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A study on Oogenesis of Liza saliens

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Author
Yousefian, M.
Oryan, Sh.
Farokhi, F.
Asaeian, H.
Date
2003

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Abstract
In this study, gametogenesis of sharp-nose mullet (Liza saliens) was investigated bassed on morphological and histological characteristics. For this purpose, about 150 specimen of this species were collected from beach-seine nets in the southern Caspian Sea and were transferred to the laboratory for futher examinations on gonads. The gonad development was classified to 6 different stages consist of: stage I: The oocytes small, colourless with a big nucleus. stage II: The low increase in size of oocytes; globular yolk of nucleus appearing. stage III: Blood vessels are appearing on the ovary; the oocytes are in the primary vitellogenesis stages; vacules and zona radiata are seen around them. stage IV: The ovules can be easily observed with naked-eyes, vitellogenesis are complete and oocytes are mature. stage V: Oocytes are in maximum growth, nucleus migrating towards animal pole; spawning occures in this stage. stage VI: This stage is after spawning, ovary contains empty follicles. Based on this study, the stage of I to III were observed in August to April; stage of IV in May and June; stage of V in June and July and stage VI in August.
Journal
Iranian Scientific Fisheries Journal
Volume
12
Issue/Article Nr
1
Page Range
pp.131-152
Resource/Dataset Location
http://isfj.areo.ir/
URI
http://hdl.handle.net/1834/12969
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Iranian Scientific Fisheries Journal

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