KMID : 0894520210250030123
|
|
Development & Reproduction 2021 Volume.25 No. 3 p.123 ~ p.131
|
|
Gonadal Abnormality and Intersexuality of Oplegnathus fasciatus (Teleostei: Oplegnathidae) Collected from the Southern Coast of Korea: A Case Report
|
|
Choi Ji-Sung
Shin So-Ryung Kim Hyeon-Jin Kim Hye-Jin Kim Yeong-Hye Lee Jung-Sick
|
|
Abstract
|
|
|
We report on the gonadal structure abnormality and intersexuality found from a survey regarding the reproductive potential of the rock bream, Oplegnathus fasciatus, along the southern coast of Korea. In total, 448 samples were collected for histological analysis (total length 27.5¡¾6.8 cm; total weight 522.9¡¾385.6 g). The sex ratio (F:M) was 1:0.46 (n=307:141), with 68.5% being females. The frequency of oocyte atresia and ovarian neoplasm in the females was 85.3% and 21.5%, respectively, and the frequency of testicular lobule and cyst deformation and testicular neoplasm in the males was 73.1% and 37.6%, respectively. The scale formation in the ovary and testis was approximately 2.0% for both sexes. The intersexuality was 42.2%, with the intersexuality among females being 49.5%, which was significantly higher than that of males (26.2%). Such findings indicate a negative impact on the reproductive output of the rock bream along the southern coast of Korea; however, a more detailed study is required to ascertain accurate causes.
|
|
KEYWORD
|
|
Oplegnathus fasciatus, Gonadal abnormality, Intersexuality
|
|
FullTexts / Linksout information
|
|
|
|
Listed journal information
|
|
|