3 minute read
Introducing Heidi
by Tassal
“We lead the way globally for water quality monitoring."
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Heidi Hansen
Sustainability & Certification Manager
Q: How does Tassal lead the way in the industry globally for water quality monitoring?
A: The Aquaculture Stewardship Council (ASC) standards present a rigorous template for global best practiceand address the preservation of water resources and water quality. In order to maintain our ASC certification,we use sophisticated modelling and monitoring programs to understand changes in near field and far fieldwater quality as a result of our farming operations and invest heavily into research in this area.
What do we test the water for?
See page 18 for Broadscale Monitoring information and a map of testing sites.
One metre below the surface, we measure:
• Total Phosphorus (P)
• Total Nitrogen (N)
• Temperature
• Ammonium (NH4)
• Phosphate (PO4)
• Dissolved Oxygen (DO)
In the middle at five metres, we measure:
• Temperature
• Dissolved Oxygen (DO)
• Salinity
• Silicate (SiO4)
• Nitrate (NO3)
• Salinity
12 metre integrated algal sample
One metre above the sea floor
One metre above the bottom, we measure:
• Total Phosphorus (P) • Ammonium (NH4)
• Total Nitrogen (N) • Phosphate (PO4)
• Temperature
• Dissolved Oxygen (DO)
• Silicate (SiO4)
• Nitrate (NO3)
• Salinity
On the sea floor
On the sea floor, we measure:
• Infauna
• Redox
• Particle size
• Sulphides
• Total Organic Carbon (TOC)
What do we test the water for?
Phosphorus
Phosphate
Dissolved Oxygen
Nitrogen
Nitrate
Silicate
Ammonium
Temperature
Salinty
Have you seen Heidi’s ad yet?
Visit: www.tassalgroup.com.au /heidi/
What do we test the sea floor for?
Infauna
Sulphides
Redox
Organic Carbon
About Heidi
Q: Did our Tasmanian salmon industry really pioneer the high standards for water monitoring in Tasmania?
A: Through the Tasmanian Salmonid Growers Association (TSGA), Tassal participates in a Broadscale Environmental Monitoring Program
Q: Did Tassal really pioneer the high standards for water (BEMP) across multiple locations in monitoring in Tasmania? south-east Tasmania.
A: The monitoring program has a water quality component (surface and bottom water) and a sediment component (sediment biology and chemistry). Sampling is conducted by Aquenal (Environmental Consultants) every two weeks in summer and monthly over winter.
More recently, Tassal has implemented real time sensors at various growing regions across the state, which measures key water quality parameters such as dissolved oxygen levels and temperature.
About Heidi
Heidi studied Environmental Science in New South Wales before relocating to Tasmania in 2009 for family reasons.
She has been with Tassal for over eight years.
Heidi has played a pivotal role in our partnership with WWF-Australia, as well as achieving Best Aquaculture Practices (BAP) and Aquaculture Stewardship Council (ASC) certification for Tassal’s operations.
Not only does Heidi support maintainence of our compliance with certification standards, but she also coordinates the production of our annual Sustainability Report, ranking Tassal #2 globally for transparent reporting by seafoodintel.com in 2017.
About Ollie
Ollie is a grand old gentleman.
At 11 years old he is very happy to cruise along enjoying the beach.
Heidi rescued Ollie when he was just a year old and they have been best mates ever since!
About Lucy
Lucy is the latest edition to Heidi’s family. At just eight months old she is full of excitement!Lucy thought hanging out at the beach helping Heidi tell you her story was the best day ever!
