From the information in B2, there is, for the following reasons, clearly a need to develop a recreational inland fishery in south-western Australia utilising the euryhaline black bream.
1. To provide, for local residents and tourists in rural areas, access to an outstanding angling and food fish species that occurs naturally in Western Australia and which is both hardy and adapted to living in a wide range of salinities and temperatures.
2. To increase for rural areas, which, during recent years have suffered economic decline through land degradation and salinisation, the potential for tourism.
3. To reduce the fishing pressure on natural populations of black bream, the abundance of which in some estuaries has declined precipitously during the last 20 years, presumably through overfishing (FRDC 93/082).
4. To determine whether the very different growth rates recorded for geographically isolated natural populations of black bream are due to genetic differences or differences in the environments in which they live. Such data are important for ascertaining whether it is necessary to select carefully the populations used as broodstock.
5. To explore the possibility that inland water bodies could be used for producing black bream economically on a limited commercial scale.
6. To provide an angling species in inland saline water bodies of south-western Australia which occurs naturally in the region.