Seasonal abundance and size variation in Antarctic populations of the Cladoceran Daphniopsis studeri
Continental freshwater lakes of Antarctica are characterized by species-poor biota (Heywood 1977). The plankton is dominated by algae, bacteria and protozoa (Koob & Leister 1972, Parker et al. 1982, Laybourn-Parry et al. 1991). Three species of micro-crustacea have been reported from Eastern Ant...
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Language: | English |
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Cambridge University Press (CUP)
1995
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Online Access: | http://dx.doi.org/10.1017/s095410209500054x https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S095410209500054X |
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crcambridgeupr:10.1017/s095410209500054x 2024-05-12T07:54:37+00:00 Seasonal abundance and size variation in Antarctic populations of the Cladoceran Daphniopsis studeri Bayliss, P.R. Laybourn-Parry, J. 1995 http://dx.doi.org/10.1017/s095410209500054x https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S095410209500054X en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 7, issue 4, page 393-394 ISSN 0954-1020 1365-2079 Geology Ecology, Evolution, Behavior and Systematics Oceanography journal-article 1995 crcambridgeupr https://doi.org/10.1017/s095410209500054x 2024-04-18T06:54:24Z Continental freshwater lakes of Antarctica are characterized by species-poor biota (Heywood 1977). The plankton is dominated by algae, bacteria and protozoa (Koob & Leister 1972, Parker et al. 1982, Laybourn-Parry et al. 1991). Three species of micro-crustacea have been reported from Eastern Antarctica, the cladoceron Daphniopsis studeri , Ruhe and two copepods, Acanthocyclops mirnyi , Borutsky & Vinogradov, and Boeckella poppei , Mrazek (Borutsky & Vinogradov 1957, Akatova 1964, Bayley & Burton 1993). The origin of D. studeri in lakes of the Vestfold Hills has been documented (Laybourn-Parry & Marchant 1992) and it is generally thought that populations are derived from subantarctic islands and mainland South America. Populations of D. studeri from three freshwater lakes of the Vestfold Hills, have been studied in more detail in a preliminary survey of its occurrence and basic life cycle (Laybourn-Parry & Marchant 1992) during which it was observed that the population consisted entirely of parthenogenic females appearing to produce only subitaneous eggs. Herbert (1981) reported that some Arctic and Antarctic cladocerans were capable of producing ephippial (wintering) eggs asexually. D. studeri also occurs in some of the brackish lakes of the Vestfold Hills with salinities of <4 ppt. These populations were found to possess male individuals (J. Gibson, personal communication 1991) suggesting a sexual cycle and production of resting eggs. There is no evidence of this in the freshwater lakes of the region. Article in Journal/Newspaper Antarc* Antarctic Antarctic Science Antarctica Arctic Copepods Cambridge University Press Arctic Antarctic Vestfold Hills Vestfold Burton ENVELOPE(166.733,166.733,-72.550,-72.550) Parry ENVELOPE(-62.417,-62.417,-64.283,-64.283) Boeckella ENVELOPE(-56.999,-56.999,-63.404,-63.404) Heywood ENVELOPE(-59.683,-59.683,-62.317,-62.317) Koob ENVELOPE(-169.033,-169.033,-84.883,-84.883) Antarctic Science 7 4 393 394 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Geology Ecology, Evolution, Behavior and Systematics Oceanography Bayliss, P.R. Laybourn-Parry, J. Seasonal abundance and size variation in Antarctic populations of the Cladoceran Daphniopsis studeri |
topic_facet |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Continental freshwater lakes of Antarctica are characterized by species-poor biota (Heywood 1977). The plankton is dominated by algae, bacteria and protozoa (Koob & Leister 1972, Parker et al. 1982, Laybourn-Parry et al. 1991). Three species of micro-crustacea have been reported from Eastern Antarctica, the cladoceron Daphniopsis studeri , Ruhe and two copepods, Acanthocyclops mirnyi , Borutsky & Vinogradov, and Boeckella poppei , Mrazek (Borutsky & Vinogradov 1957, Akatova 1964, Bayley & Burton 1993). The origin of D. studeri in lakes of the Vestfold Hills has been documented (Laybourn-Parry & Marchant 1992) and it is generally thought that populations are derived from subantarctic islands and mainland South America. Populations of D. studeri from three freshwater lakes of the Vestfold Hills, have been studied in more detail in a preliminary survey of its occurrence and basic life cycle (Laybourn-Parry & Marchant 1992) during which it was observed that the population consisted entirely of parthenogenic females appearing to produce only subitaneous eggs. Herbert (1981) reported that some Arctic and Antarctic cladocerans were capable of producing ephippial (wintering) eggs asexually. D. studeri also occurs in some of the brackish lakes of the Vestfold Hills with salinities of <4 ppt. These populations were found to possess male individuals (J. Gibson, personal communication 1991) suggesting a sexual cycle and production of resting eggs. There is no evidence of this in the freshwater lakes of the region. |
format |
Article in Journal/Newspaper |
author |
Bayliss, P.R. Laybourn-Parry, J. |
author_facet |
Bayliss, P.R. Laybourn-Parry, J. |
author_sort |
Bayliss, P.R. |
title |
Seasonal abundance and size variation in Antarctic populations of the Cladoceran Daphniopsis studeri |
title_short |
Seasonal abundance and size variation in Antarctic populations of the Cladoceran Daphniopsis studeri |
title_full |
Seasonal abundance and size variation in Antarctic populations of the Cladoceran Daphniopsis studeri |
title_fullStr |
Seasonal abundance and size variation in Antarctic populations of the Cladoceran Daphniopsis studeri |
title_full_unstemmed |
Seasonal abundance and size variation in Antarctic populations of the Cladoceran Daphniopsis studeri |
title_sort |
seasonal abundance and size variation in antarctic populations of the cladoceran daphniopsis studeri |
publisher |
Cambridge University Press (CUP) |
publishDate |
1995 |
url |
http://dx.doi.org/10.1017/s095410209500054x https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S095410209500054X |
long_lat |
ENVELOPE(166.733,166.733,-72.550,-72.550) ENVELOPE(-62.417,-62.417,-64.283,-64.283) ENVELOPE(-56.999,-56.999,-63.404,-63.404) ENVELOPE(-59.683,-59.683,-62.317,-62.317) ENVELOPE(-169.033,-169.033,-84.883,-84.883) |
geographic |
Arctic Antarctic Vestfold Hills Vestfold Burton Parry Boeckella Heywood Koob |
geographic_facet |
Arctic Antarctic Vestfold Hills Vestfold Burton Parry Boeckella Heywood Koob |
genre |
Antarc* Antarctic Antarctic Science Antarctica Arctic Copepods |
genre_facet |
Antarc* Antarctic Antarctic Science Antarctica Arctic Copepods |
op_source |
Antarctic Science volume 7, issue 4, page 393-394 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s095410209500054x |
container_title |
Antarctic Science |
container_volume |
7 |
container_issue |
4 |
container_start_page |
393 |
op_container_end_page |
394 |
_version_ |
1798850821557846016 |