Reporter said all those boats were trying to snag a salmon ,didn't look like snagging to me.
It's not snagging, but it's pretty close to it. On average, over a 40 day period of trolling that area each each year as a guide I would foul hook at least 2 fish over that period...either in the gill plate, the fins or the tail.
Imagine all couple of dozen fish finning off the bottom.....dodging all those cables, cannonballs, lines, flashers etc...it's akin to tossing spinners in the Cable pool. Sooner or later those fish are going to take a swipe at it...some are going to miss...or slap as it with their tail.
Anyways, this fishery is a manufactured fishery created by a few Chilliwack Whites and then further augmented by most of the Vancouver Guide Fleet through their net pen program which releases 100000 smolts each May.
The Capilano-West Van Coho fishery has evolved from trolling with weighted lines or divers and mooching with small live herring to full blown downrigger trolling in deeper water specifically targeting Chinooks---this has become a big issue now...the Cap fishery for Chinooks directly conflicts with the Shipping Lanes.
Not long ago the regulation was that there was no fishing outside of a line from the North Tower of the Lions Gate to the Cap Light to the 15th Street Pier.
I think a line drawn from the 15th Street Pier to Siwash Rock would solve this issue...however, production would go down.
There is another option and that is to fish Point Grey to Sandheads.
In close quarters such as the Cap, if a rudder or other mechanical failure happened with a freighter....needless to say I don't believe 90% of the boats fishing the Cap in harms way would have their wits about them to get the hell outta the way..freighter horn blasting or not....it would take a sustained half throttle burst to squeak out of the way from a freighter....Asuming everyone else noticed and moved at the same time.. The enormous mass and momentum which would smash anything in it's path. Take the Horseshoe Bay Ferry crash a few years ago as an example....and the ferry has already been reversing...CRUNCH to all those boats.
Several years ago a freighter lost power and rudder just east of the Lions Gate...it took tide and a lot of tugs to get it off the bottom... That was a lucky one.