76 results
Industry
PROJECT NUMBER • 2010-753
PROJECT STATUS:
COMPLETED

Seafood CRC: improving hatchery production of Yellowtail Kingfish larvae and fingerlings

Clean Seas Tuna is the largest commercial hatchery producer of Yellowtail Kingfish fingerlings in Australia. Following three years of research (2007-2010) into larval rearing issues, the company still experienced variability in results between the two hatcheries, Port Augusta and Arno Bay, between...
ORGANISATION:
University of Tasmania (UTAS)
TAGS
Reproduction
Physiology
Husbandry
Aquaculture
Animal Health
SPECIES
Yellowtail Kingfish
Blank
PROJECT NUMBER • 2010-761
PROJECT STATUS:
COMPLETED

SCRC: SCRC RTG: Laboratory Training, USA (Judith Fernandez-Piquer)

This project was a CRC travel grant and involved a series of training activities for improved knowledge of the Vibrio monitoring and risk management in oysters which were conducted in Ocean Springs-Biloxi, Mississippi and Dauphin Island, Alabama, USA in November 2010. The outcomes of this trip were...
ORGANISATION:
University of Tasmania (UTAS)
TAGS
Training
Genomics
Fisheries Management
Disease
Animal Health
Environment
PROJECT NUMBER • 2013-026
PROJECT STATUS:
COMPLETED

Can commercial harvest of long-spined sea urchins reduce the impact of urchin grazing on abalone and lobster fisheries?

At low-levels of exploitation, commercial harvesting of long-spined sea urchins was found to prevent increase in urchin density. Adjacent unfished locations experienced an increase in both urchin density and grazed area over the 2014 – 2016 study period. Research sampling of populations...
ORGANISATION:
University of Tasmania (UTAS)
TAGS
Rac Tas
Harvest Strategy
Fishing Effort
SPECIES
Blacklip Abalone
Sea Urchins

9th International Conference on Harmful Algal Blooms, 7-11 February 2000, Hobart

Project number: 1998-343
Project Status:
Completed
Budget expenditure: $25,000.00
Principal Investigator: Gustaaf Hallegraeff
Organisation: University of Tasmania (UTAS)
Project start/end date: 28 Jun 1998 - 30 Dec 2001
Contact:
FRDC
TAGS
Toxin
Conference
Aquaculture

Need

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.

Objectives

1. To host a successful international conference dealing with: (1) Ecology and oceanography of harmful algae events
(2) Taxonomy of the causative organisms
(3) Chemistry of the toxins involved
(4) Management of toxic and harmful events
and (5) Pharmacological and epidemiological aspects. The conference will comprise: Keynote lectures, Oral and poster presentations, Round table discussions
Workshops
as well as a Social Programme including excursions to key Tasmanian aquaculture operations. A conference web site on the internet will also be created.

Final report

ISBN: 0 85901 965 9
Author: Gustaaf Hallegraeff
Final Report • 2001-10-05 • 3.47 MB
1998-343-DLD.pdf

Summary

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

Presentation • 1.99 MB
Conference Abstracts.pdf

Summary

Abstracts of oral communications from the 9th International Conference on Harmful Algal Blooms held in Tasmania 7-11 February 2000.

 

Proceedings • 32.37 MB
Harmful Algal Blooms - Conference Proceedings.pdf

Summary

The 9th International Conference on Harmful Algal Blooms (HAB2000) was held in Hobart (Tasmania, Australia) from 7 to 11 February 2000. The conference venue was the Wrest Point Convention Centre located on the magnificent foreshores of the Derwent River estuary. HAB2000 brought together a record number of 526 participants (473 full and 43 day registrations, including 87 students) from 47 countries. This was the first time this prestigious conference series was scheduled in the Southern Hemisphere, but this appeared not to have deterred strong participation from Europe (122), USA (77) and South East Asia (84).

A total of 130 talks and 308 posters were presented, and where parallel sessions were scheduled the plenary introductory session featured reviews covering the full range of topics. A total of 472 abstracts, organised as a searchable database, were made available via internet during the months preceding the meeting and for registered conference participants this complete conference abstract record is also included in CD-ROM format with this Proceedings volume. The scientific programme of HAB2000 focused on new algal bloom species and new toxic phenomena, new regional bloom events, ecophysiology and bloom dynamics, cysts and sediments, eutrophication, novel toxins, ecophysiology of toxin production, exotoxins, foodchain effects, population genetics, molecular probes, immunological methods, role of bacteria, and impacts on finfish and shellfish aquaculture operations. Being held in Australia, this was the first conference in this series which prominently featured problems caused by freshwater cyanobacterial blooms, including impacts of cyanotoxins on human health and aquatic foodwebs, and aspects of drinking water treatment. A special session on international algal bloom programmes and future conferences, as well as a dedicated session on algal bloom control and management were also scheduled. The opening address was presented by Dr Meryl Williams (pp.1-2), director-general of the International Commission of Living Aquatic Resources Management (ICLARM), while the closing address was given by Prof. Max Taylor (pp.3-7), to whose lifetime pioneering achievements this conference was dedicated.

