Most marine and freshwater fishes depend on plankton for food during a period shortly after birth until they are large enough to switch to other prey. At the Inland Fisheries Research Station, Narrandera (NIFRS), native fish are spawned and the larvae transferred to rearing ponds for approximately...
Since the spread of common carp into South Australia in the early 1970's, they have remained abundant in the River Murray and the lower lakes. With the continued high catch rates, there has been concern as to the effects carp may have on the environment and on native fish. This impact will be...