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Won’t anyone think of the Macquarie Perch?

By johnboy 14 August 2008 30

Building dams is usually a tricky thing. People get touchy about flooding a valley and wonder where all the cute little animals will go.

Detailed inspection finds all sorts of endangered species which would probably also be found in the next valleys over if anyone was building a dam in them.

So expanding the existing Cotter Dam must have seemed like a great idea. The valley’s already been flooded by our less civilised ancestors.

The ABC, however, reports that there’s a problem:

    The dam is home to the last known population of Macquarie perch in the ACT and one of the few remaining viable colonies in the country.

Apparently they won’t be happy in the larger dam, because they need the reed beds currently fringing it.

Big brains are looking for a solution.

UPDATE: Thanks to Miz for noticing that this looks a lot like a consultation process for the Perch.

What’s Your opinion?

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30 Responses to
Won’t anyone think of the Macquarie Perch?
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peterh 9:35 am 15 Aug 08

seriously, though, perhaps the ACT Government and ACTEWAGL should look at ways to increase our water containment through covered reservoirs. if we had water in large tank containment, fed by pumped in stormwater, the catchment potential would increase.

the purification plant would still be effective, but the amount that the murrumbidgee would receive would decrease.

and how much would that p*ss off the Murray darling people, not to mention the farmers downstream?

Headbonius 9:28 am 15 Aug 08

Touche, Peter, Touche.

peterh 9:25 am 15 Aug 08

Headbonius said :

Sorry for the triple post Peter, I left the “ed” off cock. Thought I better correct the posting before JB moderated me.

Ah headbonius,


when i have riotACT?

this is the most fun i have had in years.

Thumper 8:16 am 15 Aug 08

I caught a needlefish once, but that was in Ballina so I guess it’s rather irrelevant to the discussion…

Headbonius 7:09 am 15 Aug 08

Sorry for the triple post Peter, I left the “ed” off cock. Thought I better correct the posting before JB moderated me.

Headbonius 7:08 am 15 Aug 08

Peter, please ease off the medication too mate. I have never claimed to have cuaght a Tiger trout before. Like you I have caught plenty of Brown and rainbow trout and a smattering of brook trout. Please read postings before going off half cock.

Headbonius 7:05 am 15 Aug 08

Dear Peter@home and Ari – sorry about upsetting you with some of my more “Meathead” comments they were designed to get a rise and rise like a trout to a well presented fly you just did. Tiger trout were a suggestion because as you pointed out correctly Peter, they are sterile. They would no breed to the exclusion of other species in the system other than the natural predation they would undertake and they themselves would be subject to predation. They have been stocked in New Zealand with some success. So as a put and take fishery spcies they are perfect.

shauno 3:50 am 15 Aug 08

I’m all for opening up Cotter Dam for a dual use drinking water and fishing reservoir. It can easily be done and its perfectly safe. Its what happens in most of Europe’s waterways anyway and the water quality is fine. Hell they are advocating we reuse recycled waste water so a spot fishing isnt going to effect the water as much as that.

It would be great for Canberra to have a world class fishery so close to the town and it would be a real shame to have such a large body of water locked up.

peter@home 10:57 pm 14 Aug 08

Headbonius said :

Look it isn’t like people go scuba diving in the Cotter Reservoir to admire the fine McPerch is it?

Peterh, if the Governemnt decided to make this a fly-fishing/lure only, electric outboard only fishery they could create a great, fishery capable of generating immense income. Googone used to be like this until the loony greenies decided that trout were destroying the tadpoles of the frilled native frog and therefore should be eliminated. It is a time proven principle of conservation, if you make something worth something, people value it. Deb Foskey just doesn’t get it. Either does Andrew Barr’s good mate Bob Brown (Actually I don’t know if they are good mates – perhaps they are) No one values Macquarie Perch or even really gives a toss besides hairy armpitted, tree hugging fwits and even they don’t really care, it’s just another cause to get smelly over. So, make the place worth something, manage it properly and people will care because it means something to them. You haven’t died yet from drinking Googong water and I have fished in it a lot of times.


have you ever caught, in your years of fishing, a “hybrid tiger trout”? ever?

I have caught browns and rainbows, but never a hybrid tiger….


geez mate, not a proper post without the pros and cons of a fishery for an unavailable species…

well done. no, really, I hope they do set it up as a fishery for this kind of fish.

then I can see what one actually looks like. (especially as it is an american hybrid, not found in oz) of course, there may be a bit of argy bargy re bringing it into australia in the first place, bit like carp, really…

and here is the info from wikipedia…..

The tiger trout (Salmo trutta X Salvelinus fontinalis) is a sterile, intergeneric hybrid of the brown trout (Salmo trutta) and the brook trout (Salvelinus fontinalis). The name derives from the pronounced vermiculations, evoking the stripes of a tiger. It is a rare phenomenon in the wild, with the brook trout having 84 chromosomes and the brown trout 80.[1] Records show instances as far back as 1944.[2]

Artificially, tiger trout can be produced reliably enough to be grown by hatcheries. This is done by fertilizing brown trout eggs with brook trout milt, and heat shocking them, which causes creation of an extra set of chromosomes and increases survival from 5% to 85%.[3] Tiger trout have been reported to grow faster than natural species,[4] though this assessment is not universal,[5] and they have been widely stocked for sport fishing.

Thumper 9:16 pm 14 Aug 08

Everyone has heard of the venerable old Macquarie perch

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