We’re sorry, but GBIF doesn’t work properly without JavaScript enabled.
Our website has detected that you are using an outdated insecure browser that will prevent you from using the site. We suggest you upgrade to a modern browser.
{{nav.loginGreeting}}
  • Get data

      • Occurrences
      • Species
      • Datasets
      • Publishers
      • Trends
      • Citation guidance
  • Share

      • Publishing data
      • Dataset classes
      • Data quality
      • Data hosting
      • Become a publisher
      • Standards
      • Data papers
      • Citizen science
  • Tools

    • Publishers

      • IPT
      • Data validator
      • Suggest a dataset
      • Data repository

    • Users

      • GBIF API
      • Data processing
      • rgbif
      • MAXENT
      • Tools catalogue

    • GBIF labs

      • Species matching
      • Name parser
      • Sequence ID
      • Relative observation trends
      • GBIF data blog
  • Inside GBIF

    • About

      • What is GBIF?
      • The GBIF network
      • Become a member
      • Governance
      • Funders
      • Partnerships
      • Strategic plan
      • Contacts

    • News & outreach

      • News
      • Featured data use
      • Events
      • Ebbe Nielsen Challenge
      • Young Researchers Award
      • Newsletters and lists
      • Mentoring
      • Ambassadors
      • Community forum

    • Programmes & projects

      • CESP: Capacity Enhancement Support Programme
      • BID: Biodiversity Information for Development
      • BIFA: Biodiversity Information Fund for Asia
      • Northern Eurasia
      • Living Atlases
  • Admin

      • Registry console
  • User profile

Cape Darnley Early-Autumn Phytoplankton Bloom, March 2012

Citation

WESTWOOD K, DAVIDSON A, WRIGHT S, CONNELL D (2018). Cape Darnley Early-Autumn Phytoplankton Bloom, March 2012. Australian Antarctic Data Centre. Occurrence dataset https://doi.org/10.4225/15/5591f4c013316 accessed via GBIF.org on 2020-01-24.

Description

These data relate to a large-scale early-autumn phytoplankton bloom that occurred off Cape Darnley, East Antarctica, in March 2012. The bloom was detected by Dr Jan Lieser (Antarctic Climate and Ecosystems Cooperative Research Centre, ACE-CRC) through MODIS satellite and was opportunistically sampled from RSV Aurora Australis using the uncontaminated seawater line. Samples were analysed for protist species and abundances using light and scanning electron microscopy, and pigment analyses were conducted using high performance liquid chromatography. Additional water samples were taken for dissolved nutrient analyses.
Specific details of the files are: Cape Darnley Protist Counts Samples were preserved with 1 % vol:vol Lugols iodine and stored in glass bottles in the dark at 4 degrees C. Protists were identified and counted using phase and Nomarski interference optics using Olympus IX71 and IX81 inverted microscopes at 400X to 640X magnification. Bright field optics were also used to discriminate taxa that contained chloroplasts. Protistan taxa were counted in 20 randomly chosen fields of view, except for highly abundant taxa that were counted in a subset of the field of view defined by an ocular quadrant (Whipple grid). Cell biovolumes and carbon conversion statistics were used to calculate the cell biomass of protistan taxa/groups. Cape Darnley Fluorometer Calibration Fluorometer measurements from the ships underway system were calibrated using chlorophyll a readings determined through high performance liquid chromatography. A linear relationship was established between fluorometer v HPLC chlorophyll a measurements at the same sites. The linear equation was then used to convert all underway fluorometry data from the voyage. Cape Darnley Bloom HPLC Pigments CHEMTAX summary Major phytoplankton groups at each site determined through analysis of pigments using high performance liquid chromatography and CHEMTAX. Methods were according to that of Wright et al. (2010). Cape Darnley Bloom Nutrients Dissolved nutrient concentrations. Samples were analysed by the Department of Primary Industries, Parks, Water and Environment, 18 St. Johns Avenue, Newtown, Tasmania 7008. Cape Darnley Underway Data VOYAGE_04_0_201112 Raw underway data from Aurora Australis in the bloom region Cape Darnley Underway Data Maps Maps of the underway data in the bloom region Quality: We were only able to obtain samples through the uncontaminated seawater line, with the intake positioned at 4.8 m below the ship. However, we think the majority of the bloom was at the surface associated with ice. Our data therefore likely under-represents the true surface phenomenon. 2018-10-10 The original files was reformatted to fit OBIS/GBFI/IPT Biodiversity.AQ tracking standards, and a new datasheet “CapeDarnelyBloom_2012.csv” was created. The new dataset contains datasetID, occurrenceID, recordNumber, verbatimLatitude, verbatimLongitude, decimalLatitude, decimalLongitude, locationID, locality, eventRemark, eventDate, year, month, basisOfRecord, occurrenceStatus, organismQuantity, organismQuantityType, preparations, institutionCode, continent. The lowest taxonomical rank of the species identified that could be determined is provided, after matched in WoRMS (World Register of Marine Species).

