Atlantic Halibut vs Great Hammerhead Shark
Hippoglossus hippoglossus compared with Sphyrna mokarran
Taxonomy & Classification
| Attribute | Atlantic Halibut | Great Hammerhead Shark |
|---|---|---|
| Scientific Name | Hippoglossus hippoglossus | Sphyrna mokarran |
| Order | Pleuronectiformes | Carcharhiniformes |
| Family | Pleuronectidae | Sphyrnidae |
| Conservation Status | Endangered | Critically Endangered |
Physical Traits
| Attribute | Atlantic Halibut | Great Hammerhead Shark |
|---|---|---|
| Max Length | 470.0 cm | 610.0 cm |
| Max Weight | 320.0 kg | 580.0 kg |
| Color | Eyed side is olive-brown to dark greenish-brown with mottled paler blotches providing camouflage; blind underside is pure white; lateral line distinctly arched over the pectoral fin. | Brownish-gray to olive-gray dorsal surface with a clean countershaded white belly; no distinct patterning; first dorsal fin is tall and strongly falcate; pelvic fin tips dusky. |
Habitat & Environment
| Attribute | Atlantic Halibut | Great Hammerhead Shark |
|---|---|---|
| Water Type | Saltwater | Saltwater |
| Depth Range | 50-2000m | 1-300m |
| Geographic Range | North Atlantic from Labrador and Greenland east to Iceland, Norway, the Barents Sea, and the British Isles. Found on sandy and gravel bottoms at depths … | Circumtropical in warm coastal and offshore waters of the Atlantic, Indian, and Pacific oceans. Concentrates around coral reefs, continental shelf edges, and deep-water drop-offs; population … |
| Habitat | Neritic | Neritic |
Fishing Information
| Attribute | Atlantic Halibut | Great Hammerhead Shark |
|---|---|---|
| Game Fish | Yes | No |
| Fight Rating | 7/10 | — |
| World Record | — | — |
| Mercury Level | — | — |
Cuisine & Edibility
Atlantic Halibut
Firm, meaty white flesh with a mild, sweet flavor and very low fat. Endangered status — sustainable sourcing essential; superb pan-seared, poached in butter, or roasted with aromatics.
Great Hammerhead Shark
Critically Endangered — consumption strongly discouraged. Fins are historically traded but the species faces severe population decline; eating this fish is ecologically irresponsible.
Species Overview
Atlantic Halibut
The Atlantic halibut is the largest flatfish in the world, capable of exceeding 300 kg. Both eyes are on the right side of its body. It is a slow-growing, long-lived species that has suffered severe overfishing.
Great Hammerhead Shark
The great hammerhead is the largest of the nine hammerhead shark species. Its distinctive cephalofoil (hammer-shaped head) houses an array of electroreceptors that allow it to detect stingrays buried beneath the sand.