Anxious fish; your tax dollars are working hard

Scientists in Whangarei are carrying out comprehensive physical testing and full medical exams checking smell, hearing, vision, and even anxiety.

And fish are the subjects.

Poof-Serina-HA – DeviantArt

Niwa’s Northland Marine Research Centre in Bream Bay is the site for an experiment looking at the effects of ocean acidification, when carbon dioxide is dissolved into the sea therefore changing the pH level, and warmer sea temperatures on snapper larvae.

Ocean acidification: Another of the CAGW scams that seems to have more holes than a fish net.  Delingpole has a crack at it here

“To be able to look at the effects of climate change on such a highly valued commercial, customary and recreational species as snapper in New Zealand is a first for us and very exciting,” said Niwa marine ecologist Darren Parsons.[…]

Funny how the “climate change” is only ever tested one way; increasing temperature. What if the climate change is in the cooler direction?  Are our research tax dollars being wasted?

[…]The snapper experiment began last month when adult broodstock spawned and the eggs placed in tanks under four different conditions

In one set of tanks the temperature is 18C which matches normal conditions at the time of spawning. In other tanks the temperature is 22C which is closer to sea surface temperatures reached this summer.

Hang on!  We have a normal range of 4C and the fish survive, yet unless “Paris” keeps us under a 2C rise we are doomed?

In the third set of tanks carbon dioxide levels are kept at current oceanic levels and in the fourth the levels are raised to match those expected at the end of this century.[…]

No doubt the “expected” levels being used were accurately predicted by the “models”?

[…]During the first 35 days, after the eggs hatched into larvae, scientists monitored how fast they grew, photographed them, and counted how many died – that data has not been analysed yet.

The scientists are also watching changes in the behaviour of the fish.

For example, fish will normally swim away from water if they can smell a predator nearby. But when that water is treated with high CO2, some other species have been shown to swim towards it.

QED: Fish love CO2.  Problem solved.

Dr Parsons said to test the behaviour of snapper they put the fish in a chamber which has two water sources – one from the water the fish was raised in, and the other from a tank that had hapuka in it.

“The fish raised under ambient conditions showed a reasonably strong response where they would avoid the water that had been flowing over hapuka.

“For the fish that had been reared under the higher CO2 conditions, it’s really early stages, but it looks like it doesn’t change their behaviour.

Damn!  Now how are we going to justify the next round of taxpayer funding?

Meanwhile in a flume tank, which is like “treadmill for fish”, larvae were tested for how well they swim.

“We ramp up the speed of the treadmill until the fish can’t swim forward anymore to give us an idea of their aerobic performance and how this differs for larvae from the different experimental conditions.”

I hope PETA have approved the stress testing of these poor fish!

Vision and hearing tests are also conducted as well as anxiety tests.

“This is a start at figuring out the scale of the issues and how they might unfold over time.”

Scale of the issues.”  Haha, I get it. Good one!  When will the experiments finish?  Bad joke, cod do better.  I hope they don’t feel gillty, but if you can think of a better use of taxpayer dollars, let minnow.

It is April first, isn’t it?

-NZHerald


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In solidarity with the those in the world’s most despised demographic, WH has decided to ‘come out’ as an old white male. WH enjoys exercising the white-male privilege that Whaleoil provides for him by writing the occasional post challenging climate change consensus; looking at random tech issues that tweak his interest, as a bit of a tech nerd; or generally poking the borax at anyone in public life who goes on record revealing their stupidity. WH never excelled on the sports field because his coaches never allowed him to play in his preferred position on the right-wing. WH also enjoys his MG.

To read my previous articles click on my name in blue.

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