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🌊 Marine 🌡️ Tropical

Mikey’s golden pygmygoby

Trimma berumeni Ayora, Rich, Fox & Coker, 2025
Max Length
1.4 cm
Max Weight
-
Lifespan
-
Trophic Level
-
Depth
15–30 m
Climate
Tropical
Resilience
High
Vulnerability
10.00/100
Typical Length
-
Depth Zone
-

📖 Overview

This species inhabits caves of exposed offshore reefs, where it moves along the surface of cave roofs and walls in small groups of three to ten individuals (occasionally it is also solitary). It is usually found deep within caves, rarely seen within the first 80 cm of a cave entrance. Its habitat is similar to that of its sister species, Trimma winchi, in the Seychelles (Ryan Daly pers. comm.). Specimens were collected at depths between 15 and 30 m, only two specimens were observed shallower than 20 m, it is relatively common in caves at 30 m. Samplings and surveys were limited to 30 m, but it is likely that the species extends to greater depths. The species is observed this species exclusively on reefs with steep walls that extend well into the mesophotic .

Scientific Name
Trimma berumeni
Authority
Ayora, Rich, Fox & Coker, 2025
Habitat
Marine
Climate
Tropical
Body Shape
Fusiform / normal
Max Length
1.4 cm
Depth Range
15–30 m
Resilience
High
Vulnerability
10.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 7; Dorsal soft rays (total): 7. This species is distinguished by the following set of characters: predorsal midline with 7-8 scales; fifth pelvic-fin ray is unbranched and 40–42% length of fourth ray; cheek and opercle are scaleless; all pectoral-fin rays unbranched; D VI + I,7; no elongate spines in dorsal fin; bony interorbital width 81–84% of pupil diameter. Colouration: body bright yellow throughout and without bars in life; iris golden-yellow with melanophores except for the golden ring around pupil and inverted golden triangle extending from ventral margin of pupil; fins are translucent with yellow-green longitudinal band in central third of dorsal fins; a thin black midlateral line from above pectoral-fin base to the caudal-fin base, visible in life and in preservative .: fusiform / normal; Cross section: oval.

🌀 Behaviour

Behavioural data for Mikey’s golden pygmygoby 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; benthopelagic; depth range 15 - 30 m . Tropical Indian Ocean: Red Sea, Saudi Arabia.

🌿 Ecology

Zone Preferences
🌊 Marine
🧍 Solitary

📐 Morphometrics

Length–Weight Relationship: W = 0.01023 × L3.01 (TL)
Max TL
1.4cm
Dorsal Spines
7
Dorsal Rays
7

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
10.00/100
Low vulnerability
Body Shape
Fusiform / normal
Climate Zone
Tropical
Described By
Ayora, Rich, Fox & Coker, 2025

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