Industry
PROJECT NUMBER • 1996-352
PROJECT STATUS:
COMPLETED

Aspects of feeding, maturation and osmoregulation in cultured juvenile greenback flounder

Skeletal deformities have been observed in cultured flounder in recent years. At times, high percentages of fish are affected, potentially influencing growth and marketability, and affecting the reliability of the experimental data collected. Many growers taking fish for pilot scale grow-out trials...
ORGANISATION:
University of Tasmania (UTAS)
TAGS
Physiology
Oceanography
Nutrition
Disease
Aquaculture
Industry
Industry
PROJECT NUMBER • 2011-735
PROJECT STATUS:
COMPLETED

Seafood CRC: an evaluation of the options for expansion of salmonid aquaculture in Tasmanian waters

The Tasmanian Salmonid Growers Association (TSGA) strategic plan to 2030 targets a 100% expansion to a $1 billion industry over the next 20 years. The challenge for the Tasmanian Atlantic salmon industry is for sustainable strategic growth. The strategic plan recognises that to achieve this industry...
ORGANISATION:
University of Tasmania (UTAS)
TAGS
Trade
Marketing
Market Opportunities
Consumer
SPECIES
Atlantic Salmon
Industry

Tactical Research Fund: A review of the ecological impacts of selected antibiotics and antifoulants currently used in the Tasmanian salmonid farming industry and development of a research programme to evaluate the environmental impact of selected treatments.

Project number: 2007-246
Project Status:
Completed
Budget expenditure: $52,560.00
Principal Investigator: Catriona Macleod
Organisation: University of Tasmania (UTAS)
Project start/end date: 1 Sep 2007 - 31 Dec 2008
Contact:
FRDC
TAGS
Sustainability
Fisheries Management
Environmental Impact
Ecosystem
Disease

Need

The Tasmanian salmonid industry has recently been faced with several significant production issues necessitating increased use of antibiotics and antifoulants. The effects of these chemicals on the local ecology and ecosystem function are currently poorly understood and without evidence to the contrary, it is difficult for the industry to refute the perception that such chemicals have a detrimental effect on the environment.

There is a large body of literature regarding the effects of antibiotics, however the information pertaining to aquaculture is limited. Improvements in husbandry and vaccine development have now all but eliminated the use of antibiotics in aquaculture overseas, consequently there have been few recent aquaculture specific studies, with even fewer studies on ecosystem effects, the available information largely focussing on environmental persistence and antibiotic resistance. However, there is quite a lot of information in the terrestrial livestock and medical areas on the comparative effects of various antibiotics as well as quite a substantial ecotoxicological literature. In contrast there is a substantial local literature on the environmental impacts of antifoulants and heavy metals. There is a need for a targeted review to establish environmental risk factors associated with current antibiotic and antifoulant usage and to develop an appropriate strategy to research and monitor ongoing impacts.

Some data on sediment residue levels for both antibiotics and antifoulants has been collected by the salmon industry in compliance with drug/chemical licensing permit conditions authorities and by the state government in response to concerns regarding antibiotic usage. So far this data has not been collated and has only been subjected to preliminary analysis; a comprehensive evaluation of this data would markedly improve our understanding of current impacts and help to determine what additional information may be required.

Objectives

1. Undertake a review of the international literature and current research to identify the existing state of knowledge regarding the environmental effects of antibiotics and antifoulants currently used or likely to be used in the Tasmanian salmonid farming industry.
2. Analyse local datasets on currently used antibiotics and antifoulants, collected in compliance with current licensing requirements, to determine what additional information is needed (if any) to appropriately evaluate the environmental impact of current management practices.
3. Develop an appropriate and cost effective research proposal to obtain the necessary information to evaluate the impact of current management strategies and design an appropriate ongoing monitoring programme.

Final report

ISBN: 978-1-86295-569-1
Author: Catriona Macleod
Final Report • 2010-06-30 • 1.34 MB
2007-246-DLD.pdf
Environment
PROJECT NUMBER • 2003-051
PROJECT STATUS:
COMPLETED

Developing tagging models and validating assumptions for estimating key fishery assessment parameters in rock lobster fisheries

Tagging is an important tool for estimating key fisheries parameters such as fishing mortality, natural mortality and growth. This project identified the need for future tagging projects to undertake preliminary studies to determine the impact of tagging on both growth and survival, and we developed...
ORGANISATION:
University of Tasmania (UTAS)
TAGS
Wild Catch
Tagging
Stock Assessment
Mortality
Fishing Effort
View Filter

Research

Category

Species

Organisation