Is there a tutorial? I am intrigued, because production of one of thesee would certainly result in a net gain...

Seriously, it looks useful.

Very nice work!

Thanks for the feedback.
For some reason this site will not allow me to make a direct link to how I made the net bag so here is the indirect way.
1. Click on my signature and ignore the warning about the forum
2. Click on the word "FORUMS" at the top (White on black)
3. Scroll a little more than 3/4 way down to the "Nets and
Net making" section.
4. Click on "Netmaking Instructions".
5. To make the net in the photo I used the techniques shown
here

1. The chain start
2. Using the chain start for tubular-circular nets
3. The drop knot
4. Five ways to finish the bottom of a tubular net
Other techniques are shown as well