Abstract
The reproductive characters provide information about the gonad maturity of eel. The prepubertal stage occurs in the yellow eel, and the pubertal stage achieves in the silver eel. This study aimed to evaluate the reproductive characters of tropical eel, Anguilla bicolor McClelland in the different developmental stages. Eels with 33 - 81 cm ± 13.54 length, and weight of 98 - 1062 g ± 262.99 were used to determine their reproductive characters. The variables observed were the total length, body weight, Gonadosomatic Index (GSI), eye index and estradiol levels. The results showed that total length, body weight and GSI of silver eels were higher than yellow eels (P < 0.01). Total length, body weight, and GSI were 66.09 cm ± 9.34, 556.83 g ± 236.24, and 2.12% ± 1.88 respectively. The eye index and plasma estradiol level of yellow eel, pre-silver, and silver eel were similar (P > 0.05). In conclusion, there are many differences in reproduction characteristics between a yellow and silver eels. The gonad of silver eel is more mature than that of a yellow eel.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
