More Information

Click on the map icons below to view individual lease information, or view map data as a list.

  • Marine Farm Lease
  • Water monitoring station
  • Environment

    ​Total Permissible Dissolved Nitrogen Output (TPDNO)

    Aquaculture, like most farming practices, may impact the environment through the introduction of nutrients into the environment. Nitrogen can have a big impact on coastal marine systems. Excess nitrogen enters the environment from excess fish feed, fish faeces and urine.

    One way to regulate the nitrogen from salmon farming is for the EPA to allocate a Total Permissible Dissolved Nitrogen Output (TPDNO) limit. This says how much dissolved nitrogen companies are allowed to input into the environment in a twelve month period. Companies must not exceed this limit.

    Each salmon company in the D’Entrecasteaux Channel and Huon River MFDP area has been allocated an annual TPDNO limit (tonnes of nitrogen).

    Date of DeterminationTassalHuon
    28 October 20191361.5979.02
    1 May 20181361.5979.02
    1 April 20181361.5979.02
    1 March 20181361.5979.02
    28 July 20171361.5​979.02
    10 May 20171296.03​979.02

    Benthic Monitoring

    Environmental licences require companies to undertake regular visual monitoring of the seabed to detect environmental changes associated with farming salmon. This occurs at all salmon farming sites across Tasmania.

    One requirement is that there must be no significant visual impacts at, or past, 35 metres from the lease area. Visual impacts are monitored by remotely operated vehicles fitted with high definition cameras. Visual monitoring occurs at compliance points located around the lease area. Where significant impacts are detected, additional monitoring surveys are conducted at points further away to assess impact.

    If a significant impact is detected within or outside the lease areas, the EPA may require management responses as well as further investigation.

    Data is required to be collected annually, however the timing of environmental surveys is lease dependant and can take place within any month throughout the year.​

    Data from the current monitoring period

    Quarter 4, 2019

    CompanyLease numberNumber of 35m compliance points surveyedNumber of compliant 35m compliance points surveyed
    Huon8787
    Huon9388
    Tassal14299
    Huon16765
    Huon22177


  • Fish Health

    ​Significant mortality event reported

    A company has to immediately notify the Government of any significant illness, mortality or disease in their fish.

    ​Companies that are listed on the Australian Stock Exchange are required to report this information to their shareholders at set dates each year*. This information will be reported on this site in the quarter after it has been reported to market in the case of publically listed companies. This is necessary to avoid breaching the rules for companies that are set by the Australian Securities and Investments Commission.

    Data from the current monitoring period

    Quarter 4, 2019

    HuonN
    TassalN

    ​Mortality within a cage >0.25% for three consecutive days

    A company must report as soon as possible any suspected or known incidents of disease or mortality affecting greater than 0.25 per cent of fish per day for three consecutive days in any individual cage.

    Where fish mortalities are not collected daily then the morts need to be averaged over the number of days between collection. For example if there are 1.2% morts collected today but it has been 4 days since the morts were collected then it has been 0.3%/day for 4 days (which is reportable) not one day at 1% (which is not reportable).

    Companies that are listed on the Australian Stock Exchange are required to report this information to their shareholders at set dates each year*. This information will be reported on this site in the quarter after it has been reported to market in the case of publically listed companies. This is necessary to avoid breaching the rules for companies that are set by the Australian Securities and Investments Commission.​

    Data from the current monitoring period

    Quarter 4, 2019

    HuonN
    TassalY

    Seal mortalities

    ​A seal death that is attributable to salmon farming is defined as:
    "A mortality caused by an interaction with marine farming activities, operations and infrastructure including but not limited to: entanglement, vessel strike, other infrastructure interaction, deterrent use, sedation, and humane destruction."

    Whether or not a seal death was caused by salmon farming activities is determined on a case by case basis after assessing all of the facts.

