australian fish deaths

[wotnobivvy]

https://www.bbc.co.uk/news/av/world-australia-46812117/australia-fish-deaths-thousands-found-floating-in-new-south-wales

[Phone]

All,

 

Horrible regardless of the cause. Waiting for bobj to comment.

 

Phone

 

Edit: or for that matter any of those in OZ familiar with the River Darling.

Edited January 9, 2019 by Phone

[Steve Walker]

Eutrophication been a problem there for decades, unfortunately.

 

http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.516.5093&rep=rep1&type=pdf

[Bobj]

As you say, Phone, it is horrible and sadly, happens virtually every year, not only in rivers, but also in a few lakes. Cannot comment on why; some people blame inept Government Departments, some blame the droughts, or hot weather and waterways "turning over". I have seen it a couple of times in NSW and once in Queensland, but not to the extent that is being reported now.

All,

 

Horrible regardless of the cause. Waiting for bobj to comment.

 

Phone

 

Edit: or for that matter any of those in OZ familiar with the River Darling.

Edited January 9, 2019 by Bobj

[Phone]

All,

 

Sometimes I think we could use a little help

 

 

 

 

Phone

[Steve Walker]

Those Asian carp have done in America what every species that gets loose in Australia seems to do. Which is surprising, I guess, when you consider how vicious the wildlife is!

[chesters1]

It seems strange we empty the seas of plancton to feed animals yet ignore a vast supply of protein in those carp !?!

Or perhaps catch them and send to OZ theyre 2/3rds asian they would feel at home

Edited January 10, 2019 by chesters1

[Martin56]

All,

 

Sometimes I think we could use a little help

 

 

 

 

Phone

You don't need a little help mate - you need a bigger Net!!

[Ken L]

Between the effects of fish kills caused by farming runoff, environmental destruction by carp and thermal pollution from dams are resulting in cod having a really hard time of it.

[Vagabond]

Fished the Darling some years ago hoping for a Murray Cod. My heart sank as soon as I saw the colour of the river - a thick milky yellow, just like the colour of commercial carp puddles. Sure enough it was a carp a chuck and nothing else until I found a clear water tributary - still no Murray Cod (too small a stream ?) but I did get a rare Trout Cod from it and a few other Australian percids.

 

The fish deaths reported do not surprise me, and one could predict that the Australian native fish would succumb to the lowered oxygen levels before the carp.

 

An ironic coincidence is that the original stockings of carp were alleged to be done under the auspices of a chap by surname Pratt

Edited January 13, 2019 by Vagabond