ollster wrote:Feral lettuce?! Well now I've heard everything.
geoskid wrote:nothing but the best of several brands will do :)
flyfisher wrote:Yep, lets get rid of all the ferals, cats, dogs, pigs, goats, horses,chooks,sheep,etc.
Probably willows would be good and radiata pines,tulips, poppies,lettuce, pumpkin,cabbage etc etc etc
ff
geoskid wrote:nothing but the best of several brands will do :)
Macca81 wrote:trout taste nice tho... and bring a number of people into the state for the sole reason of catching them... they do have positives as well as negatives...
Tony wrote:..................................
And don't forget that trout are feral too.
BarryJ wrote:Tony wrote:..................................
And don't forget that trout are feral too.
From Wikipedia: A feral organism is one that has escaped from domestication and returned, partly or wholly, to a wild state.
To the best of my knowledge, the trout that were released in Tasmania weren't domesticated and therefore they aren't feral. Definitely "introduced" though.
geoskid wrote:nothing but the best of several brands will do :)
Impacts on Native Fish
As with Rainbow trout, Brown trout has had a serious impact on the distribution and abundance of south-east Australia’s native galaxiids, such as Mountain galaxias and Barred galaxias. Brown trout is suspected of having deleterious impacts on Trout cod and Macquarie perch and a number of other threatened native species. Trout species are also thought to impact on a number of threatened frogs, such as the Spotted tree frog (Litoria spenceri).
Trout have been implicated in the decline of several native fish species, notably Galaxias fuscus and Galaxias olidus as well as the spotted tree frog Litoria spenceri. In Tasmania, trout are now virtually the only species found in many waters and freshwater fisheries management seems to be focused entirely upon the management of trout.
Trout can have a negative impact on some native fish, either directly through predation or indirectly, by competing for food and habitat.
Only a few waters within Tasmania remain trout free, and the Service is committed to maintaining this status for the conservation of native species. It is a serious offence, therefore, to transfer any fish from one water body to another, even to a different section of the same stream.
Invasive freshwater fish species in Australia include carp, brown trout, rainbow trout, redfin perch, mosquitofish (Gambusia spp), weather loach, and spotted tilapia to name a few. Some introduced freshwater fish species have had devastating impacts on Australia's endemic freshwater fish species and other native aquatic life. For example in much of south eastern Australia's freshwater systems introduced carp (often incorrectly called "European" carp) dominate the lowland reaches, while introduced trout species almost completely dominate the upland reaches. While the damaging impact of carp is well recognised, little in the way of control measures have been employed to control their spread. Their ability to colonise almost any body of water, even those previously considered to be beyond their physical tolerances, is now well established.
ILUVSWTAS wrote:I think the topic should have just been about feral animals, cats are just the obvious ones to pick on as they cause the most damage to the natives.
ILUVSWTAS wrote:Well I know you have an interst in the matter (hence your usesname) FF.
But the links put up previously suggest the introduced trout ARE having an impact on alot of the native fresh water species in Tasmania.
As someone said, Fisheries have some pretty harsh fines for anyone introducing species into a waterway that is free of the brown and rainbow trout.
Would they do that if there was no impact on the Galaxies species? Or the many shrimp species found in our fresh water systems??
ILUVSWTAS wrote:As your a regular companion of mine and would be feeding us some lovely fresh fish, I see no problem here....
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