Reproductive aspects of two bythograeid crab species from hydrothermal vents in the Pacific-Antarctic Ridge
Bythograea laubieri, B. vrijenhoeki and alvinellid polychaetes dominate the vent fauna of the Pacific-Antarctic Ridge. We studied gonadal development in females of both crabs. They have ovary microstructures characteristic of brachyuran decapods. The ovaries are paired organs overlying the hepatopan...
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Inter Research
2009
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Online Access: | http://hdl.handle.net/10773/6572 https://doi.org/10.3354/meps07858 |
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ftria:oai:ria.ua.pt:10773/6572 2023-05-15T14:04:22+02:00 Reproductive aspects of two bythograeid crab species from hydrothermal vents in the Pacific-Antarctic Ridge Hilario, A Vilar, S Cunha, MR Tyler, P 2009-03-12 http://hdl.handle.net/10773/6572 https://doi.org/10.3354/meps07858 eng eng Inter Research FCT - SFRH/BPD/22383/2005 0171-8630 http://hdl.handle.net/10773/6572 doi:10.3354/meps07858 restrictedAccess Bythograeid crab Gonad development Hydrothermal vent Pacific-Antarctic Ridge article 2009 ftria https://doi.org/10.3354/meps07858 2022-05-25T18:32:15Z Bythograea laubieri, B. vrijenhoeki and alvinellid polychaetes dominate the vent fauna of the Pacific-Antarctic Ridge. We studied gonadal development in females of both crabs. They have ovary microstructures characteristic of brachyuran decapods. The ovaries are paired organs overlying the hepatopancreas beneath the carapace. Oogonia proliferate from the germinal epithelium and develop into previtellogenic oocytes that grow to 60 mu m before undergoing vitellogenesis. The observed maximum sizes of mature oocytes were 209 mu m in B. laubieri and 138 mu m in B. vrijenhoeki. No ovigerous females were found in the samples, which agrees with the segregation behaviour of ovigerous females away from the direct influence of the active chimney in some related species. In contrast to other species of bythograeid crabs, the oocyte size-frequency data suggest that B. laubieri and B, vrijenhoeki lack synchrony in reproduction of the population as a whole. Synchrony and seasonality in reproduction of B. thermydron have been linked to the formation of phytoplankton blooms in surface waters. We suggest that the biogeography of bythograeid crabs is determined by contrasting oceanographic regimes that influence the reproductive patterns observed in different species. FCT - SFRH/BPD/22383/2005 Article in Journal/Newspaper Antarc* Antarctic Repositório Institucional da Universidade de Aveiro (RIA) Antarctic Pacific Marine Ecology Progress Series 378 153 160 |
institution |
Open Polar |
collection |
Repositório Institucional da Universidade de Aveiro (RIA) |
op_collection_id |
ftria |
language |
English |
topic |
Bythograeid crab Gonad development Hydrothermal vent Pacific-Antarctic Ridge |
spellingShingle |
Bythograeid crab Gonad development Hydrothermal vent Pacific-Antarctic Ridge Hilario, A Vilar, S Cunha, MR Tyler, P Reproductive aspects of two bythograeid crab species from hydrothermal vents in the Pacific-Antarctic Ridge |
topic_facet |
Bythograeid crab Gonad development Hydrothermal vent Pacific-Antarctic Ridge |
description |
Bythograea laubieri, B. vrijenhoeki and alvinellid polychaetes dominate the vent fauna of the Pacific-Antarctic Ridge. We studied gonadal development in females of both crabs. They have ovary microstructures characteristic of brachyuran decapods. The ovaries are paired organs overlying the hepatopancreas beneath the carapace. Oogonia proliferate from the germinal epithelium and develop into previtellogenic oocytes that grow to 60 mu m before undergoing vitellogenesis. The observed maximum sizes of mature oocytes were 209 mu m in B. laubieri and 138 mu m in B. vrijenhoeki. No ovigerous females were found in the samples, which agrees with the segregation behaviour of ovigerous females away from the direct influence of the active chimney in some related species. In contrast to other species of bythograeid crabs, the oocyte size-frequency data suggest that B. laubieri and B, vrijenhoeki lack synchrony in reproduction of the population as a whole. Synchrony and seasonality in reproduction of B. thermydron have been linked to the formation of phytoplankton blooms in surface waters. We suggest that the biogeography of bythograeid crabs is determined by contrasting oceanographic regimes that influence the reproductive patterns observed in different species. FCT - SFRH/BPD/22383/2005 |
format |
Article in Journal/Newspaper |
author |
Hilario, A Vilar, S Cunha, MR Tyler, P |
author_facet |
Hilario, A Vilar, S Cunha, MR Tyler, P |
author_sort |
Hilario, A |
title |
Reproductive aspects of two bythograeid crab species from hydrothermal vents in the Pacific-Antarctic Ridge |
title_short |
Reproductive aspects of two bythograeid crab species from hydrothermal vents in the Pacific-Antarctic Ridge |
title_full |
Reproductive aspects of two bythograeid crab species from hydrothermal vents in the Pacific-Antarctic Ridge |
title_fullStr |
Reproductive aspects of two bythograeid crab species from hydrothermal vents in the Pacific-Antarctic Ridge |
title_full_unstemmed |
Reproductive aspects of two bythograeid crab species from hydrothermal vents in the Pacific-Antarctic Ridge |
title_sort |
reproductive aspects of two bythograeid crab species from hydrothermal vents in the pacific-antarctic ridge |
publisher |
Inter Research |
publishDate |
2009 |
url |
http://hdl.handle.net/10773/6572 https://doi.org/10.3354/meps07858 |
geographic |
Antarctic Pacific |
geographic_facet |
Antarctic Pacific |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
FCT - SFRH/BPD/22383/2005 0171-8630 http://hdl.handle.net/10773/6572 doi:10.3354/meps07858 |
op_rights |
restrictedAccess |
op_doi |
https://doi.org/10.3354/meps07858 |
container_title |
Marine Ecology Progress Series |
container_volume |
378 |
container_start_page |
153 |
op_container_end_page |
160 |
_version_ |
1766275406574387200 |