Roi on the spear — invasive peacock grouper removed from a Kona reef
FISH ID · EVERY DIVE STARTS HERE

What fish do we
target in Hawai‘i?

Not every fish on the reef is fair game — and which fish we hunt is the whole point. We target the invaders that damage the reef and leave the natives that keep it healthy.

What fish can you spear in Hawai‘i? On guided Kona dives, Top Shot Spearfishing primarily targets invasive species — roi (peacock grouper), to‘au (blacktail snapper), and ta‘ape (bluestripe snapper) — whose removal directly helps native reefs, plus select native food fish like uku taken within all State of Hawai‘i regulations. A single invasive roi eats roughly 150 native reef fish per year, which is why it’s priority target #1 on every dive.
1 INVASIVE ROI = ≈150 NATIVE REEF FISH EATEN / YEAR
WHY ROI ARE PRIORITY #1 ON EVERY DIVE
THE TARGETS

Know them before you hunt them

Catch & Cook RecipesRegulations Cheat SheetCiguatera Guide
RoiRoi — peacock grouper

Roi

Peacock grouper · Cephalopholis argus

Introduced to Hawai‘i in the 1950s, a single roi eats roughly 150 native reef fish per year. We remove every one we can — but never eat them due to ciguatera risk. Removed roi become organic fertilizer through our Reef-to-Root program.

INVASIVE · PRIORITY TARGETFull species guide →
To‘auTo‘au — blacktail snapper

To‘au

Blacktail snapper

An introduced snapper competing with native species for food and habitat. The upside: it’s delicious, and every one removed helps the reef.

INVASIVE · EXCELLENT EATINGFull species guide →
Ta‘apeTa‘ape — bluestripe snapper

Ta‘ape

Bluestripe snapper

Introduced in the same era as the roi, ta‘ape school in large numbers across Kona’s reefs. Great first target for new hunters — and great on the table.

INVASIVE · EXCELLENT EATINGFull species guide →
UkuUku — green jobfish

Uku

Green jobfish

A prized native snapper taken selectively and within all state regulations. One of Hawai‘i’s finest eating fish.

NATIVE · PRIZED TABLE FISHFull species guide →
UmaumaleiUmaumalei — orangespine unicornfish

Umaumalei

Orangespine unicornfish

A traditional Hawaiian food fish taken selectively. Your guide will teach you when a fish is a target — and when it isn’t.

NATIVE · SELECT HARVESTFull species guide →
GO DEEPER

Prized natives & bluewater

UhuUhu — parrotfish

Uhu

Parrotfish · Scarus rubroviolaceus

Colorful and abundant on Big Island reefs, Uhu are a staple spearfishing target. The terminal phase males (large, brightly colored) are the most sought after. Excellent eating — firm white flesh with a mild, sweet flavor.

How we hunt them: Uhu are often found grazing on algae-covered rock and coral. They are not particularly wary but will spook if approached too quickly. Look for them in 10–30 ft on lava reef. Aim for the head/spine for a clean shot.

DEPTH 5–60 FT · SEASON YEAR-ROUND · BEGINNER
NATIVE · STAPLE TARGETFull species guide →
KumuKumu — Whitesaddle Goatfish

Kumu

Whitesaddle Goatfish · Parupeneus porphyreus

The red-and-white kumu is one of Hawaii's most prized eating fish. Found on sandy bottoms and reef edges, they use their chin barbels to probe the sand for prey. Highly sought after — considered a delicacy in Hawaiian cuisine.

How we hunt them: Kumu are found on sandy patches near the reef, often in small groups. They are skittish — approach slowly from above and wait for them to settle. Best hunted at dawn when they are actively feeding. A short, accurate shot is key.

DEPTH 10–80 FT · SEASON YEAR-ROUND · INTERMEDIATE
NATIVE · PRIZED TABLE FISHFull species guide →
'Ōmilu'Ōmilu — Bluefin Trevally

'Ōmilu

Bluefin Trevally · Caranx melampygus

The electric-blue spotted trevally is one of Hawaii's most beautiful reef fish. Smaller than Ulua but equally aggressive, 'Ōmilu are found throughout the reef and are excellent table fare. A great target for intermediate spearfishers.

