From Australian Oceans Data Network
JSON RDF ISO19115-3 XML

Physiological Tolerances of Some Antarctic Zooplanktons

Created 13/03/2025

Updated 13/03/2025

JSON RDF ISO19115-3 XML

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

Files and APIs

Tags

Additional Info

Field Value
Title Physiological Tolerances of Some Antarctic Zooplanktons
Language eng
Licence notspecified
Landing Page https://devweb.dga.links.com.au/data/dataset/f527b0a5-f965-4ebe-9cfe-8979e473815a
Contact Point
CSIRO Oceans & Atmosphere
metadata@aad.gov.au
Reference Period 01/01/1978 - 20/02/1987
Geospatial Coverage {"type": "Point", "coordinates": [78.2569, -68.4516]}
Data Portal data.gov.au

Data Source

This dataset was originally found on data.gov.au "Physiological Tolerances of Some Antarctic Zooplanktons". Please visit the source to access the original metadata of the dataset:
https://devweb.dga.links.com.au/data/dataset/physiological-tolerances-of-some-antarctic-zooplanktons

Original dataset
Dataset copies

No duplicate datasets found.