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🌊 Marine 🌡️ Tropical

Arabian sand diver

Trichonotus arabicus Randall & Tarr, 1994
Max Length
14.5 cm
Max Weight
-
Lifespan
-
Trophic Level
3.4
Depth
0–2 m
Climate
Tropical
Resilience
-
Vulnerability
10.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Arabian sand diver (Trichonotus arabicus), first described by Randall & Tarr, 1994 is a small fish in the family Trichonotidae (order Gobiiformes). Adults typically reach 14.50 cm in maximum length. It inhabits marine coastal and open-ocean environments. Recorded depth range: 0 to 2 metres. It occurs in Tropical waters. It feeds on a mix of small fish and invertebrates as a mid-level predator.

Scientific Name
Trichonotus arabicus
Authority
Randall & Tarr, 1994
Habitat
Marine
Climate
Tropical
Body Shape
Elongated
Max Length
14.5 cm
Depth Range
0–2 m
Trophic Level
3.4
Vulnerability
10.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 3 - 4; Dorsal soft rays (total): 44 - 47; Anal spines: 1; Anal soft rays: 36 - 39; Vertebrae: 52 - 54. Females with an indistinct narrow dark stripe on body above lateral line and no black on anterior part of dorsal fin; males with a longitudinal row of 14 brown spots and 3 rows of small, dark edged, pale blue spots on body; dorsal and anal fins with a row of yellow dots on each membrane.: elongated.

🌀 Behaviour

Behavioural data for Arabian sand diver 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; depth range 0 - 2 m . Tropical Indian Ocean: Persian Gulf to southern Oman.

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Trophic Level
3.4±0.45
Food Items

zooplankton about half a meter above the sand substratum (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.00389 × L3.12 (TL)
Max TL
14.5cm
Dorsal Spines
4
Dorsal Rays
46
Anal Spines
1
Anal Rays
38
Vertebrae
53

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

📊 Population Risk & Fisheries

Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3.4
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Randall & Tarr, 1994

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