Japanese huchen
📖 Overview
Adults usually inhabit lower and middle reaches of rivers and lakes. A sea-run form is found in the eastern coast of Hokkaido. Young feed mainly on aquatic insects while fishes more than 30 cm are completely piscivorous. Mature individuals spawn in spring in river branches, where the female lays 2,000-10,000 eggs on sandy or gravelly bottom.
🔬 Taxonomy
🐟 Physical Description
: fusiform / normal.
🌀 Behaviour
Behavioural data for Japanese huchen is currently being reviewed.
🦐 Diet
🥚 Reproduction
🌍 Habitat & Distribution
Marine; freshwater; brackish; benthopelagic; anadromous ; depth range 0 - 100 m . Temperate; 50°N - 42°N Northwest Pacific: Sea of Japan, from southern Kuril Islands and Primorskii Krai, Russia to Hokkaido.
🌿 Ecology
aquatic insects while fishes more than 30 cm are completely piscivorous
📐 Morphometrics
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
🎣 Angling Guide
- medium-action 8-9ft fly rod
- 5-8 lb tippet
- floating or sinking-tip line
- seams and current breaks in rivers
- tributary mouths
- undercut banks
- deep pools during high sun
Use barbless hooks, minimise air exposure, and revive fish head-first in current before release.
⚠️ Strict bag and size limits vary by jurisdiction. Barbless hooks required in many rivers.
📊 Population Dynamics
| Year | Region | Index | Notes |
|---|---|---|---|
| - | - | - |
🌐 Names & Taxonomy
| Language | Common Names |
|---|---|
| 🇬🇧English | Ito · Japanese Huchen · Sakhalin Taimen · Sea-run Taimen · Stringfish |
| 🌍BEL | Сахалінскі таймень |
| 🌍CES | hlavatka japonská |
| 🇩🇪German | Japanischer Huchen |
| 🇫🇮Finnish | japaninjokilohi |
| 🇯🇵Japanese | Ito · イトウ |
| 🇵🇱Polish | czewica |
| 🇷🇺Russian | Гой · Сахалинский таймень · Чеви́ца |
| 🇪🇸Spanish | Trucha de Sajalín |
| 🇨🇳Chinese | 遠東哲羅魚 |
Scientific Synonyms
| Scientific Name | Author | Year | Status |
|---|---|---|---|
| Hucho perryi | Brevoort | 1856 | Synonym |
| Salmo blackistoni | Hilgendorf | 1876 | Synonym |
| Salmo perryi | Brevoort | 1856 | Synonym |
🔍 Similar Species
🗺️ Global Occurrence Map
Occurrence records from the Global Biodiversity Information Facility (GBIF) - 2 records indexed .
👥 Community & Contribute
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