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🌊 Marine Least Concern 🌡️ Tropical

Saurida Tweddlei

Saurida tweddlei Russell, 2015
Max Length
40.1 cm
Max Weight
-
Lifespan
-
Trophic Level
4.4
Depth
57–127 m
Climate
Tropical
Resilience
Medium
Vulnerability
40.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Saurida Tweddlei (Saurida tweddlei), first described by Russell, 2015 is a large fish in the family Synodontidae (order Aulopiformes). Adults typically reach 40.10 cm in maximum length. It inhabits marine coastal and open-ocean environments. Recorded depth range: 57 to 127 metres. It occurs in Tropical waters. Diet is predominantly piscivorous, targeting other fish and larger prey. On the IUCN Red List, it is classified as Least Concern.

Scientific Name
Saurida tweddlei
Authority
Russell, 2015
Habitat
Marine
Climate
Tropical
IUCN Status
LC
Max Length
40.1 cm
Depth Range
57–127 m
Trophic Level
4.4
Resilience
Medium
Vulnerability
40.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal soft rays (total): 12 - 13; Anal soft rays: 10 - 12; Vertebrae: 49 - 50. This species can be distinguished by the following set of characters: D 12-13; P 14-15; lateral-line scales 53-55; rows of transverse scales 4 1/2 above lateral line, 5 1/2 below lateral line; pectoral fins moderately long (reaching at or just above the line form origin of pelvic fins to origin of dorsal fin); 2 rows of teeth on outer palatines; 0-3 teeth on vomer; tongue with ca. 4-5 rows of teeth posteriorly; caudal peduncle compressed (depth greater than width); stomach and intestine pale whitish .Cross section: oval.

🌀 Behaviour

Behavioural data for Saurida Tweddlei is currently being reviewed.

🦐 Diet

small fish
crustaceans
cephalopods

🥚 Reproduction

🐣 Oviparous 📦 Batch Spawner
Spawning Season
spring-summer
Spawn Location
Pelagic
Fertilization
External

🌍 Habitat & Distribution

Marine; brackish; demersal; depth range 57 - 127 m . Tropical Indian Ocean: Seychelles and Saya de Malha Bank, Mascarene Plateau.

🌿 Ecology

Zone Preferences
🌊 Marine 🌿 Brackish ⬇️ Benthic
Trophic Level
4.4±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00501 × L3.1 (TL)
Max TL
40.1cm
Dorsal Rays
13
Anal Rays
11
Vertebrae
50

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2019

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
40.00/100
Moderate vulnerability
Trophic Level
4.4
Apex / Top predator
Climate Zone
Tropical
Described By
Russell, 2015

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