11 results
Environment
PROJECT NUMBER • 2004-214
PROJECT STATUS:
COMPLETED

Aquafin CRC - Atlantic Salmon Aquaculture Subprogram: effects of husbandry on AGD

Before this project our knowledge of the effects of husbandry on Amoebic Gill Disease (AGD) was limited. This project allowed on-farm assessment of effects of husbandry procedures and stock characteristics on AGD severity. Furthermore, we investigated the potential to re-use fresh water for...
ORGANISATION:
University of Tasmania (UTAS)
Industry
PROJECT NUMBER • 2010-753
PROJECT STATUS:
COMPLETED

Seafood CRC: improving hatchery production of Yellowtail Kingfish larvae and fingerlings

Clean Seas Tuna is the largest commercial hatchery producer of Yellowtail Kingfish fingerlings in Australia. Following three years of research (2007-2010) into larval rearing issues, the company still experienced variability in results between the two hatcheries, Port Augusta and Arno Bay, between...
ORGANISATION:
University of Tasmania (UTAS)

ASBTIA: Investigation of causes of mortalities in farmed SBT – variation to project 2008/228

Project number: 2008-234
Project Status:
Completed
Budget expenditure: $71,278.00
Principal Investigator: Barbara Nowak
Organisation: University of Tasmania (UTAS)
Project start/end date: 14 Feb 2009 - 14 Dec 2009
Contact:
FRDC

Need

The SBT industry in Australia is limited by catch quota. Increased competitiveness and product quality through production efficiency are the main ways to improve the value of the industry. Improved performance can be achieved through reduction of mortalities and optimising production. These issues will also be crucial for longer term holding, when the initial size of tuna will be smaller and the fish will be farmed for a longer time, increasing health risks to the tuna.
Since 2002 there has been a significant fall in revenue (prices down over 50% and strengthening of the Australian dollar). The worsening financial parameters, combined with the intrinsic high ‘value’ of each fish, have placed a greater focus on all aspects of the industry and particularly stress impacts limiting production. Mortality is an obvious area and the current, increased level is not acceptable.
While FRDC project 2008/228 will investigate SBT parasites and their impact on farmed SBT, it will not include a broad approach to investigation of causes of SBT mortalities. There is an urgent need for the identification of the causes of SBT mortalities.

Objectives

1. 1. To investigate causes of mortalities of farmed SBT in 2009, in particular 6-12 weeks mortalities
2. 2. To suggest preventative measures and/or further research to reduce mortalities in the future
Environment
PROJECT NUMBER • 2004-213
PROJECT STATUS:
COMPLETED

Aquafin CRC - Atlantic Salmon Aquaculture Subprogram: commercial AGD and salmon health project

Prior to this project there had been investigations into some potential candidate amoebicides, with little success except for the possibility of oxidative disinfectants such as chloramine-T. This project has since tested a number of amoebicides using a progressive approach of in vitro...
ORGANISATION:
University of Tasmania (UTAS)
Blank
PROJECT NUMBER • 2010-724
PROJECT STATUS:
COMPLETED

SCRC: PhD 6.06 Development of tools for the sustainable management of genetics in polyploid Pacific Oysters (Crassostrea gigas) (Assoc Prof Anthony Koutoulis; Student Penny Miller)

The commercial production of triploid Pacific Oysters (Crassostrea gigas) has grown rapidly in recent years. There is now a push to move away from commonly used mass spawning techniques towards single pair cross selective breeding programs in an effort to improve growth and disease resistance within...
ORGANISATION:
University of Tasmania (UTAS)
Blank

SCRC: PhD 5.08 Development of vision and first feeding behaviour of Southern Bluefin Tuna and Yellowtail Kingfish larvae (Dr Jenny Cobcroft: Student Polyanna Hilder)

Project number: 2009-760
Project Status:
Completed
Budget expenditure: $0.00
Principal Investigator: Jennifer Blair
Organisation: University of Tasmania (UTAS)
Project start/end date: 19 Oct 2009 - 20 Jan 2013
Contact:
FRDC

Need

Australian marine finfish farming has a target to increase production to 100,000 t by 2015 (Hone, 2008). In order to achieve this ambitious target considerable growth in the quantity and quality of hatchery produced fry is vital. This project adds critical mass to the highly skilled and specialised area of larval rearing research which will under pin industry growth.

Relevance to industry priorities and Seafood CRC milestones

Developing a sustainable, aquaculture-based supply of SBT juveniles is critical for the growth of the SBT industry in Australia. By increasing our knowledge of SBT and YTK biology, informed modifications to production systems will increase larval survival, addressing four specific outputs of the Finfish - Aquaculture Production Innovation theme including; Strategy 2: 1)Reliable production of SBT juveniles, and 2) Reliable, cost-effective production of high quality juveniles of YTK & other key species, and Strategy 3: 1) Established production techniques for propagated SBT, and 2) Improved feeds and feed management for marine fish during hatchery, nursery and grow-out stages (including during sub-optimal temperatures conditions). The CRC Milestones contributed to are 1.1.2 and 1.1.3 Key researchable constraints (in SBT and YTK larval culture) identified, characterised and successfully addressed.

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