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Full garfish guide
How to spot it, where it lives, how it is caught and how to cook it — the complete guide, in one easy read.
Few fish look like the garfish. Slim as a ribbon and tipped with a needle-sharp beak, it skims the warm Cornish surface through high summer, often shadowing the mackerel shoals. Anglers overlook it, which is their loss: it fights above its weight on light float gear and makes surprisingly fine eating.
How to spot it
You won't mistake a garfish for anything else. Long, ribbon-thin and tipped with a slender pointed beak, it looks like a scaled-down swordfish gliding just under the surface. The back carries a deep greeny-blue sheen that fades into a bright silver belly, ideal camouflage against surface glare. It reaches around 80cm yet stays so narrow it always feels lighter than its length suggests. That eel-like body and miniature sword of a beak set it apart from anything else off the Cornish coast.
Where it lives
Garfish hold in the upper water, rarely dropping below the top twenty metres. They cruise near harbour walls, around rocks and moored boats, and very often track the summer mackerel shoals as they sweep through. In Cornwall they are a strong summer visitor, showing best through May and June as the seas warm. Marks around Mullion, St Keverne, Coverack and Mevagissey all see them once the water temperature climbs. Patrolling so close to the top, they are reachable straight off the shore, with no boat or long casting needed.
Catching it
Float fishing is the classic way to reach a garfish, with the bait set just under the surface where they patrol. They are not fussy: a strip of mackerel, a peeled prawn, a section of worm or a slim sand eel all draw interest. The bite is a darting, twitchy thing as the fish worries at the bait with that bony beak, so hold off and let it commit before you strike. Work the warmer months from harbour walls and rock marks, ideally where mackerel are already showing. Garfish are listed as Least Concern and aren't a pressured species, though they've never been formally stock-assessed; there are no size or bag limits, but the habit still holds here: take a couple for the pan and slip the rest back.
In the kitchen
Do not let the odd shape fool you: garfish makes fine eating. The flesh is firm and meaty, and it stands up to a hot pan, the grill or the barbecue. To fillet one, run a sharp knife down each side of that long backbone; the frame lifts away cleanly and leaves two slim, almost boneless fillets. Crumb them and shallow-fry, or coil the whole gutted fish on the barbecue with bay and lemon. Now the party trick: the bones turn vivid green once cooked. That is biliverdin, a harmless natural pigment, and it changes nothing about the taste, however alarming it looks on the plate.
Related guides and gear
FAQs
Quick fish questions
Short answers for the questions families and coastal readers often ask first.
How do you identify a garfish in the UK?
Look for a long, ribbon-thin body and a slender pointed beak like a miniature swordfish. The back has a greeny-blue sheen fading to a bright silver belly. At around 80cm but very slim, it is almost impossible to confuse with anything else.
Why do garfish bones turn green when cooked?
It comes down to a natural pigment in the skeleton called biliverdin. The vivid green is completely harmless and has no effect on the taste, so there is nothing to worry about. It is a quirk of the fish, not a sign of anything being wrong.
How do you fillet a garfish?
Run a sharp knife down each side of the long central backbone and the two slim fillets lift away cleanly. The frame is straightforward to remove, leaving almost no small bones, so it is an easier fish to prepare than its shape suggests.
Are garfish good to eat?
Yes, and they are one of the most underrated catches you can bring home over summer. The firm, meaty flesh suits a hot pan, the grill or the barbecue, and the fillets crumb and fry well with little fuss.
Are garfish sustainable?
Garfish are not a commercially pressured species and are listed as Least Concern, though they have never been formally stock-assessed. There are no size or bag limits in place, but the sensible habit is to take only what you will eat and return the rest.
When are garfish in season in Cornwall?
Garfish are a summer visitor, showing best through May and June as the seas warm and the mackerel shoals arrive. They hold in the top of the water around harbour walls and rock marks right through the warmer months.