Miniature Vietnamese Pot Belly Pigs...

[SV Wind Dancer]

A. Will they thrive on a diet of fish and seaweed, and:  B. Barbecuability?   Hey, I might need this information someday! 

[AdriftAtSea]

Pigs are omnivores, so they'd probably do okay on a fish and seaweed diet... but might need some vitamin supplements.   As for edibility... do you know how to skin and butcher a pig??? If not, then eating them might be a bit complicated for you.

[Greenman]

I am pretty sure pigs can and will thrive on a fish/seaweed and whatever else they can find diet. Especially in the Bahamas

http://www.telegraph.co.uk/news/newstopics/howaboutthat/5843957/Pigs-swim-in-sea-in-Bahamas.html

[Tim]

I am pretty sure pigs can and will thrive on a fish/seaweed and whatever else they can find diet. Especially in the Bahamas

http://www.telegraph.co.uk/news/newstopics/howaboutthat/5843957/Pigs-swim-in-sea-in-Bahamas.html

I have been there and I can assure you they get more than fish/seaweed  and occasionally one of them disappear from the beach, which is a good thing because the overpopulation eventually is unhealthy.
Also they can get quite aggressive (worse than seagulls)

[newt]

And what would the locals do if they found you slaughtering one strung up on a halyard on your mast? (I have slaughtered my own pigs and I do enjoy bacon and a occasional pork chop) I may have to shoot one and run for the open seas

[Tim]

On this particular beach there aren't any locals and although the pigs are protected a little by their tourist attraction factor, that has not stopped a few of them from disappearing.

[newt]

Before I get it from the PETA section, I would note that Pigs, esp domestic then feral pigs, destroy an island like no other, and can wipe out plant species and completely trash an area. I think they should be controlled for their own sake, or they may destroy their own habitat. (Hey, why does this sound familiar?)

[SV Wind Dancer]

I think all islands with a piggie problem should have a tiny piggie icon on nav charts...