태생 경골어류, 망상어(Ditrema temmincki)의 임신기 동안 체내자어의 체액삼투압 및 모체 난소조직상의 변화 = Changes of the Osmolarity in Embryonic Body Fluid and the Maternal Ovarian Tissue of the Viviparous Teleost, Ditrema temmincki, during the Gestation Period

다국어 초록 (Multilingual Abstract)

Dry weight and body fluid osmolarity of embryo, and maternal ovarian fluid and the ovarian inner tissue of the viviparous teleost, Ditrema temmincki, changed considerably during the gestation period. After the complete absorption of the egg yolk, average dry weight of the embryo increased to 373.76 mg, and the range of total length (TL) was from 6.0 to 60.0 mm. Osmolarity of the embryonic body fluid was 796,8 mOsmol/kg with TL 64.0 mm right before parturition. Ovarian outer membrane started to swelling clearly after fertilization, and maximized in March. The swelling of ovigerous folds was maximized in late April. Expansion of blood vessels and increase of hemocytes reached to their maximum right before parturition. The results of this study indicated that these changes are related to the nutritional and environmental adaptation of both the embryo and the maternal body during the gestation period.