In this article I'm going to discuss some of the reasons why fish strike and how certain lures have been designed to take advantage of those reasons.
In my mind hunger and reaction strikes are among the top reasons a fish will hit a lure and these are the ones I focus most on in my designs.
Hunger is a great one to start with because a lot of our fishing behavior is heavily geared towards addressing it. There is a reason for that. It's a lot easier to catch fish that are already thinking about eating. Everything we do from the times we fish to the lures we buy are mainly focused on when fish have historically been hungry and what they are eating. Because of this, lure companies (mine included) focus on those key types of forage and do their best to mimic them.

That said there are times when fish will shy away from a presentation that is too bright and will still hit a more natural lure. That's why you do see many lures that in fact do mimic a bait fish as best as is possible. With my lures I have tried to hit a middle ground. I've created patterns that look very realistic but use MUCH more high contrast colors than mother nature's versions and I also use a number of contrasting shapes to try to get the best of both words.
The key things to think about when trying to trigger a hunger strike are simple. Try to mimic something your target fish craves as best as possible while making sure that your bait stands out from the rest of the school.
When designing a lure that I think will trigger reaction strikes I think more about the movement and not as much about the colors. One of my favorite reaction baits is a black on black jig-n-pig. I believe that when a fish sees a jig-n-pig fall past them they only have a split second to decide if they will eat it. In that split second a jig-n-pig simultaneously looks like it could be a crayfish, a leech, a tadpole or even a small snapping turtle. All those things are very eatable for a fish. What the jig-n-pig doesn't do is give off many negative indicators. A fast moving black outline that is very fluid and natural in it's movements doesn't give a fish a lot of reasons to proceed with caution. That's exactly what I want in a reaction bait.
Another bait that gets great reaction strikes is an almost completely clear crank bait with just a small amount of flash. When a fish hears this lure splash down they naturally look in that direction. When they can't really see anything I believe they go for a closer look out of curiosity. A lot of times they end up with their noses a couple inches away from the bait and still can't see much. That's about the time I'm about to sweep my rod once hard to make the bait dive fast. As soon as the bait moves it gets hammered.
This pattern works very well and they way it plays out is very consistent. I believe that the reason the fish hits has everything to do with getting all the "right" signals and none of the wrong ones. When that happens I don't think they can help but react.
Best of luck,
Kevin Braun
Champlain Bait Co.
Web: www.champlainbaits.com
Email: info@champlainbaits.com
Twitter: champlainbaits