KEEPING NATIVE FISH IN AUSTRALIA скачать в хорошем качестве

KEEPING NATIVE FISH IN AUSTRALIA

NATIVE AUSTRALIAN AQUATICS Many native fish species within the Murray-Darling Basin have declined dramatically in distribution and abundance. Declines in the population of fish species often occur suddenly. There is potential for the extinction of some species in the future. There is a need to take urgent action to reverse this trend of endangerment, for both individual species and fish communities as a whole. Research undertaken through the Native Fish Strategy has focused on identifying critical habitat for native species, and threats to the sustainability of their populations, so that we can take action to recover them. Areas of high conservation value have been identified with this work informing environmental water plans and other regional conservation activities. Here are some examples and informative videos on our native fish species: Forecasting of future fish population trends and the implementation of actions to reverse trends towards endangerment is an area for ongoing work. While it is important that specific legislative requirements are provided to manage species under threat, it is also important to recognise that appropriate management arrangements for all fish need to be implemented. Further, it is easier and more economical to maintain healthy populations than it is to restore depleted populations. For its land-size, Australia has a low diversity of native freshwater fish with only 281 described species.[1] This is largely because Australia is a very dry continent with sporadic rainfall and large areas of desert. There is a higher diversity of salt water fish. The most common freshwater fish are: Murray cod Australian bass Other species include: Australian grayling Australian smelt Climbing galaxias Common galaxias Eastern freshwater cod Eel-tailed catfish Estuary perch Flathead galaxias Golden perch Halfbeak/Garfish Jardini Inanga Macquarie perch Mary River cod Mountain galaxias Queensland lungfish Rainbowfish Retropinnidae River blackfish Saratoga Salamanderfish Short-finned eel Sleepy cod Trout cod Two-spined blackfish Western carp gudgeon