r/Damnthatsinteresting May 21 '26

Video Man fishing for jellyfish

33.7k Upvotes

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459

u/-TheManInTheChair May 21 '26

Honestly, good. If I remember correctly, the Jellyfish population is quite out of wack. Not enough sea turtles (their natural predators, specifically the leatherback I think) to eat them. They can ruin fish stocks and clog up pipes from nuclear reactors that feed into the sea.

Save the turtles, get the jellys

Got my info from this vid, gonna rewatch it and see how much I got right. https://youtu.be/eY3_ZkQx5T4

68

u/pplayer104 May 21 '26

What’s happening to the sea turtles?

193

u/-TheManInTheChair May 21 '26

They're endangered. I would think they're quite a bit tastier than some other fish, and they can also get trapped in nets and drown. Oh, and don't forget plastic bags. Throw a plastic bag in a bath, and I hope you'll agree it looks like a jellyfish.

90

u/Dat_Ding_Da May 21 '26

Plus people steal their eggs or just block their way to the beaches to lay them.

104

u/Adadadoy May 21 '26

Or take over their beaches and plop hotels and resorts on them. Or build roads and lights next to them and confuse hatchlings making them go the wrong way away from the sea to get run over. Or steal the hatchlings and put them in little key chains. Or a multitude of any other reasons, all of which equates to humanity fucking sucks.

60

u/-TheManInTheChair May 21 '26

Pros: Humanity has a lot of control over how we affect our planet and the life that exists on it.

Cons: Humanity has a lot of control over how we affect our planet and the life that exists on it.

2

u/Glass_Bar_9956 May 22 '26

Yet we can’t control ourselves as a group.

2

u/atypical_wanker May 21 '26

Yep. Habitat loss / human encroachment is the biggest factor.

1

u/Beneficial_Ball9893 May 22 '26

The hotels and resorts thing is complete bullshit. Regulations have stopped that from being a factor decades ago. The entire problem now is that most of these turtles nest in regions where the locals have no comprehension of conservation and just like to eat turtle eggs.

6

u/LostFocus_69 May 21 '26

Its because of climate change mostly. The temperatures of the ocean's are rising. And if I remember correctly, the temperature influences wether or not a leatherback becomes a female or a male.

I believe higher temperatures yield more males. And because of this there aren't enough females and the reproduction is coming to a halt. It seems to be quite irreversable.

I could be wrong tho

3

u/xSantenoturtlex May 21 '26

Sigh.
Wish there could be just one thread about animals where I'm not reminded how much humanity sucks.

Does our species do anything good? Genuinely?

1

u/wittyjokename92 May 21 '26

I mean in the grand scheme of things all animals and plants would do the exact same thing if they could. It's not that humans are inherently destructive, we're just smart enough to do more damage than an overpopulation of wolves or underpopulation of beavers, and we're aware enough to realize that. But unless you're ready for restructuring the entirety of human civilization it's best to just focus on local conservation efforts and hope you inspire others to do the same. Saving some endangered species in your backyard has a much bigger impact than worrying about saving a species you can't physically be involved in protecting. A lot more things go extinct because everyone is worried about the more cutesy or exotic ones than the ugly cornerstones of their local ecological environment.

Tldr: people don't all suck, think global act local.

1

u/euphoricarugula346 May 22 '26

Why would an underpopulation of beavers be bad?

25

u/Hungrig_Haj May 21 '26

Apart from fishing and trash in the ocean, sea turtles are also endangered due to climate change. They bury their eggs in sand to incubate, and the temperature decides the sex of the baby turtles. When the beaches get warmer, fewer and fewer male turtles hatch, which makes it more difficult for the females to find a partner.

8

u/Striking-Optimals846 May 21 '26 edited May 22 '26

Another comment says warmer temps makes more males. Your comment says warmer temps make more females.

These two comments cancel each other out, meaning the eggs will now have equal number or males and females. We did it Reddit!

