Park Jae-Min, Han Kyeong-Ho
Gyeongsangbuk-Do Native Fish Business Center, Uiseong 37366, Korea.
Marine Technology Undergraduate, Chonnam National University, Yeosu 59626, Korea.
Dev Reprod. 2018 Mar;22(1):39-53. doi: 10.12717/DR.2018.22.1.039. Epub 2018 Mar 31.
The purpose of this study is to investigate the early life history of the fish, and , in the Nakdong River to use as the preliminary data for the systematic study. The embryos used in the study were fertilized eggs (embryo) and larvae after artificial fertilization. The long diameter of the eggs of the was 3.39-3.97 mm (average 3.68±0.41 mm, n=30) and the short diameter was 1.36-1.55 mm (average 1.45±0.13 mm, n=30). The long diameter of the eggs of the was 2.53-2.71 mm (average 2.62±0.12 mm, n=30) and the short diameter was 1.47-1.60 mm (average 1.53±0.09 mm, n=30). Hatching time was 48 hours for the and 50 hours for the given that the average water temperature was 21.5°C. The hatched larvae were 4.95-5.00 mm (average 4.98±0.04 mm, n=5) for the and the total length was 3.66-3.69 mm (average 3.67±0.02 mm, n=5) for the . was found to be 15.5-15.8 mm at total length (average 15.6±0.21 mm, n=5) on the 56 days after hatching with the number of dorsal fins being iii-9, anal fins iii-10, ventral fins iii-5. The was found to be 15.8-16.0 mm (average 15.9±0.14 mm, n=5) at total length on the 58 days with the number of dorsal fins being iii-11, anal fins iii-12 and ventral fins iii-5 where the number of all fin stalks reached maximum.
本研究的目的是调查该鱼类的早期生活史，并在洛东江进行研究，以作为系统研究的初步数据。本研究中使用的胚胎是人工授精后的受精卵（胚胎）和幼体。[鱼类名称1]的卵长径为3.39 - 3.97毫米（平均3.68±0.41毫米，n = 30），短径为1.36 - 1.55毫米（平均1.45±0.13毫米，n = 30）。[鱼类名称2]的卵长径为2.53 - 2.71毫米（平均2.62±0.12毫米，n = 30），短径为1.47 - 1.60毫米（平均1.53±0.09毫米，n = 30）。在平均水温为21.5°C的情况下，[鱼类名称1]的孵化时间为48小时，[鱼类名称2]为50小时。孵化出的[鱼类名称1]幼体全长为4.95 - 5.00毫米（平均4.98±0.04毫米，n = 5），[鱼类名称2]幼体全长为3.66 - 3.69毫米（平均3.67±0.02毫米，n = 5）。[鱼类名称1]在孵化后56天，全长为15.5 - 15.8毫米（平均15.6±0.21毫米，n = 5），背鳍数量为iii - 9，臀鳍数量为iii - 10，腹鳍数量为iii - 5。[鱼类名称2]在孵化后58天，全长为15.8 - 16.0毫米（平均15.9±0.14毫米，n = 5），背鳍数量为iii - 11，臀鳍数量为iii - 12，腹鳍数量为iii - 5，此时所有鳍条数量达到最大值。
