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Studies on serum esterase in herring and sprat

Nævdal, Gunnar
Research report
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URI
http://hdl.handle.net/11250/114578
Date
1969
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  • Fiskeridirektoratets skrifter, Serie Havundersøkelser (1900-1990) [314]
Abstract
1. Herring and sprat serum esterase has been studied by combined

starch and agar gel electrophoresis at pH 9.0. Both strong and weak

bands which represesented esterase activity occurred in both species.

2. Most herring specimens contained one strong component of intermediate

anodic mobility. Two strong components of higher and

two of lower anodic mobility occurred at low frequencies. A hypothesis

of genetical control by one gene controlling each of the

components is proposed.

3. Maximum six weak bands of herring serum esterase were found.

Considerable variations among specimens occurred in these bands.

No theory of genetic control of the total variations can be given at

present, but two codominant alleles may be responsible for the variation

in two of the weak bands.

4. The intraspecific variations in sprat serum esterase were complicated,

and it was difficult to classify the specimens into well defined

groups on basis of these variations. A hypothesis of control by two

allelic genes of the variations in two of the components is introduced.

5. Frequency variations among some of the samples of both species were

indicated.
Publisher
[Fiskeridirektoratets havforskningsinstitutt]
Series
Fiskeridirektoratets skrifter, Serie Havundersøkelser
vol 15 no 2

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