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🌊 Marine Least Concern 🐠 Aquarium 🌡️ Tropical

Lifehouse dwarfgoby

Trimmatom pharus Winterbottom, 2001
Max Length
2.2 cm
Max Weight
-
Lifespan
-
Trophic Level
3
Depth
0–28 m
Climate
Tropical
Resilience
High
Vulnerability
10.00/100
Typical Length
-
Depth Zone
reef

📖 Overview

Lifehouse dwarfgoby (Trimmatom pharus), first described by Winterbottom, 2001 is a tiny fish in the family Gobiidae (order Gobiiformes). Adults typically reach 2.20 cm in maximum length. It inhabits marine coastal and open-ocean environments. Recorded depth range: 0 to 28 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 pharus
Authority
Winterbottom, 2001
Habitat
Marine
Climate
Tropical
Body Shape
Elongated
IUCN Status
LC
Max Length
2.2 cm
Depth Range
0–28 m
Trophic Level
3
Resilience
High
Vulnerability
10.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 6; Dorsal soft rays (total): 9; Anal soft rays: 9. Trimmatom pharus differs from T. nanus, T. offucius, and T. sagma in possessing scales on the body (vs naked) and branched pelvic fin rays (vs unbranched). Trimmatom zapotes, T. macropodus, and T. pharus all have body scales but T. zapotes has unbranched pelvic fin rays, and T. macropodus has the first four pelvic fin rays branched. Trimmatom pharus shares many meristic characteristics with T. eviotops including the presence of body scales and the branching of the first four pelvic fin rays; the two species do, however, differ in details of colour pattern. In preserved specimens the first body bar on T. eviotops crosses the pectoral base and the extends over the dorsum, passing backwards to the dorsal fin. In Trimmatom pharus the body bar which crosses the pectoral base crosses the dorsal surface anterior to the dorsal fin. Trimmatom eviotops has a broad dark saddle on the dorsall half of the caudal peduncle, while Trimmatom pharus has a narrow body bar or small dark saddle .: elongated; Cross section: compressed.

🌀 Behaviour

Behavioural data for Lifehouse 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; reef-associated; depth range 0 - 28 m . Tropical West Pacific: Seychelles, Cargados Carajos, Chagos Archipelago to Sumatra and the Philippines, north to Japan, south to Papua New Guinea, the Solomon Islands, and the Timor Sea.

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Trophic Level
3±0.3

📐 Morphometrics

Length–Weight Relationship: W = 0.00741 × L3.09 (TL)
Max TL
2.2cm
Dorsal Spines
6
Dorsal Rays
9
Anal Rays
9

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2017

📊 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, 2001

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