Gene expression patterns in Atlantic salmon (Salmo salar) with severe nephrocalcinosis.

Nephrocalcinosis is a common disorder in farmed Atlantic salmon, but the consequences for the fish physiology are not well understood. We performed a transcriptome study in kidneys of Atlantic salmon (Salmo salar) smolts without and with severe chronic nephrocalcinosis (NC). The study revealed that numerous genes are differentially expressed in fish with NC compared with healthy salmon.

Assimilation and turnover rates of lipid compounds in dominant Antarctic copepods fed with C-enriched diatoms.

The study revealed species- and stage-specific differences in lipid accumulation of the dominant Antarctic copepods, the primarily herbivorous (copepodite stage V (CV), females) and the more omnivorous (females) storing wax esters and triacylglycerols, respectively, which were collected in summer (end of December). Feeding carbon-labelled diatoms to these copepods, C elucidated assimilation and turnover rates of copepod total lipids as well as specific fatty acids and alcohols. The C incorporation was monitored by compound-specific stable isotope analysis (CSIA).