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Comment by electic | Hacker News Reader

It is too bad the reason for why they never take hold is never really outlined in the article. Is it the environment? Or some other species that prevents eggs from taking hold?

Either way, sounds like most most of these will also share the same fate.

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Are Atlantic salmon not migratory like Pacific salmon?

Pacific salmon are born in fresh water rivers and travel downstream to the river. When it's time to mate, they migrate back up fresh water streams they were born in to mate and then die.

If you were farm born and raised then where would you migrate to mate?

About the only thing Atlantic salmon have in common with Pacific salmon is being called salmon and being a member of the trout family.

From what I've found in my extensive research (5 minutes of Googling), Atlantic salmon still migrate to fresh water sources however unlike their Pacific counterparts they don't die after spawning.

Someone should tag and release a bunch of farm raised salmon and see what happens to them.

Good Question. But do they not get fished / killed before they mate?

As one of the point of farming them is that dont get to fresh water and decrease the risk of parasites.

The article mentions the farmed fish spread parasites because of the cramped spaces. I’m assuming a greater chance of parasites in farm than in the wild?

The ones that escaped the farm might not get killed.

The article mentions that they have difficulty feeding in Pacific waters. “Stomachs full of wood chips, or empty”

I'd hazard a guess that that's because they're farm born fish that have been released into the wild, than because they're in pacific waters. Previously they have simply eaten whatever pellets got thrown into their pen. Now they don't know what to eat.

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