Integrated Publishing Toolkit(IPT)

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IMOS National Reference Station (NRS) - Zooplankton Abundance

Latest version published by CSIRO Oceans and Atmosphere on Jul 19, 2019 CSIRO Oceans and Atmosphere

This dataset comprises the zooplankton abundance estimates of a broader sampling program carried out by the Plankton National Reference Station within the Integrated Marine Observing system. Regular monthly zooplankton samples are undertaken at the stations as part of a larger water sampling program by the Australian National Reference Stations. In total nine stations are sampled regularly around the Australian coastline. Sampling is conducted monthly (Esperance and Ningaloo 3 monthly) off small vessels at each of the nine reference stations. The sampling is conducted using a drop net (as per the design of Heron) which has a 60 cm diameter, 100 micron mesh and is weighted to fall at 1 m/s. The net is designed to pull closed at the end of its fall so that it samples on the way down and does not sample on the way up. The depth of the sample varies at each station. 3 zooplankton samples are taken each month. 2 are fixed in formalin and will be analysed as described below. The unfixed sample is concentrated and frozen (-80oC)and will be used for molecular analysis in the future. The Port Hacking 4 (PH4) samples (2002 - Jan 2009) were sampled using a smaller net, 20 cm diameter, which sampled on the way up and down. The PH4 site is very close to the Port Hacking national reference station (PHB) where samples are now taken to build up and enhance the time series. The plankton ecology lab (based in Queensland) will analyse the samples collected for: 1. Community composition (Taxon/m3) 2. Biomass (dry weight in mg/m3) 3. Size spectrum analysis using zooscan (in progress) Data storage and access is planned to be interoperable with other national and international programs through the IMOS Infrastructure. Station metadata can be found through this resource. Data is available freely via the AODN portal: As the taxonomic resolution of the data has changed over time, due to continual training, it is important that users refer to the change log tables included in your data download. These will provide information on the validity of the taxa, from what date we have been identifying certain taxa etc. Classification fields may be blank depending on the level to which that taxa has been identified, i.e. if only identified to family, genus and species will be blank.

Data downloaded from IMOS 14-March-2017 from and taxonomy matched to WoRMS.

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 41,525 records.

This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.


Download the latest version of this resource data as a Darwin Core Archive (DwC-A) or the resource metadata as EML or RTF:

Data as a DwC-A file download 41,525 records in English (1 MB) - Update frequency: as needed
Metadata as an EML file download in English (8 KB)
Metadata as an RTF file download in English (8 KB)


The table below shows only published versions of the resource that are publicly accessible.

How to cite

Researchers should cite this work as follows:

This material is released under the Creative Commons Attribution 4.0 International licence. The citation in a list of references is: "IMOS [year-of-data-download], [Title], [data-access-URL], accessed [date-of-access]." Any users of IMOS data are required to clearly acknowledge the source of the material in the format described in the acknowledgments section.


Researchers should respect the following rights statement:

The publisher and rights holder of this work is CSIRO Oceans and Atmosphere. This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License.

GBIF Registration

This resource has been registered with GBIF, and assigned the following GBIF UUID: 2e844554-d9bf-4540-8c6d-2999ad5ced21.  CSIRO Oceans and Atmosphere publishes this resource, and is itself registered in GBIF as a data publisher endorsed by Atlas of Living Australia.


Occurrence; Observation


Who created the resource:

Claire Davies
Research Projects Officer CMAR
CSIRO GPO Box 1538 7000 Hobart Tasmania AU +61 7 3833 5921

Who can answer questions about the resource:

Claire Davies
Research Projects Officer CMAR
CSIRO GPO Box 1538 7000 Hobart Tasmania AU +61 7 3833 5921

Who filled in the metadata:

Dave Watts
OBISAU Node Manager
CSIRO GPO Box 1538 7000 Hobart Tasmania AU +61 3 6232 5062

Who else was associated with the resource:

Dave Watts

Geographic Coverage

There are ten Coastal sites near major cities

Bounding Coordinates South West [-47, 110], North East [-12, 160]

Project Data

These data are from the National Mooring Network, part of the Integrated Marine Observing System (IMOS) - IMOS is a national collaborative research infrastructure, supported by the Australian Government. Each NRS collects its own zooplankton samples and sends them to the Queensland CMAR laboratories for analysis.

Title National Mooring Network

The personnel involved in the project:

Content Provider
Roger Proctor

Additional Metadata

marine, harvested by iOBIS

Alternative Identifiers 2e844554-d9bf-4540-8c6d-2999ad5ced21