Wednesday 20th of February 2019

fish kills...

fish kills

Voluminous emissions of carbon dioxide to the atmosphere, rapid global warming, and a decline in biodiversity—the storyline is modern, but the setting is ancient: The end of the Permian Period, some 252 million years ago. For the end-Permian, the result was catastrophic: the greatest loss of plant and animal life in Earth history (1). Understanding the details of how this mass extinction played out is thus crucial to its use as an analog for our future. On page 1130 of this issue, Penn et al. (2) add an intriguing clue: The extinction was most severe at high latitudes. Using a state-of-the-art climate model that was interpreted in terms of physiological stress, the authors further identify the killer as hypoxia, which was brought on by warm temperatures and ocean deoxygenation.


http://www.sciencemag.org/about/science-licenses-journal-article-reuse



Though the present fish kills in New South Wales are "different" to this massive extinction event, the process is similar. Lack of oxygen in the water and rising temperature. In New South Wales this process in the rivers in created by humans on three major fronts:

a) inducing global warming by burning fossil fuels — leading to lowering of oxygen in the waters.(note: the temperature for THE WHOLE month of January in Australia might have been more than 4 degrees Celsius above average. In the aras of the fish kills, this temperature might have been up to 6 degrees Celsius above average for the WHOLE month. This also increases the change of drought.

b) pumping water for crops, leaving little flowing waters in the rivers

c) fertilizing the land which creates run-offs into the rivers, leading to toxic algal blooms. 

The fish have no chance of surviving. We're nuts and the culprits pass the buck between governments and farmers. This problem was known since the 1940s, though the origins were still a bit nebulous. I was involved in exposing this problem and the origins in the early 1980s. nearly 40 yers later, NOTHING HAS BEEN DONE ABOUT IT. 

Disgraceful.



when the government tells bullshit...

Thousands more fish have died along the Darling River in far western NSW, with a drop in temperatures and some rains the likely cause, the state government says. 

Local Graeme McCrabb on Monday morning posted photos Monday on social media of floating dead fish in the weir pool at Menindee.

“It’s starting again,” he wrote on Facebook.

The NSW Department of Primary Industries has sent officers to investigate the event, which it believes has affected “large numbers of bony bream and smaller numbers of other species”.

“It is likely linked to some rain and cooler temperatures in the Menindee area following an extended period of very hot weather,” a spokeswoman said in a statement to AAP.

Menindee resident Rob Gregory said there were at least 200-to-300 dead bony bream, as well as some native species.

 

Read more:

https://www.news.com.au/technology/environment/another-mass-fish-kill-in...

caring and carelessness...

“Of course I care about the fish, but can I be honest, I care more about people.” - Gladys Berejiklian's attitude to the recent fish kills.

 

“People should be very very angry, because this has nothing to do with nature.” - Grazier Rob McBride about the fish kills.

 

Read more:

https://www.smh.com.au/national/two-things-that-three-women-taking-on-th...

 

Gladys Berejiklian's honesty is breathtaking — and possibly careless about fish kills... 

if the little fishes could evolve two thumbs...

 

Hard to believe Premier’s election promise on space

 

 

The Premier’s concern for public spaces is too little, too late (‘‘New minister for public spaces to protect NSW state land’’, February 4). She has already handed large swaths of Australia’s most historic parks, the Sydney Domain and Parramatta Park, to vested interests, against huge public opposition. - Kevin Eadie, Drummoyne

 

Is there any left? - Michael Hinchey, New Lambton


A welcome initiative that’s overdue. Regional city centres, such as Penrith that historically haven’t nurtured a network of open public space, could benefit from this. Within the last decade Sydneysiders have witnessed the rapid growth in density within our town centres often minus a commensurate quantity of open space.
It’s a pity that the new portfolio didn’t extend to include local government land selloffs. Too often under-utilised public land is sold off to bolster council coffers without a proper independent investigation of its potential as open space. -
 Cleveland Rose, Dee Why

 

...


