Histological observations on spermatogenesis in winter flounder, Pleuronectes americanus Walbaum, from Conception Bay, Newfoundland, Canada
Male winter flounder, Pleuronectes americanus Walbaum, collected from Conception Bay, Newfoundland, from late July to October 1997 were studied to provide histological insight into the cycle of spermatogenesis. The sequence of stages followed the same general pattern as that described for a variety...
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1999
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crcansciencepubl:10.1139/z99-159 2023-12-17T10:43:23+01:00 Histological observations on spermatogenesis in winter flounder, Pleuronectes americanus Walbaum, from Conception Bay, Newfoundland, Canada Moulton, Sonya M Burton, Margaret PM 1999 http://dx.doi.org/10.1139/z99-159 http://www.nrcresearchpress.com/doi/pdf/10.1139/z99-159 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 77, issue 11, page 1682-1689 ISSN 0008-4301 1480-3283 Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 1999 crcansciencepubl https://doi.org/10.1139/z99-159 2023-11-19T13:39:40Z Male winter flounder, Pleuronectes americanus Walbaum, collected from Conception Bay, Newfoundland, from late July to October 1997 were studied to provide histological insight into the cycle of spermatogenesis. The sequence of stages followed the same general pattern as that described for a variety of other teleost species, beginning with mitotic proliferation of reserve spermatogonia. Spermatogenesis was found to be very rapid compared with reports for other seasonal spawners. The onset of spermatogenesis, as indicated by the appearance of mitotic figures, occurred during September and the process was completed just over a month later. Therefore, sperm were present in the testes at least 6 months prior to the usual time of spawning. Possible reasons why spermatogenesis is completed so long before spawning in P. americanus are discussed. Article in Journal/Newspaper Newfoundland Canadian Science Publishing (via Crossref) Canada Canadian Journal of Zoology 77 11 1682 1689 |
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Open Polar |
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Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics Moulton, Sonya M Burton, Margaret PM Histological observations on spermatogenesis in winter flounder, Pleuronectes americanus Walbaum, from Conception Bay, Newfoundland, Canada |
topic_facet |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
Male winter flounder, Pleuronectes americanus Walbaum, collected from Conception Bay, Newfoundland, from late July to October 1997 were studied to provide histological insight into the cycle of spermatogenesis. The sequence of stages followed the same general pattern as that described for a variety of other teleost species, beginning with mitotic proliferation of reserve spermatogonia. Spermatogenesis was found to be very rapid compared with reports for other seasonal spawners. The onset of spermatogenesis, as indicated by the appearance of mitotic figures, occurred during September and the process was completed just over a month later. Therefore, sperm were present in the testes at least 6 months prior to the usual time of spawning. Possible reasons why spermatogenesis is completed so long before spawning in P. americanus are discussed. |
format |
Article in Journal/Newspaper |
author |
Moulton, Sonya M Burton, Margaret PM |
author_facet |
Moulton, Sonya M Burton, Margaret PM |
author_sort |
Moulton, Sonya M |
title |
Histological observations on spermatogenesis in winter flounder, Pleuronectes americanus Walbaum, from Conception Bay, Newfoundland, Canada |
title_short |
Histological observations on spermatogenesis in winter flounder, Pleuronectes americanus Walbaum, from Conception Bay, Newfoundland, Canada |
title_full |
Histological observations on spermatogenesis in winter flounder, Pleuronectes americanus Walbaum, from Conception Bay, Newfoundland, Canada |
title_fullStr |
Histological observations on spermatogenesis in winter flounder, Pleuronectes americanus Walbaum, from Conception Bay, Newfoundland, Canada |
title_full_unstemmed |
Histological observations on spermatogenesis in winter flounder, Pleuronectes americanus Walbaum, from Conception Bay, Newfoundland, Canada |
title_sort |
histological observations on spermatogenesis in winter flounder, pleuronectes americanus walbaum, from conception bay, newfoundland, canada |
publisher |
Canadian Science Publishing |
publishDate |
1999 |
url |
http://dx.doi.org/10.1139/z99-159 http://www.nrcresearchpress.com/doi/pdf/10.1139/z99-159 |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Newfoundland |
genre_facet |
Newfoundland |
op_source |
Canadian Journal of Zoology volume 77, issue 11, page 1682-1689 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/z99-159 |
container_title |
Canadian Journal of Zoology |
container_volume |
77 |
container_issue |
11 |
container_start_page |
1682 |
op_container_end_page |
1689 |
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1785557810564562944 |