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אסיף מאגר המחקר החקלאי
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The relationship of gonad and egg size to weight and age in the European and Chinese races of the common carp Cyprinus carpio L.
Year:
1974
Source of publication :
Journal of Fish Biology
Authors :
Hulata, Gideon
;
.
Moav, Ram
;
.
Wohlfarth, Giora W.
;
.
Volume :
6
Co-Authors:
Hulata, G., Genetics Department, Hebrew University of Jerusalem, Israel
Moav, R., Genetics Department, Hebrew University of Jerusalem, Israel
Wohlfarth, G., Fish and Aquaculture Research Station, Dor, Israel
Facilitators :
From page:
745
To page:
758
(
Total pages:
14
)
Abstract:
Gonad development was studied in young carp of the European and Chinese (big‐belly) races. The effects of age and body weight on gonad and egg size were partitioned and the following findings were made: (i) Gonad weight was correlated, in both males and females, with body weight, but proportional gonad weight, i.e. the ratio gonad weight divided by body weight, was independent of body weight, (ii) Proportional gonad weight had reached its maximum value in one year old males, but it more than doubled in two year old females, (iii) Egg size of two year old females was more than twice the size of eggs of one year old females, (iv) The European and Chinese races of carp differed in several aspects of gonad development. In particular, the Chinese matured earlier and their relative gonad sizes were considerably larger, (v) Genetic variation in gonad development was also found within the European race, where faster rate of development is dominant over slower rate. The evolutionary implications of the above differences were discussed. Copyright © 1974, Wiley Blackwell. All rights reserved
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More details
DOI :
10.1111/j.1095-8649.1974.tb05116.x
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
23651
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:01
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The relationship of gonad and egg size to weight and age in the European and Chinese races of the common carp Cyprinus carpio L.
6
Hulata, G., Genetics Department, Hebrew University of Jerusalem, Israel
Moav, R., Genetics Department, Hebrew University of Jerusalem, Israel
Wohlfarth, G., Fish and Aquaculture Research Station, Dor, Israel
The relationship of gonad and egg size to weight and age in the European and Chinese races of the common carp Cyprinus carpio L.
Gonad development was studied in young carp of the European and Chinese (big‐belly) races. The effects of age and body weight on gonad and egg size were partitioned and the following findings were made: (i) Gonad weight was correlated, in both males and females, with body weight, but proportional gonad weight, i.e. the ratio gonad weight divided by body weight, was independent of body weight, (ii) Proportional gonad weight had reached its maximum value in one year old males, but it more than doubled in two year old females, (iii) Egg size of two year old females was more than twice the size of eggs of one year old females, (iv) The European and Chinese races of carp differed in several aspects of gonad development. In particular, the Chinese matured earlier and their relative gonad sizes were considerably larger, (v) Genetic variation in gonad development was also found within the European race, where faster rate of development is dominant over slower rate. The evolutionary implications of the above differences were discussed. Copyright © 1974, Wiley Blackwell. All rights reserved
Scientific Publication
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