43 results
Environment
PROJECT NUMBER • 2003-052
PROJECT STATUS:
COMPLETED

Spatial scales of exploitation among populations of demersal scalefish: implications for wetline management

West Australian dhufish is endemic to shelf waters of south-western Western Australia (WA). In contrast, snapper (known as "pink snapper" in WA) has a continuous distribution around the southern coastline of mainland Australia and in New Zealand. Dhufish and snapper are the two most important...
ORGANISATION:
Department of Primary Industries and Regional Development (DPIRD) WA
TAGS
Stock Assessment
SPECIES
Snapper
Environment
Environment

Enhancing the availability of pearl oysters for pearl cultivation in WA

Project number: 1985-058
Project Status:
Completed
Budget expenditure: $0.00
Organisation: Department of Primary Industries and Regional Development (DPIRD) WA
Project start/end date: 28 Dec 1987 - 31 Dec 1987
:
TAGS
Reproduction
Husbandry
Biomass
Aquaculture

Objectives

1. Husbandry techniques for nursery & ongrowing culture of hatchery-produced spat for pearl cultivation.
2. Build, evaluate on/offshore equip. Monitor environmental & biological conditions predisposing mortality on transfer to farms.
3. Develop husbandry protocol to prevent & contain mortality outbreak

Final report

Author: Robert A Rose
Final Report • 2017-09-29 • 14.16 MB
1985-058-DLD.pdf

Summary

The Western Australian Research Laboratories began investigating the feasibility of artificially propagating the silverlip or goldlip pearl oyster, Pinctada maxima, in 1982 and culminated its study by operating a pilot-scale, seasonal hatchery at the Broome Jetty, Broome, Western Australia from 1986 to 1989. This manual describes the hatchery facilities and husbandry techniques developed during this period for the spawning and culture of the larvae and newly settled spat.

Feasibility studies on the artificial propagation of pearl oyster seed

Project number: 1982-025
Project Status:
Completed
Budget expenditure: $0.00
Organisation: Department of Primary Industries and Regional Development (DPIRD) WA
Project start/end date: 28 Dec 1985 - 31 Dec 1985
:
TAGS
Reproduction
Husbandry
Fisheries Management
Biomass
Aquaculture

Objectives

1. Examine feasibility of artificially propagating the tropical pearl oyster, Pinctada maxima, by transferring existing hatchery techniques used in production of mollusc seed of temperate species such as edible oysters and scallops

Final report

Author: Robert A Rose
Final Report • 14.15 MB
1982-025-DLD.pdf

Summary

The Western Australian Research Laboratories began investigating the feasibility of artificially propagating the silverlip or goldlip pearl oyster, Pinctada maxima, (Jameson) in 1982 and culminated its study by operating a pilot ­scale, seasonal hatchery at the Broome Jetty, Broome, Western Australia from 1986 to 1989. This manual describes the hatchery facilities and husbandry techniques developed during this period for the spawning and culture of the larvae and newly settled spat.
Final Report • 14.15 MB
1982-025-DLD.pdf
Environment
Environment
PROJECT NUMBER • 1995-041
PROJECT STATUS:
COMPLETED

Growth of pearl oysters in the southern and northern areas of the pearl oyster fishery and examination of environmental influences on recruitment to the pearl oyster stock

The pearling industry is Australia’s most valuable aquaculture industry, generating approximately $187 million in 1997 (source: ABARE 1997). The oysters used to culture pearls are derived almost entirely from wild stock shell, rather than hatchery produced stock as occurs in other major...
ORGANISATION:
Department of Primary Industries and Regional Development (DPIRD) WA
TAGS
Stock Assessment
Industry
PROJECT NUMBER • 1987-082
PROJECT STATUS:
COMPLETED

Research and development of hatchery and nursery culture for the pearl oyster, Pinctada maxima

The Western Australian Pearling Industry is totally reliant on quotas of wild stock silver- or goldlip pearl oysters, Pinctada maxima. Any sustainable expansion of the Industry is unlikely to occur unless hatchery-propagated oysters become available as an alternative source to wild stock....
ORGANISATION:
Department of Primary Industries and Regional Development (DPIRD) WA
TAGS
Reproduction
Environment
Environment
PROJECT NUMBER • 1993-091
PROJECT STATUS:
COMPLETED

Fishery independent study of the spawning stock of the western rock lobster

The fishery for western lobster (Panulirus cygnus) has supported an annual catch of about 10 500 tonnes per annum over the last twenty years and is worth between $200-300 million per annum. The fishery has been experiencing increasing exploitation rates over time and estimates in the...
ORGANISATION:
Department of Primary Industries and Regional Development (DPIRD) WA
TAGS
Stock Assessment
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