Twenty-two to twenty-eight degrees is the guide, which puts the season from summer into autumn. Unlike other groupers it likes rock that meets sand, and because it chases baitfish up into midwater it will feed in broad daylight while the water is warm.
About
A grouper covered all over with angular brown blotches. The edge of its tail fin is white.
Basics
Scientific name
Epinephelus areolatus
Family
Epinephelidae (Groupers)
Japanese name
オオモンハタ
Kana
おおもんはた
Waters
Southern Pacific coast
Size
35 cm (max 55 cm)
Time of day
Dawn, Daytime, Dusk
Depth (tana)
From the bottom into midwater. Most takes come three to five metres above the seabed after the lure has landed, so hammering the bottom alone will not produce.
Sink a shad-tail soft plastic to the bottom and simply wind it back at a constant speed; there is no need to work it. Change the angle each cast so the lure crosses the line where rock meets sand from a different direction.
From a boat the drift runs over isolated rock in sandy ground. Take the jig up about ten one-pitch turns from the bottom, then drop it back if nothing comes. With this fish, not being afraid to leave the bottom is the point.
Waters: Southern Pacific coast
Kit for this fish
Shore jigging kit ・ Kit total ¥40,000–100,000
Shore jigging rod, 10 ft, MHLong and powerful enough to cast 40-60 g jigs and to absorb the runs of a hooked jack.¥12,000–40,000AdFind on AmazonFind on Rakuten
Spinning reel, size 4000-5000For shore jigging. A smooth drag under a running fish matters more than anything here, so this is not the place to economise.¥10,000–35,000AdFind on AmazonFind on Rakuten
PE braid, 1.5-2 gouFor shore jigging: the compromise between casting distance and strength.¥2,000–6,000AdFind on AmazonFind on Rakuten
Fluorocarbon leaderThe clear line tied to the end of the braid. It resists abrasion and is less visible, protecting the braid from rock and teeth.¥800–3,000AdFind on AmazonFind on Rakuten
Metal jig, 30-60 gThe mainstay of shore jigging. Carry the same shape in several weights and switch with wind and current.¥600–2,500AdFind on AmazonFind on Rakuten
Landing net with 5 m handlePiers sit high above the water and heavy fish break off if you lift them. Having one changes what you land.¥4,000–20,000AdFind on AmazonFind on Rakuten
Fishing pliers / hook removerEssential protection from venomous spines and sharp teeth. Most injuries happen when someone unhooks a fish bare-handed.¥800–4,000AdFind on AmazonFind on Rakuten
Knife and spike for bleeding fishWhat turns a caught fish into good food; bleeding it changes the taste. See the column "Killing and carrying your catch" for how to use them.¥1,000–6,000AdFind on AmazonFind on Rakuten
Cool box, 15-20 LFor carrying fish home cold. Take plenty of ice; in summer a poorly insulated box is not fit for the job.¥4,000–25,000AdFind on AmazonFind on Rakuten
Life jacket, adult (Japan Craft Inspection approved)The first thing to buy, and worn on piers, rocks and boats alike. Boat fishing requires the government-approved type marked with the cherry-blossom stamp.¥5,000–20,000AdFind on AmazonFind on Rakuten
Studded or felt-soled bootsOrdinary shoes slip on rock and tetrapods. Falls are the most common cause of accidents, so these are mandatory for rocky shores.¥4,000–15,000AdFind on AmazonFind on Rakuten
You will often be on rocks or the tip of a breakwater at dawn, where safety gear matters more than results. Do not go alone.
Product links may be affiliate links. Prices move, so treat the ranges as a guide.
The dorsal spines and gill covers are hard and sharp. No venom is recorded, but pinning a thrashing fish bare-handed will cut you. Clamp the jaw with a grip and remove the hook with pliers.
This article organises general information and is not legal advice. Rules differ by municipality and by fishery cooperative, and they change. Always check the current rules for where you are going.
Seasons, sizes and eating quality are general guides. Rules change, so check the latest prefectural, fishery-cooperative and site rules before fishing. This app provides general information, not legal advice.
