alt Hacker News> This seems like an impossible requirement to meet for landlocked countries.
Why? There's plenty of freshwater fish that are farmed around the world. Trout, tilapia, etc.
> It's not enough just to label a country as producer/not producer for a category but rather whether that production is fully stable and internalized in case of disasters/war.
Conversely, many industrialized and wealthy countries can probably shift their production pretty easily. For example, looks like Hungary is doing well on fruit but not on vegetables. This is probably not because it's hard for them to grow vegetables, just that there's no economic incentive to.
Similarly, the two-way legumes / veggies difference between the US and Mexico probably boils down to free-market economics or government subsidies more than to any real agricultural bottlenecks on either side.
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> There's plenty of freshwater fish that are farmed around the world
Farmed fish are often fed on fish meal from the ocean - e.g. fish meal made from species that are not eaten by people. Between 5% and 10% of ocean fishing is used for such aquaculture.
Same same as the cattle example in Ireland being fed on imported animal feed.
> There's plenty of freshwater fish that are farmed around the world. Trout, tilapia, etc.
Not to a level that could feed the entire country, surely.