Bonito on Metal Lures: Find the School and Match the Bait

Bonito can make a light spinning outfit feel very lively. The frustrating days are when fish are feeding in plain sight and your lure comes back untouched. Before changing every colour in the box, check three things: how you approached, how closely the lure matches the prey and where the lure is travelling.

This is a boat-based guide to casting metal lures at bonito and the mixed feeding schools they sometimes join. It is not an invitation to chase a school through other boats or cast into feeding birds.

Find the activity, then identify what you are seeing

Birds are useful eyes above the water. A group repeatedly turning back to the same patch deserves attention. So does a line of birds moving steadily along a feeding front. A few birds resting on the surface may be a clue, but they are not proof of a school of bonito directly underneath.

Slow down and watch. Is bait scattering? Are fish showing on top, or are the birds searching without feeding? Which way is the disturbance travelling? Keep an eye on the surrounding water instead of staring at the place where the last splash occurred.

Mixed schools are common enough that you should not name every surface fish before seeing one properly. Salmon, tailor, small tuna and kingfish may be taking advantage of similar bait. The practical first job is finding feeding activity. Correctly identifying a retained fish, and checking the applicable local rules, comes before putting it in the icebox.

Make the first approach count

A feeding school is not a destination to drive through. Get the rods ready before you arrive, reduce speed while you still have room and choose a position that lets you cast without crowding the fish or another boat.

Allow for both wind and drift. A position that looks perfect at first can put the boat across the activity a minute later. Leave enough space to adjust safely. Do not cut across another angler's line or force your way into the gap between a boat and the fish it is casting towards.

Where there is clear water and no birds in the casting path, aim to work the lure through an edge of the activity rather than dropping a heavy splash into its centre. If birds are in the way, wait or change your angle. No cast is worth hooking a bird.

When the school sounds, stop charging after the last splash. Watch for the next appearance and check whether the fish have moved or merely dropped deeper. Andrew has described sessions where fish became boat-shy and a hurried approach put them down. That is a useful reason to arrive quietly, not a promise that every quiet approach produces a fish.

Match profile before arguing about colour

On one Shop session, small metals produced bonito as well as salmon and kingfish. The useful observation was that the jigs matched the length and shape of the bait. The lesson is not that a particular ten-gram lure must work everywhere. It is that a lure much larger than the food can be a poor starting point when fish are feeding selectively.

Look for actual evidence of the prey: small fish scattering at the surface, bait already visible beside the boat or the profile of what the fish are chasing. Do not assume a big predator requires a big lure.

Start with a slim metal of a suitable size that your outfit can cast cleanly. A reflective finish is useful, but a different paint colour is unlikely to fix a lure travelling well above or below the fish. Keep colour changes in perspective while you sort out size, depth and approach. The lure colour, flash and glow guide gives a controlled way to compare finishes after those basics are working.

Balance casting distance against lure size

A metal needs enough weight to reach the fish and enough control to work at the chosen depth. That does not mean selecting the heaviest one your rod will cast.

If a small lure will not reach, first check your casting position, wind and whether the rod is suited to that lure. A smooth cast with an appropriate outfit is more useful than trying to punch a light lure with tackle that cannot load properly. Stay within the rod's casting range and keep the backswing clear.

A heavier metal may help in wind or when fish are deeper. Where possible, compare actual profiles rather than weight alone. Two lures of the same weight need not have the same length, width or fall. For the broader weight decision, see our practical jig-weight guide.

Change speed and depth deliberately

A brisk, straight retrieve is a useful starting point for a metal being chased by active bonito. Watch the lure near the boat so you know whether it tracks cleanly or is being dragged out of the water. Fast does not have to mean uncontrolled.

If the fish stop showing on top, try allowing the lure to sink before starting the next retrieve, provided the water is clear of birds, traffic and snagging hazards. Count the sink time so you can repeat it. That count is a way of comparing presentations, not a reliable depth measurement in changing current.

Try a steady retrieve first, then a controlled change such as a brief hesitation or a few sharper movements. If one presentation gets followed or hit, repeat it before changing again. When fishing with a mate, testing two sensible alternatives is more informative than both swapping lures at random.

Do not keep winding a fouled lure just because fish are visible. A hook caught around the leader or a clump of weed can spoil the retrieve. Fix it and make the next cast count.

Check the small parts between fish

Small hooks and cords can be easy to overlook during a busy bite. Check the hook point, leader near the lure, rings and assist cord after a fish or a suspicious knock. Replace a cut or frayed part rather than trying to squeeze one more catch out of it. Use the assist-hook fit and wear guide when the jig carries a corded assist assembly.

Have the net and pliers ready before a fish reaches the boat. Keep a loose lure away from hands and feet, especially if another hook is still free. If you intend to release the fish, organise the unhooking before lifting it out and keep the handling brief. Do not use a long photo session as part of the routine.

When fish are feeding and you are not hooking up

• Other boats are catching, yours is not: compare approach, lure profile and retrieve depth before deciding the fish want a particular colour.
• Fish follow the lure: change one element of speed or action and watch the response.
• The school keeps going down as you arrive: give it space and rethink the approach, rather than applying more throttle.
• You get taps but no solid hook-up: inspect the point and make sure the hook is not trapped against the lure or leader.
• The surface goes quiet: watch the birds and surrounding water; consider a deeper presentation instead of assuming the fish have left.

The current 10 g knife jigs are one small-profile option, not a universal answer. Carry alternatives, keep the terminal tackle sound and pay attention to what the bait and fish are doing. The best change is usually the one that solves a visible problem.