Reproductive behavior of the gymnosomatous pteropod Clione antarctica
The pteropod Clione antarctica (Mollusca: Gastropoda) was examined in McMurdo Sound, Antarctica, to evaluate population densities and proportions of reproductively mature and copulating individuals. Three pteropod 'swarms' estimated to consist of approximately 7.9 pteropods per m 3 were sa...
| Main Authors: | , |
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| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
1996
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| Subjects: | |
| Online Access: | http://repository.ust.hk/ir/Record/1783.1-26049 http://lbdiscover.ust.hk/uresolver?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rfr_id=info:sid/HKUST:SPI&rft.genre=article&rft.issn=0168-8170&rft.volume=29&rft.issue=2&rft.date=1996&rft.spage=143&rft.aulast=Bryan&rft.aufirst=P.J.&rft.atitle=Reproductive+behavior+of+the+gymnosomatous+pteropod+Clione+antarctica&rft.title=Invertebrate+Reproduction+and+Development http://www.scopus.com/record/display.url?eid=2-s2.0-0029911182&origin=inward |
| Summary: | The pteropod Clione antarctica (Mollusca: Gastropoda) was examined in McMurdo Sound, Antarctica, to evaluate population densities and proportions of reproductively mature and copulating individuals. Three pteropod 'swarms' estimated to consist of approximately 7.9 pteropods per m 3 were sampled on September 30, October 8 and 26, 1993. Approximately 36 % of the swarms were reproductively mature individuals. In situ observations indicated that on average 8% of the individuals were paired and copulating. Individual pteropods exhibited directional movement toward conspecifics. Ninety-five percent of pteropod pairs observed (n = 40) separated by a distance of 1 cm initiated copulation. |
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