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A study of the sand crab (Portunus pelagicus) and its exploitation in a sub-tropical multi-sector fishery

Project number: 1984-023
Project Status:
Completed
Budget expenditure: $0.00
Principal Investigator: Mike Potter
Organisation: Department of Primary Industries (QLD)
Project start/end date: 28 Dec 1986 - 31 Dec 1986
:

Objectives

1. Compare, contrast life history parameters of sand crab in sub-tropical sth Qld vs. Gulf of Carpentaria & temperate waters.
2. Assess Moreton Bay sand crab stocks
relative impact of recreational, otterboard trawl & commercial crab pot fisheries
effectiveness existing mgt strategies & alternatives

Final report

Author: M.A. Potter W.D. Sumpton
Final Report • 1986-12-31 • 1.77 MB
1984-023-DLD.pdf

Summary

Based on logbook records the sand crab commercial pot fishery in Moreton Bay is worth in the vicinity of $2 million wholesale annually. Sand crabs are also taken as an incidental by-catch by otter trawlers and in addition Moreton Bay supports a substantial recreational fishery.

Sand crabs are caught throughout the year but fishing effort is greatest from October to June. Peak catches in the pot fishery occur during March and April when daily catch rates may exceed 3 legal males per pot. Gravid females are present throughout the year but the highest proportion of egg bearing females is found in the population during August and September. Peaks in mating activity occur in autumn and spring with recruitment of juvenile crabs commencing in November. The parasitic barnacle Sacculina granifera infects 3% of all sand crabs in Moreton Bay and a previously unreported microsporidian parasite is found in 0.7% of the population.

Tagging studies show that fishing effort and mortality of sand crabs is highly variable throughout the Bay. Recapture rates for different areas vary from 1% to 65% with an overall return rate of 14%. The pattern of tag returns does not indicate any ordered directional movement of crabs either into or out of the Bay.

Male and female sand crabs exhibit differences in preferred habitat. Large males are generally more abundant in deeper water, whereas females predominate in shallower water, particularly on the top of sand banks.

Management recommendations arising from the project work include a change in the method of sand crab measurement to the width at the base of the antero-lateral spines, lowering of the existing size limit, the introduction of a bag 1 limit for recreational fishermen and an abolition of the prohibition on taking females provided that suitable management conditions can be maintained.

Industry
PROJECT NUMBER • 2018-024
PROJECT STATUS:
COMPLETED

Investigation and improvement of live Blue Swimmer Crab handling in NSW

This report presents pivotal findings from an in-depth investigation into optimising live handling practices for the commercial Blue Swimmer Crab (Portunus armatus) industry in New South Wales (NSW), with the overarching goal of unlocking high-value live trade opportunities. Initiated in...
ORGANISATION:
Department of Primary Industries (QLD)
Industry
PROJECT NUMBER • 2017-020
PROJECT STATUS:
COMPLETED

Identification of muscle parasite in Yellowtail Kingfish (Seriola lalandi) and Mahi Mahi (Coryphaena hippurus), and determination as to the efficacy of non-invasive screening technology for the purpose of identifying infected fish in a commercial fish processing environment

Yellowtail kingfish (Seriola lalandi) and Mahi mahi (Coryphaena hippurus) are actively targeted by fishers in the warmer waters of northern NSW. Both species are becoming increasingly important to local fishers with escalating demand due to increased consumer awareness of the premium eating quality...
ORGANISATION:
Department of Primary Industries (QLD)
Environment
PROJECT NUMBER • 2019-079
PROJECT STATUS:
COMPLETED

Knowledge for Productivity: Phase I - Lake Wooloweyah

This project focused on restoring tidal connectivity to a portion of the Clarence River estuary (Lake Wooloweyah) to enhance fisheries productivity. The work provides a case study for similar initiatives in other estuaries.
ORGANISATION:
University of Newcastle

Sustainable Fishing Families: Developing industry human capital through health, wellbeing, safety and resilience

Project number: 2016-400
Project Status:
Completed
Budget expenditure: $122,840.52
Principal Investigator: Tanya King
Organisation: Deakin University Geelong Waterfront Campus
Project start/end date: 30 Jun 2016 - 29 Sep 2017
:

Need

By developing an evidence-based health and safety training program for Australian fishing communities, this project meets the needs of the commercial wild-catch and aquaculture industry identified in FRDC’s RD&E Program 3, ‘Communities’ and particularly theme 10, which promotes resilient and supportive communities who are able to adapt to the social impacts of change in industry business environments.

