• protist
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    7 months ago

    Pretty sure parasites are widely present among wild fish. Not defending fish farms, but parasites aren’t only present on fish farms

    • tb_@lemmy.world
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      7 months ago

      aren’t only present on fish farms

      No. But if you keep a lot of fish really tightly packed in the same place those parasites will have a much easier time spreading.

      • protist
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        7 months ago

        Yes. Again, my point is that fish parasites are widely present in wild fish populations and have been since before fish farming existed

        • tb_@lemmy.world
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          7 months ago

          Yes… But with open net fish farming you get more fish with parasites and more parasites per fish. So it was a lesser problem before.

      • protist
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        7 months ago

        Sure, but parasites are still widely present in wild populations