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💧 Freshwater Least Concern 🐠 Aquarium 🌡️ Tropical

Drain mangrovegoby

Mugilogobius rivulus Larson, 2001
Max Length
4.5 cm
Max Weight
-
Lifespan
-
Trophic Level
3.4
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
11.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Facultative air-breathing in the genus ; Inhabits shallow, relatively still, brackish to freshwater creek habitats .

Scientific Name
Mugilogobius rivulus
Authority
Larson, 2001
Habitat
Freshwater
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
4.5 cm
Trophic Level
3.4
Resilience
High
Vulnerability
11.00/100

🐟 Physical Description

Dorsal spines (total): 6 - 7; Dorsal soft rays (total): 7 - 8; Anal spines: 1; Anal soft rays: 7 - 9; Vertebrae: 26. Body with distinct dark oblique shoulder bar, scale margins rimmed with narrow dark line forming reticulate pattern usually overlaid by narrow dark bars and dorsal saddles; 2 dark spot at caudal base . Longitudinal scales 29-33; TRB 9-12; predorsal scales 12-19, small, reaching to above preopercular margin; scales on body mostly ctenoid; first dorsal spine white and always longest, often filamentous . Caudal fin rounded to oval .: fusiform / normal; Cross section: compressed.

🌀 Behaviour

Behavioural data for Drain mangrovegoby is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Freshwater; brackish; benthopelagic. Tropical known only from Northern Territory, Australia.

🌿 Ecology

Zone Preferences
💧 Freshwater 🌿 Brackish
Trophic Level
3.4±0.3

📐 Morphometrics

Length–Weight Relationship: W = 0.01 × L3 (TL)
Max TL
4.5cm
Dorsal Spines
7
Dorsal Rays
8
Anal Spines
1
Anal Rays
8
Vertebrae
26

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2020

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
11.00/100
Low vulnerability
Trophic Level
3.4
Predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Described By
Larson, 2001

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