Histological study on ovary of yellowfin tuna (Thunnus albacares) in the Gulf of Oman
In the present research which was done during the period of July 1997 to June 1998, histological studies on maturation stages of 40 yellowfin tuna specimen (Thunnus albacares) were conducted. It was concluded that the ovaries of this fish had the following characteristics; Germination disk were not present. There were no difference among anterior, posterior and middle parts of maturity stage of ovaries. All observed ovaries were asynchronous. The ovaries had five maturity stages which were as follow: a) Immature b) maturing c) Ripening d) Ripe e) Spent Average dimension of oocyte in different stage are as follow: Immature (<20µ); maturing (>40µ); Ripening (<60µ) and Ripe (<120µ).
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Format: | article biblioteca |
Language: | Persian |
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2004
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Subjects: | Biology, Histology, Ovary, Thunnus albacares, Oman Sea, Iran, |
Online Access: | http://hdl.handle.net/1834/39216 |
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dig-aquadocs-1834-392162021-07-15T03:25:59Z Histological study on ovary of yellowfin tuna (Thunnus albacares) in the Gulf of Oman Oryan, Sh. Hosseinzadeh, H. Abdaly, S. Biology Histology Ovary Thunnus albacares Oman Sea Iran In the present research which was done during the period of July 1997 to June 1998, histological studies on maturation stages of 40 yellowfin tuna specimen (Thunnus albacares) were conducted. It was concluded that the ovaries of this fish had the following characteristics; Germination disk were not present. There were no difference among anterior, posterior and middle parts of maturity stage of ovaries. All observed ovaries were asynchronous. The ovaries had five maturity stages which were as follow: a) Immature b) maturing c) Ripening d) Ripe e) Spent Average dimension of oocyte in different stage are as follow: Immature (<20µ); maturing (>40µ); Ripening (<60µ) and Ripe (<120µ). 2021-06-24T18:17:15Z 2021-06-24T18:17:15Z 2004 article TRUE 1026-1354 http://hdl.handle.net/1834/39216 fa http://www.ifro.ir application/pdf application/pdf 85-96 http://aquaticcommons.org/id/eprint/24802 18721 2018-08-06 17:36:14 24802 Iranian Fisheries Science Research Institute |
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Biology Histology Ovary Thunnus albacares Oman Sea Iran Biology Histology Ovary Thunnus albacares Oman Sea Iran |
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Biology Histology Ovary Thunnus albacares Oman Sea Iran Biology Histology Ovary Thunnus albacares Oman Sea Iran Oryan, Sh. Hosseinzadeh, H. Abdaly, S. Histological study on ovary of yellowfin tuna (Thunnus albacares) in the Gulf of Oman |
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In the present research which was done during the period of July 1997 to June 1998, histological studies on maturation stages of 40 yellowfin tuna specimen (Thunnus albacares) were conducted. It was concluded that the ovaries of this fish had the following characteristics; Germination disk were not present. There were no difference among anterior, posterior and middle parts of maturity stage of ovaries. All observed ovaries were asynchronous. The ovaries had five maturity stages which were as follow: a) Immature b) maturing c) Ripening d) Ripe e) Spent Average dimension of oocyte in different stage are as follow: Immature (<20µ); maturing (>40µ); Ripening (<60µ) and Ripe (<120µ). |
format |
article |
topic_facet |
Biology Histology Ovary Thunnus albacares Oman Sea Iran |
author |
Oryan, Sh. Hosseinzadeh, H. Abdaly, S. |
author_facet |
Oryan, Sh. Hosseinzadeh, H. Abdaly, S. |
author_sort |
Oryan, Sh. |
title |
Histological study on ovary of yellowfin tuna (Thunnus albacares) in the Gulf of Oman |
title_short |
Histological study on ovary of yellowfin tuna (Thunnus albacares) in the Gulf of Oman |
title_full |
Histological study on ovary of yellowfin tuna (Thunnus albacares) in the Gulf of Oman |
title_fullStr |
Histological study on ovary of yellowfin tuna (Thunnus albacares) in the Gulf of Oman |
title_full_unstemmed |
Histological study on ovary of yellowfin tuna (Thunnus albacares) in the Gulf of Oman |
title_sort |
histological study on ovary of yellowfin tuna (thunnus albacares) in the gulf of oman |
publishDate |
2004 |
url |
http://hdl.handle.net/1834/39216 |
work_keys_str_mv |
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_version_ |
1756079863091953664 |