In vivo Nord 1 biometrics

Version 1

The goal of the dCod-project is to combine the competencies in environmental toxicology, biology, bioinformatics and mathematics across the traditional department boundaries, to create a deeper understanding of cods' adaptations and reactions to stressors in the environment. Building on the thoroughly studies and mapping of the cod genome at UiO and the long research traditions on cod at the Department of Biology at UiB, the dCod project will expand our knowledge with methods based on genomics; ...

Coastal zones and oceans constitute an essential fundament for Norway’s history as well as current economy, providing ecosystem services for fisheries, aquaculture, transport, tourism, and recreation. The petroleum activities in Norwegian waters have been crucial for Norway’s financial growth and in financing the Norwegian welfare state. As the pressure on the oceans continuously increases, both the petroleum industry and the seafood industries have acknowledged that awareness and actions are ...

Aim: To investigate whether Atlantic cod that feed close to aquatic breeding facilities are affected by chlorpyrifos-methyl. Feeding experiment with chlorpyrifos-methyl, an organophosphorous pesticide detected in plant based salmon feed. Based on previous experiments using salmon.

Doses: 0, 0.5, 5.0, 25 mg/kg) chlorpyrifos-methyl. Duration: 30 days Set-up: Three tanks per treatment (12 in total)

Samples include: Liver, plasma, bile, brain. Analysis include:

• Have RNAseq and metabolomics from 36 ...

Fish weight (start - end), length, total growth and specific growth rate (SGR)

Transcriptomics results from liver of cod exposed to chlorpyrifos-methyl

Global metabolomics screening of 36 liver samples from Atlantic cod exposed to chlorpyrifos-methyl for 30 days.

Cyp1a activity (=EROD) measured in liver samples of cod exposed to chlorpyrifos-methyl

Concentrations of chlorpyrifos-methyl and its metabolite TCP in cod liver and bile quantified using gas chromatography

Measurement of plasma parameters: activities of cholinesterase, alanine aminotransferase, aspartate aminotransferase + cortisol and total protein levels in cod exposed to chlorpyrifos-methyl