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http://dx.doi.org/10.23005/ksmls.2022.7.1.55

Histological Description of Oogenesis in Largehead Hairtail Trichiurus lepturus (Teleostei: Trichiuridae)  

Shin, So Ryung (Department of Aqualife Medicine, Chonnam National University)
Kim, Hyeon Jin (Department of Aqualife Medicine, Chonnam National University)
Oh, Han Young (Department of Aqualife Medicine, Chonnam National University)
Kim, Jae Won (Department of Smart Aquaculture, Gangwon State University)
Lee, Jung Sick (Department of Aqualife Medicine, Chonnam National University)
Publication Information
Journal of Marine Life Science / v.7, no.1, 2022 , pp. 55-59 More about this Journal
Abstract
This study was conducted to provide basic information on the sexual mature and reproductive biology of Trichiurus lepturus. During the oogenesis, size of oocyte and nucleus showed the increase tendency but size ratio of nucleolus to nucleus was decreased. In the result of H-E stain, the stainability of the cytoplasm was changed from basophilic to eosinophilic. The egg diameter of initial vitellogenic oocyte was about 63.2 (±12.7) ㎛. In the cytoplasmic cortex, eosinophilic yolk nucleus was observed. The size of mature oocyte was 216.6 (±24.7) ㎛ and GVBD (germinal vesicle breakdown) was observed. The size of ripe oocyte was 317.9 (±80.9) ㎛ and the thickness of zona radiata was 4.2 (±1.7) ㎛. The oocyte developmental type is considered to belong to the group synchronous type. The accumulation of yolk in the oocyte, like most teleost, is thought to be of two types: exogenous and endogenous accumulation.
Keywords
Trichiurus lepturus; Oogenesis;
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Times Cited By KSCI : 1  (Citation Analysis)
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