26
results
Environment
PROJECT NUMBER • 1995-020
PROJECT STATUS:
COMPLETED

Mortality, growth and movements of the western rock lobster, Panulirus cygnus

The very high levels of exploitation in the western rock lobster fishery have resulted in the introduction of regional or zone-specific management arrangements in recent years. This is a permanent departure from an holistic approach to the fishery’s regulation. A detailed knowledge of...
ORGANISATION:
Department of Primary Industries and Regional Development (DPIRD) WA
Environment
Environment
Environment
PROJECT NUMBER • 2000-135
PROJECT STATUS:
COMPLETED

Regrowth of pilchard (Sardinops sagax) stocks off southern WA following the mass mortality event of 1998/1999

This project produced time series of estimates of spawning biomass for pilchards in four purse seine management zones in Western Australia, three on the south coast and one on the west coast. The pilchard stocks in Western Australia have recovered strongly since the 1998/99 mass mortality. This...
ORGANISATION:
Department of Primary Industries and Regional Development (DPIRD) WA
SPECIES
Environment
Environment
PROJECT NUMBER • 1998-153
PROJECT STATUS:
COMPLETED

Mother-of-pearl (Pinctada maxima) shell: stock evaluation for management and future harvesting in Western Australia

The West Australian Pearling industry is one of Australia’s most valuable aquaculture industries, currently generating around $120 - $160 million annually. The majority of pearl shell used to culture pearls come from the pearling beds in the inshore waters near Broome. The fishery for...
ORGANISATION:
Department of Primary Industries and Regional Development (DPIRD) WA
Industry
PROJECT NUMBER • 1987-081
PROJECT STATUS:
COMPLETED

Developing on-growing techniques and disease prevention husbandry of pearl oysters in WA

Infection by marine Vlbrlo bacteria is still considered to be the major opportunistic cause of mass mortalities of pearl oysters (Pinctada maxima} on farm lease sites in the north west of Western Australia. Vibriosis of P. maxima was found to occur following some form of stressful husbandry...
ORGANISATION:
Department of Primary Industries and Regional Development (DPIRD) WA
Industry
PROJECT NUMBER • 2000-138
PROJECT STATUS:
COMPLETED

Minimising the cost of future stock monitoring, and assessment of the potential for increased yields from the oceanic snapper, Pagrus auratus, stock off Shark Bay

The investment in this project has resulted in a substantially more extensive set of age composition data than would have otherwise been possible. This in turn has underpinned stock assessment modeling that has provided the basis for determining that the commercial fishery for snapper in Shark...
ORGANISATION:
Department of Primary Industries and Regional Development (DPIRD) WA
SPECIES
Environment
PROJECT NUMBER • 2003-027
PROJECT STATUS:
COMPLETED

Evaluating the recreational marron fishery against environmental change and human interactions

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
SPECIES
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