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🌊 Marine Least Concern 🐠 Aquarium 🌡️ Tropical

Saddled dwarfgoby

Trimmatom sagma Winterbottom, 1989
Max Length
2.1 cm
Max Weight
-
Lifespan
-
Trophic Level
3
Depth
10–40 m
Climate
Tropical
Resilience
High
Vulnerability
10.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Saddled dwarfgoby (Trimmatom sagma), first described by Winterbottom, 1989 is a tiny fish in the family Gobiidae (order Gobiiformes). Adults typically reach 2.10 cm in maximum length. It inhabits marine coastal and open-ocean environments. Recorded depth range: 10 to 40 metres. It occurs in Tropical waters. It is broadly omnivorous, taking invertebrates, plant matter, and detritus. On the IUCN Red List, it is classified as Least Concern.The species is kept in the aquarium hobby. Care requirements and behaviour align broadly with other Gobiidae kept in the hobby.

Scientific Name
Trimmatom sagma
Authority
Winterbottom, 1989
Habitat
Marine
Climate
Tropical
Body Shape
Elongated
IUCN Status
LC
Max Length
2.1 cm
Depth Range
10–40 m
Trophic Level
3
Resilience
High
Vulnerability
10.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 6; Dorsal soft rays (total): 11 - 12; Anal soft rays: 10 - 12. Characterized by semi-translucent reddish to yellowish body color with internal red or yellow stripe above verrtebral column; all pelvic fin rays unbranched; fifth pelvic ray 10% length of fourth ray; head and body without scales; very elongate body, depth about 5.9-6.9 in SL .: elongated; Cross section: compressed.

🌀 Behaviour

Behavioural data for Saddled dwarfgoby 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 10 - 40 m . Tropical Central Pacific: Philippines.

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Trophic Level
3±0.3

📐 Morphometrics

Length–Weight Relationship: W = 0.00741 × L3.09 (TL)
Max TL
2.1cm
Dorsal Spines
6
Dorsal Rays
12
Anal Rays
11

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2023

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Winterbottom, 1989

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