Taxonomic Coverages

Species of phytoplankton were identified using a Olympus IX71 and IX81 inverted microscopes
  1. Chaetoceros
    rank: genus
  2. Fragilariopsis
    rank: genus
  3. Bacillariaceae
    rank: family
  4. Protozoa
    rank: kingdom
  5. Gyrodinium
    rank: genus
  6. Dinoflagelata
    rank: infragenericname
  7. Choanoflagellatea
    rank: class
  8. Cryptophyceae
    rank: class
  9. Oligotrichida
    rank: class

Geographic Coverages

OCEAN > SOUTHERN OCEAN GEOGRAPHIC REGION > POLAR

Bibliographic Citations

  1. Lieser, J.L., Curran, M.A.J., Bowie, A.R., Chever, F., Davidson, A.T., Doust, S., Fraser, A.D., Galton-Fenzi, B.K., Massom, R.A., Meiners, K.M., Melbourne-Thomas, J., Reid, P.A., Strutton, P.G., Vance, T.R., Vancoppenolle, M., Westwood, K.J., Wright, S.W. (2015) Large scale algal blooms associated with Antarctic sea-ice growth in autumn. Geophysical Research Letters. -
  2. Wright, S., van den Enden, R., Pearce, I., Davidson, A.T., Scott., F.J., Westwood, K.J. (2010) Phytoplankton community structure and stocks in the Southern Ocean (30-80E) determined by CHEMTAX analysis of HPLC pigment signatures. Deep Sea Research II. 57, 758-778 - DOI: 10.1016/j.dsr2.2009.06.015

Contacts

KAREN WESTWOOD
originator
position: INVESTIGATOR
Australian Antarctic Division 203 Channel Highway
Kingston
7050
Tasmania
AU
email: karen.westwood@aad.gov.au
ANDREW DAVIDSON
originator
position: INVESTIGATOR
Australian Antarctic Division 203 Channel Highway
Kingston
7050
Tasmania
AU
email: andrew.davidson@aad.gov.au
SIMON WRIGHT
originator
position: INVESTIGATOR
Australian Antarctic Division 203 Channel Highway
Kingston
7050
Tasmania
AU
email: simon.wright@aad.gov.au
DAVE CONNELL
metadata author
position: DIF AUTHOR
Australian Antarctic Division 203 Channel Highway
Kingston
7050
Tasmania
AU
email: dave.connell@aad.gov.au
DATA OFFICER AADC
distributor
position: DATA CENTER CONTACT
Australian Antarctic Data Centre, Australia
Australian Antarctic Division 203 Channel Highway
Kingston
7050
Tasmania
AU
email: metadata@aad.gov.au
KAREN WESTWOOD
administrative point of contact
position: TECHNICAL CONTACT
Australian Antarctic Division 203 Channel Highway
Kingston
7050
Tasmania
AU
email: karen.westwood@aad.gov.au
ANDREW DAVIDSON
administrative point of contact
position: TECHNICAL CONTACT
Australian Antarctic Division 203 Channel Highway
Kingston
7050
Tasmania
AU
email: andrew.davidson@aad.gov.au
SIMON WRIGHT
administrative point of contact
position: TECHNICAL CONTACT
Australian Antarctic Division 203 Channel Highway
Kingston
7050
Tasmania
AU
email: simon.wright@aad.gov.au
What is GBIF? API FAQ Newsletter Privacy Terms and agreements Citation Acknowledgements
Contact GBIF Secretariat Universitetsparken 15 DK-2100 Copenhagen Ø Denmark