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💧 Freshwater 🌡️ Tropical

Redigobius Rivalis

Redigobius rivalis Herre, 1927
Max Length
3.3 cm
Max Weight
-
Lifespan
-
Trophic Level
3.2
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
10.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Redigobius Rivalis (Redigobius rivalis), first described by Herre, 1927 is a tiny fish in the family Gobiidae (order Gobiiformes). Adults typically reach 3.30 cm in maximum length. It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Tropical waters. It is broadly omnivorous, taking invertebrates, plant matter, and detritus.

Scientific Name
Redigobius rivalis
Authority
Herre, 1927
Habitat
Freshwater
Climate
Tropical
Body Shape
Elongated
Max Length
3.3 cm
Trophic Level
3.2
Resilience
High
Vulnerability
10.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal spines (total): 7; Dorsal soft rays (total): 7 - 8; Anal spines: 1; Anal soft rays: 7. This species is characterized by the following: elongated body with laterally much compressed, with back strongly arched, and highest at base of first dorsal, depth 4.3-5 times in length; head moderately convex. 3.4-3.65 in length, its depth 1/9 or 0.1 less than its breadth, which is 1.5-1.6 times its own length; eyes are large, lateral but high up, longer than snout , about 3-3,5 times in head, very close together; mouth moderate in size, oblique with lips rather broad and thick, with posterior angle of the maxillary extending back to beneath anterior half of eye or front margin ot the pupil; teeth very slender needlelike in 3 rows in each jaw, inner row excessively minute, while the other 2 rows are rather elongate and nearly uniform in size; body scaled to eyes, scales in caudal peduncle a little smaller, opercles covered with 3-5 large scales. Colouration: when preserved inalcohol, body color whitish to blackish gray with about 4 distinct short, broad, dorsal crossbands and a median lateral row of 4 prominent black spots; tip of opercle with a blakc =: elongated; Cross section: oval.

🌀 Behaviour

Behavioural data for Redigobius Rivalis 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. Tropical

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3.2±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00708 × L3.07 (TL)
Max TL
3.3cm
Dorsal Spines
7
Dorsal Rays
8
Anal Spines
1
Anal Rays
7

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3.2
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Herre, 1927

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