The project will address a national need, identified by VicFRAB, to better understand the social and economic contribution of commercial fisheries, by identifying and addressing potential losses incurred through the poor health and wellbeing of the industry’s human capital.

Fishers tend to work in rural and remote communities, which means they have higher rates of mortality, disease and health risk factors than urban dwellers, further impacted by reduced access to primary health care services. Fishers are at particular risk of certain kinds of illnesses (eg. skin and diet-related), as well as injury (fatality rates are more than double those in the agricultural sector). Mental health concerns are higher than average in the fishing industry, exacerbated by uncertainties within the industry including often high debt and insecurity of tenure and licencing. While both women and men are at risk, 86.9% of fishers are male, a factor placing them at greater risk of suicide.

Fisher ‘attitudes’ also impact health, such as the culture of self-reliance, particularly among males. This may make fishers resilient, but also makes them less likely to adopt preventative health practices or to use health services, and they will usually wait longer before seeking medical assistance, particularly for issues of chronic poor mental health.

The Sustainable Fishing Families project will benefit fishing families’ health, safety and resilience by promoting a self-awareness of the value of the industry’s human capital, and building their health capacity.

Objectives

1. To improve the health and wellbeing of fishing families by promoting safer and healthier work practices
2. To develop strategies to inform fisher families of appropriate physical and mental health care programs and information, including strategies to address barriers to uptake
3. To provide rigorous research that will raise the profile of the health issues and needs of Australian fishing families, and inform government, industry and health services of specific health issues and needs of, and effective support pathways for, fishing families as distinct from farming families.
4. To develop a targeted, industry-led program that will address the health issues and needs of fishing families based on the proven Sustainable Farm FamiliesTM protocol

Final report

ISBN: 978-0-646-98116-1
Authors: Tanya J. King Kirsten Abernethy Susan Brumby Tracey Hatherell Sue Kilpatrick Katarina Munksgaard & Rachel Turner
Final Report • 2019-01-21 • 4.30 MB
2016-400-DLD.pdf

Summary

This project conducted the first national survey of the health, safety and wellbeing of the Australian professional fishing industry in 2017. The results of the survey provide a baseline for the state of the wild-catch industry members across a range of indicators, including reported physical and mental health, factors affecting health and safety, factors affecting levels of stress, health and safety behaviours, and access to health services and information.
 
The project also conducted and evaluated an intensive pilot program on health, safety and wellbeing tailored specifically for fishing families. The program was modelled on an existing and highly successful program with farming families, Sustainable Farm FamiliesTM developed and delivered by the National Centre for Farmer Health, at the Western District Health Service, Victoria. The materials and presentations were reviewed and modified to reflect the specific strengths and challenges of the fishing industry. For the first time, this award-winning program is now available for use by fishing communities across the country.

Project products

Brochure • 2019-10-01 • 3.65 MB
2016-400 Fishing Families-Key Survey Findings Final.pdf

Summary

In 2017, the National Health, Safety and Wellbeing survey was posted to 4,584 professional wild catch fishers across all jurisdictions of Australia through peak bodies, industry associations and large fishing companies. The survey was also made available online to capture those fishers without membership to an industry organisation. 872 surveys were returned for analysis. The survey focussed on self-reported health relating to work, and asked respondents about their physical and mental health status and perceived causes, health and safety behaviours, and access to health services and information. The survey was part of the project Sustainable Fishing Families (FRDC Project 2016-400).
Educational material • 2019-10-01 • 7.49 MB
2016-400 Managing Stress for Fishers Book Final.pdf

Summary

This resource is a way of enabling fishing families to understand stress, its impact, and learn skills to help balance stress when fishing in difficult times.

This is a resource for all people who work in the business of fishing — from deckhands to skippers to office staff.

Flyer • 2019-10-01 • 2.55 MB
2016-400 Sustainable Fishing Families Flyer Final.pdf

Summary

Sustainable Fishing Families is a health program specifically designed for fishing families to address the health, wellbeing and safety issues facing the fishing industry through an evidence-based health program run by rural health experts

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