I said: 'would you like some edible crab with that date liquor?' No seriously, there is a species named edible crab. Somehow it's not yet endangered.
on a related note Most of the food comes from fish migrations. After a fish migration everyone eats fresh for about a day, and then the fish are salted for longer storage, which is usually a few weeks, at which point there is another migration. The migrations are caused by the shifting of the underwater ecosystem in the East, West and South Mandagal (two areas of sea a few hundred miles east and west of el Dun-Duri and one near the south point of the island) areas, due to faraway underwater streams shifting because of the change of seasons. For some fish the water gets too cold, for others too warm in certain seasons, and they start moving around. Most fish pass by yearly, but others only pass every few years, although those usually don’t live in the Mandagal areas, but pass the city to reach their mating grounds. Travel is from east to west, with the fish swimming back east through the other side of the isle. Migrations are(simple name first, real life variant meant in (*)): whiting: yearly, start of 1st month (very gross, only ate by people who can’t afford salted anymore) Halibut (atlantic Halibut): yearly, end of 1st month Herring (atlantic Herring): yearly, end of 1st month Poor anchovies (sprattus): yearly, middle 2nd month Anchovies (atlantic anchovies swarm): yearly, begin 3rd month Giant Tuna (giant bluefin tuna): yearly, end 3rd month Warm cod (pacific cod): yearly, begin 4th month Giant prawn (giant tiger prawn): yearly, begin 4th month Lesser Halibut (pacific halibut): yearly, begin 5th month Stone cod (rock cod): yearly, end 5th month Small prawn (brown tiger prawn): yearly, begin 7th month Brown lobster (western rock lobster): yearly, begin 7th month Red lobster (Patagonian lobster): yearly, begin 7th month Colour fish (queen anglefish): yearly, end 8th month Blue fish (blue dot grouper): yearly, end 9th month banded fish (cortez angelfish): yearly, middle of 11th month striped tuna (blackfin tuna): yearly, begin of 12th month small tuna (southern bluefin tuna): yearly, middle 13th month Solefish (common sole): yearly, begin 15th month Cold cod (atlantic cod): yearly, middle 15th month Stone cray (Stone crayfish): yearly, end of 16th month Big cray (noble crayfish): yearly, end of 17th month Edible crab (edible crab): yearly, end of 17th month Eel (green moray eel): every 3 years, end 12th month Nightfish (orbiculate batfish): every 2 years, begin 10th month
i prefer the good old fashioned way to fish, go far out into the sea with friends, cooler of what ever drink you like, and a couple metric tons of explosives. Making sure you get a least something that day.