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Reproduction in fishes is regulated by external environmental factors that trigger internal mechanisms. The final event of the reproductive cycle, the release of eggs and sperm resulting in spawning, can be controlled by either placing the fish in an appropriate environment or by changing the fish’s internal regulating factors with injected hormones or . . . → Read More: Control Of Reproduction In Spawning Fish General Information: The catfish is native to the Murray-Darling system and prefers sluggish or still waters. Due to habitat destruction and overfish it is considered to be endangered in South Australia and therefore is a protected species. Catfish are a relatively hardy fish and can withstand extreme conditions for short periods of time. They . . . → Read More: Catfish- Tandanus tandanus General Information: Callop, also known as Golden perch or Yellowbelly occur naturally mainly in the Murray- Darling system, Lake Eyre drainage system and some coastal streams of southern Queensland and northern New South Wales. Their prefered habitat is within the warm sluggish waters within these regions. The largest Callop caught on record weighed in . . . → Read More: Callop- Macquaria ambigua General Information: The distribution of Murray cod occurs within the Murray-Darling region ranging from southeastern Queensland, throughout Victoria a New South Wales and also South Australia. The Murray cod is the largest freshwater fish in Australia. The largest fish ever to be caught in the wild weighed in at 113.5kg. Murray cod prefer to . . . → Read More: Murray Cod- Maccullochella peeli General Information: Silver perch occur naturally in the Murray- Darling systems with other populations also found within south-eastern Queensland. They prefer to inhabit open waters rather than heavily snagged areas. Abundance of Silver perch has declined over the past few decades due to habitat destruction and is now a protected fish in South Australia. . . . → Read More: Silver Perch-Bidyanus bidyanus Putting the pressure on cows to perform well, will ensure a highly productive and economically efficient beef herd. Performance in your beef herd is important, make sure that the cows in your herd are there for a good reason. Although the herd bull has a greater impact on the entire herd, the individual cow . . . → Read More: Ensure Beef Cows earn their keep |
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