Fish / SPECIES GUIDE
Mahi-mahi
Dorado común
Coryphaena hippurus
At a glance
5–20 lb "schoolies"; bulls 30–50 lb.
Near-surface pelagic habitat is documented; a reliable numerical depth interval is unavailable in the sources reviewed.
Daylight surface feeding supports daytime observation and fishing where permitted; it does not prove an optimum hour.
27 areas
Know it
Spot it, size it up and learn its habits.
- Identification
A long dorsal fin extends almost the full length of the back and the tail is deeply forked. Adult males develop a blunt, high forehead.
- Physical appearance
Living fish flash blue-green along the back and gold or silver along the sides; these colors fade after death.
- Typical size
5–20 lb "schoolies"; bulls 30–50 lb.
- Maximum size
About 6.5 ft and 88 lb.
- Diet
Mainly fishes, with crustaceans and squid also eaten.
- Behavior
Young fish school; floating algae and other objects can concentrate fish. Feeding near the surface during daylight is documented.
Find it
Where, when and how deep to look.
- Where to find it
Found in Puerto Rico. Start around offshore current edges, weed lines, temperature/color changes, bait schools and legal FAD areas; then adjust to where bait and birds show active feeding. Habitat reference: Open-ocean surface waters, sometimes approaching shore; floating objects can attract groups.
- Habitat
Open-ocean surface waters, sometimes approaching shore; floating objects can attract groups.
- Depth
Near-surface pelagic habitat is documented; a reliable numerical depth interval is unavailable in the sources reviewed.
- Fishing depth
The cited approach is surface-oriented trolling; no fixed productive depth or trolling speed is established here.
- Fishing environments
Primarily offshore and pelagic, with occasional coastal approach. No freshwater or mangrove fishing recommendation is supported.
- Best season
Fish when local reports show bait and pelagic activity; in Puerto Rico these fisheries can be productive in multiple seasons rather than one universal peak.
- Best time
Daylight surface feeding supports daytime observation and fishing where permitted; it does not prove an optimum hour.
- Best tides
Offshore current edges, rips and convergences usually matter more than the tide table alone; fish the side holding bait.
- Best weather / conditions
Choose sea state, wind and visibility that let you hold position and handle the fish safely. Avoid treating rough weather as a feeding advantage.
Bait & gear
What to tie on and what to throw.
- Best bait
Ballyhoo, flying fish, squid and cut bait to keep a school near the boat.
- Best artificial lures
Skirted trolling lures, small feathers and bucktail jigs.
- Tackle setup
Hook-and-line gear is documented. Specific rod, reel and line ratings remain unavailable in this review.
- Hook size
About 4/0–7/0 is a common mahi bait-hook starting range, matched to bait size.
- Line
20–50 lb line is a practical mahi starting range; use heavier gear around large fish or rough offshore conditions.
- Leader
30–60 lb mono/fluorocarbon is a common mahi start; increase for abrasion or mixed wahoo water.
BigJoe's setup for Mahi-mahi
The rod, reel, line and lures BigJoe would use.
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Catch it
Step by step, from first cast to landing.
Step-by-step: how to catch it
- Start where the species is most likely to occur: Open-ocean surface waters, sometimes approaching shore; floating objects can attract groups.
- Rig for the habitat and current: Use a clean trolling or live-bait rig with minimal hardware, a strong swivel where needed and a leader long enough to protect against abrasion.
- Choose an offering that matches the fish and situation. Natural bait: Ballyhoo, flying fish, squid and cut bait to keep a school near the boat. Lures/alternatives: Skirted trolling lures, small feathers and bucktail jigs.
- Fish it with this starting approach: Troll weed lines, floating debris and birds at 6–8 knots; when a school shows, keep one hooked fish in the water and cast to the rest. Presentation: Keep trolling baits/lures tracking cleanly; with live bait, use the lightest practical weight and let the bait swim naturally.
- Use timing and water movement as adjustments, not guarantees. Time: Daylight surface feeding supports daytime observation and fishing where permitted; it does not prove an optimum hour. Tide/current: Offshore current edges, rips and convergences usually matter more than the tide table alone; fish the side holding bait.
- Fishing techniques
Troll weed lines, floating debris and birds at 6–8 knots; when a school shows, keep one hooked fish in the water and cast to the rest.
