The effect of anaemia on ion exchange in the southern flounder (Paralichthys lethostigma)

Chris M. Wood, D. J. Randall

Research output: Contribution to journalArticle

15 Scopus citations

Abstract

1. 1. Measurements of branchial sodium efflux rates, radiosodium spaces, and plasma ionic levels were made in southern flounder through use of a catheterization technique which permitted serial blood sampling. 2. 2. Disturbances in hematocrit and plasma sodium concentration were associated with the catheterization procedure. 3. 3. Sodium efflux rate was reduced 23 per cent in fish rendered anaemic through bleeding. 4. 4. Radiosodium spaces and plasma sodium and potassium levels were not significantly changed by anaemia. However, plasma sodium and potassium levels were positively correlated regardless of hematocrit. 5. 5. The results are discussed in terms of present theories of electrolyte balance and blood shunting mechanisms in the gills of teleosts.

Original languageEnglish (US)
Pages (from-to)391-402
Number of pages12
JournalComparative Biochemistry and Physiology -- Part A: Physiology
Volume39
Issue number3
DOIs
StatePublished - Jul 1 1971

Keywords

  • Anaemia
  • branchial blood flow
  • branchial ion exchange
  • ionic regulation
  • Paralichthys lethostigma
  • radiosodium space
  • sodium efflux rate
  • vascular catheterization

ASJC Scopus subject areas

  • Physiology
  • Molecular Biology
  • Biochemistry

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