Jim,
Riddle me this batman. What chance have Mary River cod got of surviving in the Brisbane River when the Brisbane River cod could not? Add another couple of migration barriers since the BRC carked it, add more catchment degredation, add increased water demands, add more introduced pest fish that are a chance of pretation upon cods eggs/fry/fingerlings (e.g. banded grunter, spanled perch, tilpia, lungfish), at the end of the day I'd like to think we're going to win, but realistically I think we're peeing into the wind with cod. But we arent going to stop trying just yet.
MRC breed in Big W if the numbers were available?
A- the numbers aren't available & are unlikely to ever be. (damn shame)
B- very little chance of it in Big W due to zero suitable nesting sites. (SEQWCorp wont allow artificial nesting sites to be put in the lake) Somerset possibly but the fluctuating water levels & turbid water reduce the odds.
However I'd like to think they can/will/do breed there. I've wasted alot of time, money & effort if they cant/wont/arent.
Barra,,,, exotic to the Brisbane River? I'm not convinced. Even if you're correct they're no more exotic to the "Brisbane River" than the "Mary River" cod.
Barra breeding in the brisbane river if they escape. Not possible according to QFS so that's no issue.
We're a stocking group, primarily for the purpose of creating, managing & developing recreational fisheries. As I stated earlier, conservation is a luxury, not a priority. We try to give it as much consideration as we can, nobody else (including govt bodies) does any on the ground work. If we were fully conservation driven we'd be stocking purple spotted gudgeons etc & killing every bloody bass we could find. While personally sympathetic to such issues, I can't bloody well do everything Jim.
We're a stocking group, not a government agency who can undo a couple of centuries of catchment abuse. We dont have the money, nor the resources to remotely be able to undertake what you describe. I'd like to refer you to the several landcare groups for the catchment (which I've done some work with in the past). I wont sit & cop the wrap for farmer brown & cos poor farming practices.
Were tackling the issues we can when possible;
-Maintaining the current fishery in the face of restricted access & increased angler pressure
-Reduce noxious & pest fish that threaten the recreation fishery
-Develope the recreational fishery
-Promote ethical & sustainable angling practices
-Promote & participate in conservation
Jim I'll ask your oppinion on something. Do you want to see all stocking for recreational fishing stopped within the catchment? What would you have us do about noxious & pest fish species?
Fitzy..