Establishing a national end of life fishing/aquaculture gear recovery system for Australia

Project number: 2023-124
Project Status:
Current
Budget expenditure: $273,080.00
Principal Investigator: Anissa Lawrence
Organisation: TierraMar Ltd trading as Ocean Earth Foundation
Project start/end date: 29 Sep 2024 - 29 Jun 2026
Contact:
FRDC

Need

Building on the circularity discussions and work being undertaken by FRDC and the industry, this project seeks to undertake the legwork required to establish a nationwide on-demand End of life (EOL) fishing gear recovery system for Australia and pilot it in key locations. The materials that many nets and ropes are made of are highly valuable and recyclable and in fact in many other countries, is already being recycled or remanufactured. Until now, having a national system has been cost prohibitive due to the large distances and need for economies of scale and limited local buyer interest. As a part of the national targets set by the Australian Government relating to plastics use and recycling, commercial fishing and aquaculture sectors have been exploring how to move to a circular economy model and reduce plastic inputs through a variety of projects run by FRDC and others. However, with fishing gear the biggest plastic polymer input, and contamination challenges, there has yet to be a suitable system established.

This project seeks to enable the opportunities that addressing EOL gear provides in Australia to the commercial fishing and aquaculture sector through the establishment of an effective EOL fishing gear recovery system for the country to reduce the landfill costs to industry. It seeks to build on the learnings from previous projects as well as the ten years of experience of our partner Bureo has in in operating an EOL fishing gear recovery program. Bureo currently have an EOL gear recovery system active in 9 countries.

The key objectives are:
● By the end of 2026 there is an effective end-of-life fishing/aquaculture gear recovery system implemented across key fishing ports, and key aquaculture centres benefiting regional communities and fisheries conservation and assisting the Australian Government to address plastic recovery/recycling targets.
● By the end of 2024, the enabling environment for an effective and fit for purpose EOL fishing/aquaculture gear recovery system is in place within Australia, with commencement of recycling underway in key pilot locations.

Objectives

1. By March 2025 the feasibility of and logistical requirements are understood to establish a national end of life recovery system for commercial fishing and aquaculture gear in Australia and an enabling pathway for roll out created.
2. By the end of 2026 there is an effective end-of-life fishing/aquaculture gear recovery system for Australia implemented across at least 5 key fishing ports, with measurable benefits being delivered to regional communities, industry, conservation, while contributing towards the Australian Government’s recycling targets.

Prawn trawl sea-snake bycatch reduction device - Assessment, refinement, and extension

Project number: 2023-155
Project Status:
Current
Budget expenditure: $242,000.00
Principal Investigator: John Wakeford
Organisation: Sea Harvest Fishing Company Pty Ltd
Project start/end date: 31 May 2024 - 31 Oct 2025
Contact:
FRDC
SPECIES

Need

This project is needed to reduce the impact of prawn trawling on sea-snake populations both in Australia and overseas; the technology developed has been proven to reduce the landings of sea-snakes by 80%, however, it has not been properly assessed in terms of why it is so effective and whether sea-snakes escaping are healthy and likely to survive. This project attends to this need. The proposed project activity also includes a refinement phase whereby observations made during the Assessment sea-trials phase will be utilised to improve its performance prior to starting the Extension phase across several Australian prawn fisheries.

Successful reduction in sea-snake landings, as well as other small/moderate sized finfish bycatch, will help meet the sustainable fisheries priority.

Objectives

1. Comprehensively assess the bycatch reduction performance of the Sea-snake TED/BRD including coverage of when, where, and how sea-snake escape, and what other species are likely to benefit the most from its use.
2. Utilise both the existing Sea Harvest data (e.g., from 2023) and the assessment data from Objective 1 activity, to refine the Sea-snake TED/BRD, noting that these refinements may extend beyond improving exclusion rates and retention rates (prawn), to making the trawl gear fish better and ‘cleaner’.
3. Develop clear uptake guidelines to enable the Sea-snake TED/BRD to be successfully introduced into other prawn fisheries where variance in net design, TED/BRD design, and operations, may, if ignored, compromise its performance.

Related research

Adoption
Environment
Environment

Macquarie Harbour oxygenation trial

Project number: 2023-087
Project Status:
Current
Budget expenditure: $7,290,431.00
Principal Investigator: Jeff Ross
Organisation: University of Tasmania
Project start/end date: 20 Dec 2023 - 22 Nov 2025
Contact:
FRDC

Need

This project will address an urgent action identified under the updated Conservation Advice for the Maugean Skate to increase the levels of dissolved oxygen in Macquarie Harbour. Both modelling and empirical studies have demonstrated the role that salmonid aquaculture and river flows both play in influencing the dissolved oxygen status of the harbour (MHDOWG 2015; Ross & MacLeod 2017, Wild-Allen et al. 2020). A climate driven increase in bottom water temperatures of 1.5-2oC over the past 30 years in the harbour is also considered to have influenced the observed decline through decreased solubility and increased metabolic rates (Ross et al., 2021). The proposed project aims to help address this immediate priority to increase oxygen levels to support the conservation efforts for the skate and to offset the total oxygen drawdown of salmonid aquaculture in the harbour. The scientific evaluation program will assess the efficacy and environmental response to the oxygenation. This evaluation will be critical in assessing the feasibility and scalability of the system.

Objectives

1. Develop plume model and run scenarios to inform injection depth, flow volume, concentration, and distribution of injection points for oxygenation trials.
2. Measure oxygen load, retention and spatial extent of oxygen improvement.
3. Monitor and evaluate the ecosystem response.
4. Determine scalability based on objectives 1-4 using CSIRO’s Macquarie Harbour Model
5. Provide advice on progress to all key stakeholders and how it relates to conservation planning and action for the Maugean skate.