Effect of food shortage and temperature on age 0+ salmonids: a contribution to predict the effects of climate change

J Fish Biol. 2018 Mar;92(3):642-652. doi: 10.1111/jfb.13533. Epub 2018 Jan 24.

Abstract

Brown trout Salmo trutta alevins were maintained at 8 and 11° C at three conditions over a 9 day period from yolk sac exhaustion: fed ad libitum, starved or fed ad libitum after starvation. Whole-body gene expressions for proteins involved in energy metabolism and the two primary proteolytic pathways were assessed. This study is the first to show an over-expression of proteasome and autophagy-related genes in young stages of salmonids, particularly at 11° C.

Keywords: fry; metabolism; prey, Salmo trutta; starvation; temperature.

MeSH terms

  • Animals
  • Autophagy / genetics
  • Climate Change*
  • Energy Metabolism*
  • Fish Proteins / genetics
  • Fish Proteins / metabolism
  • Gene Expression Profiling
  • Proteolysis
  • Temperature*
  • Trout / genetics*
  • Trout / metabolism
  • Trout / physiology
  • Yolk Sac

Substances

  • Fish Proteins