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🌊 Marine 🌡️ Tropical

Bengal sand diver

Trichonotus cyclograptus Alcock, 1890
Max Length
11 cm
Max Weight
-
Lifespan
-
Trophic Level
3.4
Depth
18–23 m
Climate
Tropical
Resilience
-
Vulnerability
10.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Bengal sand diver (Trichonotus cyclograptus) is a ray-finned fish of the family Trichonotidae. It inhabits marine (saltwater) waters in benthic environments. This species can reach a maximum total length of 11 cm. It occurs at depths between 18 and 23 metres. With a trophic level of 3.4, it is a low-level carnivore, feeding on invertebrates and small organisms.

Scientific Name
Trichonotus cyclograptus
Authority
Alcock, 1890
Habitat
Marine
Climate
Tropical
Body Shape
Elongated
Max Length
11 cm
Depth Range
18–23 m
Trophic Level
3.4
Vulnerability
10.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 4; Dorsal soft rays (total): 45 - 46; Anal soft rays: 37 - 38; Vertebrae: 53. This species is distinguished from other congeners in having the following set of characters: elongated dorsal-fin spines in males absent; D IV,45-46; A 37-38; lateral-line scales 57-59; free dorsal pterygiophores 2; gill rakers 6+23; in males body markings 12; median predorsal-fin scales 10; interorbital width 43.7% of eye diameter; small abdominal scales .: elongated; Cross section: circular.

🌀 Behaviour

Behavioural data for Bengal 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 18 - 23 m . Tropical Indian Ocean: Bay of Bengal.

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Trophic Level
3.4±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00389 × L3.12 (TL)
Max TL
11cm
Dorsal Spines
4
Dorsal Rays
46
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
Alcock, 1890

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