30 results

Summer spawning patterns and preliminary Daily Egg Production Method survey of Jack Mackerel and Sardine off the East Coast

Project number: 2013-053
Project Status:
Completed
Budget expenditure: $220,000.00
Principal Investigator: Timothy M. Ward
Organisation: SARDI Food Safety and Innovation
Project start/end date: 19 Dec 2013 - 19 Dec 2014
Contact:
FRDC

Need

Knowledge of the summer spawning patterns of Jack Mackerel and Australian Sardine is needed to underpin future assessment of these stocks and to underpin the ecologically sustainable development of pelagic fish resources off the East Coast of Australia.

Methods for estimating the population size of Jack Mackerel and Australian Sardine need be established to address community concerns regarding the potential ecological and social impacts of large scale fishing for small pelagic fishes off the East Coast.

Objectives

1. Establish methods for estimating adult reproductive parameters of Jack Mackerel and Australian Sardine off the East Coast.
2. Determine distribution and abundance of eggs and larvae of Jack Mackerel and Australian Sardine off East Coast during summer
3. Produce preliminary estimates of the spawning biomass of Jack Mackerel and Australian Sardine off the East Coast during summer

Final report

ISBN: 978-1-921563-73-7
Author: Tim M. Ward
Final Report • 2015-03-18 • 1.73 MB
2013-053-DLD.pdf

Summary

This study was undertaken collaboratively by fisheries scientists from the South Australian Research and Development Institute (SARDI) and the University of Tasmania. It was the first dedicated application of the Daily Egg Production Method (DEPM) to Jack Mackerel, Trachurus declivis. It successfully collected large numbers of samples of eggs and adults concurrently from the key spawning area off eastern Australia during what has been previously identified as the main spawning period. The study established an effective method for sampling adult Jack Mackerel and provides the first estimates for this species of the adult reproductive parameters required for application of the DEPM. The spawning biomass of Jack Mackerel off eastern Australia during January 2014 was estimated to be approximately 157,805 t (95% CI = 59,570  358,731). Most of the estimates of spawning biomass obtained in sensitivity analyses were between approximately 95,000 t and 215,000 t. Plausible values for only two parameters provide estimates of spawning biomass that were outside that range; both of these parameters were estimated with a high degree of confidence in the present study. 

This was also the first study to investigate the spawning habitat of Australian Sardine Sardinops sagax off eastern Australia during summer. It showed that during January 2014 spawning occurred between northern Tasmania and southern Victoria. The spawning biomass at this location during this period was approximately 10,962 t. This estimate should be treated with caution as adult samples were not collected during the study.  It also is important to note that this not an estimate of the total adult biomass of Australian Sardine off eastern Australia. It is only an estimate of the portion of the population that was spawning in this southern part of the range during that period. The main spawning area of Australian Sardine off eastern Australia occurs off southern Queensland and northern NSW during late winter and early spring.

Keywords: Jack Mackerel, Trachurus declivis, Australian Sardine, Sardinops sagax, Daily Egg Production Method, Spawning Biomass, Small Pelagic Fishery, eastern Australia, Tasmania, Bass Strait.

Seafood CRC: new product development for low value, high volume species - WA Sardines

Project number: 2010-775
Project Status:
Completed
Budget expenditure: $48,249.47
Principal Investigator: Janet Howieson
Organisation: Curtin University
Project start/end date: 31 Mar 2011 - 31 May 2012
Contact:
FRDC
SPECIES

Need

Sardines have traditionally been an undervalued species in WA, with the majority of product going for
angler bait and tuna aquaculture feed at an average price of around $1.20/kg. It has been
recognised that there are opportunities in the human consumption market for this fish due to the
relatively high volumes of sustainable production and the perceived health benefits as an oily fish. As a
result some research has focused on increasing the value of sardines in WA, and indeed some
product development and consumer survey work has been undertaken and various value added
products produced (FRDC Project Report 95/142). Generally, however, these products have not had
long term success , partly due to the reduction in supply after the ‘pilchard kills’ of the 1990’s and partly to a disconnect in the production, processing and marketing chain. This project, using methods developed in the accelerated product development project CRC 2010/706, will increase the chance of producing products with market longevity by developing products and an aligned supply chain to meet a specific and pre-identified market opportunity.

To be successful, selling sardines for human consumption needs the expertise of project partners, through the whole chain to identify and exploit new market opportunities for Western Australian sardines. These potential partnerships are in place with this project encompassing producer, processor and distribution channel. Pilot production and market trials, encompassing through chain partnerships and agreed product development practices, protocols and specifications from catch to market are thus able to undertaken, improving the likelihood of market success from the value added sardine products prior to large scale production.

