76 results
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)
Blank
PROJECT NUMBER • 2010-761
PROJECT STATUS:
COMPLETED

SCRC: SCRC RTG: Laboratory Training, USA (Judith Fernandez-Piquer)

This project was a CRC travel grant and involved a series of training activities for improved knowledge of the Vibrio monitoring and risk management in oysters which were conducted in Ocean Springs-Biloxi, Mississippi and Dauphin Island, Alabama, USA in November 2010. The outcomes of this trip were...
ORGANISATION:
University of Tasmania (UTAS)
Environment
PROJECT NUMBER • 2013-026
PROJECT STATUS:
COMPLETED

Can commercial harvest of long-spined sea urchins reduce the impact of urchin grazing on abalone and lobster fisheries?

At low-levels of exploitation, commercial harvesting of long-spined sea urchins was found to prevent increase in urchin density. Adjacent unfished locations experienced an increase in both urchin density and grazed area over the 2014 – 2016 study period. Research sampling of populations...
ORGANISATION:
University of Tasmania (UTAS)
Adoption
PROJECT NUMBER • 1998-343
PROJECT STATUS:
COMPLETED

9th International Conference on Harmful Algal Blooms, 7-11 February 2000, Hobart

The FRDC sponsored 9th International Conference on Harmful Algal Blooms held in Hobart, Tasmania, from 7-11 February 2000, was a resounding success. It was the largest conference on this topic (526 participants from 47 countries) ever held anywhere in the world. A total of 130 talks and 308 poster...
ORGANISATION:
University of Tasmania (UTAS)
Industry
PROJECT NUMBER • 1996-352
PROJECT STATUS:
COMPLETED

Aspects of feeding, maturation and osmoregulation in cultured juvenile greenback flounder

Skeletal deformities have been observed in cultured flounder in recent years. At times, high percentages of fish are affected, potentially influencing growth and marketability, and affecting the reliability of the experimental data collected. Many growers taking fish for pilot scale grow-out trials...
ORGANISATION:
University of Tasmania (UTAS)
Industry
PROJECT NUMBER • 2011-735
PROJECT STATUS:
COMPLETED

Seafood CRC: an evaluation of the options for expansion of salmonid aquaculture in Tasmanian waters

The Tasmanian Salmonid Growers Association (TSGA) strategic plan to 2030 targets a 100% expansion to a $1 billion industry over the next 20 years. The challenge for the Tasmanian Atlantic salmon industry is for sustainable strategic growth. The strategic plan recognises that to achieve this industry...
ORGANISATION:
University of Tasmania (UTAS)

Tactical Research Fund - Empowering Industry: energy audit of prawn trawler with auxiliary sail power

Project number: 2011-229
Project Status:
Completed
Budget expenditure: $14,680.00
Principal Investigator: Giles A. Thomas
Organisation: University of Tasmania (UTAS)
Project start/end date: 2 Oct 2011 - 10 Jun 2012
Contact:
FRDC

Need

Commercial fishing is one of the most energy intensive food production methods today and the Australian industry consumes approximately 205 million litres of diesel fuel per annum. The fishing industry needs to radically improve the energy efficiency of its operations primarily due to the rising cost of fuel and its effect on operating margins. The recent rapid increase in cost of diesel has reduced margins to such a low level that it is rapidly becoming uneconomical for operators to continue to trade. This has significant flow-on effects down the whole production-processing-retail chain.

In addition there is a global need to reduce the emissions of oxides of nitrogen (NOx) and carbon dioxide (CO2) from fossil fuel combustion. The global fisheries industries emit annually more than 130 million tonnes of CO2 into the atmosphere.

Trawling is a very energy intensive fishing method, for example Australian prawn trawlers incur fuel costs of approximately 35% of total production costs. The use of alternative auxiliary powering systems, such as sails, has the potential to radically reduce fuel consumption by a combination of providing supplementary propulsive thrust and reducing vessel motions and consequent drag.

Several fishers in Australia have installed sails onto their vessels with the aim of reducing fuel consumption, but no investigations have been conducted to ascertain the effect the auxiliary systems actually have on fuel consumption, performance and costs. The results from an energy audit on such a vessel would provide valuable information to other fishers on the benefits, or otherwise, of fitting such a system to their vessel.

The need for this work was highlighted by the results from recent FRDC sponsored energy audits of fishing vessels. The 1st International Symposium on Energy Efficiency in Fishing was held in May 2010 and clearly emphasised the need for continuing RD&E in this area.

Objectives

1. Energy audit (level 2) on prawn trawler fitted with auxiliary sail system.
2. Collect data on effect of use of sail system on fuel consumption in varying environmental conditions.
3. Analyse energy audit data to determine effect of sail system on fuel consumption.
4. Disseminate information on effect of sail auxiliary power system to owners and operators of fishing vessels.

Final report

ISBN: 978-1-86295-676-6
Author: Giles Thomas
Environment
PROJECT NUMBER • 2003-051
PROJECT STATUS:
COMPLETED

Developing tagging models and validating assumptions for estimating key fishery assessment parameters in rock lobster fisheries

Tagging is an important tool for estimating key fisheries parameters such as fishing mortality, natural mortality and growth. This project identified the need for future tagging projects to undertake preliminary studies to determine the impact of tagging on both growth and survival, and we developed...
ORGANISATION:
University of Tasmania (UTAS)
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