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Cape Darnley Early-Autumn Phytoplankton Bloom, March 2012

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

Simple

Identification info

Alternate title
Cape Darnley Early-Autumn Phytoplankton Bloom, March 2012
Date (Publication)
2018-10-10
Edition
1
Citation identifier
Dataset DOI

Title
Information and documentation - Digital object identifier system
Date (Publication)
2012-04-23
Citation identifier
ISO 26324:2012

Citation identifier
doi:10.4225/15/5591F4C013316

Originator

Westwood, K.J., Davidson, A.T. and Wright, S.

Publisher

Australian Antarctic Data Centre

Principal investigator

WESTWOOD, KAREN JILLIAN
Australian Antarctic Division
203 Channel Highway
Kingston
Tasmania
7050
Australia
+61 3 6232 3156

Principal investigator

DAVIDSON, ANDREW TIMOTHY
Australian Antarctic Division
203 Channel Highway
Kingston
Tasmania
7050
Australia

Principal investigator

WRIGHT, SIMON
Australian Antarctic Division
203 Channel Highway
Kingston
Tasmania
7050
Australia

Collaborator

WESTWOOD, KAREN JILLIAN
Australian Antarctic Division
203 Channel Highway
Kingston
Tasmania
7050
Australia
+61 3 6232 3156

Collaborator

DAVIDSON, ANDREW TIMOTHY
Australian Antarctic Division
203 Channel Highway
Kingston
Tasmania
7050
Australia

Collaborator

WRIGHT, SIMON
Australian Antarctic Division
203 Channel Highway
Kingston
Tasmania
7050
Australia
Name
CAASM Metadata
Website
https://data.aad.gov.au/metadata/records/Cape_Darnley_Bloom

Status
Completed

Custodian

AU/AADC > Australian Antarctic Data Centre, Australia - AADC, DATA OFFICER (DATA CENTER CONTACT)
Australian Antarctic Division
203 Channel Highway
Kingston
Tasmania
7050
Australia
+61 3 6232 3244
+61 3 6232 3351 (facsimile)
Topic category
  • Biota
  • Oceans

Extent

N
S
E
W


Extent

Description
Temporal Coverage

Temporal extent

TimePeriod
2012-03-04 2012-03-07
Title
Large scale algal blooms associated with Antarctic sea-ice growth in autumn
Date (Publication)
2015

Author

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.
Name
Geophysical Research Letters
Title
Phytoplankton community structure and stocks in the Southern Ocean (30-80E) determined by CHEMTAX analysis of HPLC pigment signatures.
Date (Publication)
2010
Citation identifier
57

Author

Wright, S., van den Enden, R., Pearce, I., Davidson, A.T., Scott., F.J., Westwood, K.J.
Name
Deep Sea Research II
Page
758-778
NASA/GCMD Earth Science Keywords
  • EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > PROTISTS > PLANKTON > PHYTOPLANKTON
  • EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > AQUATIC ECOSYSTEMS > PLANKTON > PHYTOPLANKTON
Keywords
  • Bloom
NASA/GCMD Earth Science Keywords
  • FLUOROMETERS
NASA/GCMD Earth Science Keywords
  • SHIPS
  • R/V AA > R/V Aurora Australis
NASA/GCMD Earth Science Keywords
  • AMD
  • AMD/AU
  • CEOS
  • ACE/CRC
NASA/GCMD Earth Science Keywords
  • OCEAN > SOUTHERN OCEAN
  • GEOGRAPHIC REGION > POLAR

Resource constraints

Use limitation
This metadata record is publicly available.

Resource constraints

Access constraints
licence
Other constraints
These data are publicly available for download from the provided URL.

Resource constraints

File type
Portable Network Graphic
Linkage
Creative Commons by Attribution logo

Title
Attribution 4.0 International (CC BY 4.0)
Website
https://creativecommons.org/licenses/by/4.0/legalcode

Legal code for Creative Commons by Attribution 4.0 International license

Use constraints
licence
Other constraints
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=Cape_Darnley_Bloom when using these data.
Language
English
Character encoding
UTF8

Distribution Information

Distributor

Distributor

AU/AADC > Australian Antarctic Data Centre, Australia - AADC, DATA OFFICER (DATA CENTER CONTACT)
Australian Antarctic Division
203 Channel Highway
Kingston
Tasmania
7050
Australia
+61 3 6232 3244
+61 3 6232 3351 (facsimile)

Distributor

Fees
Free
Planned available datetime
2018-10-10T00:00:00
Units of distribution
MB
Transfer size
7.1
Distribution format
  • Excel, Word, Powerpoint

OnLine resource
GET DATA

Download point for the data

OnLine resource
VIEW RELATED INFORMATION

Citation reference for this metadata record and dataset

Resource lineage

Statement
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).
Hierarchy level
Dataset
Maintenance and update frequency
As needed
Maintenance note
2015-06-29 - record created by Dave Connell from a template completed by Karen Westwood. 2018-10-10 - record updated by Dave Connell to publicly release the data.

Metadata

Metadata identifier
string/Cape_Darnley_Bloom

Language
English
Character encoding
UTF8

Author

CONNELL, DAVE J.
Australian Antarctic Division
203 Channel Highway
Kingston
Tasmania
7050
Australia
+61 3 6232 3244
+61 3 6232 3351 (facsimile)

Sponsor

Australian Antarctic Division

Owner

AADC

Type of resource

Resource scope
Dataset

Alternative metadata reference

Title
gov.nasa.gsfc.gcmd
Citation identifier
bc6c73e9-d517-497f-9f09-797255ae87fb

Alternative metadata reference

Title
gov.nasa.gsfc.gcmd
Date (Last Revision)
2015-11-30T07:09:42

Identifier

Description
metadata.extraction_date

Alternative metadata reference

Title
gov.nasa.gsfc.gcmd
Citation identifier
8.6

Metadata linkage
http://data.aad.gov.au/metadata/records/Cape_Darnley_Bloom

Point of truth for the metadata record

Date info (Creation)
2015-06-28T00:00:00
Date info (Last Update)
2018-10-10

Metadata standard

Title
ISO 19115-3
Edition
2014
Other citation details
Version 1
Title
DIF to ISO 19115-1 Profile
 
 

Overviews

Spatial extent

N
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W


Keywords


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