Objectives

1. Develop, pilot and evaluate one new sardine market opportunity.

Seafood CRC: successful sardines - post-harvest optimisation and new product development for human consumption

Project number: 2010-774
Project Status:
Completed
Budget expenditure: $81,906.84
Principal Investigator: Karen McNaughton
Organisation: SARDI Food Safety and Innovation
Project start/end date: 31 Mar 2011 - 31 Mar 2012
Contact:
FRDC
SPECIES

Need

Sardines are an undervalued species in South Australia, with the majority of the catch going for tuna feed for an average price of $0.72/kg. The industry has recognised the need to increase the value of the fishery, and that more of the catch has to be turned into value-added products for human consumption. In order to achieve this aim, it has targeted to use at least 10% of the TACC for value-adding.

Three of the licence holders have invested in equipment and processes to produce value-added products. However, individually these businesses are having limited success, struggling to adopt the technical and operational practices that are required to deliver safe, profitable products for human consumption markets both domestically and abroad. This project will provide technical expertise and experimental support to assist them in optimising raw materials, labour and equipment and to develop new products specifically for these markets.

There has been limited success in value-adding sardine products for human consumption in sardine fisheries in Australia. As a result, research has focussed on increasing the value of sardines but has not resulted in products being successfully test marketed/commercialised and evaluated. This is perhaps due to a disconnect in the supply chain between consumers, markets, distribution and processing. We now have the consumer/market intelligence to understand the barriers to sardine acceptability. We can develop products that will overcome these barriers and with the businesses already supplying into the human consumption markets, we have an identified route to market to commercialise and evaluate the success of these new products.

The project offers the opportunity for the three businesses to work together to achieve more than could be individually. They will benefit from the economies of scale that business partnerships have to ultimately deliver safe, profitable products to market for human consumption.

Objectives

1. To identify and implement optimised post-harvest value-added processes (from raw material receipt to final product dispatch)
2. To develop, trial and evaluate a range of new products (from concept to test market) for human consumption

Movement patterns and stock structure of Australian sardine (Sardinops sagax) off South Australia and the East Coast: implications for future stock assessment and management

Project number: 2009-021
Project Status:
Completed
Budget expenditure: $248,797.00
Principal Investigator: Timothy M. Ward
Organisation: SARDI Food Safety and Innovation
Project start/end date: 30 Jun 2009 - 29 Jun 2011
Contact:
FRDC
SPECIES

Need

This project is needed to assess the potential for increasing catches of sardine in the fisheries off SA (i.e. SASF) and the East Coast (i.e. NSW Ocean Haul Fishery and SPF).

For the SASF, information on the patterns and rates of movement of sardines between the Great Australian Bight (where the majority of the spawning biomass is located) and southern Spencer Gulf (where most fishing is conducted) is needed to determine whether (or not) future potential increases in the TAC should be accompanied by the establishment of zones within the fishery.

For the NSW Ocean Haul Fishery and SPF, information on the patterns and rates of movement of sardines along the East Coast is needed to assess the extent to which estimates of spawning biomass from northern NSW and southern Qld waters reflect the size of the entire sardine stock off eastern Australia.

Objectives

1. To collate data held for jurisdictions to generate hypotheses regarding movement patterns and stock structure of Australian sardine throughout southern Australia.
2. To evaluate the use of otolith shape analyses for testing hypotheses regarding the movement patterns of sardine in southern Australia.
3. To evaluate the use of transect-based otolith microchemistry techniques (laser ablation ICPMS) for examining the movement patterns of sardine between gulf and shelf waters of SA and along east coast of Australia.
4. To collate findings to determine: a) whether or not additional spatial management (zones) would be needed to support a future increase in the TAC in the SA Sardine Fishery
and b) the degree to which estimates of spawning biomass from waters off northern NSW and southern Qld reflect the size of the entire eastern Australian sardine stock.