 

In her own electorate of Willoughby, Berejiklian’s government is proposing to bulldoze six hectares of bushland to use as a dive site for the dubious Beaches Link Tunnel. A tunnel costing taxpayers $14 billion and then to be flogged off to a private toll road operator. The local community has spent the past 25 years rehabilitating this bushland, a Wildlife Protection Area and home to a myriad of important native flora and fauna. - John Berry, Cammeray

 

It’s difficult to put much store in these promises given it is on the eve of an election and that for the past eight years, despite a stream of deputations, letters, master plans and submissions, the parklands and heritage buildings at Callan Park have been allowed to fall into neglect and ruin. With a budget surplus running into billions there was no excuse for this neglect. - Hall Greenland, Leichhardt  (President, Friends of Callan Park)

 

One of the first things the new minister could do would be to step in and stop Glebe Island from being turned into an industrial wasteland and work with the community to turn this space into much needed open space for all of the surrounding area.

Open space which will be urgently required if the plans to redevelop the Fish Market goes ahead and even more apartments are added to the Pyrmont peninsula. - Sue Armstrong, Pyrmont


People can move and be fine but rivers cannot

Steve Whan says towns on the Murray-Darling should get more water (‘‘Murray-Darling plan has no friends – and that’s a good thing’’, February 4). Given he’s CEO of the National Irrigators’ Council we can be pretty sure he doesn’t want that water coming out of farmers’ allocations. So where would it come from? I think we can guess – Menindee Lakes, other wetlands, and of course South Australia and the poor old Coorong.

The needs of the system and its wetlands are not subject to negotiation You can’t talk a river system into needing less water to be healthy. If there is not enough water for those towns, they cannot be there any more. The fact a town was established in a marginal place 100 years ago does not mean it has an entitlement to still be there in the modern era of climate change. People can move elsewhere and be fine; the rivers cannot. - Andrew Taubman, Queens Park

 

Many insightful commentaries on the SA royal commission into the woes of Murray-Darling Basin, correctly point to maladministration and disregard for post-2009 climate change modelling of the impacts of climate change by the MDB Authority. However, the authority is only partly to blame. The main culprits are agribusinesses which disproportionally influence state and federal water ministers. Their political interference on MDB Authority policy is demonstrated by recent Menindee Lakes outflows, a publicly funded pipeline from the Murray River to Broken Hill and a 70 gigalitre reduction to environmental flow in the northern basin – all aimed at providing more water to big operators in the north. Follow the money as they say! - John Benson, Callala Bay

 

If the Romans could build aquaducts 2000 years ago to transport water over 100km surely Australia can develop a national water plan to transport water from NE Queensland to the Murray Darling Basin? What is the Minister for Agriculture and Water doing? The longest oil pipeline is nearly 4000km long. Townsville to Melbourne is only 2500km. We need to get on with building infrastructure that can sustain and grow Australia, the lack of a federal plan for water harvesting, recycling and reusing rainwater is a national disgrace. - Stephen Bowhill, Manly

Can people please stop suggesting that floodwater from North Queensland be trucked down and dumped in the Darling (Letters, February 4)? Townsville to Bourke is over 1000 miles by the shortest route. - John Christie, Oatley

election smells,,,

 

 

read more:

https://www.smh.com.au/politics/nsw/hard-to-believe-premier-s-election-p...

 

Read from top.

 

If the little fishes could evolve two thumbs... Actually it's four — two on each fin. Koalas have two thumbs on each forepaw so they can grip trees and branches better.

the death of freshwater species...

This article concerns the threat on freshwater ecosystems, which harbor a disproportionate amount of the world's biodiversity. In many parts of the world, freshwater ecosystems are already degraded from a range of human activities, including water extraction, pollution and physical alteration. The data that showed a biodiversity crisis in ecosystems included species loss and breakdown of the ecological processes and resources. Furthermore, several case studies were cited to illustrate the status of freshwater diversity. Numerous reasons for freshwater biodiversity loss were mentioned, which included pollution from pesticides and agricultural and mine run-off, and physical alteration through channelization and impoundments that affected the hydrology and benthic habitat. Despite the successful establishment of institutions to conserve water birds and wetland habitats, there was a lower priority for conservation of freshwater biodiversity in terms of species and habitats. This bias has had important and serious implications for allocation of resources to increase the knowledge and understanding of freshwater ecosystems, as well as for the adequacy of impact assessments for development projects affecting them.

 

This article published in 1999... (20 years ago).

 

According to the Living Planet Index. the popultion freshwater species has declined by an average of 83 per cent since 1970. 

 

Are we nuts? This is not a "natural event". This is due entirely to human activity in which we are all complicit — including the new kids and their smartphones... Wake up, you morons. And me included...