It means that there are many living things in the sea.
Swarming sea
encircling boiling copper sea
a sentence with swarming
Bees were swarming in the yard. (passive sentence) Swarming bees invaded the yard. (active sentence)
After the barbecue and mosquitoes were swarming all around me.
There aren't swarming pokemon in pokemon black.
The word swarming is a verb. It is the present participle of swarm.
In front of Fuego Ironworks, but only when swarming.
Baltoy can be found on Route 3 if they are swarming there. To check what Pokemon is currently swarming, listen to Professor Oak's Pokemon Talk, he will say what Pokemon is swarming where.
me
Swarming
when ants swarm