Discusディスカス

Symphysodon discusLC— Least Concern

The discus is a round, laterally flattened cichlid native to the Amazon River basin, prized in the aquarium hobby for its vivid color varieties and gentle, social temperament. Uniquely among most fish, discus fry feed on a nutrient-rich mucus called "discus milk" secreted from their parents' skin, and the species has become the centerpiece of a major breeding and show industry across Asia.

Discus (reference photo)
Photo: Doronenko / CC BY 3.0 / Source / cropped

Species Data

Classification
Perciformes / Cichlidae Source
Distribution
Native to the Amazon River basin, with different species occupying the eastern Amazon, western Amazon, and the Rio Negro and its tributaries. Source

Did You Know?

  • For the first several weeks of life, fry feed exclusively on a mucus secretion called "discus milk" produced by their parents' skin, a behavior shared by more than 30 cichlid species but most famously associated with discus. Source
  • Unusually among American cichlids, discus are highly social fish that typically form groups numbering in the dozens. Source

Where to See This Species

1 facilities · 0 individuals

ふくしま海洋科学館 (Fukushimakaiyoukagakukan)FukushimaOpened in 2000

ふくしま海洋科学館のWikipedia記事に飼育種として記載 Source

Conservation Story

Conservation Status

Symphysodon discusはIUCNでLCとされています。

Habitat

南米アマゾン川流域の温暖な淡水域。

Threats

  • 森林減少に伴う水域環境の変化
  • 水質悪化

Conservation & Breeding Efforts

  • 飼育下繁殖による観賞魚需要への対応
  • 原産地の水域と森林の保全

Sources

en.wikipedia.org

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FAQ

What is "discus milk"?
It is a nutrient-rich mucus secreted from the skin of adult discus that their fry feed on exclusively for the first few weeks of life, a parental care strategy shared by only a small number of cichlid species. Source
How long do discus fish live in an aquarium?
With good care, discus typically live around 10 years in captivity, and some individuals live as long as 15 years. Source

Source: ja.wikipedia.org en.wikipedia.org