Fishing for a Reason

072: The Science of the Strike: Why Salmon Hunt (And How to Catch Them)

Jamie Propst

Use Left/Right to seek, Home/End to jump to start or end. Hold shift to jump forward or backward.

0:00 | 20:28

The Science of the Strike: Why Salmon Hunt (And How to Catch Them)

If you want to stop guessing and start understanding why salmon do what they do, this episode is for you. Jamie breaks down the actual science behind salmon behavior -- how they find food, what triggers a strike, and why your lure action matters more than your lure color. This isn't theory for theory's sake. Every principle connects directly to how you fish.

What this episode covers:

  • Why salmon in the Salish Sea are typically found in the upper 30 meters of the water column -- and how to use that to your advantage
  • Why "current change" is the phrase that should replace "tide change" in your vocabulary
  • How tidal jets create convergence fronts that stack baitfish -- and why that's exactly where you need to be
  • What the lateral line is and why it may matter more than vision when it comes to triggering a strike
  • The real science on color and depth -- and why red is essentially invisible below 33 feet
  • Why erratic, irregular lure movement triggers predatory instincts in salmon

Timestamps

00:00 -- Introduction: the science behind salmon and why it makes you a better angler 
01:30 -- Salmon School announcement (August 9, Anacortes) 
03:00 -- Where salmon hold in the water column and why it matters 
04:00 -- Current change vs. tide change: why the language matters 
05:00 -- Tidal jets, convergence fronts, and where bait stacks 
07:00 -- Using sonar to find fish that won't bite 
07:30 -- Salmon diet: herring, sand lance, and matching the hatch 
09:00 -- Lure selection: Kingfisher Spoon, Coho Killer, hoochies, and matching prey 
10:00 -- The lateral line: how salmon detect your lure before they see it 
12:00 -- Why flashers work and why lure action is primary 
13:00 -- Color physics at depth: what salmon can actually see 
14:00 -- UV and glow lures: what the science says (and doesn't) 
16:00 -- What triggers the strike: erratic movement and vulnerable prey 
18:00 -- Key takeaways and closing 
19:00 -- Salmon School wrap-up

Key Takeaways

  • Salmon in the Salish Sea primarily hold in the upper 30 meters -- your depth decisions should be calculated, not random.
  • Current change -- not tide change -- is the variable that concentrates baitfish and creates feeding windows.
  • Tidal jets create convergence fronts where herring, sand lance, and candlefish stack -- and where salmon follow.
  • The lateral line is a fish's built-in pressure and vibration sensor, and research suggests it may be more important than vision for triggering a strike.
  • Water absorbs red and orange light by about 33 feet deep -- color choices below that depth should lean toward green, blue, and UV reactive.
  • UV lures have strong anecdotal and industry support, but peer-reviewed science on UV vision in Pacific salmon at fishing depths is still limited.
  • Erratic, irregular lure movement mimics a vulnerable baitfish -- and that's what gets a salmon from following your lure to striking it.

Resources Mentioned

Want to fish smarter this season?

We have 13 spots left at Salmon School on August 9th in Anacortes. You'll get hands-on sessions on sonar, gear setup, trolling technique, reading current, and more -- including a smoked salmon tasting from Sea Bear Smokehouse. Sign up at anglersunlimited.co/salmonschool before it's gone.

About the Podcast

Fishing for a Reason is the Pacific Northwest saltwater fishing education podcast for new anglers and families who want to catch more salmon, halibut, lingcod, shrimp, and crab in Washington waters. Hosted by Jamie & Scott Propst from Anglers Unlimited, each episode delivers practical techniques, local knowledge, and expert insights to help you get off the couch and into the fish. Perfect for relocated professionals, military families, and boaters who are just getting into fishing.