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🌊 Marine Least Concern 🐠 Aquarium 🌡️ Tropical

Black minigoby

Bathygobius niger Smith, 1960
Max Length
6.6 cm
Max Weight
-
Lifespan
-
Trophic Level
3.4
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
13.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Black minigoby (Bathygobius niger), first described by Smith, 1960 is a small fish in the family Gobiidae (order Gobiiformes). Adults typically reach 6.60 cm in maximum length. It inhabits marine coastal and open-ocean environments. It occurs in Tropical 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 Least Concern.The species is kept in the aquarium hobby. Care requirements and behaviour align broadly with other Gobiidae kept in the hobby.

Scientific Name
Bathygobius niger
Authority
Smith, 1960
Habitat
Marine
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
6.6 cm
Trophic Level
3.4
Resilience
High
Vulnerability
13.00/100
Migration
Non-migratory
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 7; Dorsal soft rays (total): 10; Anal spines: 1; Anal soft rays: 8. Upper 6 or 7 pectoral rays free from membrane, with 4-7 branches; head very depressed; upper jaw protrudes; mental frenum usually with a straight or slightly curved margin; V frenum with a smooth margin; prepelvic area naked. TRB 23-24; PD 14-18.: fusiform / normal; Cross section: circular.

🌀 Behaviour

Behavioural data for Black minigoby is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous 📦 Batch Spawner
Spawning Season
spring-summer
Spawn Location
Pelagic
Fertilization
External

🌍 Habitat & Distribution

Marine; demersal; non-migratory. Tropical South Africa, India and Sri Lanka.

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Migration
Non-migratory
Trophic Level
3.4±0.5

📐 Morphometrics

Length–Weight Relationship: W = 0.01023 × L3.01 (TL)
Max TL
6.6cm
Dorsal Spines
7
Dorsal Rays
10
Anal Spines
1
Anal Rays
8

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2023

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
13.00/100
Low vulnerability
Trophic Level
3.4
Predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Described By
Smith, 1960

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