Graceline Tina Kirubakaran

Towards the Digital Salmon: From a reactive to a pre-emptive research strategy in aquaculture (DigiSal)

Salmon farming in the future must navigate conflicting and shifting demands of sustainability, shifting feed prices, disease, and product quality. The industry needs to develop a flexible, integrated basis of knowledge for rapid response to new challenges. Project DigiSal will lay the foundations for a Digital Salmon: an ensemble of mathematical descriptions of salmon physiology, combining ...

Salmon farmed on modern feeds contains less of the healthy, long-chain fatty acids (EPA and DHA) than before. Up until the turn of the millennium, farmed salmon were fed fish oil as a replacement for their omega-3 rich natural prey. However, fish oil is now a scarce resource, and more than half of the fat in modern feeds comes from plant oils that are inexpensive, but devoid of long-chain omega-3 fatty acids. How can we increase the omega-3 content of salmon on sustainable feeds?

One option is ...

Atlantic salmon is a main source of essential ω-3 long-chain polyunsaturated fatty acids (LC-PUFA) in many Western diets, especially eicosapentaenoic acid (20:5n-3, EPA) and docosahexaenoic acid (22:6n-3, DHA). However, farmed salmon meat now contains less healthy ω-3 fatty acids (FA) than before, due to the shift from marine to vegetable lipid feed sources. An important future aquaculture challenge is therefore to maintain a healthy and high EPA/DHA content when farmed salmon is fed a vegetable ...

16S rRNA amplicon sequencing (Illumina MiSeq, V3-V4 region) to assess community structure.

From the "data accessibility" section of Life-stage associated remodeling of lipid metabolism regulation in Atlantic salmon. (Publication):

Supplementary files have been deposited to datadryad.org under the accession: https://doi.org/10.5061/dryad.j4h65. Raw RNA-Seq data have been deposited into European Nucleotide Archive (ENA) under the project Accession no. PRJEB24480.

Dead links 2022-06-29 (the Shiny ...

Fatty acids are extracted from samples and converted to fatty acid methyl esters (FAMEs) followed by separation by gas chromatography. This yields fatty acid profiles for each sample as percent of total FAME or milligram FAME per gram of biomass.

Source:

Hei Magny,

Takk!

Et par ting:

1. vi trenger å få orden på data... Lurer derfor på om du kan du lage ett dokument som inneholder alle resultat fra GCen? Uten ...

Fatty acids are extracted from samples and converted to fatty acid methyl esters (FAMEs) followed by separation by gas chromatography. This yields fatty acid profiles for each sample as percent of total FAME or milligram FAME per gram of biomass.

Source:

Hei Magny,

Takk!

Et par ting:

1. vi trenger å få orden på data... Lurer derfor på om du kan du lage ett dokument som inneholder alle resultat fra GCen? Uten ...

CPM is a descriptive measures for the expression level of a gene.

This is the fatty acid profile data from the freshwater portion of the feed switch trial. The last column has the sample ID eg: D0_MA-L-1/9_6 (Day 0, MA- Marine oil, L-liver, 1/9 sept 1, fish number 6

Fatty acid Systematic Name C14:0 Myristic acid myristin-syre C16:0 Palmitic acid palmitin-syre C16:1n7 Palmitoleic palmitolein-syre C17:0 C17:1 C18:0 stearic acid stearin-syre 18:1n9c oleic acid olje-syre C18:2n6c linoleic acid linolsyre C20:1 eicosenoic acid C18:3n3 linolenic acid linolensyre C20:2 ...

Results of gas chromatography of fatty acid composition of feeds used in Study "GSF1: Salmon feed-switch experiment vegetable and fish oil 2015-2016", https://fairdomhub.org/studies/144.

Feed samples are identified by their EWOS feed number. Fatty acids are identified by ChEBI ID. Numbers in table are mass percentage of lipid fraction.

Details on recipes, pellet size etc for each feed ID are in https://fairdomhub.org/data_files/1308.

(The above clarifications required some detective work, which ...

Read counts for each sample

FPKMs or Fragments Per Kilobase of exon per Million reads . Fragment means fragment of DNA, so the two reads that comprise a paired-end read count as one. Per kilobase of exon means the counts of fragments are then normalized by dividing by the total length of all exons in the gene (or transcript). This bit of magic makes it possible to compare Gene A to Gene B even if they are of different lengths. Per million reads means this value is then normalized against the library size. This bit of magic ...

Column 1: Row numbers Column 2: Sample id (See below) Column 3: Water (Fish from salt water or fresh water) Column 4: Tissue (Liver or Gut) Column 5: Feed (MA- Marine oil, VO- Vegetable oil) Column 6: Day Column 7: Count file location

Column 2 explained: The freshwater fish have no tank numbers and saltwater fish do have tank numbers eg : 69-D0-MA-G-1 - > 69 well position (id given when sequncing), Day 0, Marine oil, Gut, Fish number 1 147-D16-VO-MA-L-6 -> 147 well position, Day 16, Vegetable ...

FPKMs or Fragments Per Kilobase of exon per Million reads . Fragment means fragment of DNA, so the two reads that comprise a paired-end read count as one. Per kilobase of exon means the counts of fragments are then normalized by dividing by the total length of all exons in the gene (or transcript). This bit of magic makes it possible to compare Gene A to Gene B even if they are of different lengths. Per million reads means this value is then normalized against the library size. This bit of magic ...

Read counts for each sample

FASTA file of representative sequences for operational taxonomic units in gut microbiota analyses from feed-switch experiment at Solbergstrand January 2016.

Gut microbiota analysis of fish sampled in january 2016. The data is found in row 335-548 and downwards (Sheet 1). The first 16 colums contain information about the fish, and the following columns (From R to AJO) each represent an OTU (Operational taxonomic unit) with the given taxonomy for each OTU presented in the bottom row. Sequencing depth was kept at 13000 sequences per sample, thus the numbers presented in the OTU columns represent the number of sequences matching the specific OTU from the ...

Gut microbiota analysis of the fish whose gross phenotypes are listed in https://fairdomhub.org/data_files/1244. Besides identification of the fish, the data are a 130 x 435 matrix showing amounts of operational taxonomic units (OTUs), one row per fish and one column per OTU (https://en.wikipedia.org/wiki/Operational_taxonomic_unit). Sequences that characterize each OTU are in https://fairdomhub.org/data_files/1317. Amounts are measured as the number out of 2000 sequences examined that contain a ...

Source: Tom Harvey [E- mail from Jon Olav 19 May 2016]

Use this template when you upload RNA sequencing data. Email : 31 May 2016 More columns need to be added PE/SE etc?

Describes the workflow used for preparation of a 16S rRNA gene amplicon (V3-V4 region) Library for sequencing on a MiSeq platform (Illumina) using V3 sequencing chemistry with 300 base pairs paired-end reads.

Describes how the DNA was isolated from salmon intestinal samples before preparations of 16S rRNA gene amplicons for the Illumina MiSeq system.