How we hunt them: Often found hunting in pairs or small groups along the reef. They respond well to flashers and are less wary than Ulua. Target sandy patches adjacent to reef structure where they ambush prey.

DEPTH 5–80 FT · SEASON APR–NOV · INTERMEDIATE
NATIVE · INTERMEDIATE TARGETFull species guide →
UluaUlua — Giant Trevally

Ulua

Giant Trevally · Caranx ignobilis

The ultimate Big Island trophy fish. Giant Trevally are powerful, fast, and highly prized by spearfishers. They patrol reef edges, channel drop-offs, and open water. Require stealth and a well-placed shot — they will test your gear.

How we hunt them: Approach from down-current and use the reef structure as cover. Ulua are curious — a slow, deliberate approach often works better than chasing. Target the channel edges at dawn and dusk. Use a reel gun with 200+ lb shooting line for large fish.

DEPTH 5–100 FT · SEASON MAY–OCT · ADVANCED
NATIVE · THE TROPHYFull species guide →
KahalaKahala — amberjack

Kahala

Amberjack / Yellowtail · Seriola dumerili

A large, powerful pelagic species found around offshore structure and seamounts. Kahala are aggressive hunters and will follow other fish to the surface. Excellent eating when bled immediately. Can carry ciguatera — check local advisories.

How we hunt them: Kahala are often found with other large pelagics. They are bold and will approach divers. Use a reel gun with strong line. Bleed immediately after the shot to improve flavor and reduce any toxin concentration. Best hunted from a boat at offshore structure.

DEPTH 20–200 FT · SEASON MAY–OCT · ADVANCED
ADVANCED · CIGUATERA CAUTIONFull species guide →
'Ono'Ono — Wahoo

'Ono

Wahoo · Acanthocybium solandri

One of the fastest fish in the ocean. 'Ono are razor-toothed pelagic hunters found in open water and around offshore structure. Exceptional eating — some say the best fish in Hawaii. Extremely challenging to spear due to their speed.

How we hunt them: 'Ono are extremely fast and require a perfectly timed shot. They often make a single pass — be ready. Use a reel gun with heavy line. They have razor-sharp teeth — handle with care. Best hunted from a boat at offshore structure in fall and winter.

DEPTH SURFACE–100 FT · SEASON OCT–MAR · ADVANCED
BLUEWATER · ADVANCEDFull species guide →
Mahi-MahiMahi-Mahi — Dolphinfish

Mahi-Mahi

Dolphinfish · Coryphaena hippurus

A spectacular pelagic species with brilliant colors. Mahi-Mahi are fast, acrobatic, and excellent eating. Found in open water around floating debris, weed lines, and offshore structure. Best hunted from a boat.

How we hunt them: Mahi-Mahi are found around floating debris and weed lines offshore. They are curious and will often circle a diver. Use a long gun with a reel. They are fast — lead the shot slightly. Best hunted from a boat in the spring and summer months.

DEPTH SURFACE–60 FT · SEASON APR–AUG · ADVANCED
BLUEWATER · ADVANCEDFull species guide →
ETHICS

How we hunt responsibly

We strictly follow all State of Hawai‘i size and bag regulations — and go further. Just because a species isn’t regulated yet doesn’t mean it shouldn’t be.

Fish identification comes before anyone takes a shot. Your guide is in the water with you and confirms every target, so you’ll always know what you’re looking at and why it is — or isn’t — a target.

Reef to Root: where the roi go →
Selective hunting over Big Island reef
QUESTIONS

Fish FAQ

Do I need to identify fish myself?

No — your guide confirms every target before you shoot. Fish ID is part of what you’ll learn.

Can we eat what we catch?

Most target species like to‘au, ta‘ape, and uku are excellent eating. The exception is roi, which we remove for the reef’s sake but never consume due to ciguatera risk. Everything else you spear is yours to take home — we clean it, bag it, and send you off with a good recipe. The roi we remove goes to Kona Coast Nutrients and becomes organic fish-hydrolysate fertilizer. Nothing wasted.

Is spearfishing legal in Hawai‘i?

Yes — spearfishing while freediving is legal and deeply rooted in Hawaiian tradition. We operate under commercial licenses and follow all state regulations.

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