Effect of Salinity on Oxygen Consumption in Fishes: A Review

J Fish Biol. 2014 Apr;84(4):1210-20. doi: 10.1111/jfb.12330. Epub 2014 Mar 25.

Abstract

The effect of salinity on resting oxygen uptake was measured in the perch Perca fluviatilis and available information on oxygen uptake in teleost species at a variety of salinities was reviewed. Trans-epithelial ion transport against a concentration gradient requires energy and exposure to salinities osmotically different from the body fluids therefore imposes an energetic demand that is expected to be lowest in brackish water compared to fresh and sea water. Across species, there is no clear trend between oxygen uptake and salinity, and estimates of cost of osmotic and ionic regulation vary from a few per cent to >30% of standard metabolism.

Keywords: osmotic and ionic regulation; oxygen consumption; perch; teleosts.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Animals
  • Basal Metabolism
  • Fishes / physiology*
  • Osmosis
  • Oxygen / metabolism
  • Oxygen Consumption*
  • Salinity*

Substances

  • Oxygen