , 38 , 40 ] suggesting an important relationship between this taxon and its hosts. Juvenile common snook share members of their core microbiota, including Vibrio and Ruegeria , with larval common snook [ 41 ], but other members were unique to juveniles, illustrating differences between snook microbiota among developmental stages. Members of the genera Vibrio , Photobacterium , and Psychrobacter are normal inhabitants of marine fish skin [ 31 , 42 , 43 ].…”

Section: Discussionmentioning

confidence: 99%

Shifts in the Skin-Associated Microbiota of Hatchery-Reared Common Snook Centropomus undecimalis During Acclimation to the Wild

et al. 2018

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The skin-associated microbiota of fish competes against pathogens for space and nutrients, preventing colonization by harmful bacteria encountered during environmental transitions such as those faced during stock enhancement. Thus, alterations in bacterial community structure during release of cultured fish have important implications for health of these individuals. This study investigated microbiota structure during acclimation of juvenile hatchery-reared common snook Centropomus undecimalis to the wild by comparing skin-associated microflora among snook in captivity, after 48 h of acclimation at release sites, and from the wild. After two days of acclimation, the microbiota of hatchery-reared snook mirrored that observed on wild snook. Relative abundances of potential pathogens were higher in captive fish, whereas acclimated and wild fish harbored bacterial taxa influenced by geographical factors and water quality at release sites. Predicted microbiota function of acclimated and wild fish showed higher production of protective amino acids and antimicrobials, identifying a mechanism for microbial supplementation of the immune defense of these fish. The two-day transition to wild-type microbiota suggests a temporal scale of hours associated with bacterial succession indicating that the microbiota, whose structure is vital to fish health, aids in acclimation of fish to new environments during stock enhancement efforts.

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Section: Discussionmentioning

confidence: 99%

Shifts in the Skin-Associated Microbiota of Hatchery-Reared Common Snook Centropomus undecimalis During Acclimation to the Wild

et al. 2018

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“…Indeed, Bacillus probiotics are reported to suppress fish pathogens including Vibrios 12 , 32 . Vibrios were consistently present in relatively high abundances within our systems, and these bacteria are commonly reported as a dominant component of the fish larval microbiota after the start of exogenous feeding 14 , 33 , 34 ; thus a majority of the organisms within this taxon are likely commensal or perhaps mutualistic. Unfortunately, 16S rRNA sequencing is not sufficient to classify some members of the Vibrionaceae to the species or strain level 35 and future studies investigating the influence of Vibrios on larval survival should use techniques capable of distinguishing pathogenic species.…”

Section: Discussionmentioning

confidence: 70%

“…In Trial 1, 16S MetaVx™ Mammalian sequencing was performed across the V3 and V4 hypervariable regions using proprietary primers and PCR protocols at GENEWIZ, Inc. (South Plainfield, NJ). In Trial 2, the bacterial 16S rRNA genes (V4 variable region) were amplified as previously described 14 . Sequence data from both trials were processed according to the MiSeq Illumina SOP protocol using Mothur v.1.35.1 19 , removing sequences less than 150 base pairs.…”

Section: Methodsmentioning

confidence: 99%

“…Currently, snook production in the US is focused on fisheries restoration efforts to restore stock losses due to overfishing, weather phenomenon (i.e., cold temperatures), and habitat loss 13 . However, as with other marine species, high mortality in the first 30 days post hatch continues to be a major bottleneck in snook aquaculture production 14 .…”

Section: Introductionmentioning

confidence: 99%

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Benefits of a Bacillus probiotic to larval fish survival and transport stress resistance

Tarnecki

Wafapoor

Phillips

et al. 2019

Sci Rep

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The need for sustainable bacterial management approaches in aquaculture is crucial for advancement of the industry. Probiotics are a promising strategy as evidenced by benefits demonstrated in intensive larviculture of various marine fish species. In this study we investigate the effects of a mixed Bacillus species (B. licheniformis and B. amyloliquefaciens) probiotic on rearing of larval common snook (Centropomus undecimalis). Experimental treatments included (1) probiotics supplemented to the water and live feed, (2) probiotics supplemented to the water only, and (3) no probiotic controls. Data from two separate trials indicated up to 2.5 times higher survival with probiotic addition, as well as 20% higher survival 7 days following a transport event. These benefits were not explained by faster growth, measured water quality parameters, or innate immune enzyme activities. Microbiota analysis indicated the importance of system stabilization prior to larval stocking to improve rearing success and probiotic performance. ied Potential probiotic benefits include accelerated gastrointestinal tract development, enhanced immunity, inhibition of opportunistic bacteria, and improvements to water quality parameters. Results suggest this probiotic should be tested in other marine fish species in order to reduce larval rearing bottlenecks.

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“…The Vibrio alginolyticus isolated probiotics in shrimp hatcheries have been used successfully from earlier [15]. It has resulted that, probiotics treatments can be effective in growth performance, disease control, spawning, gut activity, and hematological parameters in different fishes such as sea bass [16], rainbow trout [17], snook [18,19], sturgeon [12], and shrimp [20]. This is very important to have brief knowledge about the selection of probionts, use of probiotics, mode of action, safety guideline as well as their characterization [21].…”

Section: Introductionmentioning

confidence: 99%

Impacts of probiotics on feeding technology and its application in aquaculture

Hosain¹,

Xue²

2020

SDRP-JAFFS

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Microbiota of common snook Centropomus undecimalis larvae exhibiting high mortality

Cited by 8 publications

References 44 publications

Shifts in the Skin-Associated Microbiota of Hatchery-Reared Common Snook Centropomus undecimalis During Acclimation to the Wild

Shifts in the Skin-Associated Microbiota of Hatchery-Reared Common Snook Centropomus undecimalis During Acclimation to the Wild

Benefits of a Bacillus probiotic to larval fish survival and transport stress resistance

Impacts of probiotics on feeding technology and its application in aquaculture

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