One of my clients in NZ sells mussels to US and China and has had to close down production as you dont need them for your restaurants anymore. No other food issues here I can see our local supermarket was well stocked and quiet, though I am out in a rural area

Relevant: https://news.ycombinator.com/item?id=22711661

I have only heard of kiwifruit going unharvested. We’ll all soon know (if product has no coolstores, and assuming farm to supermarket delay is about a week).

> crayfish (lobster in US)

Crayfish is crawfish in the US, not lobster

NZ Crayfish are called Rock Lobster in the US.

http://www.leefishusa.com/products/lobster/spiny

Crayfish in NZ is the size of lobster in the US.

Now I wonder how big their lobsters are.

[EDITED. I was talking of the wrong species]

There are some giant crayfishes in Australia. Much bigger than the standard old world crayfishes. Some (Cherax) can be raised in captivity and are very similar to lobsters in size and color, except that they are non marine.

Closing sea ports should not to be a problem for those species at short term (as long as there are reserves of crayfish food remaining of course).

Technically, they're langoustine.

Literally, they are kōura. Technically, they are https://en.wikipedia.org/wiki/Jasus_edwardsii

Edit: the dictionary says langoustine are another species, although one of the joys of English is making it mean what you want!