The relative importance of skin oxygen uptake in the naturally buried plaice, Pleuronectes platessa, exposed to graded hypoxia

Respir Physiol. 1981 Jun;44(3):269-75. doi: 10.1016/0034-5687(81)90022-0.


Cutaneous O2-uptake has been estimated in plaice, Pleuronectes platessa, naturally buried in sediment as the difference between total O2-uptake, measured in a flow-through respirometer, and branchial O2-uptake calculated from direct and continuous recordings of gill water flow and O2-extraction from the ventilatory current. At conditions of aerated water cutaneous O2-uptake made up 27% of total uptake. During exposure to hypoxic water, cutaneous O2-uptake declined less than O2-uptake across the gills. Hence the relative importance of cutaneous O2-uptake increased with progressive hypoxia, making up 37% of total at a water PO2 of 40 mm Hg. Factors are discussed which may affect the level of cutaneous O2-uptake at changing conditions of ambient O2-availability.

MeSH terms

  • Animals
  • Fishes / physiology*
  • Gills / metabolism
  • Hypoxia / physiopathology*
  • Oxygen Consumption*
  • Skin / metabolism*