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💧 Freshwater Near Threatened 🐠 Aquarium 🌡️ Temperate

Kyushu bitterling

Rhodeus atremius Jordan & Thompson, 1914
Max Length
6 cm
Max Weight
-
Lifespan
-
Trophic Level
2.7
Depth
-
Climate
Temperate
Resilience
High
Vulnerability
20.00/100
Typical Length
-
Depth Zone
-

📖 Overview

The Kyushu bitterling is a temperate freshwater ray-finned fish belonging to the family Acheilognathidae, the bitterlings. It originates on Kyushu Island in Japan. It was originally described as Acanthorhodeus atremius by Jordan & Thompson in 1914. The fish reaches a size of up to 6 cm (2.5 in), and is native to freshwater habitats with a pH of 6.8 to 7.8, a hardness of 20 DH, and a temperature of 10 to 25 °C.

Scientific Name
Rhodeus atremius
Authority
Jordan & Thompson, 1914
Habitat
Freshwater
Climate
Temperate
IUCN Status
NT
Max Length
6 cm
Trophic Level
2.7
Resilience
High
Vulnerability
20.00/100
Water Temp
10–25 °C
Salinity
0–0.5 ppt

🔬 Taxonomy

🐟 Physical Description

Physical description for Kyushu bitterling is currently being compiled.

🌀 Behaviour

Behavioural data for Kyushu bitterling is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

Female has an ovipositor which is used to deposit eggs inside bivalves. Young remain in the bivalve until they can swim .

🌍 Habitat & Distribution

Freshwater; benthopelagic; pH range: 6.8 - 7.8; dH range: ? - 20. Temperate; 10°C - 25°C

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
2.7±0.2

📐 Morphometrics

Length–Weight Relationship: W = 0.0166 × L3.02 (TL)
Max TL
6cm

🌡️ Water Parameters & Tolerance

Temperature Range
10–25°C
pH Range
6.8–7.8
Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Near Threatened
Assessment Date
2018

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
20.00/100
Low vulnerability
Trophic Level
2.7
Omnivore / Planktivore
Climate Zone
Temperate
Described By
Jordan & Thompson, 1914

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Kyushu Bitterling · Suigen Zenitanago
🌍CES Hořavka Japonská
🇩🇪German Japanisher Bitterling
🇫🇮Finnish Japaninkatkerokala
🇯🇵Japanese Kazetogetanago · カゼトゲタナゴ
🇰🇷Korean 큐슈납줄개

Scientific Synonyms

Scientific Name Author Year Status
Acanthorhodeus atremius Jordan & Thompson 1914 Synonym

📚 Scientific References

13 publications cited

General
  1. Froese, R. and Pauly, D. (Editors) (2024). FishBase. World Wide Web electronic publication. FishBase Consortium. Link ↗
Conservation
  1. IUCN (2024). The IUCN Red List of Threatened Species. Version 2024-1. International Union for Conservation of Nature. Link ↗
Taxonomy
  1. GBIF Secretariat (2024). GBIF Backbone Taxonomy. Checklist dataset. Global Biodiversity Information Facility. DOI ↗
Nutrition
  1. USDA Agricultural Research Service (2024). FoodData Central. USDA National Nutrient Database. United States Department of Agriculture. Link ↗
Fishery
  1. NOAA Fisheries (2024). FishWatch: U.S. Seafood Facts. National Oceanic and Atmospheric Administration. Link ↗
  2. Monterey Bay Aquarium (2024). Seafood Watch Recommendations. Monterey Bay Aquarium Foundation. Link ↗
Aquaculture
  1. FAO Fisheries and Aquaculture Department (2024). The State of World Fisheries and Aquaculture. Food and Agriculture Organization of the United Nations. Link ↗
Distribution
  1. Kaschner, K., Kesner-Reyes, K., Garilao, C., Segschneider, J., Rius-Barile, J., Rees, T., Froese, R. (2024). AquaMaps: Predicted range maps for aquatic species. AquaMaps. Link ↗
Ecology
  1. Nelson, J.S., Grande, T.C., Wilson, M.V.H. (2016). Fishes of the World. 5th edition. John Wiley & Sons.
Behavior
  1. Helfman, G.S., Collette, B.B., Facey, D.E., Bowen, B.W. (2009). The Diversity of Fishes: Biology, Evolution, and Ecology. 2nd edition. Wiley-Blackwell.
Morphology
  1. Froese, R. (2006). Cube law, condition factor and weight-length relationships: history, meta-analysis and recommendations. Journal of Applied Ichthyology, 22(4), 241-253. DOI ↗
Toxicology
  1. Halstead, B.W., Auerbach, P.S., Campbell, D. (1988). A Colour Atlas of Dangerous Marine Animals. Wolfe Medical Publications. Wolfe Medical.
Reproduction
  1. Balon, E.K. (1975). Reproductive Guilds of Fishes: A Proposal and Definition. Journal of the Fisheries Research Board of Canada, 32(6), 821-864.

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 10 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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