15 results
Industry

Development of resources and equipment to enable best practice in the humane dispatch of sharks caught by commercial fishers in the NT

Project number: 2022-028
Project Status:
Current
Budget expenditure: $148,400.00
Principal Investigator: Ben Diggles
Organisation: DigsFish Services Pty Ltd
Project start/end date: 31 Dec 2022 - 29 Dec 2023
Contact:
FRDC

Need

The so called pragmatic approach to the welfare of aquatic animals (Arlinghaus et al. 2007) measures welfare status using a variety of well-established, un-controversial physiological and functional parameters (Rose et al. 2014, Browman et al. 2019). For example, all finfish, crustaceans and cephalopods can experience stress, which can lead to poor welfare outcomes (Rose et al. 2014). From an animal welfare perspective, the overall aim to maximise fish welfare during capture is to minimise stress within the constraint of practices inherent to the relevant fishing sector (Mazur and Bodsworth 2022).
Using this pragmatic approach, the Aquatic Animal Welfare Working Group (AAWWG) which was formed under the Australian Animal Welfare Strategy (AAWS, 2005-2014), developed a range of Overarching Welfare Principles which related to finfish harvested from the wild in commercial fishing industries.
Out of the eight Overarching Principles developed by the AAWWG, as pointed out by Mazur and Bodsworth (2022) the three that are most relevant to the commercial wild harvest industry are:
1. Timely handling from capture to death is essential to minimise stress;
2. Capture methods should be designed to minimise the capture of unwanted species
3. Any fish selected for harvest should be killed as rapidly as possible, by humane means suitable for the species.
To address the legislative issues under the new Act, meet current and future fish welfare challenges, and maintain their social license to fish, commercial fishers targeting sharks in the NT need to develop workable and effective standards for handling and dispatching sharks which can be recognised and prescribed under the new Regulations.
Since shark fisheries are specialist fisheries which were not covered by the AAWWG during the AAWS, there is a need to develop specific resources to assist the industry with humane dispatch of sharks.
Science shows that brain destruction by pithing or “iki-jime” is the fastest way to dispatch finfish, resulting in the lowest levels of stress and maximising the quality and shelf life of the resulting fish product (Poli et al. 2005, Diggles 2015). However, the brains of sharks are small and vary in location between species, which is why this project is being proposed and is necessary to determine the brain location of the sharks most commonly captured in the NT shark fishery, and then examine various methods of rapidly destroying the brain, in order to develop guidelines and best practice protocols for their humane dispatch. Importantly, it should be noted that this is an industry driven project.

References

Arlinghaus R, Cooke SJ, Schwab A, Cowx IG (2007). Fish welfare: A challenge to the feelings based approach, with implications for recreational fishing. Fish and Fisheries 8: 57-71.

Browman HI, Cooke SJ, Cowx IG, Derbyshire SWG, Kasumyan A, Key B, Rose JD, Schwab A, Skiftesvik AB, Stevens ED, Watson CA, Arlinghaus R (2019). Welfare of aquatic animals: where things are, where they are going, and what it means for research, aquaculture, recreational angling, and commercial fishing. ICES Journal of Marine Science 76: 82–92. doi:10.1093/icesjms/fsy067

Diggles BK (2015). Development of resources to promote best practice in the humane dispatch of finfish caught by recreational fishers. Fisheries Management and Ecology DOI: 10.1111/fme.12127

Mazur N, Bodsworth A (2022). Practicing aquatic animal welfare: Identifying and mitigating obstacles to uptake and adoption by the Australian Seafood Industry. Final Report for FRDC Project No 2019-023, March 2022. 60 pgs.

Poli BM, Parisi G, Scappini F, Zampacavallo G (2005). Fish welfare and quality as affected by presaughter and slaughter management. Aquaculture International 13: 29-49.

Rose JD, Arlinghaus R, Cooke SJ, Diggles BK, Sawynok W, Stevens ED, Wynne CD (2014). Can fish really feel pain? Fish and Fisheries 15: 97–133.

Objectives

1. Obtain all relevant permits. Review of literature (primary and grey) and current NT industry practice to inform Objective 2.
2. Collect at least 3 representative specimens (small, medium large) of each of the main shark species (up to 12) encountered by the commercial fishing industry in the Northern Territory (NT), and precisely identify their anatomical brain location.
3. Assess the effectiveness of various different tools and techniques for dispatch of small and large sharks (percussive stunning (blunt trauma inflicted using a baseball bat) vs spinal section vs shooting vs pneumatic captive bolt gun vs cartridge powered captive bolt gun vs spring loaded captive bolt gun vs (depending on OH&S requirements) electrical stunning.
4. Update the existing code(s) of practice adopted by the commercial fishing industry in the NT to include the best practice information on dispatch of sharks as prescribed under the new Regulations (Animal Protection Act 2018 (‘the new Act’) and the Animal Protection Regulations 2020 ‘the new Regulations’ in the NT.
5. Update existing electronic extension resources (www.ikijime.com, Ikijime Tool phone applications) to include the new information on location of shark brains.
6. Extend this information to the commercial fishing industries in the NT.
Communities

Security of resource access - what is legislative best practice for the commercial seafood industry?

Project number: 2019-173
Project Status:
Current
Budget expenditure: $50,000.00
Principal Investigator: Chauncey Hammond
Organisation: Seafood Industry Australia (SIA)
Project start/end date: 29 Feb 2020 - 4 Mar 2021
Contact:
FRDC

Need

The need for improved resource security was articulated at the SIA Tipping Point meeting held in Fremantle in February 2019. This event was attended by seafood industry representatives from across Australia. The absence of secure access to resources, both aquatic and terrestrial, is a major threat and looming impediment to the growth and prosperity of the Australian seafood industry. This is not a new problem, but despite debate, discussion, lobbying and advocacy for more than 2 decades, it remains an existential threat to the Australian seafood industry.

Improving security is critical to providing an environment that encourages innovation and the confidence to invest and work in our industry.

Lack of certainty of access to biological and environmental resources has significant ramifications for the mental health of our people, and negatively impacts access to business opportunities and other critical business resources including finance and staff. Flow on effects from continued resource access restrictions also affect our post-harvest businesses, freight companies and local communities across Australia.

The threats to access and resource security are varied, including:
• sharing resources with, and impacts of, other marine and terrestrial users including recreational fishers, indigenous title claims, petroleum industry,
• changes to / lack of clarity surrounding government policy and legislation,
• use of Ministerial discretionary powers, as demonstrated by the Western Australian Government intervention in the WRL fishery quota and dramatic increases of pearling lease fees,
• water quality requirements associated with aquaculture operations,
• uncertainty results in risk in financing of commercial fishing operations,
• access limitations restrict growth of jobs in the aquaculture, wild and post-harvest sectors,
• changing community perceptions
• eNGO activism such as in the small pelagic fishery, quota purchases, alternate definition of sustainability and targeting particular fishing methods,
• restriction of access through increasing reserves including Marine Parks and threats of more restrictive management plans, and
• changing environmental conditions.

Objectives

1. To evaluate international instruments to improve the security of Australia's resource access
2. Identify best practice with respect of surety of access