Fish are shrinking around the world. Here’s why scientists are worried. | Figuring out the reason why has big implications, with billions of people depending on seafood for protein.

The pair restarted their work in Massachusetts with about 400 brook trout reared for up to eight months in tanks. The scientists kept some of the fish in waters set at 59 degrees Fahrenheit while others at 68 degrees Fahrenheit. All were fed the same diet.

By the end of the experiment, the difference was stark. The trout raised in warmer waters were on average less than half the size as the other fish.

Raiderkev,

I mean smaller fish would not get caught in nets. Something something Darwin…

silence7,

The article talks about that — species which aren’t being fished also got smaller. What’s a mystery here is the physiological mechanism that causes fish to grow smaller in warmer water.

IninewCrow,
IninewCrow avatar

Mass Starvation and mass migration due to the climate change

These are the two things that will severely affect every part of the globe in the next few decades. No one will care about why the animals are dying or getting smaller, or why storms are getting worse or why floods are happening .... millions of people will be moving into places where other people already live and people won't like that.

And we'll wonder why the world is degrading and why we are fighting one another.

Drusas,

I agree, except that the majority of us will know full well why the world is degrading and we are fighting one another.

livus,
livus avatar

The billions of people who depend on seafood are already in dire straits with richer nations stealing coastal fish from poorer nations.

maynarkh,

The other day I read the history of the Somalian pirates. Basically corps from wealthy nations like China stole all their fish with bottom trawling, and after the initial failure of their state they had nobody to enforce the rules. They tried chasing off the illegal fishers themselves, but were declared pirates because of that. Then they went “if we are pirates anyway, we might as well”, and then we get to the part when the US went in to shoot up their capital and made a movie about it.

livus,
livus avatar

Yes it's really tragic what has happened there. We see the same thing sometimes with "poachers".

Neon,

Okay, so we’re getting mad at Norway for legally buying fish from these countries but not at China for literally illegally entering and fishing in poorer nations coastal waters?

Also, what would happen if Norwegian Companies refused to buy african Products or the Norwegian Government put an Embargo on African Fish? wouldn’t that be seen as racist or protectionist, as harming the African Economies?

livus,
livus avatar

I posted that article as an example to illustrate my point not an overview of the entire topic. It's well researched and quantifies the number of people adversely affected.

I chose it because fewer people know about what Western countries are doing to the sea, than know about China. But since you asked, here's a good article about some of China's predatory fishing practices around poor nations that I posted a few weeks ago.

wouldn’t that be seen as

By whom? I'd love it if the West stopped taking fish from the mouths of poor nations, and so would the millions of people adversely affected by it.

The so called "free market" ideology that if you can legally pay elites for something, you're entitled to take it, has deepened and intrenched global inequality. It has also created grotesque distortions such as food exports from countries in famine.

Neon,

By whom?

By all the African Nations we would effectively sanction

Also i have to point out the near-colonial mindset of “we know better than you what your country needs, so we’re embargoing you to protect your nature”

If anything, the local Government should impose an Export-limitation or even an Export-ban

livus,
livus avatar

@Neon yeah I think you need to actually read the article before you @ me about this stuff. You're constructing a massive straw man involving embargos and local companies that has nothing to do with the real situation.

The Feedback report takes a different perspective, recommending the Norwegian government to “halt the growth of Norway’s salmon farming sector” and “ensure the domestic farmed salmon industry does not undermine its global development goals.”

The NGO based its calculations on public commercial data and company reports by the four companies that together supply close to 100% of the feed used in Norwegian salmon farming: Mowi, Dutch-owned Skretting, U.S.-based Cargill and Denmark-based BioMar. According to Feedback’s analysis, all of these companies sourced fish oil made from small pelagics caught in FAO’s Major Fishing Area 34, located off West Africa.

livus,
livus avatar

Kbin thumbnail bug strikes again, this article has a thumbnail of that US dog killer politician pouting. Makes it look like she's angry she can't kill bigger fish.

LarryTheMatador,

deleted_by_author

    •
    livus,
    livus avatar

    Gravel pit of doom.

    dohpaz42,
    @dohpaz42@lemmy.world avatar

    Damn, even Mother Nature is hitting us with shrinkflation.

    aniki,

    No one has to eat fish.

    dohpaz42,
    @dohpaz42@lemmy.world avatar

    Sigh. Ignorance is bliss, isn’t it? Not everybody can afford high-priced foods or have access to the same foods you do.

    aniki,

    Doesn’t matter – fishing, as an industry, is entirely unsustainable and we’re both dredging the bottom of the ocean destroying ecosystems and polluting the waterways with hundreds of tons of plastic refuse every year.

    Whos the ignorant one? The one that thinks the vast majority of fishing isn’t abhorrent industrial practices. The one repeating known propaganda from the fishing industry.

    VirtualOdour,

    Yeah and if there are places that rely on fish to survive then it’s kinda evil of anyone in an affluent nation to est fish from our big trawlers depleting their reserves.

    Stop eating fish, it’s thy only moral option.

    dohpaz42,
    @dohpaz42@lemmy.world avatar

    There is a difference between a negligent fishing industry, plastic pollution, and people who need fish for their diet because they cannot afford otherwise. I’m speaking to the last one, which has nothing to do with the other two; one of which has very little to do with the other. Your argument is all over the place.

    Kolanaki,
    @Kolanaki@yiffit.net avatar

    There are places in the world where without eating fish, people would starve. So actually, some people do.

    vividspecter,

    Currently in a small number of places, but this is very much a solvable problem, not something inherent.

    Gigan,
    @Gigan@lemmy.world avatar

    What’s your plan to convince billions of people to stop eating fish?

    9tr6gyp3,

    You cant. The fish will just be gone one day and that’ll be that. Then those that relied on eating fish will starve.

    This is already happening btw.

    match,
    @match@pawb.social avatar

    Many people are poor, rural coast dwellers

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