Fishing Day: Science Fiction

The fishing was fine that last Saturday afternoon, the last one the ones that we were to enjoy. We didn't know that, though, of course. To us, it was just a mighty fine fishing day. To the invaders, it was a sign that our people would do just fine dumped on one of their colony worlds where there was nothing *but* fishing days, because the only land there was was owned by the invaders or the extremely, extremely wealthy ones. I suppose some would say that we should be grateful we weren't killed outright like so many others when the invaders came. They destroyed our cities, bombed our governments, and assassinated any spare official that remained. Then they figured out what the ideal population load for the Earth was, allowing them to have pleasant vacations there and to get the maximum return from the planet. We were a few billion over--

Inspiration: Silly fishing game.
Story Potential: High.
Notes: Oooh, a survivalist story, fish out of water (or non-fish *in* water). Tempting. Also sounds novel-length. Basically just a set-up.