Nuclear diameter as a criterion of adrenocortical activity in a teleost fish Coregonus lavaretus (L.)
Identifieur interne : 001D45 ( Main/Exploration ); précédent : 001D44; suivant : 001D46Nuclear diameter as a criterion of adrenocortical activity in a teleost fish Coregonus lavaretus (L.)
Auteurs : D. B. C. Scott [Royaume-Uni] ; S. E. Rennie [Afrique du Sud]Source :
- Journal of Fish Biology [ 0022-1112 ] ; 1980-07.
Abstract
A direct comparison of plasma cortisol levels and mean nuclear diameter of adrenocortical cells in the same fish was carried out, to determine whether nuclear diameter could be used as a valid criterion of adrenocortical activity in Coregonus lavaretus (L.). Specimens were caught and killed by a variety of methods and at different seasons, providing a range of plasma cortisol concentrations, which were measured by gas‐liquid chromatography. The head‐kidneys of the same fish were immediately fixed and the diameters of 20 adrenocortical cell nuclei measured in 7 μm sections of each, prepared by strictly standardized methods. The correlation coefficient was 0·54, so that nuclear diameter cannot be regarded as an accurate criterion of adrenocortical activity.
Url:
DOI: 10.1111/j.1095-8649.1980.tb02744.x
Affiliations:
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