Pirarucu vs Grand requin marteau

Arapaima gigas comparé à Sphyrna mokarran

Taxonomy & Classification

Attribut	Pirarucu	Grand requin marteau
Nom scientifique	Arapaima gigas	Sphyrna mokarran
Ordre	Osteoglossiformes	Carcharhiniformes
Famille	Arapaimidae	Sphyrnidae
Conservation Status	Data Deficient	Critically Endangered

Physical Traits

Attribut	Pirarucu	Grand requin marteau
Longueur maximale	450,0 cm	610,0 cm
Poids maximum	200,0 kg	580,0 kg
Couleur	Dark olive-gray to grayish-black back with large scales that become vivid red-orange with black borders on the posterior flanks; belly pale cream; caudal fin reddish and rounded.	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

Attribut	Pirarucu	Grand requin marteau
Type d'eau	Freshwater	Saltwater
Plage de profondeur	—	1-300m
Aire de répartition	Restricted to the Amazon River basin in Brazil, Peru, Guyana, and Bolivia. Inhabits flooded várzea lakes, oxbows, and large river channels; surfaces frequently to breathe …	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	Floodplain lakes (várzea) and large river channels of the Amazon basin. Slow-moving, shallow, warm freshwater (26-30°C). An obligate air-breather; rises to surface to gulp air. …	Neritic

Informations sur la pêche

Attribut	Pirarucu	Grand requin marteau
Poisson de pêche sportive	Oui	Non
Cote de combativité	10/10	—
Record du monde	—	—
Teneur en mercure	—	—

Cuisine & Edibility

Pirarucu

Large, firm white fillets with a mild, clean flavor and low fat; historically a staple protein in Amazonian communities. Often salted and dried; sustainable harvest is tightly regulated.

Grand requin marteau

Critically Endangered — consumption strongly discouraged. Fins are historically traded but the species faces severe population decline; eating this fish is ecologically irresponsible.

Species Overview

Pirarucu

The arapaima is one of the largest freshwater fish in the world, reaching up to 4.5 meters. An obligate air-breather, it must surface every 10-20 minutes to gulp air. Its tongue is bony and used to crush prey against the roof of its mouth.

Grand requin marteau

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.