PROJECT NUMBER
•
2017-116
PROJECT STATUS:
COMPLETED
ORGANISATION:
Department of Primary Industries (QLD)
62,953 results
PROJECT NUMBER
•
2017-115
PROJECT STATUS:
COMPLETED
ORGANISATION:
Department of Agriculture, Fisheries and Forestry (DAFF) ABARES
SPECIES
PROJECT NUMBER
•
2017-113
PROJECT STATUS:
COMPLETED
Elucidating the nutritional requirements of farmed hybrid abalone
The Australian Abalone aquaculture industry continues to search for performance improvements in farmed hybrid Abalone (Haliotis laevigata x H. rubra) to satisfy increasing consumer demand. This project was the first in 25 years to comprehensively profile existing commercial feeds and found large...
ORGANISATION:
Deakin University Warrnambool Campus
SPECIES
PROJECT NUMBER
•
2017-109
PROJECT STATUS:
COMPLETED
Development of Fish Health Indicators for the Gladstone Harbour Report Card
As the link between land and sea environments, estuaries are complex ecosystems vulnerable to human impacts, which directly and indirectly affect plants and animals, including fish. Fish are key biological indicators of environmental contamination, as they are water breathers, common in aquatic...
ORGANISATION:
CQUniversity (CQU) Gladstone
SPECIES
PROJECT NUMBER
•
2017-108
PROJECT STATUS:
COMPLETED
Revision of the AQUAVETPLAN Operational Procedures Manuals for Disposal and Decontamination
Australian aquatic veterinary emergency plan (AQUAVETPLAN) for Operational Procedures Manuals for Disposal and Decontamination can be accessed from the federal Department of...
ORGANISATION:
DigsFish Services Pty Ltd
TAGS
PROJECT NUMBER
•
2017-106
PROJECT STATUS:
COMPLETED
Communicating the research, management and performance of Tasmanian marine resource industries by video
This project involved the production of videos that summarised the research and industry activities for fisheries and aquaculture in Tasmania. The six sector fisheries and aquaculture groups represented in the videos are rock lobster fisheries, abalone fisheries, recreational fisheries, small scale...
ORGANISATION:
University of Tasmania
NCCP: the likely medium- to long-term ecological outcomes of major carp population reductions
Project number:
2017-104
Project Status:
Completed
Budget expenditure:
$80,632.00
Principal Investigator:
Susan J. Nichols
Organisation:
University of Canberra
Project start/end date:
28 Feb 2018
-
31 Jul 2018
Contact:
FRDC
SPECIES
Release of CyHV-3 virus will be predicated on a sound understanding of the likely impacts of reductions in carp numbers both in terms of immediate effects and longer term ecological responses. Predicting post-control outcomes is particularly important where there may be permanent or transient impacts that may be negatively perceived. Recognising and quantifying uncertainty around these predictions is a critical component of providing advice on release and communication to managers and the general public.
The essential needs are;
a) A clear conceptualization of the role of carp across ecosystems to enable an expert elicitation of the likely impacts of carp control using CyHV-3.
b) To understand how ecosystems may change under scenarios of carp control by CyHV-3
c) To be able to communicate these predicted changed with defined levels of confidence to the public.
The project will identify particular ecosystem attributes expected to change in response to carp control, for example native fish species diversity and abundance, water quality, algal composition and biomass. These metrics will be selected based on current monitoring programs, and conceptualized into simple diagrams which summarise the likely impacts of carp and carp control. This preliminary understanding will underpin exploration of particular control scenarios in terms of evidence available for making predictions of effects on ecosystem attributes. These predictions will be informed by the published literature and expert elicitation from NCCP management and expert panel members.
For all scenarios, the project needs to provide an assessment of the evidence underpinning the predictions of ecosystem response, including:
• causal relationships between carp abundance and ecosystem attributes, and the role of other variables (e.g. land-use, geographic region)
• identification of knowledge gaps
Objectives
1. Develop a conceptual framework and identify ecosystem attributes expected to change in response to carp control
2. Define attribute metrics and quantify attribute independence
3. Assess the confidence of the scientific evidence underpinning the predicted outcomes
4. Provide outputs that are clearly communicable to the general public and other
1. Develop a conceptual framework and identify ecosystem attributes expected to change in response to carp control over the medium to long-term.
2. Define attribute metrics and quantify attribute independence
3. Assess the confidence of the scientific opinion /evidence underpinning the predicted outcomes
4. Provide outputs that are clearly communicable to the general public and other components of the NCCP
Report
Author:
Susan Nichols
PROJECT NUMBER
•
2017-103
PROJECT STATUS:
COMPLETED
The evaluation of two species, Cobia and Giant Grouper, as alternative species to farm in the WSSV affected areas of South East Queensland.
In 2016/17, the Rocky Point Prawn Farm, along with other farms in the Logan River region of south-east Queensland, was severely affected by a white spot disease outbreak caused by the exotic white spot syndrome virus (WSSV). Measures enforced to eradicate WSSV resulted in a complete loss of stock...
ORGANISATION:
Rocky Point Aquaculture Company Pty Ltd
SPECIES
PROJECT NUMBER
•
2017-102
PROJECT STATUS:
COMPLETED
Reducing the Number of Undefined Species in Future Status of Australian Fish Stocks Reports: Phase Two - training in the assessment of data-poor stocks
Seven data-poor assessment method training workshops were run in seven different jurisdictions (Tasmania, Victoria, South Australia, Western Australia, Northern Territory, Queensland, and New South Wales). Originally the workshops were to have been undertaken from March to the end of May 2018....
ORGANISATION:
CSIRO Oceans and Atmosphere Hobart
TAGS
SPECIES
Modification of fishery assessment and modelling processes to better take account of changes in population structure, specifically animal size, on catch rate data
Project number:
2017-101
Project Status:
Completed
Budget expenditure:
$0.00
Principal Investigator:
Klaas Hartmann
Organisation:
University of Tasmania (UTAS)
Project start/end date:
28 Feb 2019
-
29 Feb 2020
Contact:
FRDC
SPECIES
Size selectivity is an important aspect of southern rock lobster stock assessment models and has been estimated for different fleets, pot types, and areas. Temporal changes in size selectivity can lead to biased model results and can bias parameter estimates, such as pre-recruit indices (PRIs). These biases can manifest as trends that are unrelated to changes in the population characteristic they are designed to monitor. Several mechanisms for changes to size selectivity have created particular concern due to their potential to influence management decisions.
Firstly, in some areas southern rock lobster stocks are increasing significantly and are expected to continue to do so. One way in which these elevated densities may affect selectivity is if large lobsters deter small lobsters from entering pots, thus lowering the estimated PRI (an index used in TACC setting in Victoria)
Secondly, increased price differential between lobster size classes coupled with high CPUE is creating substantial incentives for high grading, both through discards and through changing fishing practices targeting different sized lobsters.
Lastly, seasonal changes in size selectivity have been observed in South Australia and may occur elsewhere. These have not been quantified and may occur in other regions.
Understanding these changes in size selectivity and mitigating the impact on the ongoing stock assessment modelling and harvest strategies will ensure robust assessments and avoid future management bias.
1. Determine lobster density and size structure impacts on selectivity
2. Develop a method for adjusting PRI for lobster density / size structure changes
3. Develop an understanding of intra seasonal size selectivity changes
4. Develop methods for quantifying the impacts of high grading on selectivity changes on an ongoing basis
5. Adapt the rock lobster stock assessment model to include selectivity changes
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