3 results

The methodical introduction of high strength netting to the prawn trawling industry in Queensland

Project number: 2008-206
Project Status:
Completed
Budget expenditure: $106,900.00
Principal Investigator: David J. Sterling
Organisation: DJ Sterling Trawl Gear Services
Project start/end date: 19 Jun 2008 - 29 Aug 2009
Contact:
FRDC

Need

The Australian Fishing Industry requires assistance in becoming a more efficient user of energy. Fishing with trawl gear expends more fuel per kg of fish landed compared to passive methods such as longlining and trap fishing. In all cases however, rising fuel prices impinge on the profitability of the operations, and ultimately put their viability in jeopardy; this has reach a critical situation for many trawl operators in Australia.
This project to implement high strength netting and demonstrate the positive outcomes for the prawn trawling industry has the intention of reducing the fuel used by fishing enterprises and shifting the industry towards a more economically viable and environmentally sustainable position.
Specifically, research is required to document and define the difficulties/problems associated with using high strength netting in prawn trawling applications and develop solutions for its successful implementation; followed by quantification of the nett benefit achieved.
This contributes to the R&D plans and strategies of all advisory bodies to the FRDC, since they contain high priority goals to achieve FRDC’s planned outcome for Industry Development, that: "The commercial sector of the Australian fishing industry is profitable, internationally competitive and socially resilient".

Objectives

1. For commercial netting of 50mm nominal mesh size, measure and compare the dimensional, mechanical and hydrodynamic characteristics of 1.65mm twisted PE (24 ply), 1.0mm twisted Spectra and 1.1mm braided Dynema.
2. Compare the engineering and catching performance of three dual-rig prawn trawling systems
each configured to be compatible (“optimal”) respectively to the three netting types under investigation.

Final report

ISBN: 0 9578341 5 2
Author: David Sterling

Fishing energy efficiency review for the FRDC

Project number: 2005-239
Project Status:
Completed
Budget expenditure: $26,610.00
Principal Investigator: David J. Sterling
Organisation: DJ Sterling Trawl Gear Services
Project start/end date: 5 Nov 2005 - 10 Jan 2007
Contact:
FRDC

Need

Most Australian commercial fishers are faced with a very challenging period ahead. With the prospect of further price rises in petroleum-based fuel, combined with a domestic oil deficit predicted to emerge past 2015, and a global need to reduce greenhouse gas emissions, the Australian fishing industry is seeking ways to improve the energy efficiency of its operations and to find viable alternative energy sources.

Whilst the development and trial of alternative energy technologies is well advanced in the road transport sector, the maritime sector has received less attention, particularly in Australia.

There is a need to bring together alternative energy providers, fishing vessel and gear designers, fishing operators, industry representatives, researchers and funding providers to discuss the potential for alternative energy technologies and energy-efficient design for commercial fishing operations in Australia. Following this it is highly desirable to scope methods of reducing energy usage through, for example, improved gear efficiencies and vessel design including propulsion systems, and to develop an R&D agenda for advancing alternative energy use and energy efficiency in Australia’s fishing fleet.

A beneficial spin-off of the work would be to develop a guide that can inform the industry on existing and new developments in this area, and where the greatest potential for fuel efficiencies lies.

Objectives

1. Examine the degree to which rising fuel costs have impacted on different fisheries
2. Examine new and existing technologies developed both within and outside of Australia in the field of increased fishing efficiency through reduced energy usage and innovation
3. Examine opportunities for applying innovative solutions and developments which are most likely to produce the best return for the Australian fishing industry
4. Develop a publication that scopes potential innovations, whether they be existing or have the potential for development, that reduce energy usage
5. Provide advice on potential R&D that could assist industry in reducing energy usage.
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