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💧 Freshwater Vulnerable 🐠 Aquarium 🌡️ Temperate

Rhodeus Pseudosericeus

Rhodeus pseudosericeus Arai, Jeon & Ueda, 2001
Max Length
6.1 cm
Max Weight
-
Lifespan
-
Trophic Level
2.6
Depth
-
Climate
Temperate
Resilience
High
Vulnerability
25.00/100
Typical Length
-
Depth Zone
pelagic

📖 Overview

Rhodeus Pseudosericeus (Rhodeus pseudosericeus) is a ray-finned fish of the family Cyprinidae. It inhabits freshwater waters in pelagic environments. This species can reach a maximum total length of 6.1 cm. With a trophic level of 2.6, it is an omnivore, consuming both plant and animal matter. It is assessed as Vulnerable on the IUCN Red List.

Scientific Name
Rhodeus pseudosericeus
Authority
Arai, Jeon & Ueda, 2001
Habitat
Freshwater
Climate
Temperate
IUCN Status
VU
Max Length
6.1 cm
Trophic Level
2.6
Resilience
High
Vulnerability
25.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal spines (total): 3; Dorsal soft rays (total): 9 - 10; Anal spines: 3; Anal soft rays: 9 - 11; Vertebrae: 33 - 34. Iris of males blackish throughout the year. Branched, dorsal fin rays, 9-10 (mode 9); anal fin rays, 9-11 (mode 10). Melanophores on dorsal fin membrane. Karyotype with 2n = 48 (8m + 20sm + 20st). Ovipositor developed in females during breeding season .

🌀 Behaviour

Behavioural data for Rhodeus Pseudosericeus 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; pelagic. Temperate

🌿 Ecology

Zone Preferences
💧 Freshwater 🐟 Pelagic
Trophic Level
2.6±0.2

📐 Morphometrics

Length–Weight Relationship: W = 0.01072 × L3.1 (TL)
Max TL
6.1cm
Dorsal Spines
3
Dorsal Rays
10
Anal Spines
3
Anal Rays
10
Vertebrae
34

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Vulnerable
Assessment Date
2021

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
25.00/100
Low vulnerability
Trophic Level
2.6
Omnivore / Planktivore
Climate Zone
Temperate
Described By
Arai, Jeon & Ueda, 2001

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