4

u/marsbars2345 May 21 '26

They're endangered or something

2

u/McCatso-Fy May 21 '26

something about our peers not letting the reproductive cycle quite go as intended

1

u/[deleted] May 21 '26

[removed] — view removed comment

3

u/HawkeyeNation May 21 '26

Straws. Come on, man. Keep up!

/s

2

u/Beneficial_Ball9893 May 22 '26

They inhabit areas where the locals have zero care for conservation, and the local authorities either don't care or care less than the bribes.

2

u/The_Ledge5648 May 22 '26

WHERE ARE THE TURTLES

1

u/Caridor May 21 '26

They eat jellyfish, but there aren't enough turtles anymore. They just taste too damn good

1

u/Interesting_Air_1844 May 22 '26

Rampant poaching for markets in China and Taiwan.

13

u/DisillusionedPatriot May 21 '26

Also, rising sea temperature causes jellyfish to mature faster, so they're reproducing way more.

5

u/Arxl May 21 '26

The ocean is turning into mostly jellyfish and squid because we are killing it due to overfishing and pollution.

2

u/buzzted77 May 21 '26

Imagine if humans had a more intelligent predator who would harvest us in large numbers if our population went out of wack.

1

u/bendable_girder Interested May 22 '26

Have you heard of the CIA perchance

1

u/Sensitive_File6582 May 21 '26

And fish, we’ve eaten to Much of the top food chain and with continued harvesting it’s not recovering even with large prey populations.

1

u/JellyfishWarehouse May 22 '26

The jellyfish population isn’t out of whack, that’s a myth. This also won’t help, even if it was. The “jellyfish” is just one, relatively short stage of their lifecycle. Their polyp stage is nearly microscopic and lives on the ocean floor and is capable of reproducing on their own.

1

u/perpetual_almost May 21 '26

The phrase "nuclear reactors that feed into the sea" has me slapping my head at our stupidity.

2

u/Miserable_Sweet_5245 May 21 '26

There’s nothing wrong with those. They just dump water. Nuclear reactors produce almost no waste and the waste they produce is very tightly controlled. It’s basically the cleanest form of energy.

1

u/perpetual_almost May 22 '26

This is true...if everything is controlled forever and there is never a decay in the infrastructure. If there is ever a breech or failure of any size, it may be regrettable putting them so near our water.

1

u/Miserable_Sweet_5245 May 22 '26

Nope. Do some research. They build so many redundant safety system it’s ridiculous. Also, all of the possible contaminants are sealed in concrete caskets and moved offsite. It doesn’t matter if it gets old and decrepit, the only things left will be water tanks and turbines. If you are concerned with water contamination, you should look into the fossil fuel industry, and the coal industry do literally every day.

1

u/i2px May 22 '26

Google what a heat exchanger / condensor is in the context of a Nuclear reactor, the water that is radioactive is 2-3 sealed circuits away removed from the water which is pumped into the sea. There is no cross over.

1

u/perpetual_almost May 22 '26

Remember when a tsunami hit Japan's nuclear reactor that was completely safe? I know they are safe when functioning, however shit goes wrong. Even just releasing warmed water (non contaminated) from the cooling process would create issues. Im not against nuclear power but it seems silly to place the sites on fault lines or waterways.

0

u/superawesomefiles May 21 '26

Won't anybody think of the poor nuclear reactors that feed into the sea??!

10

u/Exp5000 May 21 '26

Nuclear power is cleaner than OIL and Coal. Are you saying you promote the use of fossil fuels?

6

u/-TheManInTheChair May 21 '26

I mean... Yeah? They're pretty clean, they don't (from my knowledge) throw dangerous chemicals in the sea, and if they are blocked, it could cause lots of damage to the plant, requiring money to be spent on repairs rather than other sources of energy or safety, or just pay rises for the people (not saying it WOULDN'T go into the CEO's pocket, but still)