There's something about fishing for bluefin tuna that changes a fisherman. It gets even the greenest rookies talking like old salts, and walking with a slight swagger to their step.
One of the side affects of this phenomena is you start to hear a lot of "secret" lure and "special" color talk. It's been a staple of bluefin fishing for at least 20 years, and God willing, my grandkids will someday be swapping flies and lures before they swing into the dock.
Let's take a little look the bluefin, to help you understand why fly choice and color are so utterly important. First off, we have a fish that has tremendous visual acuity. I have seen them hang off the transom of the boat taking every chunk we threw over the side, except the ones that had hooks in them. We tried mousetraps, flouro leader down to 30 lb., everything, and they simply would not take the hook baits. What does that tell us? They were either able to see the leader, or the weight of the hook (and we were using small size Gamakatsus) was affecting the way the bait sank. Do not underestimate their eye sight!
When trolling for school tuna, we used to use smoker-type lures like Green Machines. These lures leave a bubble trail, which I always felt did more to camoflage the lure than to actually imitate a fish. Several smokers would look like a school of paniced, spraying bait. So if you're using spinning tackle or flies, I'd suggest you give consideration to something that throws a spray of water, like a big popper.
Hot colors are an interesting topic. I've seen times when pink was the color, green, and even purple (I give up, what bait would purple imitate?). Another trolling trick we've used is "birds" in the center of the lure spread, with chrome or mirrors. The flash seems to really interest the tuna.
Capt. Derek Spingler of First Light Anglers, who's been targetting school bluefin with light gear and flies for longer than many of you have been fishing has to say about lure choice:
Hydro Metal jigs in 40g and 60g. They have been outstanding. The best colors have been green mackerel 60g and 40g mullet. These are the jigs that have the fish on one side and a squid on the other. Very very solid producers, we landed dozens of fish on them, even leaving the treble hooks on. The megabait and braid jigs have also worked well, however, these hydro metal jigs have definitely outfished the others. Good luck!
Tidbit of the week: Did you know that Bluefin Tuna have been known to dive as deep as 1000 meters? Recent tagging programs have proven it!
That's it for this week.