A study of the retail sale and in-home consumption of seafood in Sydney
Given the many changes to the business environment and eating habits in Sydney since the National Fish Consumption Study, particularly this year, there is a need for up to date reliable information on the retail sale and in home consumption of seafood in Sydney to comprehend and overcome this reported downturn in seafood retail sales and for long term planning for the producers and marketers of seafood.
This information would also allow industry to make better use of underutilised seafood species which are currently not fetching high prices. With the growing number of Vietnamese and Korean fish shops in Sydney, some importing fresh seafood from Vietnam, and the growing interest in ethnic foods, import replacement with our underutilised species is of great importance.
Australia as a whole can benefit from the results of this research because Sydney is the major domestic market for seafood, wild caught or farm grown, in all states.
The Olympics in Sydney in the year 2000 places even greater importance on having reliable information for sound planning for future seafood needs. This study on the retail sector would complement an earlier study on the seafood demand from the catering sector undertaken by the applicant for the FRDC last year.
Final report
This study was initiated in response to industry requests for information on the retail sales levels and consumption of fish and seafood in Sydney (the major market for Australia's fishing and aquaculture produce) because of widespread concerns about declining sales levels.
The study was designed to provide recommendations on how to increase retail sales profitably and to repeat much of the 1991 National Seafood Consumption Study (NSCS); that is, to examine changes in fish/seafood consumption and retailers and consumers attitudes to fish and seafood since 1991. A similar study on consumption and consumer attitudes was initiated in Perth shortly after the Sydney study started.
This volume has the detailed findings of a survey of the sales and attitudes of 140 fishmongers, supermarket and fish and chips outlet operators and the discussion, recommendations and conclusions arising from all the consumer and trade studies. Volume two of the report has the findings from five focus group discussions with consumers, a total of 1142 interviews covering out of home consumption and 740 interviews on in home consumption and consumers attitudes.
Out of home fish and seafood consumption has grown appreciably in Sydney and Perth since the corresponding period in 1991 (19% and 37% per capita respectively) because of the increased frequency of eating out and the strong innovation in the various types of eateries and the foods and meals on offer.
In home per capita consumption however grew only by 8% in Sydney and fell by 27% in Perth. Total in and out of home consumption in Sydney increased by 13% while in Perth it did not change significantly since 1991. This study suggests that the main factors responsible for this outcome were the decreasing household size, growing competition from an increasing variety of convenience foods and meals and the strong growth in casual out of home eating.
The average Sydney retail sales per store has increased substantially in value since the 1991 NSCS but mostly because of inflation in fish prices. Most fishmongers and fish and chips outlets attempted to curb the rising fish prices and maintain sales volumes by cutting their profit margin and many did not recognise the drift of customers to other more convenient foods and out of home eating.
The supermarket chains recorded the strongest sales growth in fresh and frozen fish and seafood - and real growth in average weekly sales value - mostly because of the development of dedicated fresh fish counters in their stores since 1991; some of this growth came at the expense of the traditional fish retailers.
A notable finding from the out of home consumption study was that restaurants have lost market share to more casual midmarket eateries such as cafes, clubs and the better fish and chips outlets since 1991.
Project products
9th International Conference on Harmful Algal Blooms, 7-11 February 2000, Hobart
Starting in the mid 1980s, Australia has experienced an increased public
awareness of harmful algal blooms, especially their suspected involvement
in causing fish kills and feared public health risks following consumption
of contaminated seafood products and drinking water supplies. If not
adequately monitored and managed, the economic impacts on Australia's
developing aquaculture industry and on both domestic and export markets
could be devastating. An example of the first problem is the 1989 bloom
event by the golden-brown flagellate Heterosigma akashiwo in Big Glory
Bay, New Zealand, which killed NZ$ 12 million worth of cage-reared chinook
salmon. An example of the second problem is the 1993 New Zealand outbreak
of neurotoxic shellfish poisoning by the dinoflagellate Gymnodinium cf.
breve (NSP; 180 illnesses, no deaths) which led to export losses of NZ $
4.5 million in the first quarter of 1993 and a 25% decrease in domestic
shellfish demand . Similarly, positive test results are now available from
Australian shellfish products for paralytic shellfish poisons (NSW,
TAS,VIC,SA), diarrhetic shellfish poisons (TAS), amnesic shellfish poisons
(VIC) , neurotoxic shellfish poisons (VIC) and cyanobacterial peptide
toxins (WA). While algal biotoxins only in extreme cases lead to human
fatalities, it is the so-called "halo"-effect of bad publicity resulting
from a few human poisonings that can devastate aquaculture industries.
