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💧 Freshwater Least Concern 🐠 Aquarium 🌡️ Temperate

Forktongue goby

Chaenogobius annularis Gill, 1859
Max Length
16 cm
Max Weight
-
Lifespan
-
Trophic Level
3.5
Depth
-
Climate
Temperate
Resilience
High
Vulnerability
26.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Forktongue goby (Chaenogobius annularis) is a ray-finned fish of the family Gobiidae. It inhabits freshwater waters in benthic environments. This species can reach a maximum total length of 16 cm. With a trophic level of 3.5, it is a low-level carnivore, feeding on invertebrates and small organisms. It is assessed as Least Concern on the IUCN Red List.

Scientific Name
Chaenogobius annularis
Authority
Gill, 1859
Habitat
Freshwater
Climate
Temperate
Body Shape
Elongated
IUCN Status
LC
Max Length
16 cm
Trophic Level
3.5
Resilience
High
Vulnerability
26.00/100
Salinity
0–0.5 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 6 - 7; Dorsal soft rays (total): 9 - 12; Anal spines: 1; Anal soft rays: 8 - 10; Vertebrae: 32 - 33. This species is characterized by the following: scales in longitudinal series 61-67, transverse series 20-22, predorsal scales 17-24; a pair of sensory papillae in row f; modal ray count of second dorsal fin I,10; modal AP 2; modal vertebrae count 14+18; dorsal fins light brown with distinct dark-brown with wavy longitudinal bands; caudal and pectoral fins light brown with distinct dark-brown transverse bands; body and head light brown with approximately 6 broad, dark transverse bands; caudal fin base with several small, black spots and distinct blotch .: elongated.

🌀 Behaviour

Behavioural data for Forktongue goby is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Freshwater; demersal. Temperate; 54°N - 34°N, 114°E - 141°E

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Trophic Level
3.5±0.5

📐 Morphometrics

Length–Weight Relationship: W = 0.00708 × L3.07 (TL)
Max TL
16cm
Dorsal Spines
7
Dorsal Rays
11
Anal Spines
1
Anal Rays
9
Vertebrae
33

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2007

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
26.00/100
Low vulnerability
Trophic Level
3.5
Predator
Body Shape
Elongated
Climate Zone
Temperate
Described By
Gill, 1859

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 6 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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