72 results
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PROJECT NUMBER • 2023-200
PROJECT STATUS:
COMPLETED

Community Sentiment Survey

Australia’s Commonwealth, state and territory governments together with regulatory bodies and local authorities have worked in partnership with the fishing industry, scientists, economists, environmental non-government organisations to establish management frameworks for fishing in...
ORGANISATION:
Intuitive Solutions

Design of a fishery independent longline survey for chondrichthyans in Northern Australia

Project number: 2023-063
Project Status:
Current
Budget expenditure: $82,125.00
Principal Investigator: Ian Knuckey
Organisation: Fishwell Consulting Pty Ltd
Project start/end date: 4 Feb 2024 - 29 Aug 2024
Contact:
FRDC

Need

Catch Per Unit Effort (CPUE) from commercial logbooks is often used as an index of abundance in stock assessments. However, the use of commercial CPUE as an indicator of relative abundance can be problematic as the underlying assumption that commercial catch rates change linearly with abundance is often compromised. Although some factors that are reported in logbooks can be used to standardise CPUE, there are other sources of variation including:
• Modified fishing practices to target or avoid species to suit quota availability, meet market demands, or to comply with management arrangements.
• Differences in selectivity of fishing gear and use of bycatch-reduction devices.
• The combined impacts of multiple management restrictions on a fishery.
For example, gillnet operations in what was once the Northern Territory’s Shark Fishery now almost exclusively target Grey Mackerel. This change in practice has resulted in an index that is losing its relevance in assessing shark species.

Over 140 elasmobranchs are listed on CITES Appendix II, with the likely-hood that more species will be added in the future. Of the 11,082t of shark landed by the fishery since 2000, CITES listed Hammerheads comprise 17.25% of the shark catch. Other sharks caught by the fishery that were recently added to CITES Appendix II at the Nineteenth meeting of the Conference of the Parties Panama City (Panama), 14 – 25 November 2022 include: Grey Reef Shark, Dusky Whaler, Sandbar Shark, Lemon Shark, Whitecheek shark and all other members of the family Carcharhinidae (which include the Blacktip Shark complex that is the main shark species caught by the fishery - 4688t or 42% since 2000). These species will require a positive Non-Detriment Finding (NDF) and CITES export permit in order to be exported following the 12-month delay in implementation (i.e., December 2023). The fishery also catches Threatened, Endangered and Protected Elasmobranchs, some of which are also CITES listed.

Gillnet and longline effort has decreased since 2000 and there is significant latent effort in the fishery. There is a desire to utilise this latent effort, however, the CITES listing of the majority of sharks species caught in the fishery will increase scrutiny from State, Commonwealth and International environmental agencies, as well as NGOs. This heightened scrutiny will provide greater impetus to demonstrate that shark stocks are at sustainable levels and that fishing is being undertaken sustainably.

There is a strong need for independent survey methods to gain a better understanding of the abundance patterns of shark species over time that can contribute to the development of appropriate management of these species that meets environmental, fisheries, and conservation needs.

Surveying Northern Australia using longlining methods would provide a fishery independent estimate of relative abundance for sharks that would improve economic security and public confidence in sustainability. However, to make an informed decision of the feasibility of a survey a full understanding of the scope of work and cost required is needed. There is a need to look at existing long line surveys undertaken worldwide (e.g. in the USA and Bahamas), to understanding the methods undertaken and the time period required to develop accurate abundance estimates.

Objectives

1. Analysis of commercial logbook data to inform fishery independent survey design
2. Conduct a literature review to determine potential design of longline fishery independent survey
3. Hold a workshop to discuss options for a NT shark longline survey
4. Develop final design and costs for a NT shark longline survey
Adoption

National Social and Economic Survey of Recreational Fishers 2019

Project number: 2018-161
Project Status:
Current
Budget expenditure: $1,233,986.95
Principal Investigator: Andy (Anthony) Moore
Organisation: University of Canberra
Project start/end date: 3 Mar 2019 - 19 Jun 2021
Contact:
FRDC

Need

Currently there is a lack of national scale, consistent and robust data on the motivations and behaviours of recreational fishers, and lack of robust data on the social and economic contribution of recreational fishing. Where many commercial fisheries have regular collection and estimation process for economic data, this is not the case for recreational fishing in most of Australia. This lack of data also includes behaviour and motivations and how they are changing. These data are useful for informing discussions on resource allocation and in understanding and managing recreational fisheries more generally. If these data are to be used to inform governments and the general public, there is a need to make sure it is collected in a robust way that is representative of the Australian population. Large scale representative data sets are often expensive to acquire and as a result do not get undertaken regularly. One off surveys only provide useful data for any particular point in time, but understanding trends can often be more useful. This study aims to implement and test methodologies to provide a robust and representative sample, while trying to reduce costs to allow for more regular data gathering. To do this requires addressing another need: that of testing new survey methodologies for collecting data from recreational fishers that enables assessment of social and economic contribution. Recreational fishing surveys traditionally use probability based phone or mail surveys, however both methods are experiencing rapid decline in response rates and representativeness. It is expected that going into the future, online surveys that use a range of appropriate recruitment methods will be the most common survey method. There is a need to invest in establishing robust approaches to using these methods, and in understanding how their findings differ to those of traditional probability based surveys.

