Data on bioeroding sponge species that excavate shells of the pearl oyster, Pinctada maxima, was collected from the main fishing grounds in North Western Australia. Estimates on infestation rates across size/age classes of shell are provided from the main fishing grounds and over three consecutive...
ORGANISATION:
Department of Primary Industries and Regional Development (DPIRD) WA
The use of scientifically based hazard identification, risk analysis and risk management is fundamental to managing unwanted effects. Hazards, such as quarantine incursions, will continue to occur despite the use of risk assessment methodologies but the frequency and severity of their...
ORGANISATION:
Department of Primary Industries and Regional Development (DPIRD) WA
Many strategies have evolved among fishes to maximise spawning success. One of the most striking of these is aggregation spawning, in which individuals group together, often at predictable times and locations in order to reproduce (cf. a school, which refers to a group of non-spawning fish)....
ORGANISATION:
Department of Primary Industries and Regional Development (DPIRD) WA
The second stage of the operation of the ESD Subprogram was successful, but compared to the focus during the first subprogram period, mostly in a consolidation manner rather than from the generation of significant new tools. This was necessary because it takes time to adopt and integrate...
ORGANISATION:
Department of Primary Industries and Regional Development (DPIRD) WA
The capability to identify individual shark species from processed body parts is necessary for the WA Department of Fisheries to ensure the compliance of all WA fisheries with both existing protected species regulations and proposed new management measures for commercially important shark species....
ORGANISATION:
Department of Primary Industries and Regional Development (DPIRD) WA
This study has provided for the first time in Australia, an empirical comparison of different management models with a recreational marine finfish fishery. A TAC-based system was introduced for pink snapper in the inner gulfs of Shark Bay for the first time in 2003-2005, to explicitly manage...
ORGANISATION:
Department of Primary Industries and Regional Development (DPIRD) WA
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
The distribution of marron in the southwest of Australia has seen many changes since European settlement. Reconstructions of their range from historical records suggested that marron inhabited the waters between the Harvey River and Denmark River. Due to translocation, their range has expanded as...
ORGANISATION:
Department of Primary Industries and Regional Development (DPIRD) WA
A preliminary sensory evaluation study was conducted to confirm the presence of a taint issue. Prior to this the issue was reliant on purchaser feedback and was not verified independently. To examine the issue of flavour taint a series of barramundi samples were collected from Lake Argyle (purged...
ORGANISATION:
Department of Primary Industries and Regional Development (DPIRD) WA
Increases in efficiency due to modem electronic equipment, improved fishing vessels and knowledge about the grounds and lobster behaviour, have all led to western rock lobster fishers becoming more efficient at catching western rock lobsters in Western Australia. One of the outcomes of these...
ORGANISATION:
Department of Primary Industries and Regional Development (DPIRD) WA
A two day disease emergency response workshop was held at Geraldton, Western Australia, in October 2002. The objective of the exercise was to test the industry and government response to a disease emergency among non-maxima pearl farms at the Abrolhos Islands. The exercise was...
ORGANISATION:
Department of Primary Industries and Regional Development (DPIRD) WA
A National Seafood Emergency Plan was produced in 2001 and the individual States (apart from South Australia and Queensland) have not tested their capability to handle an emergency that could jeopardise the future of the seafood industry.
There is a commitment from Industry leaders throughout...
ORGANISATION:
Department of Primary Industries and Regional Development (DPIRD) WA