Compared to our neighbour New Zealand, which spends $3.2 M per year in
biotoxin monitoring efforts (most comes from the Ministry of Health, with
industry providing $750,000 per year via an industry levy), Australian
efforts in this area of quality assurance and environmental protection of
aquaculture operations are unsatisfactory.
Final report
The FRDC sponsored 9th International Conference on Harmful Algal Blooms held in Hobart, Tasmania, from 7-11 February 2000, was a resounding success. It was the largest conference on this topic (526 participants from 47 countries) ever held anywhere in the world. A total of 130 talks and 308 poster presentations were given. The conference broke important new ground by dedicating a special session to Algal Bloom Monitoring, Management & Mitigation. Special sessions were also dedicated to Impacts on Shellfish Aquaculture and Impacts on Finfish Aquaculture. Two FRDC representatives (Peter Lee and Alex Wells) attended, and as a special service to the Tasmanian finfish aquaculture industry US expert Dr Jack Rensel gave a keynote conference address, a special satellite seminar for fishfarmers and government staff, as well as met with 4 fish farming companies on site. US experts Prof. Sandra Shumway and Dr Monica Bricelj visited several shellfish aquaculture operations. A public forum on "Harmful Algal Blooms: Impacts on Health, Environment & Economy" was scheduled in association with the conference. The publication outputs from this meeting include a 518 pages Conference Proceedings Volume (to be published through the Intergovernmental Oceanographic Commission of UNESCO) and a special issue of the international journal Phycologia (vol. 40(3)) both to appear in 2001.
Keywords: Harmful Algal Blooms; Shellfish Biotoxins; Aquaculture Finfish Kills
Project products
Aquaculture genetics workshop
The 1995 review of world aquaculture resources by the Food and Agriculture Organisation identified the major constraints to future development of aquaculture as being: the availability of feed ingredients; disease and health management; environmental impacts; and genetic and diversity issues. There are two areas in which genetics is especially important in aquaculture development: 1) Appropriate broodstock selection and breeding programs for the genetic improvement of important production traits; 2) Genetic implications of the translocation of aquaculture stocks within and outside their natural range.
Genetic improvement: The power of selective breeding in increasing productivity and efficiency has been amply demonstrated in traditional agricultural species. Aquaculture species have hardly benefited from modern developments in animal breeding, despite their typically high reproductive capacity and therefore high potential for genetic improvement. The key issues which need to be addressed are the appropriate traits for improvement and their genetic parameters (heritability, correlations with other traits); optimal selection methods (mass selection, family selection, construction of selection indexes); avoidance of inbreeding; and the role of recombinant DNA technology (transgenesis, marker-assisted selection and cytogenetic manipulation).
Understanding the power of genetics is particulary important with aquaculture species where egg supply is a limiting factor. This applies to many fish species where the first generation bred in captivity often become the broodstock for the industry. Accidental initial selection of a slow growing strain (compounded by inbreeding), or starting with a small genetic base often leads to an uncompetitive industry.
Translocation: The issue of translocation is likely to become an increasingly important constraint upon aquaculture development. Although policy guidelines are currently being produced in Western Australia and other states, their application will be hampered by a lack of genetic knowledge on two fronts. Firstly, we know very little about the genetic population structure of most endemic potential aquaculture species. Secondly, what we do know comes almost entirely from studies of neutral genetic markers, and may bear no resemblance to the genetic structure of traits of ecological importance. The issues that need to be addressed are: laboratory and analytical techniques for measuring population genetic structure; relating population genetic structure to genetic variance in traits of ecological importance; the effects of breeding for stock enhancement on inbreeding and variance effective population sizes.
These issues of genetic improvement of breeding stock and genetic effects of translocation are two sides of the same coin, because the traits which we wish to improve through breeding are in most cases precisely those traits which determine the adaptedness of local populations to their environment. Both issues need to be addressed at this early stage in the development of the aquaculture industry in Australia.
