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Diadromous Least Concern 🌡️ Tropical

Redigobius Tambujon

Redigobius tambujon Bleeker, 1854
Max Length
4.5 cm
Max Weight
-
Lifespan
-
Trophic Level
3.3
Depth
0–5 m
Climate
Tropical
Resilience
High
Vulnerability
11.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Adults inhabit sea and rivers . Found in estuaries and lower (tidal) reaches of freshwater streams . Usually recorded from swift flowing streams, often described as cascades or cascade zone, above or below waterfalls, with solid rock, boulder and gravel substrate. A few sites consisted of mud and sand substrates and one was from a mangrove only 50 m from the shoreline. Gut content of one specimen from Palau contained insect remains and a few nematodes .

Scientific Name
Redigobius tambujon
Authority
Bleeker, 1854
Habitat
Diadromous
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
4.5 cm
Depth Range
0–5 m
Latitude
20°S – 17°N
Trophic Level
3.3
Resilience
High
Vulnerability
11.00/100
Migration
Amphidromous
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 7; Dorsal soft rays (total): 6 - 8; Anal spines: 1; Anal soft rays: 6 - 7. Distinguished by the following characteristics: slender with compressed head and body; greatly enlarged jaws in adult males with lips distinctively broadened anteriorly and narrowed below eye; body with scale margins outlined forming reticulate pattern; dark band along mid-side of body; head with 4-6 curved oblique dark bands crossing cheek and small dark mark behind upper rear part of eye; variably sized black blotch on posterior part of first dorsal fin; second dorsal rays I,6-8; anal rays I,6-7; pectoral rays 15-18; longitudinal scales 22-25; TRB 7-8 1/2; predorsal scales 6-9 .: fusiform / normal.

🌀 Behaviour

Behavioural data for Redigobius Tambujon 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; amphidromous ; depth range 0 - 5 m . Tropical; 17°N - 20°S

🌿 Ecology

Zone Preferences
🌊 Marine 💧 Freshwater 🌿 Brackish
Migration
Amphidromous
Trophic Level
3.3±0.4

📐 Morphometrics

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

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ 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
3.3
Predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Latitude Range
17°N – 20°S
Described By
Bleeker, 1854

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