Objectives

1. Assess social and economic contribution of recreational fishing using multiple methods, including direct and flow-on economic benefits, and market and non-market benefits
2. Identify which approaches to recruiting survey participants and completing surveys produce the most representative and robust results
3. Recommend most appropriate and cost effective survey method to use to track change social and economic aspects of recreational fishing in Australia over time

Final report

Authors: Moore A Schirmer J Magnusson A Keller K Hinten G Galeano D Woodhams J Wright D Maloney L. Dix A.
Final Report • 2023-02-21 • 5.80 MB
2018-161-NRFS_main report_FINAL_19Feb2023.pdf

Summary

The NRFS involved three stages of data collection. An overview of the three stages of data collection and the purpose of each, and a guide summarising which chapters draw on data from each stage of data collection, are provided in the next section. Sections 3.4, 3.5 and 3.6 provide a detailed description of the methods used to collect and process data in Stages 1, 2 and 3 respectively. These sections explain, for each stage:
  • The purpose/objectives of data collection
  • Data collection methods, including design of survey instruments and survey recruitment materials, survey sample recruitment methods and sample achieved
  • Data processing methods, including data coding and cleaning, and weighting methods.

Project products

Report • 2023-06-05 • 481.14 KB
2018-161-FRDC-report-Bait-and-Berley-FINAL.pdf

Summary

The outbreak of white spot disease, caused by white spot syndrome virus (WSSV) (Whispovirus sp.), in South-East Queensland (Qld) in 2016–17, the recognition of new and emerging diseases, and advances in scientific knowledge since the release of the Generic import risk analysis report for prawns and prawn products 2009 (the Prawn IRA; Biosecurity Australia 2009) highlighted the need to review the biosecurity risks of prawns imported into Australia (the prawn review).

 

The Prawn IRA 2009 considered that the regular introduction of imported prawns, intended for human consumption, into the aquatic environment, through use as bait or berley presented a significant pathway for exposure of Australian crustaceans to imported prawns potentially infected with hazards. Surveys conducted in 2002 and 2007 investigating the use of prawns, intended for human consumption, as bait or berley provided significant data inputs for the Prawn IRA 2009. There had not been national surveys conducted since that time. Therefore, it was identified that the prawn review needed current data on the use of prawns as bait or berley to ensure the conclusions were based on current information. Questions to characterise the extent of the use of prawns purchased from seafood retailers as bait and berley by recreational fishers in Australia were nested within the 2019-20 National Recreational Social and Economic Survey of Recreational Fishers (Moore et al. 2023).

 

Results from this survey indicate that prawns were the most popular bait used by recreational fishers over the survey period, followed by various kinds of saltwater fish and cephalopods (octopus/squid/cuttlefish). While prawns were the most popular bait type nationally, there were differences at the jurisdictional level, with recreational fishers in Western Australian, Tasmania and the Northern Territory most commonly using cephalopods, while South Australian fishers most commonly used ‘other shellfish’.

 

Of the respondents who reported using prawns as bait and/or berley, 85% indicated that they had bought prawns from a bait supplier, while 20% indicated that they had bought prawns from a seafood retailer (some respondents reported purchasing prawns from both sources). Uncooked whole prawns were the most common prawn type purchased from a seafood retailer, with most respondents indicating that they had purchased a total of less than 1 kg over the previous 12 months. Most fishers reported using Australian origin prawns, but some reported using imported prawns or that they were unsure of the origin of the prawns they were using as bait.

 

To test whether recreational fishers are aware of the risks of using imported prawns intended for human consumption as bait, the survey also asked recreational fishers if they had seen advice regarding the use of imported seafood prawns as bait and berley. Almost half of all respondents said that they had seen advice regarding the use of imported seafood prawns as bait and berley, with the highest levels of awareness in Queensland and the lowest in Victoria.

Industry
PROJECT NUMBER • 2018-097
PROJECT STATUS:
COMPLETED

Survey of Enterprise-level Biosecurity across the Australian Aquaculture Industry

The Australian Government Department of Agriculture and Water Resources (the department) commissioned the independent research company Instinct and Reason to conduct a survey aimed at farm owners/managers in the Australian aquaculture industry. The survey aimed to investigate the level of...
ORGANISATION:
Instinct and Reason
Communities
PROJECT NUMBER • 2017-010
PROJECT STATUS:
COMPLETED

A re-examination of underlying model assumptions and resulting abundance indices of the Fishery Independent Survey (FIS) in Australia’s SESSF

The model-based Fishery Independent Survey (FIS) for the Southern and Eastern Scalefish and Shark Fishery (SESSF) was developed in the lead up to the first survey in 2008 and is unique in a fisheries context in that it differs from a random stratified design, thereby allowing considerable...
ORGANISATION:
CSIRO Oceans and Atmosphere Hobart
Industry
PROJECT NUMBER • 2019-214
PROJECT STATUS:
COMPLETED

Survey for WSSV vectors in the Moreton Bay White Spot Biosecurity Area

The objective of this project was to undertake opportunistic plankton sampling and collect small non-commercial species of decapod crustaceans in northern Moreton Bay and near the intakes of the three prawn farms which remained operating on the Logan River during April and May 2020, at a time when...
ORGANISATION:
DigsFish Services Pty Ltd
Adoption
PROJECT NUMBER • 2020-056
PROJECT STATUS:
CURRENT

Evaluation of a smart-phone application to collect recreational fishing catch estimates, including an assessment against an independent probability based survey, using South Australia as a case study

Information on recreational catch and effort is becoming increasingly important to inform fishery stock assessment and the sustainable management of fisheries resources. As smartphone applications ('apps') become more sophisticated and widely available, they are increasingly being used to record...
ORGANISATION:
University of Adelaide
Environment
PROJECT NUMBER • 2019-072
PROJECT STATUS:
CURRENT

Multiple - Before After Control Impact analysis of the effect of a 3D marine seismic survey on Danish Seine catch rates

The project is a four phase research program being conducted in the Danish seine commercial fishery off Lakes Entrance that looks to: 1. Examine effect of seismic testing on Danish seine catch rates of Tiger Flathead 2. Examine effect of seismic testing on Danish seine catch rates...
ORGANISATION:
Fishwell Consulting Pty Ltd
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