Distribution of surface phytoplankton between New Zealand and Antarctica, December 1957

Latest version published by The National Institute of Water and Atmospheric Research (NIWA) on 08 August 2018 The National Institute of Water and Atmospheric Research (NIWA)

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During the Trans-Antarctic Expedition 1955-1958, the distribution of phytoplankton in the southern ocean and Ross Sea was investigated from fifty-seven samples taken at roughly 30-mile intervals between southern New Zealand and McMurdo Sound. The greatest diversity of species occurred between 55° and 60°S, just north of the Antarctic Convergence. Maximum concentration was found at 70° to 72°S, where Corethron crioplhilum was profoundly dominant. A predominately sub-Antarctic assemblage between 52° and 64°S was dominated by nine species not found in significant quantities elsewhere in the series of samples. Only two of these extended in appreciable numbers into the Ross Sea. Six of the commonest species ranged from sub-Antarctic waters southwards across the Antarctic Convergence, and two were not recorded north of the Ross Sea.

Data Records

The data in this occurrence resource has been published as a Darwin Core Archive (DwC-A), which is a standardized format for sharing biodiversity data as a set of one or more data tables. The core data table contains 666 records.

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How to cite

Researchers should cite this work as follows:

Southwestern Pacific OBIS (2014). Distribution of surface phytoplankton between New Zealand and Antarctica, December 1957 . Southwestern Pacific OBIS, National Institute of Water and Atmospheric Research (NIWA), Wellington, New Zealand, 666 records, Online http://nzobisipt.niwa.co.nz/resource.do?r=mbis_tae released on June 29, 2014.


Researchers should respect the following rights statement:

The publisher and rights holder of this work is The National Institute of Water and Atmospheric Research (NIWA). To the extent possible under law, the publisher has waived all rights to these data and has dedicated them to the Public Domain (CC0 1.0). Users may copy, modify, distribute and use the work, including for commercial purposes, without restriction.

GBIF Registration

This resource has been registered with GBIF, and assigned the following GBIF UUID: 8cd0f2da-8ffd-47d1-8920-8557a3658e4d.  The National Institute of Water and Atmospheric Research (NIWA) publishes this resource, and is itself registered in GBIF as a data publisher endorsed by GBIF New Zealand.


Occurrence; Observation


Kevin Mackay
  • Metadata Provider
  • Originator
  • Point Of Contact
Marine Database Manager
Private Bag 14901, Kilbirnie

Geographic Coverage

Between New Zealand and Antarctica

Bounding Coordinates South West [-77.667, 165.5], North East [-48, 180]

Taxonomic Coverage

Phytoplankton (diatoms and dinoflagellates)

Kingdom Chromista

Temporal Coverage

Start Date / End Date 1957-12-19 / 1957-12-31

Project Data

No Description available

Title Trans-Antarctic Expedition 1955-58
Funding N/A
Study Area Description The waters between New Zealand and Antarctica
Design Description During a cruises of H.M.N.Z.S. Endeavour from 18th to 31st December 1957 forming part of the Trans-Antarctic Expedition, sixty-three 2-ounce jars of phytoplankton were collected between Dunedin and McMurdo Sound.

The personnel involved in the project:

Vivienne Cassie
  • Author

Sampling Methods

Seawater from the ship's firemains were run through nets with two hundred meshes to the inch, and the tap at 1/4 to 1/3 pressure for times varying from ten to twenty minutes. The samples were preserved in two to four per cent neutral formalin and sea surface temperatures recorded at the time of sampling.

Study Extent Surface waters between Dunedin, New Zealand, and McMurdo Sound, Antarctica.
Quality Control The scientific names have been mapped to the World Register of Marine Species (WoRMS), using the online taxon match tool.

Method step description:

  1. Data were digitised from the Trans-Antarctic Expedition Scientific Report No. 7.

Bibliographic Citations

  1. Cassie, V. 1962. Distribution of surface phytoplankton between New Zealand and Antarctica December 1957. Trans-Antarctic Expedition 1955-1958 Scientific Reports No. 7. Trans-Antarctic Expedition Committee, London, 1963. 13pp. Cassie (1962)

Additional Metadata

marine, harvested by iOBIS

Alternative Identifiers 8cd0f2da-8ffd-47d1-8920-8557a3658e4d