    Data from the current monitoring period

    Quarter 4, 2019

    HuonN
    TassalY


  • Operational Compliance

    Marine Farm Inspections

    There are a range of requirements that licence and lease holders must comply with. These are created by instruments such as legislation, licences, leases and Marine Farming Development Plans. The Government has an inspection program where authorised officers from Government or Marine and Safety Tasmania visit and inspect marine farms for compliance.

    Data from the current monitoring period

    Quarter 4, 2019

    HuonY
    TassalY

    Infringements

    When an infringement is detected, authorised officers from Government or Marine and Safety Tasmania may issue an infringement notice.

    Data from the current monitoring period

    Quarter 4, 2019

    Huon0
    Tassal1

    Marine Debris clean ups

    As the population and industries expand, marine debris is a growing environmental and navigational issue for the waterway. Debris may come from lots of sources including:

    • pleasure craft
    • commercial vessels
    • fish farming activities

    Debris may also end up in the ocean from land, for example litter, and runoff from stormwater drains. Finfish and shellfish farmers monitor and remove marine debris from nominated shorelines through an ‘Adopt a Shoreline’ initiative. The Government also participates in shoreline clean up activities. This helps to ensure that any debris, whether marine farming related or not, is collected and Tasmania’s coastline is protected.

    Data from the current monitoring period

    Quarter 4, 2019

    Length of coastline surveyed (km)​Time spent surveying (hrs)Volume collected (m3)% attributable to fish farming
    152.30530.5027.4018.92

    Marine Farming Equipment Register

    The Government has developed an equipment identification register with the three salmon companies to enable ownership of debris to be established. Companies have assisted in this regard with gear marking and colour coding of equipment for identification purposes. The register is a statewide register of equipment.

    ​Company​Marine farming equipment register provided?
    ​Tassal​Y
    ​Huon​Y
    ​Petuna​Y

    ​Fish escapes notified to DPIPWE

    Salmon farmers must not release into Tasmania’s waters any fish unless authorised to do so. If fish are released this is a breach of their licence and operators must notify Government.

    The table below shows which companies have reported fish escapes to Government. Sometimes companies fail to report fish escapes, and this is a breach of their licence and they may be penalised.

    Companies that are listed on the Australian Stock Exchange are required to report this information to their shareholders at set dates each year*. This information will be reported on this site in the quarter after it has been reported to market in the case of publically listed companies. This is necessary to avoid breaching the rules for companies that are set by the Australian Securities and Investments Commission.​

    Data from the current monitoring period

    Quarter 4, 2019

    HuonN
    TassalN


  • Production

    ​​HOG Weight

    HOG Weight refers to the weight of a fish “Head On Gutted” and is how companies and the market refer to the weight of fish in a commercial setting.

    Companies that are listed on the Australian Stock Exchange are required to report this information to their shareholders.  HOG data will be reported on this site after it has been reported to market in the case of publically listed companies. This is necessary to avoid breaching the rules for companies that are set by the Australian Securities and Investments Commission.​​


    Number of tonnes produced state-wide

    Company ​2017/18 FY 2018/19 FY 2019/20 FY (YTD)
    Tassal​29,306.24​32,157.74​17,628.80
    Huon Aquaculture​23,681.88​18,818.53​13,677.02
    Petuna​7,058.54​6,013.07​3,738.48

    ​​​​​Employment Data

    ​Each company employs staff across Tasmania on both a permanent and casual basis.  

    Number of full time equivalent staff state-wide

    ​Company
    ​​Current reporting period (Quarter 4, 2019)
    ​2018 (average)
    ​2017 (average)
    ​Tassal
    ​805
    ​845
    ​801
    ​Huon Aquaculture
    ​672
    ​515
    ​431
    ​Petuna
    ​201
    ​203
    ​242


     

    Number of casual staff state-wide

    ​Company
    ​​Current reporting period
    (Quarter 4, 2019)
    ​2018 (average)
    ​2017 (average)
    ​Tassal
    ​120
    ​110
    ​131
    ​Huon Aquaculture
    ​26
    ​38
    ​27
    ​Petuna
    ​19
    ​17
    ​22