Additional Offshore Species · Saltwater · 2026 season

| Where | Season | Size limit | Daily limit |
|---|---|---|---|
| State waters | Open year-round | No size limit | Private vessel: 10 per person, max 60 per trip. Headboat: 10 per paying person. |
Source: DNREC Division of Fish & Wildlife, captured 2026-09-20 (2026 season).
Say it, snap a photo, or type the length. SlotGauge answers KEEP or RELEASE using today's Delaware rules.
Open SlotGauge for DolphinfishSpecies of fish
The mahi-mahi, common dolphinfish, dolphinfish, dolphin or dorado is a surface-dwelling ray-finned fish found in off-shore temperate, tropical, and subtropical waters worldwide. It is one of two members of the family Coryphaenidae, the other being the pompano dolphinfish. These fish are most commonly found in the waters around the Gulf of Mexico, Costa Rica, Hawaii, and the Indian Ocean. In Italy it is called corifena, lampuga or pesce capone, and has even given its name to the caponata though eggplant has now taken the place of the fish.
Read more about Mahi-mahi on Wikipedia →
Text from Wikipedia, CC BY-SA 4.0. Regulations on this page come from DNREC Division of Fish & Wildlife, not Wikipedia.
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No size limit in Delaware state waters.
Private vessel: 10 per person, max 60 per trip. Headboat: 10 per paying person..
Open year-round.
Dolphinfish has no size limit today, with a daily limit of 10.