Leeuwin Environment Index - Pelagic Recruitment Strength Relationship
Funder
Fisheries Research and Development Corporation
Funding Amount
$15,630.00
Summary
Objectives: 1. To develop a method to systematically measure key environmental and oceanographic variables in the Cape Leeuwin region 2. To develop a leeuwin Environment Index (LEI) to predict Australian salmon recruitment levels along the southern ocean continental shelf 3. To establish an effective information transfer system where monthly LEI information is conveyed to fisheries managers and industry 4. To provide a framework to develop a LEI for pelagic species such as ....Objectives: 1. To develop a method to systematically measure key environmental and oceanographic variables in the Cape Leeuwin region 2. To develop a leeuwin Environment Index (LEI) to predict Australian salmon recruitment levels along the southern ocean continental shelf 3. To establish an effective information transfer system where monthly LEI information is conveyed to fisheries managers and industry 4. To provide a framework to develop a LEI for pelagic species such as SBT crustaceans shellfish and freshwater species Read moreRead less
Habitat And Fisheries Production In The South East Fishery Ecosystem
Funder
Fisheries Research and Development Corporation
Funding Amount
$568,549.00
Summary
Objectives: 1. Survey the structure and broad definitions of habitat types and associated fish assemblages in the SEF shelf ecosystem 2. Assess the selectivity of different commercial gear types for quota species in different habitats 3. Assess the relative abundance, age composition, distribution and vulnerability to fishing gear of key commercial species, primarily redfish and warehous 4. Evaluate the importance of hard ground as a refuge for commercial fish species ....Objectives: 1. Survey the structure and broad definitions of habitat types and associated fish assemblages in the SEF shelf ecosystem 2. Assess the selectivity of different commercial gear types for quota species in different habitats 3. Assess the relative abundance, age composition, distribution and vulnerability to fishing gear of key commercial species, primarily redfish and warehous 4. Evaluate the importance of hard ground as a refuge for commercial fish species 5. Define the major trophic linkages of SEF quota species by habitat type and identify the relative importance of benthic, pelagic and inshore sources of production to quota fish species 6. Develop hierarchical models based on the fishery and on the fishery ecology Read moreRead less
Developing Fishery-independent Surveys For The Adaptive Management Of NSW’s Estuarine Fisheries
Funder
Fisheries Research and Development Corporation
Funding Amount
$1,026,442.00
Summary
The above Background explains why it is necessary to develop a standardized fishery-independent sampling strategy to provide estimates of relative abundances and demographies of populations of fish in the estuaries of NSW which will be used in conjunction with existing and any new sources of fishery-dependent data (from commercial and recreational fisheries). Before these surveys can be implemented, however, it is necessary to do several pieces of very important research.
Firstly, the c ....The above Background explains why it is necessary to develop a standardized fishery-independent sampling strategy to provide estimates of relative abundances and demographies of populations of fish in the estuaries of NSW which will be used in conjunction with existing and any new sources of fishery-dependent data (from commercial and recreational fisheries). Before these surveys can be implemented, however, it is necessary to do several pieces of very important research.
Firstly, the correct sampling tools and methods need to be developed. Whilst we acknowledge that commercial and scientific fishing gears are available, these have been designed to capture very specific species and sizes of species. We need to modify these and other gears to develop new techniques that will sample wider size ranges and diversities of fish than is the case for commercial and recreational fisheries. Specifically, we need to determine the best suite of gears to use to catch as wide a size and species range of fishes as possible in as many different habitats as possible.
Secondly, once the best tools have been developed, appropriate spatial and temporal scales of sampling and units of replication need to be determined so that an ongoing survey design based on a rigorous sampling protocol can be implemented for the decades to come. Objectives: 1. Develop scientific sampling tools to catch the widest possible size range and diversity of fish species in NSW’s estuaries. 2. Use the gears developed in objective 1 to do pilot studies to determine the most cost-effective, optimal number of replicates, sites, locations and habitats to be sampled in and among estuaries. 3. Use the results from objectives 1 and 2 to design the optimal sampling regime that will become the long-term, large-scale survey of the fish populations in NSW estuaries. Read moreRead less
Developing An Early Life-course Population Mental Health Monitoring System
Funder
National Health and Medical Research Council
Funding Amount
$68,779.00
Summary
I will lead the development of the first set of population mental health indicators, spanning birth to young adulthood (0-24 years). I bring 15 years' experience as a leader in high quality government surveillance to this work. I will review evidence for key indicators and will test implementation of seven connected surveys in two rural Victorian communities. My research will address known evidence gaps in the fields of mental health and epidemiology, as well as support community-level responses
Spawning And Larval Recruitment Processes Of Commercially Important Species In Coastal Waters Off Victoria
Funder
Fisheries Research and Development Corporation
Funding Amount
$197,820.00
Summary
