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🌊 Marine Data Deficient 🌡️ Tropical

Bengal thryssa

Thryssa spinidens Jordan & Seale, 1925
Max Length
16.5 cm
Max Weight
-
Lifespan
-
Trophic Level
3.4
Depth
0–50 m
Climate
Tropical
Resilience
High
Vulnerability
23.00/100
Typical Length
-
Depth Zone
pelagic

📖 Overview

Bengal thryssa (Thryssa spinidens) is a ray-finned fish of the family Engraulidae. It inhabits marine (saltwater) waters in pelagic environments. This species can reach a maximum total length of 16.5 cm. It occurs at depths between 0 and 50 metres. With a trophic level of 3.4, it is a low-level carnivore, feeding on invertebrates and small organisms. It is assessed as Data Deficient on the IUCN Red List.

Scientific Name
Thryssa spinidens
Authority
Jordan & Seale, 1925
Habitat
Marine
Climate
Tropical
Body Shape
Elongated
IUCN Status
DD
Max Length
16.5 cm
Depth Range
0–50 m
Trophic Level
3.4
Resilience
High
Vulnerability
23.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 0; Anal spines: 0; Anal soft rays: 41 - 45. Belly with 16 (rarely 17) + 11 to 13 = 27 to 29 keeled scutes from isthmus to anus. Tip of snout on level with upper rim of eye. Maxilla moderate, projecting a little beyond gill cover; first supra-maxilla minute, usually absent; teeth in jaws enlarged, especially in lower jaw. A dark blotch indistinct or absent behind upper part of gill opening; no dark lines along back.: elongated; Cross section: compressed.

🌀 Behaviour

Behavioural data for Bengal thryssa 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; pelagic-neritic; depth range 0 - 50 m . Tropical; 25°N - 3°N, 85°E - 101°E south to the Indian Ocean coast of Thailand, perhaps to Pinang.

🌿 Ecology

Zone Preferences
🌊 Marine 🐟 Pelagic
Trophic Level
3.4±0.5
🐠 Schooling

📐 Morphometrics

Length–Weight Relationship: W = 0.00437 × L3.11 (TL)
Max TL
16.5cm
Anal Rays
43

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Data Deficient
Assessment Date
2018

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
23.00/100
Low vulnerability
Trophic Level
3.4
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Jordan & Seale, 1925

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