The designer of that vessel should be SLAPPED and his eyes poked...
From Martinac shipyard, Tacoma, Wa
Line in lower foreground leads to seine skiff which tows just hard enough to keep the web coming up over the quarter on other side of boat, as pictured. I don't see purse rings in the picture...wonder if they are fishing half-purse. Always thought all the tuna seiners were full purse. Oh, well, never seined tuna , only salmon in WA & AK, and squid & 'chovie, Monterey Bay, plus some lampara for live bait among other things, bottom trawling, set & drift gillnets, some hook & line fisheries, a little bit of long-line, some crabbing.
Nice boat though, huh?