Not a hijack that’s what I’m asking. but I don’t know what a Tuna purse seiner is
So I have a trailer from South Africa. Does it have small holes or large? Would it work in Alaska?
It is likely a joke about how big the Alaskan State-Bird, er, Alaskan Mosquito, is, requiring a tuna net to stop them.
Would it work in Alaska?
I would ask the manufacturer if it has no-see-um proof netting.
Or pick up a swatch of no-see-um mesh from a fabric store to compare to your screens.
Alaska has no-see-ums. Maine does too. Some other states do, and I expect parts of Canada do too.
What brand and model trailer do you have?
Adding additional screening can be done if needed, although sometimes it is a PITA. Making sure doors and other openings seal well is also important.
The down side to "no-see-um mesh" is that the tightly woven fabric doesn't breathe well compared to a normal screen, so it tends to trap heat and stuffy air. Other than that, there are many places that you will likely be very glad you have it!