Effect of Environmental Factors on Population Dynamics of Drepanopus Bispinosus in Burton Lake, Antarctica
The population dynamics of Drepanopus bispinosus (Calanoida: Copepoda) was studied throughout the year of December 1983 - January 1985 in Burton Lake, a littoral saline lake on Vestfold Hills, Antarctica, and the environmental factors of the lake were observed simultaneously. D. bispinosus is univol...
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Polar Research Institute of China - PRIC
1991
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Online Access: | http://library.arcticportal.org/2036/ http://library.arcticportal.org/2036/1/A199102005.pdf |
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ftarcticportal:oai:generic.eprints.org:2036 2023-05-15T13:05:25+02:00 Effect of Environmental Factors on Population Dynamics of Drepanopus Bispinosus in Burton Lake, Antarctica Zipan, Wang 1991-12 application/pdf http://library.arcticportal.org/2036/ http://library.arcticportal.org/2036/1/A199102005.pdf en eng Polar Research Institute of China - PRIC http://library.arcticportal.org/2036/1/A199102005.pdf Zipan, Wang (1991) Effect of Environmental Factors on Population Dynamics of Drepanopus Bispinosus in Burton Lake, Antarctica. Advances in Polar Science, 2 (2). pp. 47-58. Article PeerReviewed 1991 ftarcticportal 2023-04-05T22:52:04Z The population dynamics of Drepanopus bispinosus (Calanoida: Copepoda) was studied throughout the year of December 1983 - January 1985 in Burton Lake, a littoral saline lake on Vestfold Hills, Antarctica, and the environmental factors of the lake were observed simultaneously. D. bispinosus is univoltine. Its population life cycle could be in 20-21 months and reproductive activity stays from winter to early summer. The adults (male and female) and nauplii mainly form the winter population. Adult females are instead of male and, copepodites are instead of nauplii in summer population. Then it consists of copepodites mainly in stages II-V from late summer through autumn. The density of population components considerably varies for their whole life. Most of nauplii appearing in winter may not develop and transform into further stages under the restrictive conditions, such as low oxygen content and scarce food. Earlier stage copepodites of new generation appear largely in summer, when the lake is rich in oxygen content and phytoplankton. The adult females decrease markedly after their reproductive activities, as the sharp salinity diluting in early summer. This density variation of population compositions is mostly related with the change of environmental factors in the lake. The conception is supported by the data obtained from another saline lake on the Vestfold Hills. Article in Journal/Newspaper Advances in Polar Science Antarc* Antarctica Polar Science Polar Science Arctic Portal Library Burton ENVELOPE(166.733,166.733,-72.550,-72.550) Burton Lake ENVELOPE(78.100,78.100,-68.626,-68.626) Saline Lake ENVELOPE(-111.528,-111.528,57.081,57.081) Vestfold Vestfold Hills |
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Open Polar |
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Arctic Portal Library |
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ftarcticportal |
language |
English |
description |
The population dynamics of Drepanopus bispinosus (Calanoida: Copepoda) was studied throughout the year of December 1983 - January 1985 in Burton Lake, a littoral saline lake on Vestfold Hills, Antarctica, and the environmental factors of the lake were observed simultaneously. D. bispinosus is univoltine. Its population life cycle could be in 20-21 months and reproductive activity stays from winter to early summer. The adults (male and female) and nauplii mainly form the winter population. Adult females are instead of male and, copepodites are instead of nauplii in summer population. Then it consists of copepodites mainly in stages II-V from late summer through autumn. The density of population components considerably varies for their whole life. Most of nauplii appearing in winter may not develop and transform into further stages under the restrictive conditions, such as low oxygen content and scarce food. Earlier stage copepodites of new generation appear largely in summer, when the lake is rich in oxygen content and phytoplankton. The adult females decrease markedly after their reproductive activities, as the sharp salinity diluting in early summer. This density variation of population compositions is mostly related with the change of environmental factors in the lake. The conception is supported by the data obtained from another saline lake on the Vestfold Hills. |
format |
Article in Journal/Newspaper |
author |
Zipan, Wang |
spellingShingle |
Zipan, Wang Effect of Environmental Factors on Population Dynamics of Drepanopus Bispinosus in Burton Lake, Antarctica |
author_facet |
Zipan, Wang |
author_sort |
Zipan, Wang |
title |
Effect of Environmental Factors on Population Dynamics of Drepanopus Bispinosus in Burton Lake, Antarctica |
title_short |
Effect of Environmental Factors on Population Dynamics of Drepanopus Bispinosus in Burton Lake, Antarctica |
title_full |
Effect of Environmental Factors on Population Dynamics of Drepanopus Bispinosus in Burton Lake, Antarctica |
title_fullStr |
Effect of Environmental Factors on Population Dynamics of Drepanopus Bispinosus in Burton Lake, Antarctica |
title_full_unstemmed |
Effect of Environmental Factors on Population Dynamics of Drepanopus Bispinosus in Burton Lake, Antarctica |
title_sort |
effect of environmental factors on population dynamics of drepanopus bispinosus in burton lake, antarctica |
publisher |
Polar Research Institute of China - PRIC |
publishDate |
1991 |
url |
http://library.arcticportal.org/2036/ http://library.arcticportal.org/2036/1/A199102005.pdf |
long_lat |
ENVELOPE(166.733,166.733,-72.550,-72.550) ENVELOPE(78.100,78.100,-68.626,-68.626) ENVELOPE(-111.528,-111.528,57.081,57.081) |
geographic |
Burton Burton Lake Saline Lake Vestfold Vestfold Hills |
geographic_facet |
Burton Burton Lake Saline Lake Vestfold Vestfold Hills |
genre |
Advances in Polar Science Antarc* Antarctica Polar Science Polar Science |
genre_facet |
Advances in Polar Science Antarc* Antarctica Polar Science Polar Science |
op_relation |
http://library.arcticportal.org/2036/1/A199102005.pdf Zipan, Wang (1991) Effect of Environmental Factors on Population Dynamics of Drepanopus Bispinosus in Burton Lake, Antarctica. Advances in Polar Science, 2 (2). pp. 47-58. |
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1766382525904584704 |