8 results
Industry
Industry
PROJECT NUMBER • 2016-208
PROJECT STATUS:
COMPLETED

Waste to profit in urchin fisheries: developing business opportunities to ensure fishery sustainability and safeguard reef dependent fisheries from destructive urchin grazing

This report examines two potential applications of Longspined Sea Urchin (Centrostephanus rodgersii) via pitot scale trials; processing waste as an agricultural fertiliser and use as Southern Rock Lobster bait. The biochemical composition of Longspined Sea Urchin waste products was analysed, and the...
ORGANISATION:
University of Tasmania (UTAS)
Industry
Environment
PROJECT NUMBER • 2014-241
PROJECT STATUS:
COMPLETED

Reassessment of intertidal macroalgal communities near to and distant from salmon farms and an evaluation of using drones to survey macroalgal distribution

The salmon farming industry has significantly expanded in South-eastern Tasmanian both in production and in number and location of farms. Along with this expansion has been an increasing concern from the general community about the effects of salmon farms on the environment. This includes a reported...
ORGANISATION:
University of Tasmania (UTAS)

Atlantic Salmon Aquaculture Subprogram: macroalgal monitoring in Macquarie Harbour, Tasmania

Project number: 2011-086
Project Status:
Completed
Budget expenditure: $26,920.24
Principal Investigator: Christine D. Crawford
Organisation: University of Tasmania (UTAS)
Project start/end date: 7 May 2012 - 30 Dec 2012
Contact:
FRDC

Need

The Tasmanian salmonid industry is planning for a significant expansion of salmon aquaculture in Macquarie Harbour. This will result in an increase in nutrients – nitrogen and phosphorous – from salmon farming waste products into the environment. These nutrients may result in increased primary production – of micro and macro-algae, although the extent of increased production and the potential for eutrophication of the system is not fully understood The issue of macroalgal growth has been raised by community stakeholders and in light of recent comments the Tasmanian salmonid industry wishes to support baseline research investigations and monitoring. These macroalgae are largely intertidal and therefore obvious to the community, which provides an opportunity to involve community members in the macroalgal assessments.
There is a pressing need to commence baseline monitoring of macroalgal distribution and abundance in Macquarie Harbour before additional salmon farming commences. As different species of macroalgae occur at different times of the year, autumn and spring monitoring will be necessary.

Objectives

1. To conduct preliminary baseline monitoring for macroalgae in Macquarie Harbour in autumn
2. Develop a macroalgal monitoring program for Macquarie Harbour
3. Test monitoring program and conduct seasonal (spring) baseline monitoring
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