Seafood CRC: improving quality of Australian Sardines through utilization of flow-ice technology

Project number: 2008-717
Project Status:
Completed
Budget expenditure: $20,411.22
Principal Investigator: Richard Musgrove
Organisation: SARDI Food Safety and Innovation
Project start/end date: 31 Oct 2008 - 28 Feb 2009
Contact:
FRDC
SPECIES

Need

This project will contribute toward Seafood CRC Program 1B:

Output 1.7 "Smart processing technologies and practices"

Milestone 1.7.2
Application of innovative technologies for controlling spoilage to enhance shelf-life and marketability

Milestone 1.7.6
Harvest, post-harvest and processing practices evaluated and enhanced to maximise and protect quality attributes

Milestone 1.7.8.
Technology and capability to support innovation of new seafood products developed

This project fits into the CRC “smart processing” theme

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

Global economic factors and market forces warrant the need for a significant portion of the SASF harvest to diversify from the domestic tuna feed market into higher value markets. This need is in part driven by the strength of the Australian dollar. Over the last 24 months the volume of relatively cheap imported feed has forced a significant decrease in the beach price of locally caught sardines, necessary so local catch can maintain market share. The strength of the dollar is forecast to remain high.

The South Australian Sardine Industry needs to diversify its market base and increase the portion of the annual catch that is value-added to offset the issues described above, and the associated risks of sustained low returns.

The marketability of South Australian sardines is negatively affected by high volume of the nightly catch and the limited capacity of most sardine vessels to adequately chill fish on board. There is a need to trial technology that will remove heat from fish immediately postharvest more efficiently than current practices. This will reduce spoilage and extend the shelf-life for value-added grade fish.

The implementation of post-harvest technologies such as flow-ice at the point of capture will assist the production of a higher quality product which, in turn, should increase the GVP of the SASF.

Objectives

1. Assess the utility of flow-ice in preserving the freshness of Australian Sardines from the point of harvest to processing, and wholesale and retail supply chains

Final report

ISBN: 978-1-921563-20-1
Authors: R Musgrove T D’Antignana J Carragher
Final Report • 2010-04-29 • 529.50 KB
2008-717-DLD.pdf

Summary

This project assessed the utility of flow-ice in preserving the freshness of Australian Sardines from the point of harvest to processing, and wholesale and retail supply chains. Trials were carried out on the Gemma Marie (White Fisheries) based at Port Lincoln, South Australia. Experiments involved comparisons between flow ice (FI), ice slurry (IS) and refrigerated seawater (RSW) at a fish:cooling medium ratio of 1:1. Core temperatures were recorded from fish stored in FI and IS for up to two days; with associated shelf-life trials running up to six days. Fish were also sent to markets (SAFCOL, Angelakis and Cappo Bros in Adelaide, and Sydney Fish Market) for appraisal and sale.

The data collected indicated the greater cooling effectiveness of flow ice and its beneficial effect on fish quality (through lower Quality Index Method (QIM) scores). Sardines in FI reached 2°C after approximately nine minutes and O°C within 11 minutes. Fish in IS took 30 minutes to reach 2°C and few cooled beyond this point. All batches of fish chilled with FI that were sent to market as part of this study were better than average, and, in one case, the best they had seen in a long time. However, there was no difference in price between sardines chilled in flow ice and those chilled in ice slurry. The study was terminated due to persistent mechanical failures of the leased flow ice machine. Thus, further work is necessary to explore the potential of flow ice, particularly at higher fish:cooling medium ratios. It may be that auction market price is not the best indicator of product quality and it is therefore suggested that QIM and other tests such as further storage, and filleting and cooking trials be carried out using sardines treated with the technology.

Environment
PROJECT NUMBER • 2008-064
PROJECT STATUS:
COMPLETED

Tactical Research Fund: Management Strategy Evaluation (MSE) of the harvest strategy for the Small Pelagic Fishery

In 2008, the Australian Fisheries Management Authority (AFMA) developed a harvest strategy for the Commonwealth’s Small Pelagic Fishery (SPF) (AFMA 2008) in accordance with the Commonwealth Fisheries Harvest Strategy Policy (DAFF 2007). Before its completion, an independent review was conducted...
ORGANISATION:
Department of Agriculture, Fisheries and Forestry (DAFF) ABARES

Tactical Research Fund: Assessment of the acoustic ability of the common dolphin (Delphinus delphis) and the development of acoustic mitigation measures to minimise their interaction with purse seine fisheries

Project number: 2007-065
Project Status:
Completed
Budget expenditure: $44,478.15
Principal Investigator: Geoff McPherson
Organisation: SA Sardine Industry Association Inc
Project start/end date: 29 Nov 2007 - 31 Aug 2008
Contact:
FRDC
SPECIES

Need

On 25 August 2005, the SA Government closed the SASF in response to results from independent observer coverage in the fishery and concerns associated with encirclement and mortality rates of common dolphin.

The SASF TEPS Code of Practice developed prior to the fishery has been effective in reducing the encirclement and mortality rate initially reported but still requires improvement to ensure the fishery is operating sustainably.