- Catch and release
Use wet hands, support the body horizontally and minimize air exposure. A dehooker reduces handling; cut the leader near a deeply swallowed hook.
Clean & cook
Is it good to eat, and how to prepare it.
- Edibility
Mahi-mahi has documented food use in the BigJoe catalog/source set. Freshness matters — keep it on ice, and watch for any toxin or mercury advisory.
- Table quality
NOAA describes mild, slightly sweet meat with a firm, lean texture and large flakes.
- Cleaning
Keep legally retained seafood chilled and separate raw seafood from ready-to-eat food. A species-specific cleaning procedure is not established here.
- Cooking suggestions
Cooking idea: bake or grill legally obtained portions. Cook seafood to 145°F / 63°C; use a food thermometer.
BigJoe’s island recipes
Real island cooking for this catch, each with its side dish.
Clean It & Choose Your Cut
Food safety: Food safety: keep seafood cold, prevent cross-contamination, wash hands and tools, and refrigerate promptly.
Recommended cuts
- Skin-on fillet
- Skinless fillet
- Whole cleaned fish
- Steaks for larger fish
Cleaning steps
- Keep the catch cold from the moment it is legally retained.
- Use a clean, stable cutting surface and a sharp dedicated fillet knife.
- Scale first if cooking the fish whole or keeping skin-on portions and the species has scales.
- For fillets, cut behind the gill plate toward the backbone, then follow the backbone toward the tail with controlled strokes.
- Trim ribs and remove pin bones where present; remove skin only if the recipe calls for it.
- Rinse only as needed to remove visible debris, then pat dry; keep the edible portion cold and cook or refrigerate promptly.
Anatomy varies by species. These are general finfish steps, not a species-specific anatomical guarantee.
How would you like it cooked?
Choose a style and open the full recipe.
Sushi & Japanese Raw/Cooked Options
A fully cooked fish roll with seasoned sushi rice, cucumber and scallion.
Cooked/seared fish served over seasoned rice with cucumber, scallion and sesame.
Eating it raw? Follow FDA raw-seafood safety advice — fresh off the boat isn't enough.
For raw slices, freeze the fish first or use very fresh, well-iced fish.
Stay safe & legal
Safety, rules and taking care of the fishery.
- Safety warnings
FOOD STORAGE HAZARD — if this fish is not promptly and properly chilled after catch, histamine/scombrotoxin can form. Cooking, freezing or smoking does not reliably destroy the toxin once formed.
- Regulations
Rules: Dolphinfish / mahi-mahi — federal recreational limits: 24 in fork length minimum; 5 per person per day, not to exceed 15 per vessel per day, whichever is less.. Applies in the EEZ around Puerto Rico. Check current accountability closures and HMS requirements when applicable. | Mahi-mahi — Puerto Rico daily quota: 10 per person per day / 30 per vessel per day. Puerto Rico territorial quota from DRNA quick guide. Seasonal closures, size rules, HMS requirements, and later orders may also apply. | Current NOAA federal Caribbean rule (effective July 25, 2025): 24 in fork-length minimum; around Puerto Rico, recreational bag 5 per person/day and no more than 15 per vessel/day, whichever is less.
- Conservation
Its broad distribution does not establish the condition of every local stock. Retain only fish allowed by the rules for the actual fishing area.
Where it's found & local rules
Tap an island for local spots and rules.
Sources & photo credits
Sources
- BigJoe Caribbean species list and local rule sources
- NOAA-hosted scientific report — Caribbean FAD lure trials, pp. 11–14
- FAO Western Central Atlantic, volume 3, PDF pages 58
- FDA — Selecting and serving seafood safely
- FWC — Fish handling and gear
- NOAA Fisheries — Atlantic mahi mahi
- Common Caribbean fishing know-how — a good starting point, not a legal rule.
- Smithsonian STRI Shorefishes of the Greater Caribbean — Caribbean biology reference system used for cross-checking.
- NOAA Fisheries — current U.S. Caribbean rules/closures · NOAA — current dolphin/wahoo Caribbean rule · Puerto Rico DRNA — current territorial rules
- FishBase — Coryphaena hippurus species record
- CDC Yellow Book — Scombroid (histamine) fish poisoning
- FDA — Scombrotoxin poisoning and decomposition
Other names: No synonyms recorded.
Tips marked as common know-how come from everyday Caribbean fishing. They're a starting point — not a safety check, a permit or a guaranteed catch.