Determination of sex and sexual maturation stages in cultured Acipenser nudiventris using biopsy method
Sturgeon fish take long time to mature sexually and determination of sex and sexual maturity stages is important in artificial rearing of the fish. Sex determination by macroscopic method has thus far been impossible for the fish at juvenile stages. Gonad biopsy and its histological examination is one way for detecting male and female sturgeon fishes. To do so, we collected gonad samples from 13 five year old and 17 six year old specimens of the cultured Acipenser nudiventris. Samples were studied by light microscope after fixing and histological practices. Of the 13 five years old specimens, only 3 (23.1%) were male and 10 (76.9 %) were females. From 17 six years old fish, 10 (58.8%) were males and 7 (41.2%) were females. Histological studies showed that all male fish were at stage IV, but 5.8 % of all females were at stage I, 41.2 % were at stage II and 53 % were at stage II-III of sexual maturation. We also showed that in the studies sample, males reached maturity sooner than females.
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Language: | Persian |
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2007
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Subjects: | Biology, Fisheries, Gametogenesis, Sexual reproduction, Developmental stages, Sex determination, Rearing, Histology, Sexual maturity, Gonads, Fish Culture, Sex, Light microscopy, Anadromous species, Microscopes, Acipenser, Acipenser nudiventris, Brackish, Caspian Sea, Iran, |
Online Access: | http://hdl.handle.net/1834/38380 |
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dig-aquadocs-1834-383802021-07-14T03:25:24Z Determination of sex and sexual maturation stages in cultured Acipenser nudiventris using biopsy method Hallajian, A. Kazemi, R. Mohseni, M. Bahmani, M. Yousefi, A. Biology Fisheries Gametogenesis Sexual reproduction Developmental stages Sex determination Rearing Histology Sexual maturity Gonads Fish Culture Sex Light microscopy Anadromous species Microscopes Acipenser Acipenser nudiventris Brackish Caspian Sea Iran Sturgeon fish take long time to mature sexually and determination of sex and sexual maturity stages is important in artificial rearing of the fish. Sex determination by macroscopic method has thus far been impossible for the fish at juvenile stages. Gonad biopsy and its histological examination is one way for detecting male and female sturgeon fishes. To do so, we collected gonad samples from 13 five year old and 17 six year old specimens of the cultured Acipenser nudiventris. Samples were studied by light microscope after fixing and histological practices. Of the 13 five years old specimens, only 3 (23.1%) were male and 10 (76.9 %) were females. From 17 six years old fish, 10 (58.8%) were males and 7 (41.2%) were females. Histological studies showed that all male fish were at stage IV, but 5.8 % of all females were at stage I, 41.2 % were at stage II and 53 % were at stage II-III of sexual maturation. We also showed that in the studies sample, males reached maturity sooner than females. 2021-06-24T18:11:44Z 2021-06-24T18:11:44Z 2007 article TRUE 1026-1354 http://hdl.handle.net/1834/38380 fa http://www.ifro.ir application/pdf application/pdf 65-72 http://aquaticcommons.org/id/eprint/23663 18721 2018-07-16 09:39:08 23663 Iranian Fisheries Science Research Institute |
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Biology Fisheries Gametogenesis Sexual reproduction Developmental stages Sex determination Rearing Histology Sexual maturity Gonads Fish Culture Sex Light microscopy Anadromous species Microscopes Acipenser Acipenser nudiventris Brackish Caspian Sea Iran Biology Fisheries Gametogenesis Sexual reproduction Developmental stages Sex determination Rearing Histology Sexual maturity Gonads Fish Culture Sex Light microscopy Anadromous species Microscopes Acipenser Acipenser nudiventris Brackish Caspian Sea Iran |
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Biology Fisheries Gametogenesis Sexual reproduction Developmental stages Sex determination Rearing Histology Sexual maturity Gonads Fish Culture Sex Light microscopy Anadromous species Microscopes Acipenser Acipenser nudiventris Brackish Caspian Sea Iran Biology Fisheries Gametogenesis Sexual reproduction Developmental stages Sex determination Rearing Histology Sexual maturity Gonads Fish Culture Sex Light microscopy Anadromous species Microscopes Acipenser Acipenser nudiventris Brackish Caspian Sea Iran Hallajian, A. Kazemi, R. Mohseni, M. Bahmani, M. Yousefi, A. Determination of sex and sexual maturation stages in cultured Acipenser nudiventris using biopsy method |
description |
Sturgeon fish take long time to mature sexually and determination of sex and sexual maturity stages is important in artificial rearing of the fish. Sex determination by macroscopic method has thus far been impossible for the fish at juvenile stages. Gonad biopsy and its histological examination is one way for detecting male and female sturgeon fishes. To do so, we collected gonad samples from 13 five year old and 17 six year old specimens of the cultured Acipenser nudiventris. Samples were studied by light microscope after fixing and histological practices. Of the 13 five years old specimens, only 3 (23.1%) were male and 10 (76.9 %) were females. From 17 six years old fish, 10 (58.8%) were males and 7 (41.2%) were females. Histological studies showed that all male fish were at stage IV, but 5.8 % of all females were at stage I, 41.2 % were at stage II and 53 % were at stage II-III of sexual maturation. We also showed that in the studies sample, males reached maturity sooner than females. |
format |
article |
topic_facet |
Biology Fisheries Gametogenesis Sexual reproduction Developmental stages Sex determination Rearing Histology Sexual maturity Gonads Fish Culture Sex Light microscopy Anadromous species Microscopes Acipenser Acipenser nudiventris Brackish Caspian Sea Iran |
author |
Hallajian, A. Kazemi, R. Mohseni, M. Bahmani, M. Yousefi, A. |
author_facet |
Hallajian, A. Kazemi, R. Mohseni, M. Bahmani, M. Yousefi, A. |
author_sort |
Hallajian, A. |
title |
Determination of sex and sexual maturation stages in cultured Acipenser nudiventris using biopsy method |
title_short |
Determination of sex and sexual maturation stages in cultured Acipenser nudiventris using biopsy method |
title_full |
Determination of sex and sexual maturation stages in cultured Acipenser nudiventris using biopsy method |
title_fullStr |
Determination of sex and sexual maturation stages in cultured Acipenser nudiventris using biopsy method |
title_full_unstemmed |
Determination of sex and sexual maturation stages in cultured Acipenser nudiventris using biopsy method |
title_sort |
determination of sex and sexual maturation stages in cultured acipenser nudiventris using biopsy method |
publishDate |
2007 |
url |
http://hdl.handle.net/1834/38380 |
work_keys_str_mv |
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_version_ |
1756079751004422144 |