Objectives: 1. To collect ichthyoplankton and physical, chemical and oceanographic data in Bass Strait during the winter of 1997 and the summer of 1997/98. 2. To describe the composition, abundance and spatial distribution of fish eggs and larvae, with particular reference to the early stages of commercially-important inshore fish species and those of the south-east trawl fishery. 3. To determine the areas and season of the spawning of King George whiting (Sillaginodes punctata) ....Objectives: 1. To collect ichthyoplankton and physical, chemical and oceanographic data in Bass Strait during the winter of 1997 and the summer of 1997/98. 2. To describe the composition, abundance and spatial distribution of fish eggs and larvae, with particular reference to the early stages of commercially-important inshore fish species and those of the south-east trawl fishery. 3. To determine the areas and season of the spawning of King George whiting (Sillaginodes punctata) off the Victorian coast. 4. To determine the abundance of the different developmental stages of King George whiting at different locations and identify the possible occurrence of larval transport by back calculating the age of larvae. 5. To determine the areas and season of spawning of pilchards (Sardinops sagax) off the Victorian coast and to describe the horizontal and vertical distribution of eggs and larvae. 6. To identify regions of changing nutrient and chlorophyll concentration, and their relationship to physical properties (S,T) and ichthyoplankton abundance. 7. To collect physical oceanographic data and satellite images to extend the 3-D Bass Strait hydrodynamic model of coastal currents. 8. To describe the spatial and seasonal distribution of rock lobster phyllosomes and giant crab megalopa. Read moreRead less
Deepwater Survey Of Crustacean Resources Off The North-west Shelf
Funder
Fisheries Research and Development Corporation
Summary
Objectives: 1. Determine the distribution, abundance, catch rates & size composition of Metanphrops species, carid & penaeid prawns off the North-west Shelf and 2. relate these parameters to depth, temperature, salinity and substrate
Development Of A Fishery-independent Index Of Abundance For Juvenile Southern Bluefin Tuna
Funder
Fisheries Research and Development Corporation
Funding Amount
$538,955.00
Summary
Objectives: 1. To conduct an aerial survey for SBT over the Great Australian Bight each summer season from 1997 to 1999 and estimate various surface abundance indices. 2. To complete the statistical research required to (a) incorporate environmental variables into the estimates; (b) incorporate estimates of the proportion of SBT at the surface under various environmental conditions; (c) reduce the sampling error in the estimates due to uncertainty in school size and fish size estimates ....Objectives: 1. To conduct an aerial survey for SBT over the Great Australian Bight each summer season from 1997 to 1999 and estimate various surface abundance indices. 2. To complete the statistical research required to (a) incorporate environmental variables into the estimates; (b) incorporate estimates of the proportion of SBT at the surface under various environmental conditions; (c) reduce the sampling error in the estimates due to uncertainty in school size and fish size estimates. 3. To complete an evaluation of the usefulness of the indices of SBT abundance derived from the aerial survey. Read moreRead less
Assessment Of Trawl-induced Incidental Mortality On Pre-recruit Saucer Scallops
Funder
Fisheries Research and Development Corporation
Funding Amount
$34,300.00
Summary
Objectives: 1. Assess the level of incidental mortality induced by trawling on saucer scallops smaller than the present minimum legal size (85mm). 2. Minimise this source of mortality if significant.
Survey Sampling Design And Length-frequency Data Analysis For On-going Monitoring And Model Parameter Evaluation In The South Australian Rock Lobster Fishery
Funder
Fisheries Research and Development Corporation
Funding Amount
$219,836.44
Summary
Objectives: 1. To establish a formal protocol for a length-frequency sampling survey which satisfies the two basic statistical criteria of accuracy and precision, specifically, (1) non-biased means, and (2) quantifiable variances. 2. To incorporate the desires of the fishing industry in the practicalities of length sampling, through extensive consultation and workshops, where fishers will ultimately decide the protocol adopted, while still conforming to the criteria of 1. above that as ....Objectives: 1. To establish a formal protocol for a length-frequency sampling survey which satisfies the two basic statistical criteria of accuracy and precision, specifically, (1) non-biased means, and (2) quantifiable variances. 2. To incorporate the desires of the fishing industry in the practicalities of length sampling, through extensive consultation and workshops, where fishers will ultimately decide the protocol adopted, while still conforming to the criteria of 1. above that assure the quality of survey information. 3. To assess the range of stock assessment methods available for analysing length frequencies to estimate the fundamental population dynamic parameters describing the South Australian lobster fishery, notably, annual recruitment, annual egg production, mortality, and size structure. Read moreRead less
Assessment Of Restriction Enzyme Analysis Mitochondrial DNA For The Identification Of Stocks Of Commercially Important Marine Species And For The Detection Of Genetic Markers For The Use In Salmonid Husbandry
Funder
Fisheries Research and Development Corporation
Funding Amount
$54,045.00
Summary
Objectives: 1. Collect tissue, extract DNA. Restriction enzyme analysis to mt DNA samples to (1) calculate genome similarity, apply to known population biology to describe genome dynamics in marine spp 2. (2) survey diversity rainbow trout & Atlantic salmon. 3. Can mtDNA genome be genetic marker?