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Diadromous Data Deficient 🌡️ Tropical

Eugnathogobius Indicus

Eugnathogobius indicus Larson, 2009
Max Length
2.7 cm
Max Weight
-
Lifespan
-
Trophic Level
3.4
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
10.00/100
Typical Length
-
Depth Zone
-

📖 Overview

The species appears to be marine to estuarine in habitats. The specimens from the freshwater well on Aldabra are intriguing in their isolation .

Scientific Name
Eugnathogobius indicus
Authority
Larson, 2009
Habitat
Diadromous
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
DD
Max Length
2.7 cm
Trophic Level
3.4
Resilience
High
Vulnerability
10.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 7; Dorsal soft rays (total): 13 - 14; Anal spines: 1; Anal soft rays: 6 - 8; Vertebrae: 26. Small, slender-bodied Eugnathogobius; first dorsal fin VI; second dorsal rays I, 7-8, modally I,7; anal rays I, 6-8, modally I, 7; pectoral rays 15-17, modally 16; longitudinal scales 32-41; TRB 10-13; headpores absent; predorsal scales 14-20; scales on body small, mostly ctenoid; gill opening restricted to just under opercle; colour pale yellowish with dark scale margins in network pattern and variably distinct dark stripe along mid-side of body .: fusiform / normal; Cross section: compressed.

🌀 Behaviour

Behavioural data for Eugnathogobius Indicus is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous 📦 Batch Spawner
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Marine; freshwater; brackish; benthopelagic. Tropical Indian Ocean: Mozambique, Kenya and Aldabra Atoll in the Seychelles (Ref.

🌿 Ecology

Zone Preferences
🌊 Marine 💧 Freshwater 🌿 Brackish
Trophic Level
3.4±0.5

📐 Morphometrics

Length–Weight Relationship: W = 0.01 × L3 (TL)
Max TL
2.7cm
Dorsal Spines
7
Dorsal Rays
14
Anal Spines
1
Anal Rays
7
Vertebrae
26

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Data Deficient
Assessment Date
2017

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3.4
Predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Described By
Larson, 2009

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