Great Hammerhead Shark vs Oscar

Sphyrna mokarran в сравнении с Astronotus ocellatus

Taxonomy & Classification

Характеристика	Great Hammerhead Shark	Oscar
Научное название	Sphyrna mokarran	Astronotus ocellatus
Отряд	Carcharhiniformes	Cichliformes
Семейство	Sphyrnidae	Cichlidae
Conservation Status	Critically Endangered	Least Concern

Physical Traits

Характеристика	Great Hammerhead Shark	Oscar
Максимальная длина	610,0 cm	45,0 cm
Максимальный вес	580,0 kg	1,6 kg
Окраска	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.	Dark olive-brown to blackish body with irregular wavy orange-red markings forming a marbled or reticulated pattern; prominent black ocellus with orange ring at the upper tail base.

Habitat & Environment

Характеристика	Great Hammerhead Shark	Oscar
Тип воды	Saltwater	Freshwater
Диапазон глубин	1-300m	—
Ареал обитания	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 …	Native to the Amazon and Orinoco river basins in South America, including Peru, Colombia, and Brazil. Inhabits slow, deep, turbid rivers, flooded forests, and large …
Среда обитания	Neritic	Slow-moving rivers and floodplains of the Amazon and Orinoco basins, South America. Warm, murky water (22-28°C, pH 6-8). Inhabits areas with submerged logs and dense …

Aquarium Suitability

Характеристика	Great Hammerhead Shark	Oscar
Минимальный объём аквариума	—	280 L
Температура	—	22-25
Диапазон pH	—	6.0-8.0
Уровень сложности содержания	—	Moderate
Темперамент	—	Aggressive

Информация о рыболовстве

Характеристика	Great Hammerhead Shark	Oscar
Спортивная рыба	Нет	Да
Боевой рейтинг	—	—
Мировой рекорд	—	—
Содержание ртути	—	—

Cuisine & Edibility

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.

Oscar

Not consumed — popular ornamental cichlid kept for its bold patterning and personality; occasionally eaten in parts of South America but primarily an aquarium species.

Species Overview

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.

Oscar

The oscar is a large, intelligent cichlid native to the Amazon basin. Known for its dog-like personality, it can recognize its owner and may beg for food. Oscars rearrange their tank decor and require spacious aquariums with robust filtration.