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💧 Freshwater Near Threatened 🐠 Aquarium 🌡️ Subtropical

Rhinogobius Filamentosus

Rhinogobius filamentosus Wu, 1939
Max Length
6 cm
Max Weight
-
Lifespan
-
Trophic Level
3.3
Depth
-
Climate
Subtropical
Resilience
High
Vulnerability
14.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Rhinogobius Filamentosus (Rhinogobius filamentosus), first described by Wu, 1939 is a small fish in the family Gobiidae (order Gobiiformes). Adults typically reach 6.00 cm in maximum length. It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Subtropical waters. It feeds on a mix of small fish and invertebrates as a mid-level predator. On the IUCN Red List, it is classified as Near Threatened.The species is kept in the aquarium hobby. Care requirements and behaviour align broadly with other Gobiidae kept in the hobby.

Scientific Name
Rhinogobius filamentosus
Authority
Wu, 1939
Habitat
Freshwater
Climate
Subtropical
Body Shape
Elongated
IUCN Status
NT
Max Length
6 cm
Trophic Level
3.3
Resilience
High
Vulnerability
14.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Rear tip of first dorsal fin extending to the insertion of 6-7 branched rays of second dorsal fin when depressed in male .: elongated.

🌀 Behaviour

Behavioural data for Rhinogobius Filamentosus is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Freshwater; benthopelagic. Subtropical

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3.3±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.01 × L3.15 (TL)
Max TL
6cm

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Near Threatened
Assessment Date
2023

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
14.00/100
Low vulnerability
Trophic Level
3.3
Predator
Body Shape
Elongated
Climate Zone
Subtropical
Described By
Wu, 1939

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