145 results

RFIDS: a coordinated national data collection for recreational fishing in Australia

Project number: 2011-036
Project Status:
Completed
Budget expenditure: $475,000.00
Principal Investigator: Shane Griffiths
Organisation: CSIRO Oceans and Atmosphere Hobart
Project start/end date: 14 Jul 2011 - 29 Jun 2013
Contact:
FRDC

Need

In many states and regions around Australia there is a lack of current and reliable recreational fisheries data (e.g. participation rates, catch) that can be used in decision-making processes. Since the stock boundaries of some recreationally-important species can span several State and Federal jurisdictions, reliable stock-specific data is needed. The results of the last national recreational fishing survey undertaken in 2000-2001 are now considered outdated in many respects, or are of limited use for rarely-caught species and some fisheries or regions due to issues of scale.

Since the national survey, various recreational fishing surveys have been undertaken by State fisheries agencies to address their own specific management issues. These surveys have generally been telephone-diary approaches based on the National survey methodology. Additionally, community-based recreational fishing data collection have been undertaken at regional levels by community and recreational fishing groups. However, there has been a lack of coordination between agencies to report at a national level. Therefore, there is a need to assess the feasibility of aggregating data from these surveys to provide reliable up-to-date information at regional and national levels.

Objectives

1. Provide an understanding of the current state of knowledge, and identify information gaps, across the recreational fishing sector at a national scale
2. Explore approaches to filling key information gaps and begin development of system(s) and protocols that will allow data to be stored, aggregated and analysed to answer questions related to recreational fishing in a timely and responsive way
3. Assess the feasibility of aggregating available recreational fishing datasets to provide reliable regional and national information on catch, effort, participation, and social and economic aspects in the recreational fishing sector

ERA extension to assess cumulative effects of fishing on species

Project number: 2011-029
Project Status:
Completed
Budget expenditure: $197,367.00
Principal Investigator: Shijie Zhou
Organisation: CSIRO Oceans and Atmosphere Hobart
Project start/end date: 28 Sep 2011 - 14 Oct 2012
Contact:
FRDC

Need

National and international fisheries management policies require that the exploitation of fisheries resources should be conducted in a manner consistent with the principles of ecologically sustainable development, in particular the need to consider the impact of fishing activities on non-target species and the long term sustainability of the marine environment. AFMA’s Ecological Risk Management (ERM) framework details a process for assessing and progressively addressing the impacts that fisheries’ activities have on marine ecosystems based on the ecological risk assessment for the effect of fishing (ERAEF). The ERAEF, which assesses species-by-species impacts of fishing on all species encountering a particular fishing activity, is perhaps the most comprehensive assessment method supporting ecosystem-based fisheries management currently available. This method has been applied to the majority of Commonwealth fisheries, however, these assessments only take account of risk to individual species from individual Commonwealth fisheries or sub-fisheries. It is the cumulative impact from all fisheries/sub-fisheries on each individual species that determines the species’ overall sustainability. However, the cumulative risk to a species across all Commonwealth and state-managed fisheries in which it is captured cannot currently be quantified at level 2 in ERAEF, the productivity-susceptibility assessment (PSA), nor at level 3 sustainability assessment for fishing effect (SAFE) for most fisheries. A recent study shows potentially very high levels of overlap for many species across several Commonwealth fisheries, and some state-based fishery assessments have also highlighted the importance of extending the ERAEF toolbox to include a cumulative risk assessment tool. There is an urgent need to develop methods and conduct ecological risk assessments on the cumulative impact of all species encountered by multiple fisheries.

Objectives

1. Scope the range of applications and review existing methods for measuring cumulative effects of capture fishing on species that are caught across a number of different fisheries or sub-fisheries.
2. Scope the different data sources that are currently available and those that may be required to include assessment of cumulative effects under future ERAs.
3. Develop methods for assessing cumulative risk from multiple fisheries or sub-fisheries including recreational and international fisheries, where feasible, on each individual fish species and stock, especially methods that can be applied to data poor fisheries.
4. Apply the method to selected Commonwealth fisheries that operate in the same area with high levels of effort and multiple gear types, e.g., in the southeast region, with further consultation with AFMA.
5. Describe the trade-off between the costs of collecting data for ERA as compared to the benefit returned to the industry/management of the approach.

Final report

ISBN: 978-1-4863-0153-9
Author: Shijie Zhou
Environment
PROJECT NUMBER • 1995-016
PROJECT STATUS:
COMPLETED

The impact of changes in fishing patterns on red-legged banana prawns (Penaeus indicus) in the Joseph Bonaparte Gulf

The fishery for red-legged banana prawns in the Joseph Bonaparte Gulf (JBG) developed in the early 1980s. Since then, fishing effort has varied from 700 to 2600 boat-days per year and catches range from 200 to 1000 tonnes per year. Initially the JBG fishery developed as an alternative to fishing in...
ORGANISATION:
CSIRO Oceans and Atmosphere Hobart
Environment
PROJECT NUMBER • 2009-029
PROJECT STATUS:
COMPLETED

Ecological risk assessment for effects of fishing on habitats and communities

It is now widely recognized that fisheries can have impacts on marine species, habitats and ecosystems beyond the direct impacts of fishing on target species. For example, hundreds of species are regularly caught and discarded in many trawl and longline fisheries and in particular, interactions with...
ORGANISATION:
CSIRO Oceans and Atmosphere Hobart
View Filter

Organisation