I'm not a fisherman, but I just caught a cod fish (my first one) and found a lot of strange little creatures all over the fish:

enter image description here

What are those? Are they harmful to the fish, or to the human?

Edit: it's caught on Faroe Islands

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    $\begingroup$ For identification questions please: 1) upload an image, and 2) include the location (e.g. country and region — the more specific the better). ——— The location can be an essential clue for identification and links are discouraged since 1) if they break they render this post and any answers worthless, and 2) they can be used to link to malicious websites. Thanks! 😊 $\endgroup$
    – tyersome
    Aug 1, 2019 at 17:41

1 Answer 1


Though it's hard to say exactly what you're talking about based on the image, that cod appears to have several sea lice on it:


Sea lice are common parasites of fish.


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