Data

Physiological Tolerances of Some Antarctic Zooplanktons

Australian Ocean Data Network
Burton, H. ; BURTON, HARRY
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ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=http://data.aad.gov.au/metadata/records/ASAC_308&rft.title=Physiological Tolerances of Some Antarctic Zooplanktons&rft.identifier=http://data.aad.gov.au/metadata/records/ASAC_308&rft.publisher=Australian Antarctic Data Centre&rft.description=Colonisation of Lake Fletcher, a hypersaline, meromictic lake in the Vestfold Hills, Antarctica, by the calanoid copepod Drepanopus bispinosus, the cyclopoid copepod Oncea curvata and an undescribed cydippid ctenophore is discussed. In 1978, salinity direstly under the ice was 66 ppt and repeated net hauls found no zooplankton. In 1983, adults of D. bispinosus were found, and in 1984, a reproductively active population of this species. Surface water salinity in 1984 was 56 ppt. During winter 1986, surface salinity was 54 ppt and three zooplankton species (D. bispinosus, O curvata and an undescribed cydippid ctenophore) had established populations in the lake. In 1986/87, high tides caused nearby Taynaya Bay to flood into the lake, and three further species (the calanoid, Paralabidocera antarctica, and two harpacticoids, Harpacticus furcatus and Idomene sp.) were found in the lake. It appears that periodic flooding after 1978 caused a salinity decrease in the lake from 66 to 54 ppt, and this enabled some invertebrate species to maintain year-round populations, whereas others require marine incursions to re-establish summer only populations. The fields in this dataset are: Date Salinity Record SpeciesProgress Code: completedStatement: Start date given in temporal coverage is approximate only. The year is correct.&rft.creator=Burton, H. &rft.creator=BURTON, HARRY &rft.date=2000&rft.coverage=westlimit=78.2569; southlimit=-68.4516; eastlimit=78.2569; northlimit=-68.4516&rft.coverage=westlimit=78.2569; southlimit=-68.4516; eastlimit=78.2569; northlimit=-68.4516&rft_rights=This metadata record is publicly available.&rft_rights=These data are publicly available for download from the provided URL. Files are stored as excel spreadsheets.&rft_rights= https://creativecommons.org/licenses/by/4.0/legalcode&rft_rights=This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/). Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=ASAC_308 when using these data. http://creativecommons.org/licenses/by/4.0/).&rft_rights=Portable Network Graphic&rft_rights=https://i.creativecommons.org/l/by/3.0/88x31.png&rft_rights=Creative Commons by Attribution logo&rft_rights=Attribution 4.0 International (CC BY 4.0)&rft_rights=Legal code for Creative Commons by Attribution 4.0 International license&rft_rights=Attribution 4.0 International (CC BY 4.0)&rft_rights= https://creativecommons.org/licenses/by/4.0/legalcode&rft_subject=biota&rft_subject=geoscientificInformation&rft_subject=inlandWaters&rft_subject=oceans&rft_subject=EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SURFACE WATER > SURFACE WATER FEATURES > LAKES/RESERVOIRS&rft_subject=EARTH SCIENCE > OCEANS > COASTAL PROCESSES > SALTWATER INTRUSION&rft_subject=EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > AQUATIC ECOSYSTEMS > PLANKTON > ZOOPLANKTON&rft_subject=ANTARCTICA&rft_subject=DATE&rft_subject=HYPERSALINE&rft_subject=LAKE FLETCHER&rft_subject=LAKES&rft_subject=MARINE INCURSIONS&rft_subject=RECORD&rft_subject=SALINITY&rft_subject=SPECIES&rft_subject=VESTFOLD HILLS&rft_subject=ZOOPLANKTON&rft_subject=FIELD SURVEYS&rft_subject=AMD/AU&rft_subject=CEOS&rft_subject=AMD&rft_subject=CONTINENT > ANTARCTICA&rft_subject=GEOGRAPHIC REGION > POLAR&rft.type=dataset&rft.language=English Access the data
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Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=ASAC_308 when using these data.
http://creativecommons.org/licenses/by/4.0/).

Attribution 4.0 International (CC BY 4.0)

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This metadata record is publicly available.

These data are publicly available for download from the provided URL. Files are stored as excel spreadsheets.

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Brief description

Colonisation of Lake Fletcher, a hypersaline, meromictic lake in the Vestfold Hills, Antarctica, by the calanoid copepod Drepanopus bispinosus, the cyclopoid copepod Oncea curvata and an undescribed cydippid ctenophore is discussed. In 1978, salinity direstly under the ice was 66 ppt and repeated net hauls found no zooplankton. In 1983, adults of D. bispinosus were found, and in 1984, a reproductively active population of this species. Surface water salinity in 1984 was 56 ppt. During winter 1986, surface salinity was 54 ppt and three zooplankton species (D. bispinosus, O curvata and an undescribed cydippid ctenophore) had established populations in the lake. In 1986/87, high tides caused nearby Taynaya Bay to flood into the lake, and three further species (the calanoid, Paralabidocera antarctica, and two harpacticoids, Harpacticus furcatus and Idomene sp.) were found in the lake. It appears that periodic flooding after 1978 caused a salinity decrease in the lake from 66 to 54 ppt, and this enabled some invertebrate species to maintain year-round populations, whereas others require marine incursions to re-establish summer only populations. The fields in this dataset are: Date Salinity Record Species

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Progress Code: completed
Statement: Start date given in temporal coverage is approximate only. The year is correct.

Data time period: 1978-01-01 to 1987-02-20

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78.2569,-68.4516

78.2569,-68.4516

text: westlimit=78.2569; southlimit=-68.4516; eastlimit=78.2569; northlimit=-68.4516

Subjects
AMD | AMD/AU | ANTARCTICA | CEOS | CONTINENT > ANTARCTICA | DATE | EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > AQUATIC ECOSYSTEMS > PLANKTON > ZOOPLANKTON | EARTH SCIENCE > OCEANS > COASTAL PROCESSES > SALTWATER INTRUSION | EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SURFACE WATER > SURFACE WATER FEATURES > LAKES/RESERVOIRS | FIELD SURVEYS | GEOGRAPHIC REGION > POLAR | HYPERSALINE | LAKE FLETCHER | LAKES | MARINE INCURSIONS | RECORD | SALINITY | SPECIES | VESTFOLD HILLS | ZOOPLANKTON | biota | geoscientificInformation | inlandWaters | oceans |

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Identifiers
  • global : ASAC_308
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