Discus vs речной угорь

Symphysodon discus в сравнении с Anguilla anguilla

Taxonomy & Classification

Характеристика	Discus	речной угорь
Научное название	Symphysodon discus	Anguilla anguilla
Отряд	Cichliformes	Elopomorpha
Семейство	Cichlidae	Megalopidae
Conservation Status	Least Concern	Critically Endangered

Physical Traits

Характеристика	Discus	речной угорь
Максимальная длина	20,0 cm	133,0 cm
Максимальный вес	0,25 kg	6,6 kg
Окраска	Deep-bodied disc shape with vibrant turquoise-blue wavy horizontal lines over a reddish-brown to orange-brown base; fins edged in vivid blue with red striping; wild forms show 9 dark vertical bars.	Yellow-olive to olive-brown back and sides in the freshwater 'yellow eel' phase; maturing 'silver eel' phase develops a dark gray-black back with a silvery-white belly and enlarged eyes.

Habitat & Environment

Характеристика	Discus	речной угорь
Тип воды	Freshwater	Freshwater & Saltwater
Диапазон глубин	—	0-700m
Ареал обитания	Restricted to the central Amazon River basin in Brazil, particularly around the confluence of the Rio Negro and Rio Solimões. Prefers warm, soft, highly acidic …	Spawns in the Sargasso Sea and larvae drift to European and North African coasts on the Gulf Stream. Adults inhabit rivers, lakes, and coastal waters …
Среда обитания	Warm, blackwater rivers of the Amazon basin, particularly the Rio Negro and tributaries. Prefers soft, acidic water (pH 4.5-6.5, 26-31°C) with driftwood and minimal current. …	Estuaries

Aquarium Suitability

Характеристика	Discus	речной угорь
Минимальный объём аквариума	250 L	—
Температура	26-30	—
Диапазон pH	5.0-7.0	—
Уровень сложности содержания	Difficult	—
Темперамент	Peaceful	—

Информация о рыболовстве

Характеристика	Discus	речной угорь
Спортивная рыба	Нет	Да
Боевой рейтинг	—	—
Мировой рекорд	—	—
Содержание ртути	—	—

Cuisine & Edibility

Discus

Not consumed — a prized ornamental aquarium fish known as the 'king of the aquarium' for its disc-shaped body and brilliant colors.

речной угорь

Rich, fatty flesh with a distinctive earthy flavor; classically smoked, jellied (in Britain), or grilled kabayaki-style. Critically Endangered — consumption strongly discouraged; population down 90%.

Species Overview

Discus

The discus is often called the 'King of the Aquarium' for its disc-shaped body and stunning color patterns. Native to the Amazon floodplains, it requires warm, soft, acidic water and feeds its fry with a mucus secretion from its skin.

речной угорь

The European eel undertakes one of nature's most remarkable migrations, traveling 5,000 km from European rivers to the Sargasso Sea to spawn and die. Despite centuries of study, its breeding grounds were only recently confirmed.