Deepwater Fishing

Bayou Renaissance Man brings us this report:

BEIJING has discovered a major threat to its new aircraft carrier: swarms of deadly jellyfish. Now it’s racing to develop weapons of mass destruction to beat them.

Masses of the creatures can be sucked through the warship’s water intakes necessary for cooling the vessel’s engines.

Once in the cooling vents, they get mashed into a thick, sticky soup.

This blocks the cooling system, causing the engines to overheat and bringing the warship to a halt.

It then reportedly takes days to clear the pipes.

Thus the urgent need for countermeasures.

The new jellyfish shredder consists of a net, several hundred meters long and wide, which is towed by a tugboat ahead of the carrier.

This funnels whatever falls within towards an array of steel blades.

What comes out the other side is no larger than 3cm wide.

The effect is so brutal researchers report the waters the shredder passes through become murky as the jellyfish — and other marine life — corpses begin to decompose. It takes up to a week to clear.

Bayou Renaissance Man adds:

I’m afraid the deliberate destruction of marine life to accommodate the ship is characteristic of attitudes towards nature in, not just China, but most of Asia.  The prevailing attitude in many of the countries and cultures there seems to be that nature exists to serve human interests. If it doesn’t, it must be tamed, reshaped, or removed until it does.

There are some folks in my industry who concern themselves with the design of subsea equipment, basically kit that we stick on the seabed to aid in the extraction of oil and gas from the reservoir. In shallow waters, such as those in the North Sea, they have always had to design them such that trawler nets can pass over them without becoming snagged (I heard one story from decades back that a fishing vessel snagged its net on a pipeline, turned the winch on max, and promptly sunk sank itself). In deep water, which is anything over about 600m, this hasn’t been a concern as the nets don’t go down that far. However, I heard a couple of weeks ago that a Chinese fishing ship operating offshore Angola passed its nets over some equipment a mile down.

I get the impression we’ll soon be shown that Africa’s environment, like so much else in the world, is a concern only of wealthy, middle-class white folk who are chiefly troubled by the activities of other white folk. This would explain why you don’t hear much mention of Chinese fishing boats in David Attenborough’s Blue Planet series.

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13 thoughts on “Deepwater Fishing

  1. “The new jellyfish shredder consists of a net, several hundred meters long and wide, which is towed by a tugboat ahead of the carrier.”

    Either this is b/s or it renders the aircraft carrier functionally useless. Are we expected to believe that it will steam – actually dawdle – towards wherever it is ordered behind a tug towing a vast net, whose progress through the waves cannot possible exceed 5kts?

  2. I assume that almost all Chinese weapons are copies of someone else’s. So why didn’t they copy the jellyfish strainer?

  3. The aircraft carrier is some refurbished Russian or Ukrainian one. When they did a video of it in operation a few years back, they had all the guys on deck in multi-coloured bibs trying to mimic what the Americans do but without the first idea what they were doing. I suspect this carrier doesn’t do much besides trundle along uselessly anyway. Other than the USN, is there a surface navy out there capable of anything more than escorting dinghies full of migrants?

  4. This must be part of their next five-year plan for environmental protection. Anyway, how do other navies with aircraft carriers deal with this problem?

  5. Actually, since its sister ship, Admiral Kuznetsov, needs an ocean going tug to accompany it wherever it goes – as we saw on its little Syrian venture last year – as it is constantly requiring a helpful tow, maybe the net-towing tug wont effect its utility.

  6. It’s purely for show as China doesn’t need an aircraft carrier, since it’s building fixed aircraft carriers throughout the South China Sea.

    Jellyfish is, of course, a delicacy in China, so with a bit more thought they could keep the crew fed on the output rather than wasting it.

  7. “The prevailing attitude in many of the countries and cultures there seems to be that nature exists to serve human interests. If it doesn’t, it must be tamed, reshaped, or removed until it does.”

    Sitting here in my heated house with a roof over my head, with roads bulldozed through the rocks to reach me, pipes driven down into the earth to bring me water, nearby ditches dug to channel rainwater away, and a dammed river nearby, I’d have to strongly agree with this attitude.

    It’s only when other people do it, for their own benefit, that arouses my environmental fury.

  8. I can believe this. The aircraft carrier exists to project the length and hardness of PLA generals’ cocks, rather than to project China’s hard power.

    Re: the environmental lark; the CCP doesn’t give half a shit about the lives of Chinese citizens, why would it care about wildlife?

    Come to think of it, sentimentality about animals is a particularly British trait, shared by some of our American cousins. No-one on the continent cares either: the French countryside is largely devoid of wildlife because the locals have shot it; the Spanish treat donkeys like ISIS treats gays and the Greek peasantry’s treatment of donkeys would break the hardest heart.

    And the Germans fuck animals of course. Legally.

  9. Anyway, how do other navies with aircraft carriers deal with this problem?

    From what I can tell, by ensuring their carriers are so unserviceable or have such major design flaws they are unable to go far enough to find jellyfish to clog the water intakes.

  10. “It’s only when other people do it, for their own benefit, that arouses my environmental fury.”

    Reminds me of Dr Mahatir pointing out the irony of the Brits clearing of the bonny banks of Loch Lomond many years earlier when they were were criticizing Malaysian for logging.

    “And the Germans fuck animals of course. Legally.”

    Zoophilla is probably a throw back to National Socialism’s bold environmentalism and their deep love of animals.

    “building fixed aircraft carriers throughout the South China Sea’

    The West has went a little quiet on this for now.

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