Atlantic Bluefin Tuna vs Summer Flounder
Thunnus thynnus compared with Paralichthys dentatus
Taxonomy & Classification
| Attribute | Atlantic Bluefin Tuna | Summer Flounder |
|---|---|---|
| Scientific Name | Thunnus thynnus | Paralichthys dentatus |
| Order | Scombriformes | Pleuronectiformes |
| Family | Scombridae | Paralichthyidae |
| Conservation Status | Least Concern | Least Concern |
Physical Traits
| Attribute | Atlantic Bluefin Tuna | Summer Flounder |
|---|---|---|
| Max Length | 458.0 cm | 94.0 cm |
| Max Weight | 680.0 kg | 12.0 kg |
| Color | Dark metallic blue-black back with a bright silvery-white lower belly; upper flanks show iridescent blue and green tones; short yellow finlets have black margins; second dorsal and pectoral fins dark. | Eyed side is brownish to gray-green with a mottled pattern of pale blotches; 12–14 distinct pale-edged dark ocelli (eyespots) scattered across the body; blind side is plain white; color changes with substrate. |
Habitat & Environment
| Attribute | Atlantic Bluefin Tuna | Summer Flounder |
|---|---|---|
| Water Type | Saltwater | Saltwater |
| Depth Range | 0-985m | 10-183m |
| Geographic Range | North Atlantic Ocean from the Gulf of Mexico and Caribbean north to Norway and Iceland, including the Mediterranean and Black seas. Two spawning populations: western … | Western North Atlantic from Nova Scotia south to Florida and the northern Gulf of Mexico. Undertakes seasonal offshore migration to deeper Continental Shelf waters in … |
| Habitat | Open ocean in the Atlantic, Mediterranean, and Black Sea. Highly migratory, ranging from temperate to subtropical surface waters (0-100m, optimum 15-25°C). Aggregates seasonally to feed … | Neritic, demersal, estuaries |
Fishing Information
| Attribute | Atlantic Bluefin Tuna | Summer Flounder |
|---|---|---|
| Game Fish | Yes | Yes |
| Fight Rating | 10/10 | 4/10 |
| World Record | — | — |
| Mercury Level | — | — |
Cuisine & Edibility
Atlantic Bluefin Tuna
The pinnacle of raw fish dining — intensely rich, fatty tuna-o-toro with deep red color and buttery, umami-forward flavor. Commands the highest prices globally in Japanese sushi markets.
Summer Flounder
Thin, delicate white fillets with a sweet, mild flavor and very low fat. Prized on the U.S. East Coast; superb pan-fried in butter, stuffed and baked, or prepared as ceviche.
Species Overview
Atlantic Bluefin Tuna
The Atlantic bluefin tuna is one of the largest bony fish, capable of crossing the Atlantic in under 60 days. A single specimen has sold for over $3 million at Tokyo's fish market. It can maintain a body temperature above the surrounding water.
Summer Flounder
The summer flounder, or fluke, is a flatfish that lies camouflaged on the ocean floor. Born with eyes on both sides, one eye migrates to the left side during development. An ambush predator, it explodes upward to grab passing prey.