Dataset Information

Spatial variation in transcript and protein abundance of Atlantic salmon during feeding migration in the Baltic Sea

ABSTRACT: The fitness and reproductive output of fishes can be affected by environmental disturbances. In this study, transcriptomics and label-free proteomics were combined to investigate Atlantic salmon (Salmo salar) sampled from three different field locations within the Baltic Sea (Baltic Main Basin (BMB), Gulf of Finland (GoF) and Bothnian Sea (BS)) during marine migration. The expression of several stress related mRNAs and proteins of xenobiotic metabolism, oxidative stress, DNA damage and cell death were increased in salmon from GoF compared to salmon from BMB or BS. Respiratory electron chain and ATP synthesis related gene ontology-categories were upregulated in GoF salmon whereas those associated with RNA processing and synthesis, translation and protein folding decreased. Differences were seen also in metabolism and immune function related gene expression. Comparisons of the transcriptomic and proteomic profiles between salmon from GoF and salmon from BMB or BS suggest environmental stressors, especially exposure to environmental contaminants, as a main explanation for differences. Salmon feeding in GoF are thus “disturbed by hazardous substances”. The results may also be applied in evaluating the conditions of pelagic ecosystems in the different parts of Baltic Sea.

INSTRUMENT(S): LTQ Orbitrap

ORGANISM(S): Salmo Salar (atlantic Salmon)

TISSUE(S): Liver

SUBMITTER: Mirella Kanerva

LAB HEAD: Kristiina A. Vuori

PROVIDER: PXD001453 | Pride | 2015-01-26

REPOSITORIES: Pride

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Spatial variation in transcript and protein abundance of Atlantic salmon during feeding migration in the Baltic Sea.

Kanerva Mirella M Vehmas Anni A Nikinmaa Mikko M Vuori Kristiina A KA

Environmental science & technology 20141201 23

The fitness and reproductive output of fishes can be affected by environmental disturbances. In this study, transcriptomics and label-free proteomics were combined to investigate Atlantic salmon (Salmo salar) sampled from three different field locations within the Baltic Sea (Baltic Main Basin (BMB), Gulf of Finland (GoF), and Bothnian Sea (BS)) during marine migration. The expression of several stress related mRNAs and proteins of xenobiotic metabolism, oxidative stress, DNA damage, and cell de ...[more]

PMID: 25356801

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