Brown trout have established self sustaining populations in most of the
State's rivers, lakes and estuaries. It is the wild brown trout
fishery upon which Tasmania's angling reputation has been built.
Brown trout are fished for with equal success by bait fishing, lure
casting, trolling and fly-fishing and are renowned as a fish that test
the skills of all anglers.
Rainbow trout (Oncorhynchus
while not as common as brown trout, can also be found in many lakes and
some rivers, and provide the basis for farm dams and other stocked
fisheries. Rainbow trout are often voracious in their attack of baits,
lures and flies and are well known for their spectacular fighting
Brook trout (Salvelinus fontinalis)
Brook trout are found in a several select lakes and provide extra
variety in the Tasmanian fishing experience and represent a challenging
but sought after quarry.
Atlantic salmon (Salmo salar)
Atlantic salmon were the first
salmonid species to be introduced to Tasmania, but they have failed to
establish self-sustaining populations. Trophy Atlantic salmon are
stocked into several of Tasmania's lakes
Carp were first discovered in North West Tasmania in 1975 and again in
1980.These populations were subsequently eradicated by poisoning. Carp
were again discovered in Tasmanian waters in 1995 this time in lakes
Crescent and Sorell. They have not been found in any other Tasmanian
waters since this latest discovery. Carp are currently managed by the
IFS to contain them to these two waters, and ultimately eradicate their
population in Tasmania.
All species of mainland yabbies (Cherax.spp) are listed as controlled
fish. The only species found in Tasmania is Cherax destructor, which was
first released in Tasmania’s midlands, and has since been transported to
farm dams and waterways around the State. Yabbies have the potential to
out-compete native crayfish and, due to their burrowing habits, have
been blamed for dam failures.
First discovered to be in Tasmania in 1990, there are currently several
self sustaining populations in the upper reaches of the Tamar estuary.
The largest population of Gambusia can be found in the Tamar Island
Wetland Reserve Conservation Area where there is unrestricted access to
the main estuary. Gambusia are an annual species with enormous
reproductive capacity. An average female is able to give birth to up to
450 live young over the summer breeding season. Gambusia is a threat to
Tasmania’s native fish and frogs because of its superior competitive
abilities and its extremely high tolerance to a wide range of
Goldfish show considerable colour variation in captivity, but in the
wild tend to revert to their natural colour of olive green to golden
bronze. Most Tasmanian populations are a result of releases from
aquariums and are locally abundant in farm dams and some streams. They
are believed to compete with native fish and have the potential to
spread fish diseases and parasites.
Redfin perch were introduced soon after trout in the 1860’s. Over the
past 30 years, redfin have spread to some of Tasmania's trout waters and
into areas of high conservation significance. Redfin have been directly
linked to declining trout fisheries and native fish distributions, and
are capable of forming large unmanageable populations.
Tench were introduced into Tasmania from Europe and were well
established by the 1880’s. They are usually dark olive green in colour
with orange red eyes. They are now widespread in Tasmania. Tench are
believed to directly compete with trout and native fish for food.
from the Tasmanian Inland Recreational Fishing Code