Ovarian Development of Conger Eel in Korea, , in Captivity.

Effects of water temperature and hormones on ovarian development of conger eel in Korea were investigated. Ovarian development was analyzed by measuring gonadosomatic index (GSI) and oocyte diameter with histological methods. At rearing water temperatures of 12°C, 14°C, and 16°C, GSI value increased from 3.

Annual Reproductive Cycle of , in Korea.

In this study, an experiment was conducted to investigate the annual reproductive cycle of a Korean flat bittering, , from Ogok-myeon located in Seomjin River. The reproductive cycle was examined histologically regarding water temperature and day length of the habitat, the gonadosomatic index (GSI), and developmental characteristics of female and male gonads. The maximum GSI was found to be 3.

The Annual Reproductive Cycle of , a Korean Endemic Species.

The annual reproductive cycle of the Korean endemic slender catfish, , was examined histologically regarding water temperature and day length of habitat, gonadosomatic index (GSI), and development characteristics of female and male gonads. The maximum GSI value was found in May, 1.23±0.