Recent communication between PIRSA and SAMSSIA in relation to interim results from the observer program (July 2006 – June 2007) has highlighted that improvement of the SASF TEPS Code of Practice is an immediate priority.

Investigations by the SASF TEPS WG suggests there is scope to develop an acoustic mitigation signature that will further reduce the encirclement and mortality rate of common dolphins and improve the effectiveness of the TEPS Code of Practice.

Considering the importance the SA Government places on effective TEPS mitigation the development of underwater acoustic mitigation technology presents the greatest potential to improve the SASF’s TEPS Code of Practice.

This project will address FRDC’s strategic challenge to improve the management and use of aquatic natural resources to ensure their sustainability; has a high likelihood of success considering the success of acoustic behavioral modification on similar species(Leeney et al 2007) and in relation to the common dolphin (Morizur et al 2007) and has a high likelihood of adoption by industry as a successful outcome will be incorporated into the TEPS Code of Practice which is adhered to by 100% of the licence holders in the fishery.

The SASF is a key economic driver in the region and all efforts to maintain and secure access rights through the adoption of sustainable fishing practices are warranted.

Letters of support for this project from PIRSA Fisheries and SAMSSIA are attached to this application.

Objectives

1. Determine the ambient sound levels in open water within the South Australian sardine fishery.
2. Determine and model the acoustic propagation rates for given pinger signals in open water in sardine environments and through sardine schools to determine the likely transmission loss and received signal level.
3. Identify the various acoustic characteristics of purse seine fishing operations, particularly to detect signal characteristics that differentiate between vessel steaming and the commencement of fishing activity.
4. Determine the acoustic characteristics of FM tones and the detection distance of directional broadband clicks for the common dolphin.
5. Identify the sound output parameters for acoustic pingers and additional output signals that will be appropriate for mitigation of interaction with common dolphin.
6. Assess the effect of acoustic pinger signals on sardine schools by monitoring sardine school integrity and compactness using available vessel sonar systems and qualitative assessments of fishing masters.
7. Complete two high capacity / long-term acoustic data loggers specifically to determine bearing-to- target vectors of FM tone and broadband click sound source generators (i.e. common dolphins).

Effects of environmental variability on recruitment to fisheries in South Australia

Project number: 2006-046
Project Status:
Completed
Budget expenditure: $49,709.00
Principal Investigator: John Middleton
Organisation: SARDI Food Safety and Innovation
Project start/end date: 13 Aug 2006 - 29 Aug 2008
Contact:
FRDC

Need

Fisheries recruitment is generally variable and seldom related to spawning stock size, except in the case of salmonid fishes. Environmental variability has a large effect on recruitment that can be stronger than the effect of stock size. It is difficult to understand whether fishing pressure is affecting stock sizes unless we have some understanding of how the environment affects the populations of exploited species. While the environment is known to significantly affect recruitment, the relationship is complex and multivariate. To gain insight into the relationship, we need to assemble a range of environmental variables for appropriate statistical analyses. These data are often scattered, and have varying spatial and temporal resolutions and quality. An important step along the way to elucidating relationships between environment and recruitment is to compile the datasets into a form that can be spatially matched, appropriately averaged and statistically scaled to extract the environmental signal from the background noise that could otherwise obscure a relationship with recruitment.

If environmental indices are related to fisheries recruitment of specific species (e.g. marine scale fish, rock lobsters and prawns) then management can use the indices (1) to understand the physical processes that account for variability in recruitment and fishery productivity, (2) possibly predict recruitment a year or two in advance, and (3) to speculate about the effects of global warming on our fisheries.

Pearce et al. (FRDC 94/032) compiled time series of environmental variables in Western Australia, and found that variations in the strength and path of the Leeuwin Current affected mainly the larval stages of commercial species. The magnitude and sign (positive or negative) of the effect differed by species. We will build on this study, incorporating some of their recommendations, to gain insight into the processes affecting recruitment.

Objectives

1. Compile an integrated spatial database of environmental variables for the SA region including Southern Oscillation Index, satellite imagery, satellite data (SST, ocean colour data and altimetry), chlorophyll, bottom temperatures, CTD profiles, derived water column stability, wind data (speed, direction and wind stress), and derived upwelling indices.
2. Compile the model-based and measured recruitment indices for S.A. fisheries including King George whiting, snapper, garfish, rock lobster, prawns and abalone over as along a period as possible. Compile suitably averaged pilchard larval abundance as an index of recruitment in the absence of a true measure of recruitment.
3. Relate the recruitment indices for King George whiting, snapper, garfish, rock lobster, prawns and abalone, and the larval abundance of pilchard to the environmental variables with the goal of understanding the effect of environmental fluctuations on the recruitment of each species.

