Summer Flounder vs Swordfish
Paralichthys dentatus compared with Xiphias gladius
Taxonomy & Classification
| Attribute | Summer Flounder | Swordfish |
|---|---|---|
| Scientific Name | Paralichthys dentatus | Xiphias gladius |
| Order | Pleuronectiformes | Istiophoriformes |
| Family | Paralichthyidae | Xiphiidae |
| Conservation Status | Least Concern | Least Concern |
Physical Traits
| Attribute | Summer Flounder | Swordfish |
|---|---|---|
| Max Length | 94.0 cm | 455.0 cm |
| Max Weight | 12.0 kg | 650.0 kg |
| Color | 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. | Dark brown to blackish-purple back contrasting sharply with a pale cream-white belly; sides are dull bronze-brown; large crescent-shaped tail fin is dark; skin scaleless and leathery. |
Habitat & Environment
| Attribute | Summer Flounder | Swordfish |
|---|---|---|
| Water Type | Saltwater | Saltwater |
| Depth Range | 10-183m | 0-2878m |
| Geographic Range | 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 … | Cosmopolitan in temperate and tropical oceans worldwide, including the Mediterranean Sea, Atlantic, Indian, and Pacific oceans. Makes deep vertical migrations between surface feeding and depths … |
| Habitat | Neritic, demersal, estuaries | Oceanic and neritic zones worldwide in temperate and tropical seas; surface to 650m. Highly migratory, following prey into cold, productive upwelling zones. Rarely found near … |
Fishing Information
| Attribute | Summer Flounder | Swordfish |
|---|---|---|
| Game Fish | Yes | Yes |
| Fight Rating | 4/10 | 9/10 |
| World Record | — | — |
| Mercury Level | — | — |
Cuisine & Edibility
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.
Swordfish
Dense, meaty flesh with a mild, slightly sweet flavor; moderate fat and steak-like texture. Ideal for grilling, broiling, or searing; pairs well with lemon-herb or citrus salsas.
Species Overview
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.
Swordfish
The swordfish is a highly migratory pelagic predator recognized by its long, flat, pointed bill. It can dive to depths exceeding 2,800 meters and possesses a specialized organ that heats its eyes and brain for improved vision in cold, deep water.