Hulata et al, 1974


Hulata, G. and Moav, R. and Wohlfarth, G. (1974) The relationship of gonad and egg size to weight and age in the European and Chinese races of the common carp Cyrpinus caprio L. J. Fish. Biol., pp. 745-758

Associated characteristics

Species Development state Trait Primary Data Secondary Data
Cyprinus carpio Egg Oocyte diameter Egg diameter in 11 month old and 23 month old carp, vary according to different king of carp from 0.79 +/- 0.025, 0.94 +/- 0.02; 1.29 +/-0.035 0.79 mm
Cyprinus carpio Egg Egg size after water-hardening Size of eggs taken from spawning beds ranged from means of 1.23 +/-0.03 to 1.76 +/-1.76 1.23 mm
Cyprinus carpio Female Onset of oogenesis GSI increase from 1.7 +/- 0.4 in September 28 to 6.2 +/- 1.1 in November 12 for big-belly and 0.4 +/-0.1 to 1.1 +/- 0.2 for Gold in Israel ['September', 'November']
Cyprinus carpio Male Maximum GSI value GSI reaches 16.3 +/- 2.0 for big-belly and 7.0 +/- 0.7% for Gold in November 12 in Israel 16.3 percent
Cyprinus carpio Spawning conditions Spawning season The studies were conducted in experimental ponds at the Fish and Aquaculture Research station, Dor. All the fish spawned within a single week in April. ['April']