Blog icon

Voyage Number


Voyage Dates

15 Mar, 2017 to 05 Mar, 2017

Voyage Location

Hobart to Hobart

Chief Scientist

Prof Tom Trull


Antarctic Climate and Ecosystem CRC

Voyage summary

Research voyage to the Southern Ocean, southwest of Tasmania, to support maintenance of Southern Ocean Time Series (SOTS) automated moorings which collect data for long-term monitoring of the Southern Ocean.

The primary objective of the voyage is to deploy a new set of SOTS moorings (SAZ-19 and SOFS-6) and then recover the existing SOTS moorings (FluxPulse-1 and SAZ-18).

Two supplementary projects will be undertaken on the voyage:

  • International Nutrient Intercalibration Exercise (Mark Rayner, CSIRO): Project to measure profiles of trace elements dissolved and particulate concentrations, and examine the processes that produce and recycle them.
  • Spatial and Temporal Variability in the Distribution and Abundance of Seabirds (Dr Eric Woehler, BirdLife Australia): Ongoing project to quantify the distribution and abundance of seabirds around Australia.

Two piggyback projects will be undertaken on the voyage:

  • Acoustic estimates of zooplankton and fish (Rudy Kloser, CSIRO): Project to map the top 1000 m of the water column for micronekton at the SOTS site using a profiling lagrangian acoustic and optical probe acoustic optical system (PLAOS).
  • Trace element cycling (Philip Boyd, UTAS): Project to measure profiles of trace element dissolved and particulate concentrations, their stable isotopes and to examine the processes that produce and recycle them.

Voyage impact

As a result of this voyage, researchers have deployed moored platforms that assemble an integrated view of the seasonality of the processes that control the productivity of the sub-Antarctic microbial foodweb. This analysis extends from the physics of ocean mixing and insolation, to the chemistry of ocean nutrients and the biological responses of phytoplankton and zooplankton.

This research will contribute to global datasets and increase understanding of Southern Ocean characteristics, variability and processes. This information is vital for informing ocean and climate modelling.

As a result of the nutrients supplementary project, there is improved knowledge of nutrient analysis techniques, meaning future data will be potentially of higher accuracy and precision, lowering the uncertainty associated with analysis of samples.

Data collected from the seabirds project will complement existing data from the survey area collected between 1980 and 2005. These data were collected from Australian Antarctic Division research and resupply voyages.

The scientific highlight of the seabirds project was the observation of a Gibson’s Albatross (a subspecies of the Wandering Albatross) originally banded in 1991 as a breeding adult. The bird, likely close to 50 years old, was observed sitting on the surface close to the vessel on several occasions and was photographed when it was observed to be banded. The colour band allowed the bird to be uniquely identified.

Voyage media

Contact us

Find out how we can help you and your business. Get in touch using the form below and our experts will get in contact soon!

CSIRO will handle your personal information in accordance with the Privacy Act 1988 (Cth) and our Privacy Policy.

First name must be filled in

Surname must be filled in

I am representing *

Please choose an option

Please provide a subject for the enquriy

0 / 100

We'll need to know what you want to contact us about so we can give you an answer

0 / 1900

You shouldn't be able to see this field. Please try again and leave the field blank.