Restocking of native fish stocks is also becoming increasingly important in Australia as the political power of recreational anglers and the value of their sport to local economies increases. Restocking programs should not be undertaken without an understanding of the genetic structure and variance of existing populations or the knowledge needed to ensure that the restocked fish do not alter this balance.
Final report
Aquaculture in Australia is a rapidly growing industry. More than 60 aquatic species including crustaceans, molluscs, finfish, crocodiles and microalgae are presently cultured in Australia, although less than ten species support around 80% of the total value of the industry. In 1995, a review of world aquaculture resources by the Food and Agriculture Organisation identified genetic and diversity issues as major constraints to the future development of aquaculture. There are two areas in which genetics is especially important in aquaculture development: (1) the genetic improvement of important production traits; and (2) genetic implications of the intentional movement (translocation) of organisms for aquaculture or restocking programs.
Genetic improvement of aquaculture species offers substantial opportunities for increased production efficiency, disease control, product quality and ultimately profitability for aquaculture industries. Most aquaculture industries in Australia are at an early stage of development and would benefit from the introduction of genetic improvement programs.
The first step in a genetic improvement program is to determine which traits should be improved (the breeding objective), and find measures for those traits (the selection criteria). Size at harvest is perceived by industry participants, managers and researchers as the trait that will most influence profitability for all major aquaculture species in Australia. Other traits of general importance are survival to harvest, disease resistance (especially in edible molluscs), meat yield and feed conversion efficiency. For some aquaculture species, such as trout, there are good estimates of the heritabilities and genetic correlations among these traits, and studies are beginning for a number of crustacean and mollusc species. In most cases, however, we still lack the basic information needed to define effective selection criteria for the traits we wish to improve.
Once the breeding objective and selection criteria have been determined, we need to consider the methods by which superior breeding stock will be selected. Mass selection, where breeding stock are chosen on the basis of individual performance, is most common in aquaculture species. This may lead to inbreeding, however, because individuals with superior performance will often be closely related. One method of overcoming this is by taking the performance of relatives into account when choosing breeding stock (family selection). The major research priority for genetic improvement across all aquaculture species in Australia is the development of genetic markers to enable accurate pedigree determination. This would allow the more widespread use of family data in selection decisions, without costly maintenance of separate family lines until individuals can be physically marked.
The major constraint upon the implementation of genetic improvement programs by aquaculture industries is lack of available funds and resources. Many aquaculture industries in Australia are small and immature, and uncertainties over production costs and market opportunities limit investment in long-term genetic improvement programs. Ensuring industry ownership of genetic improvement programs, and national coordination among researchers, are vital in all aquaculture industries. Government support may be necessary in the early stages of development, and the favourable benefit:cost ratio demonstrated, for example, by the Norwegian breeding program for salmonids, should encourage the targeted investment of public funds into genetic improvement programs for aquaculture species.
Project products
3rd International Rock Lobster Congress
The prevention of occupationally-related infections in western rock lobster fishermen
Husbandry of the blue swimmer crab in Aquaculture
1. Pilot trials under laboratory conditions have shown that blue swimmer crabs can be successfully cultured from egg to saleable product. Investigation and refinement of husbandry techniques are required, under conditions of commercial scale production, to remove uncertainty impeding development of an industry.
2. Research undertaken to date lays the foundation for the development of a successful new industry. The expansion of the industry requires the development of a sound scientific basis to husbandry techniques and ongoing research support. The key impediments identified are in the areas of nutrition, health and temperature/stocking rate interaction.
Final report
Visual development in the WA dhufish (Glaucosoma hebraicum)
This project will greatly assist the Fremantle Maritime Centre to establish the light regimes required for the WA dhufish larvae and will provide greatly needed support for the larval rearing portion of the project. The information provided should enable the FMC to avoid long term trial and error light regime experimentation and increase larval survival. The information obtained will also be of benefit to Murdoch University (FRDC Project 96/103 - Determination of biological parameters required for managing the fishery for Western Austration dhufish) to assist in identifying (currently unknown) areas which may act as nursery grounds for the WA dhufish larvae.