Cape Darnley Early-Autumn Phytoplankton Bloom, March 2012

Occurrence
Dernière version Publié par Australian Antarctic Data Centre le mars 6, 2020 Australian Antarctic Data Centre
Date de publication:
6 mars 2020
Licence:
CC-BY 4.0

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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 regionQuality: 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).

Enregistrements de données

Les données de cette ressource occurrence ont été publiées sous forme dune Archive Darwin Core (Darwin Core Archive ou DwC-A), le format standard pour partager des données de biodiversité en tant quensemble dun ou plusieurs tableurs de données. Le tableur de données du cœur de standard (core) contient 91 enregistrements.

Cet IPT archive les données et sert donc de dépôt de données. Les données et métadonnées de la ressource sont disponibles pour téléchargement dans la section téléchargements. Le tableau des versions liste les autres versions de chaque ressource rendues disponibles de façon publique et permet de tracer les modifications apportées à la ressource au fil du temps.

Versions

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Comment citer

Les chercheurs doivent citer cette ressource comme suit:

Westwood, K.J., Davidson, A.T. and Wright, S. (2015, updated 2017) Cape Darnley Early-Autumn Phytoplankton Bloom, March 2012

Droits

Les chercheurs doivent respecter la déclaration de droits suivante:

L’éditeur et détenteur des droits de cette ressource est Australian Antarctic Data Centre. Ce travail est sous licence Creative Commons Attribution (CC-BY) 4.0.

Enregistrement GBIF

Cette ressource a été enregistrée sur le portail GBIF, et possède lUUID GBIF suivante : c4a243a3-cc76-4e84-9f28-8a3c919bf0f4.  Australian Antarctic Data Centre publie cette ressource, et est enregistré dans le GBIF comme éditeur de données avec lapprobation du Atlas of Living Australia.

Mots-clé

Occurrence

Données externes

Les données de la ressource sont disponibles dans dautres formats

Point of truth metadata record https://data.aad.gov.au/metadata/records/Cape_Darnley_Bloom ASCII DIF 9.9

Contacts

KAREN WESTWOOD
  • Personne De Contact
  • INVESTIGATOR
  • Australian Antarctic Division 203 Channel Highway
7050 Kingston
Tasmania
AU
ANDREW DAVIDSON
  • Personne De Contact
  • INVESTIGATOR
  • Australian Antarctic Division 203 Channel Highway
7050 Kingston
Tasmania
AU
SIMON WRIGHT
  • Personne De Contact
  • INVESTIGATOR
  • Australian Antarctic Division 203 Channel Highway
7050 Kingston
Tasmania
AU
DAVE CONNELL
  • Fournisseur Des Métadonnées
  • DIF AUTHOR
  • Australian Antarctic Division 203 Channel Highway
7050 Kingston
Tasmania
AU
KAREN WESTWOOD
  • Personne De Contact
  • TECHNICAL CONTACT
  • Australian Antarctic Division 203 Channel Highway
7050 Kingston
Tasmania
AU
ANDREW DAVIDSON
  • Personne De Contact
  • TECHNICAL CONTACT
  • Australian Antarctic Division 203 Channel Highway
7050 Kingston
Tasmania
AU
SIMON WRIGHT
  • Personne De Contact
  • TECHNICAL CONTACT
  • Australian Antarctic Division 203 Channel Highway
7050 Kingston
Tasmania
AU
DATA OFFICER AADC
  • Distributeur
  • DATA CENTER CONTACT
Australian Antarctic Data Centre, Australia
  • Australian Antarctic Division 203 Channel Highway
7050 Kingston
Tasmania
AU

Couverture géographique

OCEAN > SOUTHERN OCEAN GEOGRAPHIC REGION > POLAR

Enveloppe géographique Sud Ouest [-67,135, 66], Nord Est [-66, 67,466]

Couverture taxonomique

Species of phytoplankton were identified using a Olympus IX71 and IX81 inverted microscopes

Kingdom Protozoa
Class Choanoflagellatea, Cryptophyceae, Oligotrichida
Family Bacillariaceae
Genus Chaetoceros, Fragilariopsis, Gyrodinium
Infragenericname Dinoflagelata

Couverture temporelle

Date de début / Date de fin 2012-03-04 / 2012-03-07

Citations bibliographiques

  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

Métadonnées additionnelles

Marine, harvested by OBIS

Identifiants alternatifs c4a243a3-cc76-4e84-9f28-8a3c919bf0f4
https://data.aad.gov.au/ipt/resource?r=capedarnely_bloom