Final report

ISBN: 978-1-921563-29-4
Author: John Middleton

Establishing ecosystem-based management for the South Australian sardine fishery: developing ecological performance indicators and reference points to assess the need for ecological allocations

Project number: 2005-031
Project Status:
Completed
Budget expenditure: $799,999.00
Principal Investigator: Timothy M. Ward
Organisation: SARDI Food Safety and Innovation
Project start/end date: 29 Jun 2005 - 1 Nov 2008
Contact:
FRDC

Need

Provisions of the Commonwealth Environment and Biodiversity Conservation Act require strategic assessment and, if necessary, mitigation of the ecological effects of fishing, including trophic impacts.

The strategic assessment of the South Australian pilchard fishery identified the need to measure and minimize the impacts of the fishery
on the “broader ecosystem” and “to review the current ecological management objectives, management strategies and performance indicators”.

However, operational ecological performance indicators and mitigating strategies have not yet been established for any pelagic fishery in Australia, and there is no agreed scientific framework for establishing these tools.

In recognition of -
1) the high profile of the SA pilchard fishery (as Australia’s largest pelagic fishery);
2) the important ecological role of pilchards in the Flinders Current Ecosystem;
3) the high economic value and conservation significance of the region’s marine predators;
4) and the sophisticated (single-species) stock assessment procedures and management arrangements that have been established,
members of the South Australian pilchard fishery have identified the need to establish “world’s best practices” for managing the potential ecological impacts of the fishery. In response to this need, fishers have invested $620K to assess the role of pilchards in the Flinders Current Ecosystem and to begin to develop ecological performance indicators and reference points for their fishery.

Currently, there is no scientific framework to assess whether the management arrangements that have been established for the SA Pilchard Fishery are sufficiently conservative to ensure that fishery is managed according to the principles of ESD (i.e. that fishing does not significantly affect the status of other components of the ecosystem, Fletcher et al. 2002).

In recognition of the large data sets and extended timeframes that are needed to establish and assess ecological performance indicators and reference points for pelagic fisheries, members of the South Australian pilchard fishery have also agreed to invest a further $310K (cash) to support the additional ecological research that is outlined in this proposal.

This project addresses the pressing need to develop a scientific framework for establishing ecological performance indicators and reference points for pelagic fisheries. The focus on the SA pilchard fishery is necessary, as such a large and complex undertaking could only be contemplated in large and valuable fishery that has sophisticated stock assessment procedures and management arrangements in place, and can thus afford to allocate significant resources to support the establishment of an ecosystem-based management system.

This project is needed to refine the management plan for Australia’s largest fishery to include ecological perfomance indicators and reference points and to ensure that research and management systems for the fishery correspond with, or exceed, world’s best practice by incorporating scientifically-based approaches for assessing and, if necessary, mitigating, the fishery's potential trophic impacts.

Projects such as this are needed to maintain Australia’s position as the world leader in the ecosystem-based management of fisheries.

Objectives

1. To identify species of key marine predators that consume significant quantities of sardines and could potentially be used to assess the need for ecological and/or spatial allocations in the SA pilchard fishery.
2. To identify population parameters for these key marine predators, such as measures of foraging and/or reproductive success, that are likely to be affected by changes in the distribution and abundance of sardines, and which could potentially act as ecological performance indicators for the fishery.
3. To examine the spatial and temporal scales at which these performance indicators vary in order to develop reference points that could be used to assess the need (if any) to establish ecological allocations in the fishery.
4. To use the results of this study to revise the managment plan and establish cost effective systems for ongoing monitoring and assessment of the ecological effects of the SA sardine fishery.

Final report

ISBN: 978-1-921563-38-6
Author: Tim Ward

Aquafin CRC - SBT Aquaculture Subprogram: nutritional profiles of baitfish 3: effects of harvest and post-harvest processes on quality of local baitfish for feeding SBT

Project number: 2004-211
Project Status:
Completed
Budget expenditure: $305,109.00
Principal Investigator: John Carragher
Organisation: SARDI Food Safety and Innovation
Project start/end date: 30 May 2005 - 1 Oct 2007
Contact:
FRDC

Need

Commercial in confidence. To know more about this project please contact FRDC.

Objectives

Commercial in confidence
View Filter

Species