Plenty of crayfish in the lakes and creeks on the Sunshine Coast, but you have to know how to catch them, have licence, use legal tackle, and follow the fishing regulations.
The greatest diversity of crayfish species is found in southeastern North America, with over 330 species in nine genera, all in the family Cambaridae. A further genus of astacid crayfish is found in the Pacific Northwest and the headwaters of some rivers east of the Continental Divide. Many crayfish are also found in lowland areas where the water is abundant in calcium, and oxygen rises from underground springs.
“trap crayfish … with any number or size of traps for personal consumption. You must release all fin fish caught in your trap. To help sustain crayfish populations, you should release any crayfish that are less than 9 cm in total length as well as those bearing eggs or young” REGIONAL DAILY CATCH QUOTAS: Crayfish: 25 ; for personal use.
Crayfish – also called crawfish or crawdads – are freshwater crustaceans resembling small lobsters, to which they are related; taxonomically, they are members of the superfamilies Astacoidea and Parastacoidea.
They breathe through feather-like gills and are found in bodies of water that do not freeze to the bottom; they are also mostly found in brooks and streams where there is fresh water running, and which have shelter against predators. Most crayfish cannot tolerate polluted water, although some species such as the invasive Procambarus clarkii are more hardy. Crayfish feed on living and dead animals and plants.
Clawed lobsters and crayfish are very similar. They have the same body structure: the same number of legs, the same number of antennae, a long tail, two claws, and a hard outer shell. Both also have two compound eyes. In fact, crayfish look more like clawed lobsters than do spiny lobsters. Medium hard or hard water with a slightly alkaline pH, 7.5 – 8.5, is best growing conditions.
And here are the pictures why we catch these for food.
Crayfish are a sign of healthy fresh, and soft water, they can not tolerate pollution. Like the songbirds in a mine. Enjoy them with respect.