Hmmmmm,smoked mullet.....YUCK...
It's been decades since I smoked a mullet, but back in the day of no money and a cast net there was no better way to quickly catch a buttload of fish from land than that combination. But that was also when you could walk a mile of seawall and nobody screamed at you to get out of their yard, cause there wasn't a fucking house every 100 feet.
Every spring and fall I dream of catching smoker Kings (and occasionally I do), but I'm always happy with snakes as they have no measurable mercury content at that young age and they make awesome smoked fish spread.
duck weed
snake grass
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look at all that beautiful compost fodder... this is how I be getting down harvesting that stuff... I have a barge I built out of four plastic 55 Gallon drums, two pieces of 3/4 inch ply wood, and 2x4's for a frame. I get out in the middle of the pond with a rake and pitch fork and hunch. it's a PITA. keeps the pond clean.
Most aquatic plants compost quite well and since they generally derive their nutrition by removing nitrates from the water source they provide N as they break down.
If somebody ever figures out how to make biofuel (or anything else useful) from duckweed, they will be wealthy beyond their wildest dreams. You can't eradicate it, you can't over harvest it and in ideal conditions it's growth rate and biomass is just unbelievable.