The history of BPLV in Australia is one in which mass mortalities have occurred repeatedly among cultured larvae almost completely without warning. There is no published data on where the virus comes from (i.e. its source or origin), or, in the case of stock being transferred interstate, the...
Lipids and in particular polyunsaturated fatty acids (PUFA) are important for a number of physiological functions in animals. PUFA are also major components of cellular membranes. Many marine animals cannot synthesise "essential" PUFA de novo and therefore serious deficiency signs such...
This is a report on the second stage of a two part program investigating hatchery production, farming and seeding of the commercial scallop, Pecten fumatus. A total of more than four million scallop spat were produced for farming trials and over 250 000 scallops ranging in size from 20-60 mm were...
ORGANISATION:
Department of Primary Industries and Regional Development
The standard method for growing the early stages of juvenile Pacific oysters is to hold them in systems called upwellers in land-based nurseries. Seawater is pumped through to provide the oysters with food particles. Growth rates of oysters cultured using this method were highly variable at Pipe...
Triploids (3n) are organisms with three sets of chromosomes, while the normal diploid (2n) organisms have only two sets. Over the past two decades, triploids have been studied in more than 20 species of molluscs. The main interests of those studies have primarily focused on their sterility and...
A comprehensive health survey of pearl oysters Pinctada maxima was undertaken across northern Australian marine waters in a collaborative project between fisheries organisations and pearl producers in Northern Territory (NT), Queensland (Qld) and Western Australia (WA). The majority of animals...
This report describes the results of an ex-post benefit cost analysis of the FRDC funded project 'Enhancement of yabby production from Western Australian farm dams' (Project No. 1994-075). The project was carried out by the Western Australian Marine Research Laboratories.
The main findings of the...
ORGANISATION:
Department of Primary Industries and Regional Development (DPIRD) WA
Farmers receive higher prices per kilo for large yabbies. Yabby farmers have reported that the majority of yabbies trapped from farm dams are below market size (< 30 g) and therefore of no economic value. In addition, farmers also report that while dams produce large yabbies when...
ORGANISATION:
Department of Primary Industries and Regional Development (DPIRD) WA