So, I tried my contraption today. 40 feet long, single ply of the snow fence. I deployed the seine from a rowboat, which was a little difficult by myself in the wind. The floatation and orientation is really good - hangs nice and vertical.

The wife and I each took an end and pulled it in to shore. Not too difficult. The seine does a great job of gathering up everything in its path. This is unlike tossing a rake, which sheds vortices from the ends as you retrieve it, and chunks of algae swirl away.

Now the hard part begins - rake out the algae, load it on the yard glider, and unload it far away. Then, extract the seine from the mess and repeat many times. At least I don't have to put on my waders for this job.

Attached are the before and after photos.

[Linked Image from i.imgur.com]

[Linked Image from i.imgur.com]